# Automotive MPK/X1 Series Metallized Polypropylene Film Interference Suppression Capacitors (Class X1, AEC-Q200)

> Automotive boxed metallized polypropylene film capacitors, Class X1, for across-the-line EMI suppression. AEC-Q200 Rev E qualified part numbers available; 330–530 VAC; 1 nF–1 µF.

- Series code: MPK/X1-A
- Product line: [Film capacitors](https://www.songtian-ste.com/en/products/film-capacitors/) › EMI suppression capacitors (X1/X2/Y2)
- Also listed in: [Automotive](https://www.songtian-ste.com/en/products/automotive/)
- Approvals: UL, VDE, ENEC, CQC, CB · AEC-Q200 qualified part numbers available
- Part numbers: 5 · [part list (JSON)](https://www.songtian-ste.com/data/parts/automotive-mpk-x1.json)
- Page: https://www.songtian-ste.com/en/products/film-capacitors/automotive-mpk-x1/
- Chinese version: https://www.songtian-ste.com/zh/products/film-capacitors/automotive-mpk-x1/
- [Ask AI about this series](https://www.songtian-ste.com/en/products/film-capacitors/automotive-mpk-x1/?ask=Help%20me%20choose%20a%20part%20from%20the%20STE%20MPK%2FX1-A%20series.)

## Key specifications

| Parameter | Value |
| --- | --- |
| Safety class | X1, across-the-line |
| Automotive qualification | AEC-Q200 Rev E qualified part numbers available |
| Rated voltage | 330 / 440 / 480 / 500 / 530 VAC |
| Capacitance | 0.001–1.0 µF |
| Impulse test voltage | 4 kV (CR ≤1.0 µF) |
| Temperature cycling | 1,000 cycles, −55 °C to +110 °C |

## Engineering details

### Overview

Automotive boxed metallized polypropylene film capacitors for across-the-line (L–N) EMI suppression, Class X1 to IEC 60384-14 for higher impulse stress. AEC-Q200 Rev E qualified part numbers available; temperature cycling 1,000 cycles, −55 °C to +110 °C. Rated 330, 440, 480, 500 and 530 VAC; 1 nF–1 µF; tolerance ±10% or ±20%. Impulse test voltage 4 kV (CR ≤1.0 µF). Climatic category 40/110/56B.

#### Series features

- Class X1 metallized polypropylene construction for differential-mode mains suppression under higher impulse stress
- Rated 330, 440, 480, 500 and 530 VAC; 1 nF–1 µF
- AEC-Q200 Rev E qualified part numbers available; 1,000 temperature cycles from −55 °C to +110 °C
- Impulse test (4 kV, 24 pulses) and self-ignition test are specified
- Automotive parts carry the suffix G in the part number

#### Typical applications

- Across-the-line EMI suppression at the mains input of on-board chargers and vehicle-connected equipment
- Power-line filtering in automotive and industrial drives that require the Class X1 impulse category
- Differential-mode filtering in permanently connected equipment (within the certificate scope)
- Automotive-adjacent equipment in harsh environments (select AEC-Q200 qualified part numbers and validate humidity, current, thermal and mechanical load)

