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PF1220S-4: 产品描述PF1220 Series Precision Foil Power Resistors; 文件大小55KB，共2页; 制造商ETC1

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PF1220S-4概述

PF1220 Series Precision Foil Power Resistors

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RIEDON

TO-220 Housing

Rated Power 10 Watts

Resistances from 0.5 to 150K Ohms

High Stability Foil Resistance Elements

Resistance Tolerance to ± 0.02%

Operating Temperature -55°C to +155°C

Low Inductance ( <50nH ) and Thermal EMF

PF1220 Series

Precision Foil Power Resistors

Riedon's TO-220 precision foil resistors satisfy demanding applications for high accuracy and

stable power resistors housed in the convenient TO-220 case. The PF1220s Nichrome foil resistance

element makes a wide resistance range available. It is bonded to an Al

substrate ensuring excellent

power dissipation and stability. Careful choice of materials and rugged construction ensure a reliable

component, and the very small tolerance and temperature coefficient provide high precision in difficult

applications.

SPECIFICATIONS

Resistance Range -

0.5 to 150K Ohms

( 100 Ohm Max. for 4-Terminal )

Free Air Power Rating -

1.5 Watts ( Tambient=70°C )

Power Rating on Heatsink -

10 Watts ( Theatsink=25°C )

Thermal Resistance -

10.8°C/W

Temperature Coefficient -

± 1ppm/°C ( +20°C to +60°C )

± 3ppm/°C ( -55°C to +125°C )

± 5ppm/°C ( -55°C to +155°C )

Stability -

0.01%

Thermal EMF -

< 1mV/°C

Proof Voltage -

1KVDC

Maximum Current -

25 A

Operating Temperature -

-55°C to +155°C

Resistance Element -

Nichrome Foil

Substrate -

Al2O3

Housing -

Epoxy or PPS

Leads -

Cu, Tinned, 2 or 4 pin

Ordering information:

Part Number - Resistance - Tolerance - TCR

Example:

PF1220 0.5 Ohm 0.1% 5ppm

Resistance

0.5 to <10W

³10

to <50W

³50W

Tolerances Available (±%)

0.1, 0.25, 0.5, 1

0.05, 0.1, 0.25, 0.5, 1

0.02, 0.05, 0.1, 0.25, 0.5, 1

PF1220

Power Derating Curve

120

100

Power Level %

25 40 55 70 85 100 115 130

Heatsink Temperature

°C

Riedon Inc.

REV 6/05

300 Cypress Avenue

Alhambra CA 91801

www.riedon.com

(626) 284-9901

Fax: (626) 284-1704

PF1220S-4相似产品对比

	PF1220S-4	PF1220-4	PF1221	PF1221-4	PF1220S	PF1220
描述	PF1220 Series Precision Foil Power Resistors	PF1220 Series Precision Foil Power Resistors	PF1220 Series Precision Foil Power Resistors	PF1220 Series Precision Foil Power Resistors	PF1220 Series Precision Foil Power Resistors	PF1220 Series Precision Foil Power Resistors

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