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PDF D22B Data sheet ( Hoja de datos )
| Número de pieza | D22B | |
| Descripción | Line Feed Resistors w/Resettable Polymer PTC & Overvoltage Protectors | |
| Fabricantes | Bourns Electronic Solutions | |
| Logotipo |  |
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Features
■ Thick film technology
■ Fail safe
■ Protection to ITU-T K.20
Applications
■ Analog Line Cards
■ CPE (Customer Premises Equipment)
■ DDS (Digital Data Systems)
■ DLC (Digital Loop Carriers)
■ T1/T3 Transmission Lines
■ ISDN
D22B Line Feed Resistors w/Resettable Polymer PTC & Overvoltage Protectors
Product Characteristics
Resistor Tolerance ................................................................±1 %
Polyswitches Matched to ...............................................2.0 ohms
Rating .........................................................................250 V, 1.0 A
Trip Time @ 1 A ............................................1.1 seconds @ 20 °C
Trip Current .........................................................125 mA @ 25 °C
Environmental Characteristics
TESTS PER MIL-STD-202
Humidity ..........................................................................103B
Solderability.....................................................................208D
Thermal Shock ................................................................107B
Resistance to Solvents ......................................................215
Resistance to Solder Heat ..............................................210D
Flammability ...................................................................UL 94V-0
IEC 695-2-2
Functional Characteristics
ITU-T K.20
Lightning Surge ................................................................1 KV
Power Induction........................................................600 Vrms
Power Contact..........................................................230 Vrms
UL 497A
Physical Characteristics
Body Style ..........................................................Open Frame SIP
Body Material...........................................................96% Alumina
Lead Frame Material..................................Copper, solder coated
Standard Parts Available Off the Shelf ........20, 30, 50, 100 ohms
How To Order
D22B 100AA
Model
(D22B = LFR w/Resettable Polymer PTC & Overvoltage Protectors)
Resistor Tolerance
• 020AA = 20 ohms
• 030AA = 30 ohms
• 050AA = 50 ohms
• 100AA = 100 ohms
Custom values available; contact factory.
Circuit Schematic
R1
R3
OVERVOLTAGE
PROTECTOR
R2
R4
1 5 7 8 9 11
Product Dimensions
38.35
(1.510)
MAX.
15
MAX. SEATED
HEIGHT
12.19
(0.480)
1.27
(.050)
10.16
(.400)
TYP.
2 PLCS.
5.08
(.200)
3.81
(.150)
MAX.
THICKNESS
DIMENSIONS:
MM
(INCHES)
0.84
(.033)
REF.
3.175 + 0.64/-0.13
(.125 + .025/-.005)
0.51
(.020
±0.25
x .010)
THICK
0.81
(.032)
DIA.
HOLE
Specifications are subject to change without notice.
Customers should verify device performance in their specific applications.
Circuit Protection Division
Asia-Pacific:
Tel: +886-2 2562-4117
Fax: +886-2 2562-4116
Europe:
Tel: +41-41 768 5555
Fax: +41-41 768 5510
The Americas:
Tel: +1-951 781-5500
Fax: +1-951 781-5700
www.bourns.com
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet D22B.PDF ] | |
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