SMFL283R3S/KR [CRANE]
DC/DC CONVERTERS 28 VOLT INPUT; DC / DC转换器， 28伏特的输入
| 型号： | SMFL283R3S/KR |
| 厂家： | 
Crane Aerospace & Electronics. |
| 描述： | DC/DC CONVERTERS 28 VOLT INPUT |
| 文件： | 总10页 (文件大小：206K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FEATURES
SMFL SERIES
65 WATT
DC/DC CONVERTERS
28 VOLT INPUT
• Fully qualified to Class H or K
• –55° to +125°C operation
• 16 to 40 VDC input
• Fully Isolated
• Magnetic feedback
• Fixed frequency, 600 kHz typical
• Topology – Single Ended Forward
• Inhibit input side and output side
• Sync function
• Output trim on single output models
• Indefinite short circuit protection
• Remote sense on single output models
• Up to 87% efficiency
MODELS
VDC OUTPUT
SINGLE
3.3
5
DUAL
5
12
15
12
15
• Parallelable up to 180 watts
Size (max.): 3.005 x 1.505 x 0.410 inches (76.33 x 38.23 x 10.41 mm)
See Figures 17 and 18 for dimensions. Case options V, W, Y, and
Z are available by special order. Please refer to our databook or
contact your Interpoint representative for more information.
Weight:
85 grams maximum
Screening: Space prototype, Class H, or Class K (MIL-PRF-38534)
Radiation hardness levels O or R
Available configurations: OO, HO, HR, KR
DESCRIPTION
INHIBIT
The SMFL Series™ 28-volt DC/DC converters are rated up to 65
watts output power over a -55° to +125°C temperature range with a
28 Vdc nominal input. On dual output models up to 70% of the rated
output power can be drawn from either the positive or negative
outputs. Current sharing allows the units to be paralleled for total
power of up to 180 watts. The welded, hermetically sealed package
is only 3.0 x 1.5 x 0.40 inches, giving the series an overall power
density of up to 45 watts per cubic inch.
The SMFL Series converters have two TTL compatible inhibit termi-
nals (INH1 and INH2) that can be used to disable power conversion,
resulting in a very low quiescent input current and no generation of
switching noise. An open collector TTL compatible low (<0.8 volts)
is required to inhibit the converter between INH1 (pin 4) and Input
Common (pin 2). An open collector TTL compatible low (<0.5 volts)
is required to inhibit the converter between INH2 (pin 12) and Output
Common (pin 8). The application of intermediate voltages to these
pins (1.5 to 10.5 volts) should be avoided.
SCREENING AND REPORTS
SMFL converters offer three screening options (Space prototype,
Class H, or Class K) and two levels of radiation hardness (O or R).
See Tables 1, 2, and 3 for more information. Detailed reports on
product performance are also available and are listed in Table 4.
SYNC
Converters may be synced to an external clock (525 to 675 kHz) or
to one another by using the sync in or out pins. The nominal free-
run switching frequency is 600 kHz.
DESIGN FEATURES
CURRENT AND PARALLEL OPERATION
The SMFL Series converters are switching regulators that use a
quasi-square wave, single ended forward converter design with a
constant switching frequency of 600 kHz typical.
Multiple single output SMFL converters may be used in parallel to
drive a common load. In this mode of operation the load current is
shared by two or three SMFL converters. In current sharing mode,
one SMFL converter is designated as a master. The SLAVE pin (pin
11) of the master is left unconnected and the MSTR/INH2 pin (pin
12) of the master is connected to the SLAVE pin (pin 11) of the slave
units. The units designated as slaves have the MSTR/INH2 pin (pin
12) connected to the SNS RTN pin (pin 9). Note that synchronizing
the units together is not required for current sharing operation. A
second slave unit may be placed in parallel with a master and slave;
this requires the TRI pin (pin 3) of the master unit to be connected
to the SNS RTN pin (pin 9). See Figure 2 for a block diagram of
parallel connections.
Isolation between input and output circuits is provided with a trans-
former in the forward path and a wide bandwidth magnetic coupling
in the feedback control loop. The SMFL uses a unique dual loop
feedback technique that controls output current with an inner feed-
back loop and an output voltage with a cascaded voltage mode
feedback loop.