### Specifications

|   |   |
| --- | --- |
| Product role | Automotive Class X1 across-the-line (L–N) interference-suppression capacitor |
| Construction | Boxed metallized polypropylene film |
| Safety function | Class X1 to IEC 60384-14 for the higher-impulse across-the-line category · not for line-to-earth (Y) or reinforced-insulation positions |
| Automotive qualification | AEC-Q200 Rev E qualified part numbers available; qualification report and temperature grade on request |
| Temperature cycling | 1,000 cycles, −55 °C to +110 °C |
| Climatic category | 40/110/56B (lower category temperature −40 °C; −55 °C is a temperature-cycling test condition) |
| Operating temperature | Upper category temperature +110 °C |
| Rated AC voltages | 330 · 440 · 480 · 500 · 530 VAC |
| Capacitance range | 0.001–1.0 µF; available values depend on rated voltage and pitch |
| Capacitance tolerance | ±10% (K) · ±20% (M) |
| Dissipation factor | tan δ ≤0.1% |
| Insulation resistance, CR ≤0.33 µF | ≥15,000 MΩ |
| Insulation resistance, CR >0.33 µF | Time constant R × C ≥5,000 s |
| IR measurement conditions | 20 °C · 100 VDC · 60 s |
| Voltage proof, terminal to terminal | 4.3 × UR DC, 5 s |
| Voltage proof, terminals to case | 2 × UR + 1,500 VAC, min. 2,000 VAC |
| Impulse test voltage | 4 kVDC for CR ≤1.0 µF; a test condition, not a continuous or repetitive rating |
| Impulse sequence | 24 pulses · 9 s charge / 2 s discharge cycle |
| Self-ignition test | U~ = UR · Ui = 4.0 kV · 20 discharges of the energy-storage capacitor per sample · 5 s interval |
| UL / cUL approval | UL 60384-14 · E208107 · 0.001–1.0 µF at 330/440/480/500/530 VAC |
| VDE / ENEC approval | IEC/EN 60384-14:2013 + AMD1:2016 · 40054631 · 0.001–1.0 µF at five AC ratings |
| CQC approval | CQC22001337767 (issued 2022) |
| IECEE CB certificate | DE1-65967 · test report 288316-TL3-1 |
| Automotive suffix | G in the last position of the part number = automotive product |
| Voltage codes | R1 330 · S1 440 · S3 480 · H2 500 · K1 530 VAC |
| Lead-form codes | 1 long straight · 2 inner-bent · 5 straight taped · 6 bent taped |
| Environmental codes | E RoHS · F RoHS + halogen-free |
| Case-color codes | V blue · E gray |
| Body dimensions | W 10–41.5 · H 9–34 · T 4–22.5 mm; 37.5 mm dimensions: see part drawing |
| Lead and pitch tolerance | P ±0.5 mm · lead diameter ±0.05 mm |
| Lead diameter | Ø0.6 mm at 7.5 / 10 mm pitch · Ø0.8 mm at 15 / 22.5 / 27.5 mm · Ø1.0 mm at 37.5 mm |
| Lead forms | Long straight and inner-bent lead drawings in the datasheet; lead length coded from 3.0 to 29.0 mm |
| Taped lead spacing F | 7.5 / 10 / 15 / 22.5 mm; 5 mm on request |
| PP soldering limits (body temperature) | Preheat ≤110 °C · soldering ≤120 °C for ≤15 s |
| PE soldering limits (body temperature) | Preheat ≤125 °C · soldering ≤160 °C for ≤15 s |
| Wave-soldering profile (board) | Ambient to 115 °C max. in 30–130 s · rise to 260 °C max. in <1 s · peak region <10 s · cooling ≤5 °C/s |
| Reflow soldering | Not permitted; film shrinkage can degrade performance |
| Hand soldering | Tip ≤350 °C · ≤3 s · joint ≥2 mm from the encapsulation |
| Storage | ≤35 °C · ≤70% RH · ≤12 months in the unopened original packaging; avoid high temperature and humidity |
| Corrosive atmosphere | Hydrogen chloride, hydrogen sulfide and sulfur compounds can degrade terminal solderability |
| Humidity (THB) | No THB rating for this series |
| Further data on request | Metallization design and end-of-life behavior · continuous operating-temperature range and voltage derating · tan δ measurement conditions · duration and method of the terminals-to-case voltage proof · impulse and self-ignition test circuit, waveform, energy and post-test limits · biased 85/85 humidity data · ESR/impedance, RMS and peak current, dV/dt, hot-spot temperature, thermal resistance and lifetime · PPAP, traceability, production screening and change notification |

### Variants

Ranges by dielectric, package and lead style within this series.

