Rev Date: 4/13/2021

3

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This specification may be changed at any time without prior notice.

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Please confirm technical specifications before you order and/or use.

CB / MCB Series

Ceramic Housed with Axial Leads Power Resistor

Stackpole Electronics, Inc.

Resistive Product Solutions

RoHS Compliance

Stackpole Electronics has joined the worldwide effort to reduce the amount of lead in electronic components and to meet the various

regulatory requirements now prevalent, such as the European Union’s directive regarding “Restrictions on Hazardous Substances”

(RoHS 3). As part of this ongoing program, we periodically update this document with the status regarding the availability of our

compliant components. All our standard part numbers are compliant to EU Directive 2011/65/EU of the European Parliament as

amended by Directive (EU) 2015/863/EU as regards the list of restricted substances.

RoHS Compliance Status

CB

General Purpose Ceramic Housed with

Axial Leads Wirewound Resistor

Axial

YES

100% Matte Sn

Jan-06

06/01

MCB

Ceramic Housed General Purpose

Metal Oxide Element Resistor

Axial

YES

100% Matte Sn

Jan-06

06/01

Lead-Free

Effective Date

Code

(YY/WW)

Standard

Product

Series

Description

Package /

Termination

Type

Standard

Series RoHS

Compliant

Lead-Free Termination

Composition

Lead-Free

Mfg. Effective Date

(Std Product Series)

Recommended Lead Free Resistor Reflow Profile

Wave Soldering

Description

Maximum

Recommended

Minimum

Preheat Time

80 seconds

70 seconds

60 seconds

Temperature Diff.

140°C

120°C

100°C

Solder Temp.

260°C

250°C

240°C

Dwell Time at Max.

10 seconds

5 seconds

*

Ramp DN (°C/sec)

N/A

N/A

N/A

Temperature Diff. = Defference between final preheat stage and soldering stage.

Convection IR Reflow

Description

Maximum

Recommended

Minimum

Ramp Up (°C/sec)

3°C/sec

2°C/sec

*

Dwell Time > 217°C

150 seconds

90 seconds

60 seconds

Solder Temp.

260°C

245°C

*

Dwell Time at Max.

30 seconds

15 seconds

10 seconds

Ramp DN (°C/sec)

6°C/sec

3°C/sec

*