The additional secondary current mode feedback loop improves
transient response in a manner similar to primary current mode
control and allows for ease of paralleling, but without the cost and
complexity.
When paralleled, 95% of the total combined power ratings of the
SMFL converters are available at the load. Overload and short
circuit performance are not adversely affected during parallel
operation.
The constant frequency, pulse-width modulated converters use a
quasi-square wave single-ended forward design. Tight load regula-
tion is achieved through a wide-bandwidth magnetic feedback
circuit. The output voltage on single SMFL models can be trimmed
to a specific output voltage by adding an external resistor.
1
SMFL SERIES
65 WATT
DC/DC CONVERTERS
ABSOLUTE MAXIMUM RATINGS
SYNC AND INHIBIT (INH1, INH2)
Sync In (525 to 675 kHz)
• Duty cycle 40% min, 60% max
• Logic low 0.8 V max
• Logic high 4.5 V min, 9 V max
• Referenced to input common
• If not used, connect to input common
Sync Out
• Referenced to input common
• If not used, leave unconnected
Inhibit (INH1, INH2) TTL Open Collector
• Logic low (output disabled)
INH1 referenced to input common
Logic low 0.8 V max
Inhibit pin current 10 mA max
INH2 referenced to output common
Logic low 0.5 V max
Inhibit pin current 5 mA max
• Logic high (output enabled)
Open collector
TYPICAL CHARACTERISTICS
Input Voltage
• 16 to 40 VDC
Output Voltage Temperature Coefficient
• 100 ppm/°C typical
Input to Output Capacitance
• 150 pF, typical
Isolation
• 100 megohm minimum at 500 V
Audio Rejection
Power Dissipation (Pd)
• 14 watts (16 watts SMFL2805S, SMFL2805D)
Output Power
• 40 to 65 watts depending on model
Lead Soldering Temperature (10 sec per lead)
• 300°C
• 50 dB typical
Conversion Frequency
Storage Temperature Range (Case)
• –65°C to +150°C
• Free run mode 600 kHz typical
550 kHz. min, 650 kHz max
• External sync range 525 to 675 kHz
Inhibit Pin Voltage (unit enabled)
• INH1 = 9 to12 V, INH2 = 6 to 9 V
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range
• 16 to 40 VDC continuous
Case Operating Temperature (Tc)
• –55°C to +125°C full power
PINS NOT USED
TR1, Master, and Slave
If not used, leave unconnected
• If not used, leave unconnected
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified.
SINGLE OUTPUT MODELS
SMFL283R3S
SMFL2805S
SMFL2812S
SMFL2815S
PARAMETER
CONDITION
MIN TYP MAX
MIN TYP MAX
MIN TYP MAX
MIN TYP MAX
UNITS
OUTPUT VOLTAGE
Tc = 25°C
3.27 3.3 3.33
4.95 5.00 5.05
11.88 12.00 12.12
14.85 15.00 15.15
VDC
OUTPUT CURRENT
OUTPUT POWER
V
V
= 16 TO 40 VDC
= 16 TO 40 VDC
0
0
—
—
12
40
0
0
—
—
10
50
0
0
—
—
5
0
0
—
—
4.33
65
A
IN
IN
60
W
OUTPUT RIPPLE
Tc = 25°C
—
—
10
10
35
50
—
—
15
30
35
50
—
—
30
45
75
—
—
30
45
85
mV p-p
VOLTAGE 10 k - 2 MHz Tc = –55°C to +125°C
100
110
LINE REGULATION
V
= 16 to 40 VDC
—
—
0
20
20
—
—
0
20
20
—
—
0
20
20
—
—
0
20
20
mV
mV
IN
LOAD REGULATION
INPUT VOLTAGE
NO LOAD TO FULL
—
—
—
—
CONTINUOUS
1, 4
16
—
28
—
40
50
16
—
28
—
40
50
16
—
28
—
40
50
16
—
28
—
40
50
VDC
V
TRANSIENT
50 ms
INPUT CURRENT
NO LOAD
—
—
—
70
—
9
100
2.1
14
—
—
—
70
—
9
120
2.5
14
—
—
—
50
—
9
80
2.8
14
—
—
—
50
—
9
80
3.0
14
mA
A
FULL LOAD
INHIBITED - INH1
mA
INHIBITED - INH2
—
35
70
—
35
70
—
35
70
—
35
70
INPUT RIPPLE
CURRENT
10 kHz - 10 MHz
—
15
—
50
—
—
15
80
50
—
—
15
86
50
—
—
15
87
50
—
mA pp
%
EFFICIENCY
Tc = 25°C
POWER DISSIPATION
SHORT CIRCUIT
Tc = 25°C
70
75
81
82
2
LOAD FAULT
—
—
12.5 14
1.5
—
—
12.5 16
1.5
—
—
10
14
4
—
—
10
14
4
W
RECOVERY
4
4
1.5
1.5
ms
STEP LOAD RESP.
