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PDFs and Datasheets TA Series Datasheet

TA Series Datasheet

Power Chip
Thick Film on Alumina Substrate 

TA series product image

 

Features

  • High-Temp Terminal Construction
  • Wide Resistance Range
  • Low Inductance (50nH-100nH)
  • High Power Density
  • Easy to install. PC-mountable

 

Ohmite’s original Power Chip resistors feature our thick film on alumina substrate technology. These planar packages yield space saving, 10W/in2 power densities that require over 50% less board space than other radial packages. Convection cooling is maximized by the planar package configuration which dissipates heat well above board level. Ohmite’s power chip resistors have a 125% higher operating temperature range than competitive product of similar design. High temperature solder and in-process plating keep terminations secure under self-heating effects by preventing re-flow from full power operation. Flexible packaging schemes make these resistors ideal for power supplies, audio amplifiers, video flyback, and other power control applications.

Series Specifications

Wattage: 3.0

Wattage: 3.0

Wattage: 5.0

Wattage: 5.0

Wattage: 5.0

Wattage: 5.0

Wattage: 7.5

Wattage: 7.5

Wattage: 10.0

Wattage: 10.0

Wattage: 25.0

Wattage: 50.0

Wattage: 100.0

Characteristics

Alumina

Thick Film

Glass

Solder Plated Phosphor Bronze

1 ohm: 450 ppm/°C, 1 to 100Ω:100 ppm/°C, 101Ω and up: 50 ppm/°C

±1%, ±5% and ±10%

Based on 25°C free air

0.25 ohm to 10M ohm. Consult fac-tory for other values

350 VAC, 500 VDC through glass, 1000 VAC, 1500 VDC through sub-strate, not to exceed power rating

Five times rated power, as long as the one second average dissipation does not exceed the wattage rating. ∆R: ±2%, 2000 hours

100% @ 25°C to 0% @ 180°C ambi-ent.

1.0pf (100 MHz)

5000V thru back side

-55°C to +180°C

20 x rated current up to 8 ms (ΔR ± 0.5%)

Test Condition MILR83401:

40°C, rated power, 90 min ON 30 min OFF, 1000 hrs.

Specification:

ΔR ±( 1.0% + 0.05Ω)

Test Condition MILR83401:

60°C, 90 - 95% RH, rated power, 90 min ON 30 min OFF, 1000 hrs

Specification:

ΔR±( 1.0% + 0.05Ω)

Test Condition MILR83401:

Room temp > -55°C 30 min > RT 10 min ± 120°C 30 min > RT10 min 5 cycles

Specification:

ΔR ±( 0.25% + 0.05Ω)

Test Condition MILR83401:

UL94V-O rated (not recognized)

Specification:

-

Test Condition MILR83401:

350°C Solderpot, 3 secs.

Specification:

ΔR±( 0.25% + 0.05Ω)

Test Condition MILR83401:

DC 100V, 1 min

Specification:

Over 1000M ohm

Dimensions

(±.020 in. / ±.508mm) 

 

PA 3, 5, 7.5 & 10 watt

Res Ta Dimensions 1

 

PW 10, 25, 50 & 100 wat

Res Ta Dimensions 2

 

PY Mount

Res Ta Dimensions 3

Wattage: 3.0

P: 0.200 / 5.08

Length L: 0.50 / 12.700

Height H: 0.60 / 15.24

Wattage: 3.0

P: 0.300 / 7.62

Length L: 0.50 / 12.70

Height H: 0.60 / 15.24

Wattage: 5.0

P: 0.200 / 5.08

Length L: 0.50 / 12.70

Height H: 1.00 / 25.40

Wattage: 5.0

P: 0.300 / 7.62

Length L: 0.50 / 12.70

Height H: 1.00 / 25.40

Wattage: 5.0

P: 0.600 / 15.24

Length L: 1.00 / 25.40

Height H: 0.50 / 12.70

Wattage: 5.0

P: 0.800 / 20.32

Length L: 1.00 / 25.40

Height H: 0.50 / 12.70

Wattage: 7.5

P: 0.200 / 5.08

Length L: 0.75 / 19.05

Height H: 1.00 / 25.40

Wattage: 7.5

P: 0.300 / 7.62

Length L: 0.75 / 19.05

Height H: 1.00 / 25.40

Wattage: 10.0

P: 0.300 / 7.62

Length L: 1.00 / 25.40

Height H: 1.00 / 25.40

Wattage: 10.0

P: 0.300 / 7.62

Length L: 1.085 / 27.56

Height H: 1.00 / 25.40

Wattage: 10.0

P: 0.800 / 20.32

Length L: 1.00 / 25.40

Height H: 1.00 / 25.40

Wattage: 10.0

P: 0.800 / 20.32

Length L: 1.085 / 27.56

Height H: 1.00 / 25.40

Wattage: 25.0

P: 1.90 / 48.3

Length L: 2.220 / 56.39

Height H: 1.170 / 29.70

Wattage: 25.0

P: 1.90 / 48.3

Length L: 2.220 / 56.39

Height H: 1.170 / 29.70

Wattage: 50.0

P: 1.90 / 48.3

Length L: 2.220 / 56.39

Height H: 2.270 / 57.60

Wattage: 50.0

P: 1.90 / 48.3

Length L: 2.220 / 56.39

Height H: 2.270 / 57.60

Wattage: 100.0

P: 4.10 / 104.1

Length L: 4.420 / 112.27

Height H: 2.270 / 57.60

Wattage: 100.0

P: 4.10 / 104.1

Length L: 4.420 / 112.27

Height H: 2.270 / 57.60

 

*10-100 watts available in PW,PA, and PY packages.

Ordering Information

Res Ta Order Info

 

Standard part numbers for TA series 

Part number chart.

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