WIMA Snubber MKP Capacitors for Pulse Applications
WIMA Snubber MKP capacitors are designed for demanding pulse applications, featuring double-sided metallized electrodes and an internal series connection. They offer high reliability, self-healing properties, and a very low dissipation factor, making them ideal for high pulse and high frequency scenarios, particularly in IGBT applications. Available in configurations with 4-pin versions and screwable plate connections for particularly reliable contact.
Product Attributes
- Brand: WIMA
- Series: Snubber MKP
- Dielectric: Polypropylene (PP) film
- Electrodes: Double-sided metallized plastic film
- Encapsulation: Solvent-resistant, flame-retardant plastic case with epoxy resin seal, UL 94 V-0
- Terminations: Tinned wire or plates
- Color: Red case, Black marking
- Certifications: AEC-Q200 qualified, RoHS 2015/863/EU compliant
Technical Specifications
| Capacitance (µF) | Rated Voltage (VDC) | Rated Voltage (VAC*) | Capacitance Tolerance | Operating Temperature Range (°C) | Dissipation Factor (tan δ) at 1 kHz | Max. Pulse Rise Time (V/µs) at TA < 40°C | Insulation Resistance (MΩ) | Climatic Test Category | Operational Life (hours) | Failure Rate (fit) |
| 0.047 to 8.0 | 700, 850, 1000, 1250, 1700, 2000, 2500, 3000 | 420, 450, 600, 650, 700 | ±20%, ±10%, ±5% (others on request) | -55 to +105 | ≤ 6 x 10-4 (for C ≤ 1.0 µF) | Varies by capacitance and voltage (see detailed table in source) | C ≤ 0.33 µF: ≥ 1 x 105; C > 0.33 µF: ≥ 30,000 sec (MΩ×µF) | 55/100/56 (IEC) | ≥ 300,000 | ≤ 1 (at 0.5 x Ur and 40°C) |
Part Numbering and Dimensions (Examples)
| Capacitance (µF) | Rated Voltage (VDC/VAC*) | Dimensions (W x H x L in mm) | Example Part Number Prefix |
| 0.22 | 700 VDC / 420 VAC | 11 x 21 x 31.5 | SNMPO132206B |
| 0.33 | 700 VDC / 420 VAC | 15 x 26 x 31.5 | SNMPM033306F |
| 1.0 | 700 VDC / 420 VAC | 17 x 29 x 31.5 | SNMPK041006G |
| 0.1 | 1250 VDC / 600 VAC | 11 x 21 x 31.5 | SNMPTA31006B |
| 0.47 | 1700 VDC / 650 VAC | 19 x 32 x 41.5 | SNMPTA34707F |
| 1.0 | 2000 VDC / 700 VAC | 20 x 39.5 x 41.5 | SNMPU041007F |
| 0.047 | 2500 VDC / 700 VAC | 11 x 21 x 31.5 | SNMPV024706B |
| 0.1 | 3000 VDC / 700 VAC | 15 x 26 x 31.5 | SNMPW031006F |
*AC voltages: f ≤ 1000 Hz; 1.4 x Urms + UDC ≤ Ur. Dims. in mm. Ionisation inception level in isolated cases may be lower than admissible rated AC voltage.
Part number completion: Version codes see page 122. Tolerance: 20 % = M, 10 % = K, 5 % = J. Packing: bulk = S. Pin length: 6-2 = SD, none = 00 (for plate versions).
Mounting Recommendation: Avoid excessive mechanical strain. For plate versions, limit screw torque to max. 5 Nm.
For further details and graphs, please refer to Technical Information. Packing units at the end of the catalogue. Packing quantities may vary depending on the plate version.
2411041625_WIMA-SNMPTA41508H3CMS00_C20585469.pdf
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High reliability WIMA SNMPTA41508H3CMS00 snubber mkp capacitor with solvent resistant flame retardant plastic case Images
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