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PDFs and Datasheets Teh100 Datasheet

TEH100 Series Datasheet

100 Watt Thick Film Power Resistors for High Frequency and Pulse Loading Applications

Res Teh100 product image

Features

  • 100 Watt power rating at 25°C case temperature
  • Non-inductive performance
  • Low thermal resistance
  • RoHS compliant design
  • TO-247 package configuration
  • Single screw mounting simplifies attach-ment to the heat sink
  • A totally molded housing for enviromental protection
  • Non-Inductive design
  • Resistor package totally insulated from heat sink

 

Ohmite offers the totally encapsulated and insulated TO-247 package for low ohmic value and non-inductive design for high-frequency and pulsing applications. Ideal use is for power supplies. This series is rated at 100 Watts mounted to a heat sink.

Characteristics

thick film on alumina

high temperature plastic

Tinned Copper

0.9 Nm using an M3 screw and a compression washer

linear, 100% at 25°C to 0% at 175°C

0.05Ω to 1MΩ, other values on reques

±1%, ±2%, ±5%, ±10%

350V

> 10Ω: 50ppm/°C, ref. to 25°C3 to 10Ω: 100ppm/°C1 to 2.99Ω: 250ppm/°C < 1Ω: 500-1000+ppm/°C (Contact factory for exact values below 1Ω)

10GΩ min.

1,800 VAC

Conditions Of Test:

MIL-R-39009D 4.8.13 , 2,000 hours at rated power

Performance:

∆R ≤ ±(1.0% + 0.0005Ω)

Conditions Of Test:

-10°C - +65°C, RH>90%, cycle 240 h

Performance:

∆R ≤ ±(0.50% + 0.0005Ω)

Conditions Of Test:

1.5 times rated power and V(DC) ≤1.5Vmax for 5 seconds

Performance:

∆R ≤ ± (0.50% + 0.0005Ω)

Conditions Of Test:

GJB360A-96 method 107, Cond. F

Performance:

∆R ≤ ±(0.50% + 0.0005Ω)

Conditions Of Test:

GJB360A-96 method 301, (1,800V AC, 60s)

Performance:

∆R ≤ ± (0.15% + 0.0005Ω)

Conditions Of Test:

GJB360A-96 method 211, Cond. A (Pull Test) 2.4N

Performance:

∆R ≤ ±(0.20% + 0.0005Ω)

Conditions Of Test:

GJB360A-96 method 204, Cond. D

Performance:

∆R ≤ ±(0.40% + 0.0005Ω)

Derating

Res Teh 100 Graph

 

Derating (thermal resistance): 0.666W/°K (1.5K/W). Without a heatsink, when in free air at 25°C, the TEH100 is rated for 3.5W. Derating for temp. above 25°C is 0.0234W/°K. Graphed value is only valid when using a thermal conduction to the heatsink Rthcs<0.025°K/W. This value can be reached by using thermal transfer compound with a heat conductivity of 1W/mK. The flatness of the cooling plate must be better than 0.05mm
overall. The roughness of the surface should not exceed 6.4µm. The case temperature is to be used for the definitiion of the applied power limit. The case temperature measurement must be made with a thermocouple contacting the center of the component mounted on the designed heat sink. Thermal grease should be applied properly

 

THIS PRODUCT IS DESIGNED FOR USE WITH PROPER HEATSINKING.

Maximum base plate temperature of the resistor must be monitored and kept within specified limits to establish the power rating. Best technique is to attach a thermocouple to the side of the base plate of the resistor. Temperature of plastic housing or heat sink cannot be used to establish rating of the resistor.

Dimensions

(in./mm) 

Res Teh100 Dimensions

Ordering Information

Res Teh100 Order Info

 

Standard part numbers 

5% tolerance Ohms: 0.05

5% tolerance Ohms: 0.075

5% tolerance Ohms: 0.1

5% tolerance Ohms: 0.2

5% tolerance Ohms: 0.5

5% tolerance Ohms: 1

5% tolerance Ohms: 2

5% tolerance Ohms: 2.5

5% tolerance Ohms: 3

5% tolerance Ohms: 5

5% tolerance Ohms: 7.5

5% tolerance Ohms: 10

5% tolerance Ohms: 15

5% tolerance Ohms: 20

5% tolerance Ohms: 25

5% tolerance Ohms: 50

5% tolerance Ohms: 100

5% tolerance Ohms: 270

5% tolerance Ohms: 470

5% tolerance Ohms: 750

5% tolerance Ohms: 1K

5% tolerance Ohms: 5K

5% tolerance Ohms: 7.5K

1% tolerance Ohms: 1

1% tolerance Ohms: 2

1% tolerance Ohms: 2.5

1% tolerance Ohms: 3

1% tolerance Ohms: 5

1% tolerance Ohms: 7.5

1% tolerance Ohms: 10

1% tolerance Ohms: 15

1% tolerance Ohms: 20

1% tolerance Ohms: 25

1% tolerance Ohms: 50

1% tolerance Ohms: 100

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