S & SL Series – Riedon™ Surface Mount Wirewound Resistors by Bourns

Features

n

Formerly a Riedon™ product

n

Resistances from 0.005 to 50 kΩ

n

Resistance tolerances as low as ±0.05 %

n

Power rating: 0.5 to 4 watts

n

High temperature rating (+275 °C)

n

TCR as low as ±20 PPM/°C

n

Superior surge handling capability

n

Non-inductive windings are available

(Type SN)

n

Flame resistant per UL 94V-0

n

RoHS compliant*

Specifications

Bourns Part

Number

Power Rating

@ 70 °C (W)

Resistance

Range (Ω)1

Non-Inductive Winding

Resistance Range (Ω)2

Maximum

Working Voltage

S1

0.5

0.01 to 400

0.1 to 200

√P * R

S2

1

0.005 to 3k

0.1 to 1.5K

S4

2

0.01 to 15k

0.1 to 7.5K

S3

3

0.01 to 25k

0.1 to 12.5K

S5

4

0.01 to 50k

0.1 to 25K

SL2

1

0.005 to 0.01

N/A1

SL4

2

0.005 to 0.07

N/A1

1

Other resistance values may be available. Please contact Bourns.

2

Below 0.1 Ω the inductance of a single winding, or the metal element (SL), is negligible.

Specifications

Value

Tolerances

S: greater than 100 Ω, ±0.05 % to ±5 %

S: from 1 Ω to 100 Ω, ±0.1 % to ±5 %

S: below 1 Ω, ±1 % to ±5 %

SL: ±1 % to ±5 %

Temperature Coefficient

S: greater than 10 Ω : ±20 PPM/°C3

S: from 1 Ω to 10 Ω : ±50 PPM/°C3

S: less than 1 Ω : Contact Bourns

SL: ±200 PPM/°C3

Temperature Range

-55 °C to +275 °C

Dielectric Strength

S: 1000 VAC

SL: 500 VAC

Insulation Resistance

>1000 MOhms / Dry

Termination Finish

100% Electroless Tin (matte) over Copper

3

Other TCR values available upon request.

Environmental Performance

Specification (MIL-STD 202)

Value

Dielectric

±0.5 % + 0.05 Ω

Load Life

±1.0 % + 0.05 Ω

Storage

±0.5 % + 0.05 Ω

Moisture Resistance

±1.0 % + 0.05 Ω

Thermal Shock

±0.5 % + 0.05 Ω

5X Overload (5 s)

±0.5 % + 0.05 Ω

Shock

±0.5 % + 0.05 Ω

Solder Heat Resistance (260 °C, 10 s)

±0.5 % + 0.05 Ω

Additional Information

Click these links for more information:

PRODUCT TECHNICAL

LIBRARY

INVENTORY SAMPLES

CONTACT

Americas: Tel: +1 951-781-5500

Email: americus@bourns.com

Mexico: Tel: +52-614-478-0400

Email: mexicus@bourns.com

Asia: Tel: +886-2-2562-4117

Email: asiacus@bourns.com

EMEA: Tel: +36 88 885 877

Email: eurocus@bourns.com

www.bourns.com

*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.

WARNING Cancer

and Reproductive Harm

www.P65Warnings.ca.gov