RES-TBH25 Datasheet, PDF (1/2 Pages) Ohmite Mfg. Co. – Low Thermal Resistance

TBH Series
25 Watt TO220 Package Thick Film Power
Ohmite’s TBH25 TO220 style
resistors are designed for a
variety of uses that require
intermediate heatsinkable
power at an economical price.
Engineered for industrial
applications, these resistors
deliver reliable performance
to traditional high-quality
Ohmite standards.
F e at u r e s
• 25 Watts, @ 25°C case tem-
perature
• Non-Inductive Performance
• Low Thermal Resistance
• Anti-static tube packaging
available
• Economically priced
• Resistance element is elec-
trically insulated from metal
heat sink mounting tab
A P P L ICATI O N S
• Power Supplies
• Pre-load/Damping
• Industrial Controls • Snubber/Bleeder
• Automotive Steering • Current Sensing
characteristics
Resistor Thick film element above 1Ω, Ni-Cu metal ele-
ment below 1Ω
Case High Temperature Plastic
Terminals Solder coated phospher bronze
Derating 100% @ 25°C to 0% @ 150°C curve refer-
enced to case temperature
Dielectric Strength 1000 VDC
Max. Mounting 0.9Nm
Torque
Operating -55°C to +150°C
Temperature Range
Temperature 0.1-10Ω @ ±200ppm
Coefficient 11Ω-10KΩ @ ±50ppm
Thermal Resistance 5°C/W
Tolerance 5%
Power
25 Watts. Rating based on 25°C case tem-
perature. The case temperature is to be used
for the purposes of establishing the applied
power limit. The case temperature must be
made with thermocouple contacting the cen-
ter of the component’s mounting tab mounted
on designated heat sink.
Resistance Range 0.1Ω - 10KΩ. Standard values listed at left,
others available upon special request.
Max. Operating 350V
Voltage
Test Condition
Result
Load Life (1000hrs @ rated power)
max. ∆R ±1%
Moisture (MIL-STD-202, method 106)
Resistance
max. ∆R ±0.5%
Short Time (2x rated power, not to exceed max. ∆R ±0.3%
Overload 1.5x max. operating voltage)
Solderability (MIL-STD-202, method 208)
Thermal Shock (MIL-STD-202, method 107,
cond. F)
max. ∆R ±0.3%
Terminal (MIL-STD-202, method 211,
Strength cond. A (pull test) 2.4N)
max. ∆R ±0.2%
Vibration (MIL-STD-202, method 204,
cond. D)
max. ∆R ±0.2%
146
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax [phone] • www.ohmite.com • [e-mail]
(continued)