FWP227x Series – Riedon™ Foil Power Resistors by Bourns

2

4

3

1

FWP2272P

10R0 1%

FWP2274N

10R0 1%

Features

n

Formerly a Riedon™ product

n

Resistances from 0.001 to 100 Ω

n

Resistance tolerances to ±0.1 %

n

TCR to ±25 PPM/°C

n

Power rating to 80 watts

n

Load stability to 0.1 %

n

RoHS compliant*

Specifications

Bourns Model

FWP2272P

FWP2274P

FWP2272N

FWP2274N

Terminals

2

4

(kelvin connection)

2

4

(kelvin connection)

Resistance Range (Ω)

0.01 to 100

0.001 to 50

0.01 to 100

0.001 to 50

Power Rating with Heat Sink (W)

60

80

Thermal Resistance Rthj-c (K/W)

1.3

1.0

Tolerances

(depends on resistance)

0.1 %1 / 1 % / 2 % / 5 %

(others upon request)

Stability

0.1 % / 0.2 % / 0.5 %

(depends on stress)

Temperature Coefficient2

±25 PPM/°C (20 to 60 °C)

±50 PPM/°C (-40 to +130 °C)

FWP2272P / FWP2272N TK Shift depends on

resistance value (see the corresponding graph on the following page)

Voltage Proof

1.5 kVDC (higher upon request)

Thermal EMF

< 1 μV/K

Max. Current

45 A (85 A on request)

50 A (100 A on request)

Operating Temperature Range

-40 to +130 °C

Resistor Material

Metal Foil CuNiMn (DIN 17471)

Substrate

Al2O3

AlN

Housing

Epoxy

Connector Material

Cu / tinned or nickel plated

Max. Torque

back plate: 1.5 Nm

terminals: 1.3 Nm

MSL Level

MSL 1

1 Please inquire for low ohm values.

2 Contact Bourns for additional TCR values.

How To Order

FWP227 2 P - R010 - F

Model

FWP227

Terminals

2 = 2 terminals

4 = 4 terminals

Power Rating

P = 60 W

N = 80 W

Resistance (Ω)

“R” represents decimal point

(example: R002 = 0.002 Ω,

5R00 = 5.00 Ω, 10R0 = 10 Ω)

Tolerance (%)

B = ±0.1

G = ±2

F = ±1

J = ±5

Packaging Information

Bulk .........................................50 pcs. per box

PRODUCT TECHNICAL

LIBRARY

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CONTACT

Additional Information

Click these links for more information:

*RoHS Directive 2015/863, Mar 31, 2015 and Annex.

Specifications are subject to change without notice. Users should verify actual device performance in their specific

applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the

last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

“Bourns” is a registered trademark of Bourns, Inc. in the United States and other countries.

In April 2023, BE Services Company, Inc., a subsidiary of Bourns, Inc., purchased certain assets of Riedon, Inc.,

including its logo and trademarks and the right to continue to manufacture former Riedon™ products.

“Riedon Logo” is a registered trademark of BE Services Company, Inc., in the United States.

“Riedon” is a trademark of BE Services Company, Inc.

CALIFORNIA WARNING: Can expose you to lead, a carcinogen and reproductive toxicant.

See www.P65Warnings.ca.gov