Our brand Semelab designs and manufactures high performance semiconductor solutions for customers in aerospace, space, defence and industrial markets.

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 including actuation, control systems, power generation and distribution.

Our research and development teams have an excellent track record for developing innovative industry solutions and our engineers have extensive experience in designing a range of device configurations to meet customer specific requirements for the most demanding environments.  

Hi-Rel Processing

Capabilities

Semelab are specialists 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.

Semelab 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.

Download Quality Documents

 
QR204
 
MIL
 
CEC
 
BS
JQR -A
-B
 
TXV
TX
 
A
B
C
D
 
A
B
C
D
 Pre-cap Visual
Y
 
 
Y
 
 
Y
 
 
 
 
Y
Y
Y
 
 High Temp Storage
Y
Y
 
Y
Y
 
Y
Y
Y
 
 
Y
Y
Y
 
 Temperature Cycle
20 cycles
20 cycles
 
20 cycles
20 cycles
 
5 cycles
5 cycles
5 cycles
 
 
10 cycles
10 cycles
10 cycles
 
 Constant Acceleration
Y
Y
 
Y
Y
 
Y
Y
Y
 
 
Y
Y
Y
 
 Fine Leak test
Y
Y
 
Y
Y
 
Y
Y
Y
 
 
Y
Y
Y
 
 Gross Leak Test
Y
Y
 
Y
Y
 
Y
Y
Y
 
 
Y
Y
Y
 
 Variables Electrical test
 
 
 
?
?
 
Y
 
 
 
 
Y
 
 
 
 Attributes Electrical tests
Y
Y
 
Y
Y
 
 
Y
 
Y
 
 
Y
Y
Y
 Burn-In (HTRB)
O
O
 
O
O
 
168 hrs*
72 hrs*
 
48 hrs*
 
160 hrs*
72 hrs*
48 hrs*
48 hrs*
 Variables Electrical test
 
 
 
?
?
 
 
 
 
 
 
 
 
 
 
 Attributes Electrical tests
Y
Y
 
Y
Y
 
 
 
 
 
 
 
 
 
 
 Burn-In (Power)
160 hrs
160 hrs
 
160 hrs
160 hrs
 
168 hrs*
72 hrs*
 
48 hrs*
 
160 hrs*
72 hrs*
48 hrs*
48 hrs*
 Variables Electrical test
 
 
 
?
?
 
Y
 
 
 
 
Y
 
 
 
 Attributes Electrical tests
Y
Y
 
Y
Y
 
 
Y
Y
Y
 
 
Y
Y
Y
 Radiographic tests
 
 
 
 
 
 
 
 
 
 
 
Y
 
 
 
 
Key
 

Y

?

O

*

Test performed

Test performed if required by device detail specification

24 hours for PNP devices. 48 hours for NPN devices

High Temp Reverse Bias for Case rated devices Power Burn-in for Ambient rated Devices

QR204: Screening carried out in accordance with QR204
MIL: Screening carried out in accordance with MIL-PRF-19500 (Table 2)
CECC: Screening carried out in accordance with CECC 50000 Appendix 6
BS: Screening carried out in accordance with BS9300 section 1.2.10

Semelab has gained a key environmental certification in recognition of its improved environmental performance.

This reinforces Semelab's continuing commitment to the issues of:

  • Resource efficiency
  • The management and minimisation of waste
  • Improved awareness and understanding of environmental issues amongst its employees

 

ISO9001

ISO 14001: 2004

  • Environmental Management System
  • Certificate EMS 541996
  • Design, assembly and supply of semiconductors and associated technologies worldwide

 

CEC 50 000 & CEC 90 000

  • Certificate of Approval of Manufacturer
  • Certificate M1040 IECQ

 

DSCC

  • Qualified Linears List (June 2001)
  • Qualified Manufacturer Listed

 

Semelab is committed to continual improvement, pollution prevention and compliance with legal and stakeholder environmental requirements. Particular focus is given to:

  • Improvement of resource efficiency in areas such as raw materials and energy.
  • Improvement in the management and minimisation of waste.
  • Improvement in the awareness and understanding of environmental issues amongst employees and other stakeholders.

 

Semelab has adopted a numbering system to fully describe the devices that are available from its factory in Lutterworth. The additional code is printed on each device (subject to space availability) alongside the DATE CODE and rotated by 90 degrees.

We have also incorporated this information into the Semelab website, which can be accessed on any of our product listing pages by moving the mouse pointer onto the Product Status icon.

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.