50% – 100% – 50%
TRANSIENT
—
—
200 300
1.5 3.0
—
—
250 350
1.5 3.0
—
—
450 700
1.5 3.0
—
—
500 700
1.5 3.0
mV p
ms
3, 4
RECOVERY
3, 4
STEP LINE RESP
.
16 – 40 – 16 VDC
TRANSIENT
—
—
250 300
—
—
250 300
200 300
—
—
250 400
200 300
—
—
250 400
200 300
mV pk
µs
RECOVERY
200
30
START-UP
Notes
DELAY
—
—
3.5
0
6
—
—
3.5
0
6
—
—
3.5
0
6
—
—
3.5
0
6
ms
4
OVERSHOOT
25
25
50
50
mV pk
1. Unit will shut down above approximately 45V but will be undamaged and
will restart when voltage drops into normal range.
3. Recovery time is measured from application of the transient to point at
which Vout is within 1% of final value.
2. Indefinite short circuit protection not guaranteed above 125°C case.
4. Guaranteed but not tested.
2
SMFL SERIES
65 WATT
DC/DC CONVERTERS
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified.
DUAL OUTPUT MODELS
PARAMETER
OUTPUT VOLTAGE
SMFL2805D
SMFL2812D
MIN TYP MAX
11.88 12.00 12.12 14.85 15.00 15.15
11.82 12.00 12.18 14.77 15.00 15.23
SMFL2815D
MIN TYP MAX
CONDITIONS
+V
MIN TYP MAX
4.95 5.00 5.05
4.92 5.00 5.08
UNITS
OUT
OUT
VDC
Tc = 25°C
–V
1
OUTPUT CURRENT
V = 16 TO 40 VDC
IN
EACH OUTPUT
TOTAL OUTPUT
0
0
—
—
7
0
0
—
—
3.5
5
0
0
—
—
3.03
4.33
A
10
OUTPUT POWER
OUTPUT RIPPLE
V
= 16 TO 40 VDC
0
—
50
0
—
60
0
—
65
W
IN
VOLTAGE
V
10 kHz - 2 MHz
= 16 TO 40 VDC
—
50
100
—
50
120
—
50
150
mV p-p
mV
OUT
LINE REGULATION
V
IN
+V
–V
—
—
0
50
—
—
0
50
—
—
0
50
OUT
25
100
25
100
25
100
OUT
LOAD REGULATION
CROSS REGULATION
NO LOAD TO FULL
+V
—
0
50
—
—
10
100
—
—
10
100
OUT
mV
%
–V
OUT
—
25
100
50
120
50
150
SEE NOTE 2
SEE NOTE 3
—
—
5
3
8
6
—
—
2
2
4
4
—
—
2
2
4
4
INPUT VOLTAGE
INPUT CURRENT
CONTINUOUS
4, 7
16
—
—
—
—
—
28
—
50
—
9
40
50
16
—
—
—
—
—
28
—
50
—
9
40
50
16
—
—
—
—
—
28
—
50
—
9
40
50
VDC
V
TRANSIENT
50 ms.