| Variant | Body dimensions | Rated voltage / capacitance | Construction / class / tolerance | Lead / land pattern | Notes |
| --- | --- | --- | --- | --- | --- |
| N · 10 mm | W 13 · H 11–15 · T 5–8 mm | 330–530 VAC · 0.001–0.01 µF | Metallized polypropylene · X1 · K/M | P 10 ±0.5 · Ø0.6 ±0.05 mm | Compact case for low capacitance values. |
| Q · 15 mm | W 18 · H 11–19 · T 5–11 mm | 330–530 VAC · 0.01–0.068 µF | Metallized polypropylene · X1 · K/M | P 15 ±0.5 · Ø0.8 ±0.05 mm | Mid-range values. Availability on request. |
| T · 22.5 mm | W 26.5 · H 15–23 · T 6–13 mm | 330–530 VAC · 0.047–0.18 µF | Metallized polypropylene · X1 · K/M | P 22.5 ±0.5 · Ø0.8 ±0.05 mm | — |
| V · 27.5 mm | W 31–31.5 · H 20–28 · T 11–18 mm | 330–530 VAC · 0.1–0.33 µF | Metallized polypropylene · X1 · K/M | P 27.5 ±0.5 · Ø0.8 ±0.05 mm | — |

### Selection guide

Confirm Class X1 and define the actual mains and impulse stress first. Then specify one G-suffix part number whose AEC-Q200 report, safety approvals, voltage, capacitance, body, current and thermal limits, suffix meaning, packing and process all match the application.

1. **Confirm the X1 circuit position**
   Use across line conductors where the higher X1 impulse category and the equipment standard apply. It is not a Y capacitor, line-to-earth component or reinforced-insulation barrier.
2. **Confirm the automotive qualification**
   Request the AEC-Q200 Rev E qualification report for the selected part number, with qualified part numbers, temperature grade, manufacturing site, test lots and results, and the change and requalification record.
3. **Confirm values, dimensions and suffixes**
   Before design-in, request the drawing, suffix definition and qualification scope of the selected part number, in particular for 37.5 mm parts and part numbers with the suffix −02.
4. **Define electrical stress and lifetime**
   Coordinate AC frequency, X1 impulse environment, harmonics, repetitive pulses, hot spot, ambient temperature and humidity, duty cycle, vibration and life. dV/dt, current, thermal, THB and endurance data for the selected part number on request.
5. **Confirm approvals, mechanics and assembly**
   Check the G suffix, marking, safety certificates, body and lead drawing, packing and PP/PE construction of the selected part number. Validate soldering, cleaning and coating, vibration, storage and traceability in the final equipment.

### Approvals & reliability

#### Approvals & qualifications

Safety approvals: IEC 60384-14 (UL/cUL, VDE/ENEC, CQC, IECEE CB). Automotive qualification: AEC-Q200. Approval and AEC-Q200 coverage of individual G-suffix part numbers on request.

| Agency | Standard | Certificate | Scope |
| --- | --- | --- | --- |
| UL UL / cUL | UL 60384-14 | E208107 | MPK X1, 0.001–1.0 µF, 330–530 VAC. |
| VDE, ENEC VDE / ENEC | EN 60384-14:2013 + A1:2016 | 40054631 | MPK X1, five AC ratings, K/M, 40/110/56/B. No Annex H (DC) approval; no Annex I humidity grade. |
| IECEE CB IECEE CB | IEC 60384-14:2013 + AMD1:2016 | DE1-65967 | MPK X1, test report 288316-TL3-1. |

Each certificate covers the types and ratings listed on it.

#### Reliability tests

Initial electrical limits, AEC-Q200 Rev E qualification, temperature cycling (1,000 cycles, −55 °C to +110 °C), an impulse test (4 kV, 24 pulses) and a self-ignition test are specified. The qualification report and humidity, endurance, current and thermal data are available on request.

| Test | Condition | Acceptance |
| --- | --- | --- |
| Temperature cycling | 1,000 cycles, −55 °C to +110 °C | Dwell time, sample size and post-test ΔC, tan δ, IR and voltage-proof limits on request |
| Impulse and self-ignition tests | Impulse: 4 kVDC, 24 pulses. Self-ignition: Ui = 4.0 kV, 20 discharges per sample | Test circuit, energy and pass criteria on request |

### Design notes

#### Qualify the exact G-suffix part number

AEC-Q200 qualification is not transferred by the G suffix, the series name or a general MPK certificate. Tie every part number, including −02 versions, to the qualification report, similarity rationale, manufacturing site, construction, safety approvals and change record.

