MKPD 1200VDC IGBT Snubber Film Capacitor 0.47-4.5µF

INTRODUCTION

Product Parameter

MKPD 1200VDC technical specification

Un 1200VDC · Us 1800VDC · Urms 500VAC

Voltage group	Un 1200VDC · Us 1800VDC · Urms 500VAC
Capacitance range	0.47-4.5µF (9 catalog configurations)
Reference standard	GB/T 17702-2013 (IEC 61071:2007)
Dielectric / construction	Metallized polypropylene film (MKP), self-healing
Case and sealing	PBT case and epoxy resin, both UL94 V-0
Terminals	Lead-free tin-plated copper terminals
Capacitance tolerance	J: ±5% · K: ±10%
Climatic category	40/105/56
Case temperature range	-40°C to +105°C
DC test between terminals	1.5 × Un for 10 seconds
Terminal-to-case test	2100VAC, 50Hz for 10 seconds
Insulation resistance	≥100,000MΩ when Cn ≤0.33µF; IR × Cn ≥30,000s when Cn >0.33µF; measured at 20°C, 100VDC, 1 minute
Voltage derating	From 85°C to 105°C: reduce operating voltage by 1.33% per °C
Reference life	100,000 hours at Un and 70°C hotspot temperature

Voltage-specific model matrix

C (µF)	W ±1	T ±1	H ±1	dV/dt (V/µs)	Ipeak (A)	ESR 100kHz (mΩ)	Irms 10kHz 70°C (A)	Ls (nH)	Part number
0.47	42.5	24.5	27.5	650	305.5	7.6	14	≤25	MKPD474D1200***+-042
0.56	42.5	24.5	27.5	650	364	6.4	14.5	≤25	MKPD564D1200***+-042
1.0	42.5	33.5	35.5	650	650	3.8	20.5	≤25	MKPD105D1200***+-042
1.2	42.5	33	45	650	780	3.6	22.5	≤25	MKPD125D1200***+-042
1.5	42.5	33	45	650	975	4.2	25	≤25	MKPD155D1200***+-042
2.0	57.5	30	45	450	900	3.8	27	≤35	MKPD205D1200***+-057
2.5	57.5	35	50	450	1125	3.5	30	≤35	MKPD255D1200***+-057
3.0	57.5	35	50	450	1350	3.2	31	≤35	MKPD305D1200***+-057
4.5	57.5	42.5	56	450	2025	3.1	32	≤35	MKPD455D1200***+-057

Source note: Model codes and numeric values are reproduced from the supplied LORIDA specification. Capacitance is measured at 10kHz; Irms is specified at 10kHz and 70°C with ΔT ≤15°C; ESR and ESL are typical values.

Product Information

Engineering decision support for MKPD 1200VDC

LORIDA manufactures this MKPD metallized polypropylene IGBT snubber capacitor family in 0.47-4.5µF. Use the voltage-specific matrix to compare electrical performance and dimensions, then send the operating waveform and mounting envelope for sample, quotation or selection support.

Application fit and engineering boundaries

Typical circuit use

IGBT module snubber networks, industrial inverter bridges, welding power conversion, UPS power stages and other high-pulse switching circuits.

Electrical selection boundary

Use only the 1200VDC rows shown on this page. Check capacitance, voltage, pulse capability, current, temperature and physical dimensions together.

Thermal and layout boundary

Include bus-bar and semiconductor heating in hotspot evaluation. Keep the connection loop short to reduce stray inductance.

Sampling and validation

Request samples against the selected matrix row. Record the test voltage, switching frequency, waveform, case temperature and acceptance criteria during validation.

Distributor and importer support

Use the voltage group and model matrix to organize quotations, mixed-model requests and cross-reference discussions without combining values from different ratings.

Brand and OEM support

Provide the target label, packaging, documentation and annual demand with the engineering data so commercial and technical review can follow the same configuration.

End-equipment manufacturer support

Submit the DC bus voltage, switching frequency, dV/dt or peak current, RMS current, temperature and mounting envelope for a focused selection review.

Quality documentation boundary

Request the documents needed for the selected series and project. Public claims are limited to the standards and conditions stated in the approved product information.

MKPD construction and mounting reference

LORIDA MKPD IGBT snubber capacitor English construction and mounting reference

Frequently asked engineering questions

What is the difference between MKPD and MKPH?

MKPD uses copper terminal structures for direct, low-inductance connection near power-semiconductor assemblies. MKPH uses parallel wire leads for compact PCB mounting.

How should capacitance be selected?

Start from the required snubber energy and waveform, then verify rated voltage, pulse slope, peak current, RMS current, temperature and available dimensions against one row in the voltage-specific matrix.

How is peak current checked?

For the published matrix, Ipeak follows the relationship Ipeak = C × dV/dt. The circuit loop, terminal arrangement and thermal conditions must also remain within the listed limits.

Why are ESR and ESL important?

ESR contributes to high-frequency loss and temperature rise. ESL and the external mounting loop influence switching overshoot and ringing.

Where should the capacitor be mounted?

Place it close to the IGBT switching terminals, use short broad conductors and minimize commutation-loop area.

What temperature limits apply?

The MKPD case-temperature range is -40°C to +105°C. From 85°C to 105°C, apply the specified voltage derating of 1.33% per °C.

Can samples and engineering review be requested?

Yes. Submit the target capacitance, DC-link voltage, switching frequency, dV/dt or peak current, RMS current, temperature and mounting envelope for review.

What must be confirmed before ordering?

Confirm the exact matrix row, capacitance tolerance, terminal outline, case dimensions, mounting geometry, sample quantity and required documents.

Get quotation or selection support

Send company and contact details, buyer type, application, DC bus voltage, switching frequency, capacitance, rated voltage, dV/dt or peak current, RMS current, maximum dimensions, terminal or mounting method, operating temperature, target quantity and document requirements.

Contact LORIDA Compare IGBT snubber capacitor series Film capacitor category

LORIDA MKPD 1200VDC IGBT Snubber Film Capacitor Series 0.47-4.5µF

1200VDC Metallized Polypropylene Film Capacitors

Product overview