NO LOAD
120
2.40
14
100
2.80
14
100
3.00
14
mA
A
FULL LOAD
INHIBITED - INH1
INHIBITED - INH2
mA
35
70
35
70
35
70
INPUT RIPPLE
CURRENT
10 kHz - 10 MHz
BALANCED LOAD
POWER DISSIPATION
SHORT CIRCUIT
RECOVERY
—
15
80
50
—
—
15
86
50
—
—
15
87
50
—
mA p-p
%
EFFICIENCY
75
81
82
5
LOAD FAULT
—
—
12.5
1.5
16
—
—
10
14
—
—
10
14
W
4.0
1.5
4.0
1.5
4.0
ms
STEP LOAD
50 %–100%– 50% LOAD
TRANSIENT
RESPONSE
V
—
—
250
1.5
350
3.0
—
—
450
1.5
600
3.0
—
—
500
1.5
600
3.0
mV pk
ms
OUT
6, 7
RECOVERY
6, 7
STEP LINE
RESPONSE
16 – 40 – 16 V
IN
7
V
TRANSIENT
—
250
300
—
250
400
—
250
400
mV pk
OUT
RECOVERY
DELAY
—
—
200
3.5
300
6
—
—
200
3.5
300
6
—
—
200
3.5
300
6
µs
START–UP
ms
7
OVERSHOOT
—
0
25
—
0
50
—
0
50
mV pk
Notes
1. Up to 70% of the total output power is available from either output providing
the opposite output is simultaneously carrying 30% of the total power.
2. Effect on the negative output under the following conditions:
+P 30% to 70%; –P 70% to 30%
4. Unit will shut down above approximately 45V but will be undamaged and will
restart when voltage drops into normal range.
5. Indefinite short circuit protection not guaranteed above 125°C case.
6. Recovery time is measured from application of the transient to point at which
Vout is within 1% of final value.
out
out
3. Effect on the negative output under the following conditions:
+P 50%; –P 10% to 50%
7. Guaranteed but not tested.
out
out
3
SMFL SERIES
65 WATT
DC/DC CONVERTERS
SINGLE OUTPUT MODELS CONNECTION DIAGRAMS - SENSE AND PARALLEL
12
11
10
9
1
2
3
4
5
6
Positive Input
Input Common
TR1
MSTR/INH2
Slave
+
28V
–
Pos. Sense
INH1
Sense Return
Output Common
Positive Output
Inhibit
–
8
Sync Out
Sync In
7
+
Sync In
R
L
REMOTE SENSE CONNECTION
12
11
10
9
1
2
3
4
5
6
Positive Input
MSTR/INH2
Slave
+
28V
Input Common
TR1
–
RA
Pos. Sense
Inhibit
INH1
Sense Return
Output Common
Positive Output
–
8
Sync Out
Sync In
7
+
Sync In
R
L
OUTPUT VOLTAGE ADJUST CONNECTION
RA (OHMS)
VOUT INCREASE
5–V
(VOLT)
12–V 15–V
0.1
70
25
20
0.2
0.3
0.4
0.5
140
210
280
350
50
40
75
60
100
125
80
100
FIGURE 1: SENSE CONNECTIONS AND TRIM TABLE
12
11
10
9
1
2
3
4
5
6
Positive Input
Input Common
TR1
MSTR/INH2
Slave
+
28V
–
Pos. Sense
MASTER
Inhibit
INH1
Sense Return
Output Common
Positive Output
–
8
Sync Out
Sync In
7
+
Sync In
R
L
CONNECT ONLY WHEN 2 SLAVES ARE USED
12
11
10
9
1
2
3
4
5
6
Positive Input
Input Common
TR1
MSTR/INH2
Slave
Pos. Sense
SLAVE 1
INH1
Sense Return
Output Common
Positive Output
8
Sync Out
Sync In
7
1
2
3
4
5
6
12
11
10
9
Positive Input
Input Common
TR1
MSTR/INH2
Slave
Pos. Sense
SLAVE 2
INH1
Sense Return
Output Common
Positive Output
8
Sync Out
Sync In
7
FIGURE 2: PARALLEL CONNECTIONS
4
SMFL SERIES
65 WATT
DC/DC CONVERTERS
PIN OUT
Pin Single Output
Dual Output
Positive Input
Input Common
Triple (TRI)
Angled corner indicates pin one.
1
2
Positive Input
Input Common
Triple (TRI)
Inhibit 1 (INH1)
Sync Out
3
4
Inhibit 1 (INH1)
Sync Out
1
2
3
4
5
6
12
11
10
9
5
6
Sync In
Sync In
7
Positive Output
Positive Output
TOP VIEW
SMFL
(Pin side, marked side)
8
Output Common Output Common
9
Sense Return
Positive Sense
Slave
Negative Output
No connection
Slave
10
11
12
8
7
Master / Inhibit 2 Master / Inhibit 2
Pin
6 should be connected to input common if
See Figures 17 and 18 for dimensions.
external sync (Sync In) is not used.