#### Keep X1 in the correct safety position

Use across line conductors where the equipment standard requires or permits the X1 impulse category. It is not a line-to-earth Y capacitor or reinforced-insulation barrier.

#### AEC-Q200, safety approval and THB are separate

AEC-Q200 qualification does not replace IEC 60384-14 approval, and a general certificate does not by itself cover a G-suffix construction. This series has no THB rating. Check the scope of each for the selected part.

#### Design for current, heat and actual surge duty

Rated VAC and the 4 kV impulse test do not define dV/dt, RMS or peak current, harmonic heating, repetitive surge, hot spot or life. Obtain part-specific curves and validate the final enclosure.

#### Mechanics and assembly

Check the −02 suffix, body and lead drawing, packing and PP/PE soldering limits of the selected part number. Do not reflow-solder; validate soldering, cleaning and coating, vibration of heavy parts, storage away from corrosive gases and production traceability.

### Part numbering

Example ordering code. Not every combination is available.

`X1 · S1 · 104 · K · Q · 1 · B0 · 180 · 120 · 060 · E · V · G`

| Code | Meaning |
| --- | --- |
| X1 | Class X1 across-the-line film-capacitor series |
| S1 | Rated voltage: S1 = 440 VAC; R1 = 330, S3 = 480, H2 = 500, K1 = 530 VAC |
| 104 | Capacitance code: 104 = 100 nF |
| K | Capacitance tolerance: K = ±10%; M = ±20% |
| Q | Lead pitch: Q = 15 mm; J = 7.5, N = 10, T = 22.5, V = 27.5, L = 37.5 mm |
| 1 | Lead form: 1 = long straight; 2 = inner-bent, 5 = straight taped, 6 = bent taped |
| B0 | Lead length: B0 = 20.0 mm (numeric, A and B codes) |
| 180 | Body width: 180 = 18.0 mm |
| 120 | Body height: 120 = 12.0 mm |
| 060 | Body thickness: 060 = 6.0 mm |
| E | Environmental: E = RoHS; F = RoHS + halogen-free |
| V | Case color: V = blue; E = gray |
| G | G = automotive product. Suffix −02: definition on request. |

## Datasheets & approval documents

- [Datasheet: Automotive MPK/X1 series box-type metallized polypropylene (PP) film EMI suppression capacitors, Class X1 — short-form datasheet (2024-02)](https://www.songtian-ste.com/documents/source-cn/%E8%BD%A6%E8%A7%84%E7%B3%BB%E5%88%97%E4%BA%A7%E5%93%81%E8%A7%84%E6%A0%BC%E4%B9%A6/%E8%BD%A6%E8%A7%84-%E7%9B%92%E5%BC%8F%E9%87%91%E5%B1%9E%E5%8C%96%E8%81%9A%E4%B8%99%E7%83%AF%E8%86%9C%E6%8A%97%E5%B9%B2%E6%89%B0%E7%94%B5%E5%AE%B9%E5%99%A8%28MPK%20X1%20%E8%BD%A6%E8%A7%84%E7%B3%BB%E5%88%97%29%E7%AE%80%E7%89%88%E8%A7%84%E6%A0%BC%E4%B9%A6-202402.pdf) — PDF · Chinese · 2024-02 · 333 KB
- [Certificate: MPK series Class X1 film capacitor safety approval certificates (2022-04)](https://www.songtian-ste.com/documents/source-cn/%E5%AE%89%E8%A7%84%E8%AE%A4%E8%AF%81%E8%AF%81%E4%B9%A6/3-X1%E8%96%84%E8%86%9C%E7%94%B5%E5%AE%B9%E5%99%A8%EF%BC%88MPK%EF%BC%89%E5%AE%89%E8%A7%84%E8%AE%A4%E8%AF%81%E8%AF%81%E4%B9%A6-%EF%BC%882022%E5%B9%B44%E6%9C%88%E7%89%88%E6%9C%AC%EF%BC%89.pdf) — PDF · Chinese · 2022-04 · 1.8 MB

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