MAX-277 [MDE]
HIGH CURRENT TRANSIENT VOLTAGE SUPPRESSOR; 大电流瞬态电压抑制器
| 型号： | MAX-277 |
| 厂家： | 
MDE SEMICONDUCTOR, INC. |
| 描述： | HIGH CURRENT TRANSIENT VOLTAGE SUPPRESSOR |
| 文件： | 总2页 (文件大小：109K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MDE Semiconductor, Inc.
78-150 Calle Tampico, Unit 210, La Quinta, CA., USA 92253 Tel : 760-564-8656 • Fax : 760-564-2414
1-800-831-4881 Email: sales@mdesemiconductor.com Web: www.mdesemiconductor.com
MAXPak ™ Series
MAX-277
HIGH CURRENT TRANSIENT VOLTAGE SUPPRESSOR
FEATURES
• UL 1449 Recognition
• 6.5KA Surge Capability @ 8 x 20 µsec waveform
(per IEC- 61000-4-5)
• Peak Power Dissipation 288KW
• Bi-directional
MAX-277
• Excellent clamping capability
• Repetition rate (duty cycle): 0.05%
• Sharp breakdown voltage
• Low incremental surge resistance
• Fast response time: typically less than 1.0 µs
from 0 Volts to BV
• Operation temperature: -40°C to +125°C
• Epoxy encapsulated package has Underwriters
Laboratory Flammability Classification 94 V-0
MECHANICAL DATA
Terminal: Ag Plated Axial leads, solderable per
MIL-STD-750. Method 2026
Mounting Position: Any
Weight: 0.328 ± 0.033 ounces (9.300 ± 0.930 g)
MAXIMUM RATINGS AND CHARACTERISTICS
Ratings at 25º C ambient temperature unless otherwise specified.
RATING
SYMBOL
Vrwm
Vbr
VALUE
241
UNITS
Volt
Volt
Volt
A
Reversed Standoff Voltage
Breakdown Voltage @ IT=1.0mA
Clamping Voltage @ 434.3A / 10x1000 µsec waveform
Reverse Leakage @ 241V
277 ± 5%
368.4 max
20 µ max
Vc
IR
07/28/09
MDE Semiconductor, Inc.
78-150 Calle Tampico, Unit 210, La Quinta, CA., USA 92253 Tel : 760-564-8656 • Fax : 760-564-2414
1-800-831-4881 Email: sales@mdesemiconductor.com Web: www.mdesemiconductor.com
MAXPak™ 277 Series
Rating and Characteristic Curves
10000
Non-repetitive pulse
waveform shown in
= 25ºC
Fig. 3TA
1000
100
10
1
0.1
1
10
100
1,000
10,000
100,000
µsec
1
td PULSE WIDTH
FIG. 1 PEAK PULSE POWER RATING
Fig.2 - Pulse Derating Curve
100
75
50
25
0
0
25
50
75
100
125
150
175
200
TA - Ambient Temperature (°C)
150
100
TJ = 25°C
Pulse Width(td)is defined
as the point where the
peak current decays to
50% of IPPM
tr = 10μsec.
Peak Value
IPPM
Half Value- IPPM
2
10/1000μsec.Waveform
as defined by R.E.A.
50
0
td
3.0
1.0
2.0
4.0
t - Time(ms)
0
Fig.3 - Pulse Waveform
7/28/2009
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