Sense pins must be connected to their respective
outputs if not used.
FIGURE 3: PIN OUT
SMD NUMBERS
STANDARD MICROCIRCUIT
DRAWING (SMD)
SMFL SERIES
SIMILAR PART
MODEL NUMBERING KEY
IN PROCESS
5962-9316302HXC
IN PROCESS
IN PROCESS
IN PROCESS
SMFL283R3S/HO
SMFL2805S/HO
SMFL2812S/HO
SMFL2815S/HO
SMFL2805D/HO
SMFL2812D/HO
SMFL2815D/HO
SMFL 28 05
S
/
K
R
Base Model
Input Voltage
Output Voltage
IN PROCESS
5962-9319302HXC
Number of Outputs
(S = single, D = dual)
Screening
The SMD number shown is for Class H screening, non-
flanged, and no Radiation Hardness Assurance (RHA) level.
See the SMD for the numbers for other screening and radia-
tion levels. For exact specifications for an SMD product, refer
to the SMD drawing. Call your Interpoint representative for
status on the SMFL SMD releases which are “in process.”
SMDs can be downloaded from
Radiation Level
http://www.dscc.dla.mil/programs/smcr
Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, free run, unless otherwise specified.
90
85
80
75
70
65
60
90
85
90
85
80
16V
16V
16V
28V
28V
80
75
70
28V
40V
75
70
65
60
40V
40V
65
60
10 20 30 40 50 6065
Output Power (Watts)
10
20
30
40
50
10
20
30
40
50
60
Output (Watts)
Output Power (Watts)
SMFL2805S & SMFL2805D Efficiency
SMFL2815S & SMFL2815D Efficiency
SMFL2812S & SMFL2812D Efficiency
FIGURE 4
FIGURE 5
FIGURE 6
5
SMFL SERIES
65 WATT
DC/DC CONVERTERS
Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, free run, unless otherwise specified.
90
16 V
0.
20.
IN
85
80
75
70
28 V
IN
Vout
40.
40 V
IN
60.
80.
65
60
Vin
100.
0.1
1
10
100
0
10 20 30 40 50 60 70
Output Power (Watts)
50 µs/div
Frequency (kHz)
16 to 40 V
SMFL2805S Step Line Response
SMFL Series Audio Rejection
SMFL2828S Efficiency
FIGURE 7
FIGURE 8
FIGURE 9
100% to 50%
Vin
Vin
+Vout
Vout
50% to 100%
1ms/div
–Vout
1ms/div
No Load
50 µs/div
16 to 40 V
SMFL2815D Step Line Response
SMFL2805S Step Load Response
SMFL2805S Turn On Response
FIGURE 10
FIGURE 11
FIGURE 12
8
6
50% to 100%
–Pout = 32.5W
V
IN
+Vout
SMFL2805D
4
2
SMFL2812D
0
SMFL2815D
– 2
– 4
100% to 50%
1ms/div
SMFL2815D Step Load Response
–Vout
– 6
– 8
1ms/div
No Load
30
40
50
60
70
Output Load (%)
SMFL2815D Turn On Response
+Pout 80 to 20 %, –Pout 20 to 80%
Cross Regulation
FIGURE 14
FIGURE 15
FIGURE 13
16
SMFL2815S & 15D
15
14
13
SMFL2805S & 5D
12
SMFL2812S & 12D
11
10 20 30 40 50 60 65
Output Power (Watts)
Low Line Dropout
FIGURE 16
6
SMFL SERIES
65 WATT
DC/DC CONVERTERS
Angled corner indicates pin one
CASE U
TOP VIEW
1.505 max (38.23)
(PIN SIDE)
See Figure 18 for dimensions
3.005 (76.33) max.
Materials
Header Cold Rolled Steel/Nickel/Gold
Cover Kovar/Nickel
Pins
#52 alloy/Gold
compression glass seal
FIGURE 17: CASE U MAXIMUM DIMENSIONS
Seam Seal
Angled corner
indicates pin one.
0.23 (5.8) Lead Length
0.128 dia
(3.25).
1.505 (38.23) max.
