D22B020AA [BOURNS]
Line Feed Resistors w/Resettable Polymer PTC & Overvoltage Protectors; 线路馈电电阻W /复式高分子PTC和过电压保护器
| 型号： | D22B020AA |
| 厂家： | 
BOURNS ELECTRONIC SOLUTIONS |
| 描述： | Line Feed Resistors w/Resettable Polymer PTC & Overvoltage Protectors |
| 文件： | 总2页 (文件大小：135K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Features
Applications
■ Thick film technology
■ Fail safe
■ Analog Line Cards
■ CPE (Customer Premises Equipment)
■ DDS (Digital Data Systems)
■ DLC (Digital Loop Carriers)
■ T1/T3 Transmission Lines
■ ISDN
■ Protection to ITU-T K.20
D22BLine Feed Resistors w/Resettable Polymer PTC & Overvoltage Protectors
Circuit Schematic
Product Characteristics
Resistor Tolerance................................................................±± ꢀ
Polyswitches Matched to...............................................2.0 ohms
Rating.........................................................................250 V, ±.0 A
Trip Time @ ± A............................................±.± seconds @ 20 °C
Trip Current .........................................................±25 mA @ 25 °C
OVERVOLTAGE
PROTECTOR
R1
R2
R3
R4
Environmental Characteristics
TESTS PER MIL-STD-202
1
9
5
7
8
11
15
Humidity ..........................................................................±03B
Solderability.....................................................................208D
Thermal Shock ................................................................±07B
Resistance to Solvents ......................................................2±5
Resistance to Solder Heat ..............................................2±0D
Flammability...................................................................UL 94V-0
IEC 695-2-2
Product Dimensions
MAX. SEATED
HEIGHT
12.19
(0.480)
38.35
(1.510)
MAX.
Functional Characteristics
ITU-T K.20
Lightning Surge................................................................± KV
Power Induction........................................................600 Vrms
Power Contact..........................................................230 Vrms
UL 497A
0.84
(.033)
Physical Characteristics
REF.
Body Style ..........................................................Open Frame SIP
Body Material...........................................................96ꢀ Alumina
Lead Frame Material..................................Copper, solder coated
Standard Parts Available Off the Shelf........20, 30, 50, ±00 ohms
1.27
(.050)
5.08
(.200)
3.175 + 0.64/-0.13
(.125 + .025/-.005)
10.16
(.400)
TYP.
0.51 0.25
(.020 x .010)
THICK
2 PLCS.
3.81
(.150)
0.81
(.032)
MAX. THICKNESS
DIA. HOLE
How To Order
D22B 100AA
MM
(INCHES)
DIMENSIONS:
Model
(D22B = LFR w/Resettable Polymer PTC & Overvoltage Protectors)
Resistor Tolerance
• 020AA = 20 ohms
• 030AA = 30 ohms
• 050AA = 50 ohms
• ±00AA = ±00 ohms
Custom values available; contact factory.
Circuit Protection Division
Asia-Pacific:
Tel: +886-2 2562-4±±7
Fax: +886-2 2562-4±±6
Europe:
Tel: +4±-4± 768 5555
Fax: +4±-4± 768 55±0
The Americas:
Tel: +±-95± 78±-5500
Fax: +±-95± 78±-5700
www.bourns.com
Specifications are subject to change without notice.
Customers should verify device performance in their specific applications.
D22BLine Feed Resistors w/Resettable Polymer PTC & Overvoltage Protectors
Trip Characteristics
Time to Trip
Hold Current vs Temperature
10
1
200
180
160
140
120
100
80
0.1
60
40
0.01
0
0.5
1
1.5
2
2.5
3
3.5
-40
-20
0
20
40
60
80
100
Current (Amps)
Temperature (°C)
REV. A 06/05
Specifications are subject to change without notice.
Customers should verify device performance in their specific applications.
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