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General information

SPECIFICATIONS
Dimensions, specifications and data shown in this catalogue are subject to change without notice. Consequently, they are not contractual in any case. Electrical, mechanical and endurance specifications are based upon in-house tests made by APEM. These tests are conducted using internationally recognised procedures. In the event of a product being used under different conditions, the user must ensure the product’s suitability for use under those conditions. Incorrect storage, handling, operation or application of the product may result in damage to the product or equipment.
The negative value indicated under “Operating temperature” is given for normal usage conditions (products free of moisture, which could generate frost or ice and block the mechanism).
The specifications give the technical performances of the switches. If the equipment on which our products are mounted is submitted to safety standards, the customer should select approved models or models conforming to the standards (marked CE only). Consult factory for details of models that can be marked CE.

DRAWINGS
Products are shown with their standard actuator (for other actuators, see options).
Scale : drawings in this catalogue are to different scales : ask for a data sheet if you need other dimensions for a specific part number.

TOLERANCES
Unless otherwise specified, the general tolerance for dimensions in this catalogue is ± 0,3 (.012).
Overall dimension tolerance is ± 0,5 (.020). Ask for a data sheet for further information.

PART NUMBERS
To order a switch model, every option has to be specified. However, for the S series toggle switches and 18000 series pushbutton switches, we continue to accept former part numbers using default options. If the actuator is not specified, we will supply lever or plunger -13.

SOLDERING CONDITIONS
Hand soldering with iron : 300°C, 3 seconds max.

SEALING OF TERMINALS
Due to the new generations of active flux, epoxy sealing of terminals is preferred, to prevent any risk of switch
contamination.

ROHS COMPLIANCE
The RoHS directive 2002/95/EC of the European parliament and of the Council of 27 January 2003 restricts the use of certain harzardous substances in electrical and electronic equipment: Mercury (Hg), Cadmium (Cd), Hexavalent Chrome (Cr+6), Polybrominated biphenyls (PBB) and Polybrominated diphenyl ethers (PBDE), Lead (Pb).
  • Standard products manufactured by APEM are already and will remain in compliance with the restriction of the marketing and use of the above mentioned substances imposed by such directive.
  • Switches for printed circuit boards with tin/lead plated terminals (SnPb) have been replaced by components with pure tin plating.
  • For specific options using LED illumination, wires are soldered with lead-free solder.

There is no change of part number for RoHS compliant products.
Some specific products or options can still be supplied in non-RoHS version with customer’s agreement.

Contacts and ratings

Contact materials

Several contact technologies are available depending on models :

For miniature switches
A End contacts : silver.
Center contacts and terminals : brass, silver plated.
For high ratings at 125VAC - 250VAC or over 0,1A 30VDC (levels III and IV).
AD End contacts : silver with gold plating over nickel barrier.
Center contacts and terminals : brass, gold plated.
For low level applications (levels I and II).
Can be used for high ratings (level IV),
the gold layer being considered only as a protection against oxidation during storage.
CD Contacts and terminals : brass with gold plating over nickel barrier.
or LD For low level applications up to 20mA 20VDC or 80mA 5VDC (levels I and II).
X780 Silver rivet, gold plated (11000 and 12000 series).

For industrial switches
A End contacts : silver rivet or silver inlay.
If not specified in model number, the contact material is indicated in the specifications of each series.
C Silver plated copper or brass.

Silver cadmium oxide contacts (S) which used to be available on the 4000 - 600H - 600NH and 2600 series, are
discontinued and will be replaced by silver tin oxyde contacts before 2005.

High inrush currents

Special contact materials and switch constructions allow particularly high inrush currents to be taken by some models of the 5000, 11000 and 12000 series.

Electrical levels

1. Standard miniature switches
Standard miniature switchesRecommended contacts
Level I : very low level
Telecommunications
D,AD or CD contacts
Level II : low level
General electronic applications
D,AD or CD contacts
Level III : intermediate level
Low voltage
Electric appliances
A or AD contacts
Level IV :
Mains power supply
A contact

2. Industrial switches - silver contacts

Industrial switches - silver contacts 

The above curves feature all the ratings available in our product range. Hatched areas show minimum ratings.
Maximum ratings are indicated in the specifications of each series. Note that max. current is given for standard life
expectancy. For specific applications, higher currents can be applied, resulting in reduced life expectancy and vice-versa.
Consult factory.

Low current or dry circuit (level I)

The quality of the gold plating (hardness, porosity, adherence) and the design of the contacts (pressure or sliding contact) allow the use of very low currents down to 10?A 5V or 10mA 50mV depending on models, measurable according to IEC 512-2, test 2a.

Positions and connections for 3-way switches
Function 4

Miniature switches

5000 and 7000 series are available with CT or TH connections.
Desired connections are to be specified in enlarged box of model structure.
12000 and S series are available with TH connections only.

Model structure 5000 and 7000 series

Model structure 5000 and 7000 series 

Miniature switches

Industrial switches: 600 600H - 3600NF - 6000 AND 2600 series

Industrial switches

Switches for peak currents

  • For switching power supplies, DC-DC converters, motors...
  • Peak current with 125/250VAC according to IEC 1058 (Fig 1) and direct current 60VDC (Fig 2)
  • 2 maintained positions

Testing circuit AC voltage
Figure1

Testing circuit AC voltage 

Testing circuit DC voltage
Figure2

Testing circuit DC voltage 
Current/voltage rating examples:

Current voltage examples 

Degrees of protection : IP and IK codes

Degree of protection
ImportantFor an additional protection of switches used in harsh environments against sand, frost or other contaminants that may cause switch failure, we recommend the use of sealing boots, section H.

Surface mount

Typical smt reflow profile

Typical lead-free smt reflow profileThe P.C. board, carried by a conveyor belt, goes through the different areas of a reflow soldering oven :
- pre-heating (maximum 170°C, 60 secs)
- reflow peak (maximum 245°C)
- final cleaning (optional)  

 








Board rework technique

Board rework techniqueHot air reflow technique is preferred. Avoid use of a traditional soldering iron.
Caution : Excessive and/or repeated high temperature exposure may affect switch
performance and reliability.

Typical lead-free smt reflow profile

Complying with the ROHS directive.

Example of Pb-free profile requirements for soldering heat resistance

Parameter Reference Specification (small case)
Temperature gradient in preheating   3°C/s max.
Soak time tsoak 2-3 minutes
Time above 217°C t1 60-150 seconds
Time within 5°C of actual peak temperature t3 20-40 seconds
Peak temperature in reflow Tpeak 260°C (+0/-5°C)
Temperature gradiant in cooling   6°C/second max.
Time 25°C to peak temperature   8 minutes max

Typical smt reflow profile