1.380 (35.05)
0.040 dia
(1.02)
1.250 (31.75)
1.050 (26.67)
0.850 (21.59)
0.650 (16.51)
0.450 (11.43)
TOP VIEW CASE U
0.250 (6.35)
0.120 (3.05)
0.000
FIGURE 18: CASE U
CAUTION
Case dimensions in inches (mm)
Heat from reflow or wave soldering may damage the
device. Solder pins individually with heat application not
exceeding 300°C for 10 seconds per pin.
Tolerance 0.005 (0.13) for three decimal places, 0.01
(0.2) for two decimal places unless otherwise specified
Although every effort has been made to render the case
drawings at actual size, variations in the printing process
may cause some distortion. Please refer to the numerical
dimensions for accuracy.
7
SMFL SERIES
65 WATT
DC/DC CONVERTERS
TABLE 1: ELEMENT EVALUATION
ELEMENT EVALUATION
SPACE
PROTOTYPE
(O)
CLASS
H
CLASS
K
TEST PERFORMED
(COMPONENT LEVEL)
M/S
yes
no
no
no
no
no
no
no
no
no
no
no
no
no
P
M/S
P
M/S
P
Element Electrical
no yes yes yes
no yes yes yes
yes
yes
no
Element Visual
Internal Visual
no yes
no yes
no yes
no yes
no yes
no yes
no yes
no yes
no no
no no
Temperature Cycling
Constant Acceleration
Interim Electrical
Burn-in
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
yes
yes
no
no
Post Burn-in Electrical
Steady State Life
Voltage Conditioning /Aging
Visual Inspection
Final Electrical
no
no
yes
yes
yes
yes
no
no yes yes yes
no yes yes yes
Wire Bond Evaluation
SEM
no
no
no yes
SLAM™/C-SAM:
Input capacitors only
(Add’l test, not req. by H or K)
no
no
no
yes no
yes
Notes
M/S Active components (Microcircuit and Semiconductor Die)
Passive components
P
Definitions
Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534
SEM: Scanning Electron Microscopy
SLAM™: Scanning Laser Acoustic Microscopy
C-SAM: C - Mode Scanning Acoustic Microscopy
8
SMFL SERIES
65 WATT
DC/DC CONVERTERS
TABLE 2: PRODUCT ENVIRONMENTAL SCREENING
ENVIRONMENTAL SCREENING
SPACE
PROTOTYPE
(O)
TEST PERFORMED
(END ITEM LEVEL)
CLASS
H
CLASS
K
Non-destruct bond pull
Method 2023
no
yes
yes
yes
no
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
Pre-cap inspection
Method 2017, 2032
Temperature cycle
Method 1010, Cond. C
Constant acceleration
Method 2001, 3000 g
PIND Test
Method 2020, Cond. B
Radiography
Method 2012
Pre burn-in test
no
yes
no
yes
yes
yes
Burn-in, Method 1015, 125°C
96 hours
160 hours
2 x 160 hour (includes mid BI test)
Final electrical test
MIL-PRF-38534, Group A
Hermeticity test
yes
no
no
no
yes
no
no
no
yes
yes
yes
yes
Fine Leak,
Method 1014, Cond. A
Gross Leak,
Method 1014, Cond. C
Final visual inspection
Method 2009
yes
yes
yes
yes
yes
yes
yes
yes
yes
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
9
SMFL SERIES
65 WATT
DC/DC CONVERTERS
TABLE 3: RADIATION HARDNESS LEVELS
PRODUCT LEVEL AVAILABILITY
ENVIRONMENTAL SCREENING LEVELS
SPACE
PROTOTYPE
(O)
CLASS
H
CLASS
K
RADIATION HARDNESS LEVELS
O: Standard, no radiation guarantee
For system evaluation, electrically
and mechanically comparable to
H and K level.
R: Radiation hardened – Tested lots
Up to 100 k Rads (Si) total dose
SEU guarantee up to 40 MeV
Not
available
OO
HO
HR
Not
available
KR
R is referenced to MIL-PRF-38534, appendix G, Radiation Hardness Assurance
(RHA) levels.
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SMFL Rev E This revision supercedes all previous releases. All technical information is
believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint
reserves the right to make changes in products or specifications without notice. SMFL Series
is a trademark of Interpoint. Copyright © 1999-2003 Interpoint. All rights reserved.
10
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