TA810PW33R0JE - Ohmite Manufacturing Co.

54 Ohmite Mfg. Co. 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com

Standard part numberS for ta SerieS

orderinG information

TA305PA

Ohmic value

TA203PA

TA303PA

TA205PA

Part Number

TA207PA

TA310PA

TA025PW

TA050PW

TA100PW

TA810PW

Part No.

Prefix 

Suffix



TA305PA

Ohmic value

TA203PA

TA303PA

TA205PA

Part Number

TA207PA

TA310PA

TA025PW

TA050PW

TA100PW

TA810PW

Part No.

Prefix 

Suffix



TA305PA

Ohmic value

TA203PA

TA303PA

TA205PA

Part Number

TA207PA

TA310PA

TA025PW

TA050PW

TA100PW

TA810PW

Part No.

Prefix 

Suffix



TA Series

Power Chip®

Thick Film on Alumina Substrate

Dimensions (±.020 in. / ±.508mm)

Series Wattage P Length L Height H

TA203 3.0 0.200 / 5.08 0.50 / 12.70 0.60 / 15.24

TA303 3.0 0.300 / 7.62 0.50 / 12.70 0.60 / 15.24

TA205 5.0 0.200 / 5.08 0.50 / 12.70 1.00 / 25.40

TA305 5.0 0.300 / 7.62 0.50 / 12.70 1.00 / 25.40

TA605 5.0 0.600 / 15.24 1.00 / 25.40 0.50 / 12.70

TA805 5.0 0.800 / 20.32 1.00 / 25.40 0.50 / 12.70

TA207 7.5 0.200 / 5.08 0.75 / 19.05 1.00 / 25.40

TA307 7.5 0.300 / 7.62 0.75 / 19.05 1.00 / 25.40

TA310 10.0 0.300 / 7.62 1.00 / 25.40 1.00 / 25.40

TA810 10.0 0.800 / 20.32 1.00 / 25.40 1.00 / 25.40

TA025 25.0 1.90 / 48.3 2.220 / 56.39 1.170 / 29.70

TA050 50.0 1.90 / 48.3 2.220 / 56.39 2.270 / 57.60

TA100 100.0 4.10 / 104.1 4.420 / 112.27 2.270 / 57.60

0.020" / 0.51 mm typ.

0.150" / 3.8 mm ref.

0.200" / 5.08 mm

0.050" / 1.27 mm dia. finished pins

0.070" /

1.78 mm

0.040" / 1.02 mm

0.240" /

6.10 mm

0.300" /

7.62 mm

0.040" /

1.02 mm typ.

Solder-coated

phosphor bronze

3, 5, 7.5

& 10 watt

10, 25, 50

& 100 watt

0.07"/1.78mm

0.17"/4.32mm

0.10"/2.54mm

0.02" x 0.015" Pins

typical

PC board

Ohmite’s original Power Chip

resistors feature our thick film

on alumina substrate technol-

ogy. These planar packages

yield space saving, 10W/in2

power densities that require

over 50% less board space

than other radial packages.

Convection cooling is maxi-

mized by the planar package

configuration which dissipates

heat well above board level.

Ohmite’s power chip resis-

tors have a 125% higher oper-

ating temperature range than

competitive product of similar

design. High temperature

solder and in-process plat-

ing 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 ampli-

fiers, video fly-back, and other

power control applications.

FEATURES

• High-Temp Terminal Construction

• Wide Resistance Range

• Low Inductance (50nH-100nH)

• High Power Density

• Easy to install. PC-mountable

SPECIFICATIONS

Material

Substrate: Alumina

Resistor: Thick Film

Coating: Glass

Terminals: Solder Plated

Phosphor Bronze

Thermal Conductivity:

20 Watts/Meter/°C

Temperature Coefficient:

1 ohm 450 ppm/°C

1 to 100Ω 100 ppm/°C

101Ω and up 50 ppm/°C

Electrical

Tolerance: ±1%, ±5% and ±10%

Power Rating: Based on 25°C

free air

Resistance Range: 0.25 ohm to

10M ohm. Consult factory for

other values

Maximum Operating Voltage:

350 VAC, 500 VDC through

glass, 1000 VAC, 1500 VDC

through substrate

Overload: Five times rated power,

as long as the one second aver-

age dissipation does not exceed

the wattage rating.

∆R: ±2%, 2000 hours

Derating:

100% @ 25°C to 0% @ 180°C

ambient.

Power Rating:

03 = 3 W

05 = 5

07 = 7.5

10 = 10

025 = 25

050 = 50

100 = 100

TA305PA4K50JE

Series

Tolerance

K = 10%

J = 5%

F = 1%

Package:

PA = pin terminals,

std. for 3-10 W

PW = wraparound,

std. for 10-100 W

Resistance Value (Ω)

R250 = 0.25

10R0 = 10.0

2K00 = 2,000

45K0 = 45,000

Pin spacing

(on 3-10W models only)

2 = .2"

3 = .3"

8 = .8"

RoHS compliant

0.25 –––R250J    

1.00 –––1R00J          

1.50 –––1R50J          

2.00 –––2R00J          

4.70 –––4R70J          

5.00 –––5R00J          

5.10 –––5R10J          

7.50 –––7R50J          

8.20 –––8R20J          

10.00 –––10ROJ          

11.00 –––11R0J          

12.00 –––12R0J          

15.00 –––15R0J          

20.00 –––20R0J          

24.00 –––24R0J          

27.00 –––27R0J          

33.00 –––33R0J          

47.00 –––47R0J          

50.00 –––50R0J          

62.00 –––62R0J          

68.00 –––68R0J          

75.00 –––75R0J          

100.00 –––100RJ          

150.00 –––150RJ          

200.00 –––200RJ          

250.00 –––250RJ          

270.00 –––270RJ          

300.00 –––300RJ          

470.00 –––470RJ          

500.00 –––560          

620.00 –––620RJ          

680.00 –––680RJ          

1,000.00 –––1K00J          

1,500.00 –––1K50J          

1,800.00 –––1K80J          

2,000.00 –––2K00J          

2,500.00 –––2K50J          

3,000.00 –––3K00J          

4,000.00 –––4K00J          

4,700.00 –––4K70J          

5,000.00 –––5K00J          

5,100.00 –––5K10J          

7,500.00 –––7K50J          

10,000.00 –––10K0J          

15,000.00 –––15K0J          

18,000.00 –––18K0J          

20,000.00 –––20K0J          

30,000.00 –––30K0J          

39,000.00 –––39K0J          

50,000.00 –––50K0J          

75,000.00 –––75K0J          

100,000 –––100KJ          

150,000 –––150KJ          

200,000 –––200KJ          

 = Most popular standard values,  = Stock values,  = Non-standard values subject to minimum handling charge per item

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