Quality, approvals & laboratory

Management systems, product approvals and laboratory.

Management-system certificates, CNAS and UL laboratory programs, the test capability matrix and environmental compliance.

Management systems

ISO 9001, IATF 16949, ISO 14001 and ISO 45001.

Scope as stated on each certificate. Some certificates were issued under the company’s former name.

ISO 9001

Quality management system

IATF 16949

Automotive quality management system

ISO 14001

Environmental management system

ISO 45001

Occupational health and safety management system

Laboratory & validation capability

CNAS-accredited test center and UL WTDP laboratory.

The test center is accredited by CNAS to ISO/IEC 17025:2017 (L24638). The laboratory is part of the UL Witnessed Test Data Program for UL 1449 and UL 60384-14 (701335-001). It handles development testing as well as incoming, in-process and outgoing inspection.

UL WTDP · 701335-001

UL Witnessed Test Data Program laboratory

Accepted by UL in 2013–2014 into the Witnessed Test Data Program for UL 1449 (varistors) and UL 60384-14 (safety capacitors), laboratory no. 701335-001. Tests for UL certification projects can be run here, witnessed by UL staff.

UL 1449 SPD (4th ed) · Project 4789505630

UL 60384-14 + CSA E60384 · Project 4789725569

CNAS L24638

CNAS-accredited testing center

The test center is accredited by CNAS to ISO/IEC 17025:2017, registration no. L24638; the current certificate is valid from 2026-03-19 to 2031-11-25. CNAS is a signatory to the ILAC and APAC mutual recognition arrangements. The accredited scope is listed in the certificate annex.

CNAS L24638 laboratory accreditation certificate

Test capability matrix

Electrical, mechanical, climatic and compliance tests for safety capacitors, ceramic and film capacitors, varistors and NTC thermistors.

Test methods and criteria follow the applicable product standards and datasheets.

	Test item	Safety X2	Safety Y1	Safety Y2	Ceramic capacitor	Film capacitor	Varistor	NTC thermistor
Electrical	Capacitance	✓	✓	✓	✓	✓	✓
	Dissipation factor	✓	✓	✓	✓	✓
	Withstand voltage	✓	✓	✓	✓	✓
	Insulation resistance	✓	✓	✓	✓	✓
	Impulse voltage	✓	✓	✓
	Charge and discharge	✓	✓	✓
	Varistor voltage						✓
	DC leakage current						✓
	Clamping voltage						✓
	Impulse current						✓
	Maximum peak current						✓
	Surge						✓
	Nominal discharge current						✓
	Solderability	✓	✓	✓	✓	✓	✓	✓
	Resistance to soldering heat	✓	✓	✓	✓	✓	✓	✓
	Endurance	✓	✓	✓	✓	✓	✓	✓
	Ripple current	✓				✓
	Resistance							✓
	Endurance at continuous maximum current							✓
	Endurance at cycled maximum current							✓
Mechanical	Robustness of terminations (tensile)	✓	✓	✓	✓	✓	✓	✓
Mechanical	Robustness of terminations (bending)	✓	✓	✓	✓	✓	✓	✓
Climatic	Damp heat, steady state	✓	✓	✓	✓	✓	✓	✓
	Damp heat with load		✓	✓	✓		✓	✓
	Dry heat	✓	✓	✓	✓	✓	✓	✓
	Cold	✓	✓	✓	✓	✓	✓	✓
	Temperature characteristics		✓	✓	✓
	Temperature coefficient						✓
	Rapid change of temperature	✓	✓	✓	✓	✓	✓	✓
	Passive flammability	✓	✓	✓			✓
	Active flammability	✓		✓
Environmental compliance	RoHS	✓	✓	✓	✓	✓	✓	✓
Environmental compliance	Halogens	✓	✓	✓	✓	✓	✓	✓

Ask about testing

Environmental compliance

RoHS, halogens and conflict minerals.

RoHS and halogen tests are run in the in-house laboratory. RoHS and REACH SVHC declarations and the conflict-minerals policy are available on request.

RoHS

RoHS tests for every product family in the matrix above.

Halogens

Halogen tests for every product family in the matrix above.

Conflict minerals

STE sources no tin, tantalum, tungsten or gold from conflict regions. Suppliers confirm this in writing and pass the requirement on to their own suppliers.

Request compliance declarations

Product approvals