Rev Date: 3/16/2021

2

www.seielect.com

This specification may be changed at any time without prior notice

marketing@seielect.com

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

VM / MVM Series

Ceramic Housed Vertical Mount Resistor

Stackpole Electronics, Inc.

Resistive Product Solutions

Performance Characteristics

Power Derating Curve:

Recommended Solder Profile

This information is intended as a reference for solder profiles for Stackpole resistive components. These profiles should

be compatible with most soldering processes. These are only recommendations. Actual numbers will depend on board

density, geometry, packages used, etc.

, especially those cells labeled with “*”.

100% Matte Tin / RoHS Compliant Terminations

Soldering iron recommended temperatures: 330°C to 350°C with minimum duration.

Maximum number of reflow cycles: 3.

Moisture Resistance

± 5%

Thermal Shock

± 2%

Load Life @ 70

C - 1000 hours

± 5%

Resistance to Soldering Heat

± 2%

Short Time Overload - 5 X Pn for 5 seconds

± 2%

Dielectric Withstanding Voltage

± 2%

Test

Test Results

Operational temperature range is -55°C to 275°C for VM and -55°C to 150°C for MVM.

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.