S ecifications are s bject to change itho t notice
115
4B04B - Thick Film Surge Resistor Networks
4B04B-501 (Pair of Matched Resistors)
Product Characteristics
Resistance Values ......................................................20
- 100
Resistance Tolerance ............................................................±1%
TCR.............................................................................100ppm/°C
Ratio Tolerance..............................................>34
............±0.5%
..............................................<34
...............±1%
Power Dissipation (per resistor) @ 25C ..................................2W
Temperature Range ............................................-55C to +125C
Environmental Characteristics
TESTS PER MIL-STD-202 ..............................................
R MAX.
Resistance to Solvents .........................No Marking Deterioration
Resistance to Solder Heat....................................±0.5% or 0.5
,
whichever is greater
Solderability ........................................................>95% Coverage
Insulation Resistance ..........................10 M
min. (isolated pins)
Bias Humidity Test ..........................................50V/85% RH/85°C
Functional Characteristics
Lightning Surge Test
Bellcore Spec GR-1089
10 x 1000
sec .................1 kV
2 x 10
sec ....................2.5 kV
ITU-T K.20
10 x 700
sec ...................2 kV
Power Cross Test .............................................Per Bellcore spec.
(Vrms applied vary with resistance values)
Physical Characteristics
Body Style ..........................................................Open Frame SIP
Body Material...........................................................96% Alumina
Lead Frame Material..................................Copper, solder coated
Standard Parts Available Off the Shelf ........................50
, 100
4B04B-502 (Resistor with Thermal Fuse)
Product Characteristics
Resistance Values .....................................................5.6
- 100
Resistance Tolerance......................1% (optional), 5% (standard)
TCR ...................................................................800 ±200ppm/°C
Power Dissipation @ 25C.......................................................2W
Temperature Range............................................-55C to +125C
Functional Characteristics
Lightning Surge Test
Bellcore Spec GR-1089
10 x 1000
sec ..................1 kV
2 x 10
sec .....................2.5 kV
Power Cross Test ............................................Per Bellcore spec.
(Vrms applied vary with resistance values)
Physical Characteristics
Body Style ..........................................................Open Frame SIP
Body Material ..........................................................96% Alumina
Lead Frame Material .................................Copper, solder coated
Standard Parts Available Off the Shelf ................5.6
, 10, 34
17
13
19
50.80
(2.000)
15.24
(0.600)
15.24
(0.600)
15.24
(0.600)
15.24
(0.600)
TYP.
0.36 Max.
(.014 Max.)
2.29 Max.
(.090 Max.)
12.70
(0.500)
MAX.
How To Order
4B 04 B - 50X - XXX
Model
(4B = Open Frame)
Number of Pins
Physical Configuration
Electrical Configuration
501 = Pair of Matched Resistors
Resistance Code
First 2 digits are significant
Third digit represents the
number of zeros to follow
How To Order
4B 04 B - 50X - XXX J
Model
(4B = Open Frame)
Number of Pins
Physical Configuration
Electrical Configuration
502 = Resistor with Thermal Fuse
Resistance Code
First 2 digits are significant
Third digit represents the
number of zeros to follow
5% tolerance
Features
s
Over-voltage/lightning protection to
Bellcore GR-1089 & ITU-T K.20
s
Standard “off the shelf” designs
s
Typical application is secondary
protection on telecom line cards
s
Custom versions available, including
SMD solutions and fuse technology
(contact factory)
User must short pins 3 & 4 on the circuit board
Governing dimensions are in mm.
Dimensions in parenthesis are inches
and are approximate.
12
3
4
25.40
±.50
(1.000
±.020)
2.54
±.127
(.100
±.005)
17.78
±.254
(0.700
±.010)
TYP.
MAX.
0.36 Max.
(.014 Max.)
1.40 Max.
(.055 Max.)
3.05 Max.
(.120 Max.)
11.30
(0.445)
2.54
±.127
(.100
±.005)
Functional Schematic