Specifications are subject to change without notice.
4A12P-506-500 - Surge Line Protection Module
Matched Pair of Resistors plus Thermal Fuse
Electrical Characteristics
Resistance Values (R1 = R2) ........................................................50
Resistance Tolerance ..................................................................1 %
TCR ..................................................................................100 ppm/C
Ratio Tolerance ........................................................................0.5 %
Power Dissipation (per resistor) @ 25 % .......................................2 W
Temperature Range...................................................-40 C to +85 C
Physical Characteristics
Body Style .............................................Dual in line SMD - twin pack
Substrate Material ........................................................96 % Alumina
Lead Frame Material........................................Copper, solder coated
Flammability .....................................................Conforms to UL94V-0
Processability................Unit is only suitable for no-clean processing
Convection Reflow...................Unit will withstand 260 , 20 seconds
Packaging ..................16 " diameter reels, 44mm tape, 250 pcs./reel
Functional Characteristics
Lightning Surge Test ...........................................10 x 700 Sec, 1 KV
Power Induction ...................................................................300 Vrms
Power Contact .....................................................................220 Vrms
Features
I
Overvoltage/lightning protection to ITU-T K.20
I
Standard "off-the-shelf" design
I
Typical application is secondary protection on telecom line cards
4
2
1
8
10 11
32.81
(1.292)
3.72
(.146)
MAX.
10.16
.13
(.400
.005)
5.08
.13
(.200
.005)
2.54
.13
(.100
.005)
12.70
(.500)
14.59
(.575)
Product Dimensions
Electrical Schematic
DIMENSIONS:
MILLIMETERS
(INCHES)
COPYRIGHT 2002, BOURNS, INC. LITHO IN U.S.A. 09/02 e/L0211
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bourns.com
09/02
How To Order
4A 12 P - 506 - 500
Model
(4A = Surface Mount)
Number of Pins
Physical Configuration
Electrical Configuration
506 = Matched Pair of Resistors plus Thermal Fuse
Resistance Code
500 = 50
5.28
.013
(0.208
.005)
7.11
.25
(0.280
.010)
2.54
.25
(.100
.010)
13.40
.25
(.527
.010)
15
13
12
R3
8
10
11
R2
22
21
19
1
2
4
R1
R4
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