Global Customers:
We specialise in high reliability custom packaging components for critical applications and offer a wide product portfolio including discrete semiconductors, power modules and RF transistors. Our devices are typically used in key applications such as actuation, control systems, power generation and distribution.
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We have adopted a numbering system to fully describe the devices that are available. The additional code is printed on each device (subject to space availability) alongside the DATE CODE and rotated by 90 degrees.
Semelab RoHS Product Code descriptions
Following the JEDEC JESD 97 - but with additions, we apply the following two digit code to fully describe the ability of SEMELAB products to meet or exceed the RoHS requirements:-
The two digit code contains a letter (E, R or G) to indicate the level of compliance with the second digit being a number (1 to 9) to indicate the type of lead finish.
In practice, the Bedlington site uses SnAgCu (category x1) for most of its wire ended devices, x3, Sn (matt tin) for plastic encapsulated discrete products and x4 - gold for ceramic surface mount devices along with several of the older small signal metal case parts. Termination finish could change to meet any customer's specific needs.
Devices qualified to DESC, BS, CECC specifications will continue to respect the build standard and termination finish as demanded by the version of DECS, BS, CECC specifications ordered. Pre-RoHS products - remain available on request.
Traditionally built hermetically sealed devices are maintained in production to satisfy the makers of High Reliability equipment (usually exempt from the RoHS regulations) where "no changes" are demanded usually on reliability and predictability grounds.
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TT Electronics specialises in hi-rel products.
We have more than 40 years experience in supplying products to military and hi-rel specs.
We hold quality approvals from major international standards organisations.
Our Bedlington site can supply fully qualified & approved devices to DSCC, CECC, BS, and ESA specifications. We can supply further products processed exactly in accordance with CECC, BS, CV specifications via in-house process specifications. Discrete products are also available processed to the MIL-PRF-19500 flows to give a viable European alternative source for popular types.
Almost any customer specification for product inspection and screening can be supported.
Get In Touch With Our TeamSemiconductors
Power Modules
RF Power MOSFETs