The first digit of the code describes the degree to which each product is Pb free and RoHS compliant:

  • The code "Ex" indicates that the termination material is Pb Free - but the device is not RoHS compliant.
  • The Code "Rx" indicates that the device is fully RoHS compliant but using an exemption as currently understood from the EU authorities.
  • The code "Gx" indicates that the device is fully RoHS complaint and is, in addition, completely "green" i.e. does not require the use of any of the exemptions mentioned above.

 

The second digit of the code indicates the termination finish as follows:

  • x1 - SnAgCu (not to be included in category e2)
  • x2 - Sn alloys with no Bi or Zn excluding SnAgCu
  • x3 - Sn
  • x4 - Precious metal (Ag, Au, NiPd, NiPdAu etc but excluding Sn)
  • x5 - contains Bi
  • x7 - low temperature solders (<150C) containing Indium (no Bi)

 

In practice, Semelab 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.

Semelab is a downstream user and does not use any substance of more than one tonne per year (other than exempted process gases).

Semelab is not a manufacturer or importer of substances or chemicals, so is not required to register or pre-register under the REACH regulations of directive.

We do not believe we use any substance of very high concern within the meaning of REACH.

We continue to work with our suppliers in ascertaining the registration status of the substances and preparations that we use. To date we are not aware of any issues

America

Craig Tomchesson 
Business Development Manager,
North America

TT Electronics - Power and Hybrid Business Unit
3130 Lazy Lake Ln
Montgomery,
TX 77356

Mobile: +1 281 435 2572 

Email: craig.tomchesson@ttelectronics.com 

Europe

Robert Coleman
Business Development Manager – Southern England, Germany, Turkey, Asia, Russia, Eastern Europe.

TT Electronics – Power and Hybrid Business Unit
Coventry Road,
Lutterworth,
Leicestershire,
LE17 4JB,
UK

Telephone: +44 (0)1455 556565

Mobile: +44 7836 501749

Email: robert.coleman@semelab-tt.com

Greg Hawkins
Business Development Manager - Scotland, Scandinavia, Israel, Asia.

TT Electronics – Power and Hybrid Business Unit
Coventry Road,
Lutterworth,
Leicestershire,
LE17 4JB,
UK

Telephone: +44 (0)1455 556565

Mobile: +44 7527 337119

Email: greg.hawkins@ttelectronics.com

Bernard Negrevergne  
Business Development Manager – France, Spain, Belgium.

TT Electronics – Power and Hybrid Business Unit
Coventry Road,
Lutterworth,
Leicestershire,
LE17 4JB,
UK

Mobile: +33 (0)6 08 49 18 72

Email: bernard.negrevergne@ttelectronics.com

Ken Varley 
Business Development Manager – Northern England, Italy.

TT Electronics – Power and Hybrid Business Unit
Coventry Road,
Lutterworth,
Leicestershire,
LE17 4JB,
UK

Mobile: +44(0) 7767 247564

Email: ken.varley@ttelectronics.com

Americas

Arrow www.arrownac.com
Falcon www.falconelec.com
Future www.futureelectronics.com
Mouser www.mouser.com
Richardson www.richardsonrfpd.com
Sager www.sager.com
TTI www.ttiinc.com
WPG Americas www.wpgamericas.com

Asia and Australasia

Chinamax www.chinamax.com.hk
Eastern Tech www.hketd.com/en
Indus Technologies www.industechno.com
Mouser www.mouser.com
Richardson www.richardsonrfpd.com
RNB Korea ltd www.rnbkorea.com
Seamax Engineering Pte Ltd seamax.com.sg
Serial Microelectronics Pte Ltd www.serialmicro.com
TTI www.ttiasia.com

Europe (EMEA)

Arrow www.arroweurope.com
Charcroft Electronics Limited www.charcroft.com
E.D.E. Electronics Ltd www.ede.co.il
EUROMIP www.euromip.com
Mouser www.mouser.com
Protec GmbH www.protec-semi.de
Radiant www.radiant.su/eng
Richardson www.richardsonrfpd.com
TTI www.ttieurope.com

North American Manufacturer’s Representatives

MI, OH, IN, KY,WV,WP - Bear VAI Technology www.bearvai.com
IL, WI, MN, ND, SD, NE, MO, IA, KS, TX, AR, OK, LA - Cain-Forlaw www.cain-forlaw.com
ME, NH, VT, MA, CT, RI — Coakley, Boyd and Abbett www.cbane.com
FL, Puerto Rico — Conley and Associates, Inc. www.conleyrep.com
Upstate NY - Electra Sales www.electrasales.com
Southern CA — O’Donnell South www.odas.com
AZ, NM - Torch Technical www.torchtechnical.com
Canada – Weissco www.weissco.ca

Semelab Limited
Coventry Road
Lutterworth
Leicestershire
LE17 4JB

Tel: +44 (0)1455 556565
sales@semelab-tt.com