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100KJ

更新时间： 2024-11-07 12:56:11

品牌	Logo	应用领域
OHMITE		/
页数	文件大小	规格书
2页	239K
描述
Power ChipÂ® Thick Film on Alumina Substrate

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THick Film

AluminA

TA Series

Power Chip^®

Thick Film on Alumina Substrate

Ohmite’s original Power Chip resistors feature our

thick film on alumina substrate technology. These

planar packages yield space saving, 10W/in²power

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 prod-

uct 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.

F ꢀ AT u ꢁ ꢀ S

• High-Temp Terminal Construction

• Wide Resistance Range

• Low Inductance (50nH-100nH)

• High Power Density

Flexible packaging schemes make these resistors

ideal for power supplies, audio amplifiers, video fly-

back, and other power control applications.

• Easy to install. PC-mountable

SꢀꢁꢂꢀS SPꢀcꢂFꢂcATꢂONS

Series

TA203

TA303

Wattage

3.0

Series

TA205

TA305

TA605

TA805

Wattage

5.0

Series

TA207

TA307

Wattage

7.5

Series

TA310

TA810

Wattage

10.0

Series

TA025

TA050

TA100

Wattage

25.0

50.0

100.0

3.0

5.0

10.0

chAꢁAcTꢀꢁꢂSTꢂcS

Alumina

Substrate

Resistor

Coating

Thick Film

Glass

Solder Plated Phosphor Bronze

20 Watts/Meter/°C

Terminals

Thermal Conductivity

1 ohm:

450 ppm/°C

Temperature Coefficient

1 to 100Ω:

100 ppm/°C

101Ω and up: 50 ppm/°C

±1%, ±5% and ±10%

Tolerance

Power Rating

Based on 25°C free air

0.25 ohm to 10M ohm. Consult factory for other values

Resistance Range

350 VAC, 500 VDC through glass, 1000 VAC, 1500 VDC through substrate

Maximum Operating Voltage

Overload

Five times rated power, as long as the one second average dissipation does not exceed the wattage rat-

ing. ∆R: ±2%, 2000 hours

100% @ 25°C to 0% @ 180°C ambient.

Derating

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

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