5-3
5
Model BHP
ELECTRICAL
Resistance Range, Ohms 1 to 200K
Resistance Tolerances ±5%
Optional: ±1%, ±2%
Operating Temperature Range -55°C to +155°C
Temperature Coefficient of Resistance, Maximum ±100ppm/°C
Power Ratings, Watts 20 Watts (With 5.8°C/W External Heat Sink)
2 Watts (In Air)
Operating Voltage, Maximum 250 Vdc
Peak Current 15 x rated current up to 8 ms (∆R ±0.5%)
Dielectric Strength 750 V
MODEL BHP
Noninductive Planar
Low Cost, 20 Watt
TO 220 Package
Thick Film Resistor
Specifications subject to change without notice.
APPLICATIONS
• Switching power supplies
• Snubber circuits
• Inrush current suppression
• Pre-loads
PRELIMINARY DATA
FEATURES AND BENEFITS
• High power density
• Power is dissipated above circuit board
• Low temperature solder
• Nonflammable
• Non-inductive planar
5-4 Model BHP
MECHANICAL
Lead Material Solder Tinned Copper Alloy
Substrate Material 96% Alumina
Resistor Material Ruthenium Oxide
Thermal Shock ∆R 0.50%
Terminal Strength ∆R 0.25%
Short Time Overload 2 x rated power, 5 seconds, ∆R 0.50%
Moisture Resistance ∆R 0.50%
Mechanical Shock 30G's, ∆R 0.25%
Vibration 10G's, 10 to 500 Hz ∆R 0.25%
Low Temperature Storage ∆R 0.25%
High Temperature Exposure ∆R 0.25%
Load Life, 1,000 Hours ∆R 2.00%
Resistance to Solder Heat ∆R 0.25%
Dielectric Withstanding Voltage, Minimum 1,000 Vdc
Marking Permanency MIL-STD-202, Method 215
Lead Solderability MIL-STD-202, Method 208
Flammability UL 94V-0 Rated
Storage -55°C to +155°C
ENVIRONMENTAL (PER MIL-R-83401)
POWER DERATING CURVE
Percent of
Rated Power
100
80
60
40
20
0
15525
Degrees C
STANDARD RESISTANCE VALUES (OHMS)
Value 1 2 5 10 20 50 100 200 500 1K 2K 5K 10K
Code 1R0 2R0 5R0 100 200 500 101 201 501 102 202 502 103
Standard: 50 per tray
PACKAGING
5-5
5
Model BHP
OUTLINE DIMENSIONS (Inch/mm)
.020±.004
0.51±0.10
.370
9.40 Min.
.010±.003
0.25±0.08
.200
5.08 .140
3.56
Heat Sink
.400±.015
10.16±0.38
.100
2.54
.795±.020
20.19±0.51
.725±.015
18.42±0.38
.610±.015
15.49±0.38
.200±.010
5.08±0.25
BHP 20
XXX X
XXXX
BI
Dia. Hole
Max.
.064±.004
1.63±0.10
ORDERING INFORMATION
BHP 20 103 J
Model Tolerance Code:
F
G
J
Power Rating
Resistance Code:
1 Ohm
2 Ohms
5 Ohms
≥10 Ohm: First 2 digits are significant.
Last digit denotes number of trailing zeros.
= 1RO
= 2RO
= 5RO
=
=
=
1% Tol.
2% Tol.
5% Tol.
