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BSI BS EN 60068-2-58:2015+A1:2018

Environmental testing -- Tests. Test Td: Test methods for solderability, resistance to dissolution of metallization and to soldering heat of surface mounting devices (SMD)
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BSI BS EN 60068-2-58:2015+A1:2018

Environmental testing -- Tests. Test Td: Test methods for solderability, resistance to dissolution of metallization and to soldering heat of surface mounting devices (SMD)

PUBLISH DATE 2018
PAGES 46
BSI BS EN 60068-2-58:2015+A1:2018

This part of IEC 60068 outlines test Td, applicable to surface mounting devices (SMD).

A1_startThis document provides procedures for determining the solderability, resistance to dissolution of metallization and resistance to soldering heat of devices in applications using solder alloys, which are eutectic or near eutectic tin lead (Pb), or lead-free alloys.A1_end

The procedures use either a solder bath or reflow method and are applicable only to specimens or products designed to withstand short term immersion in molten solder or limited exposure to reflow systems.

The solder bath method is applicable to SMDs designed for flow soldering and SMDs designed for reflow soldering when the solder bath (dipping) method is appropriate.

The reflow method is applicable to the SMD designed for reflow soldering, to determine the suitability of SMDs for reflow soldering and when the solder bath (dipping) method is not appropriate.

The objective of this standard is to ensure solderability of component lead or termination. In addition, test methods are provided to ensure that the component body can resist against the heat load to which it is exposed during soldering.

This standard covers tests Td1, Td2 and Td3 as listed below:

Number of Td Test Method
Td1 Solderability of terminations Method 1: Solder bath

Method 2: Reflow

Td2 Resistance to soldering heat Method 1: Solder bath

Method 2: Reflow

Td3 Dewetting and resistance to dissolution of metallization Method 1: Solder bath

Method 2: Reflow

NOTE 1 For specific components other test methods may exist.

NOTE 2 Test Td does not apply to printed wiring board (PWB), see IEC 61189-3.

NOTE 3 Specific through-hole devices (where the device supplier has specifically documented support for reflow soldering) are also included in this standard.

SDO BSI: British Standards Institution
Document Number EN 60068-2-58
Publication Date May 21, 2018
Language en - English
Page Count
Revision Level 1
Supercedes
Committee EPL/501
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