Datasheet > PF1262-7R5F1

PF1262-7R5F1

更新时间： 2022-09-29 19:34:49

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PF1262-7R5F1 数据手册

PF1262 Series

TO-126 Power Thin Film Resistors

SPECIFICATIONS(continued)

Power Derating Curve

Power Rating Notes -

120

100

The PF1260 Series Thin Film Resistors must be attached to a

suitable heatsink. The maximum internal resistor temperature is

155°C.

To specify an appropriate heatsink use the following formula :

R_θH= T_MAX- ( P x R_θR) - T_A

-25

100

125

150

175

Where: R_θH= Thermal Resistance of Heatsink ( K/W )

R_θR= Thermal Resistance of Resistor ( K/W )

T_MAX= Maximum Temperature of Resistor

T_A= Ambient Temperature of Heatsink ( °C )

P = Power Through Resistor ( W )

Backplate Temperature (°C)

Mounting Notes -

The PF1260 Series Thin Film Resistors must be attached to

a suitable heatsink. Mount resistor using thermal grease to

a clean / ﬂat surface. Use a compression washer to provide

150 to 300 pounds ( 665 to 1330N ) of mounting force. Torque

mounting screw to 8 in-lbs ( 0.9 Nm ).

Back plate is isolated from both pins.

Riedon Inc.

300 Cypress Avenue

Alhambra CA 91801

(626) 284-9901

(626) 284-1704

08/14

www.riedon.com

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