# Automotive MPX/X2 Series Metallized Polypropylene Film Interference Suppression Capacitors (Class X2, AEC-Q200)

> Automotive boxed metallized polypropylene film capacitors, Class X2, for across-the-line EMI suppression. AEC-Q200 Rev E qualified part numbers available; 275–350 VAC; 1 nF–10 µF.

- Series code: MPX/X2-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: cRUus, VDE, ENEC10, CQC, KC · AEC-Q200 qualified part numbers available
- Part numbers: 282 · [part list (JSON)](https://www.songtian-ste.com/data/parts/automotive-mpx-x2.json)
- Page: https://www.songtian-ste.com/en/products/film-capacitors/automotive-mpx-x2/
- Chinese version: https://www.songtian-ste.com/zh/products/film-capacitors/automotive-mpx-x2/
- [Ask AI about this series](https://www.songtian-ste.com/en/products/film-capacitors/automotive-mpx-x2/?ask=Help%20me%20choose%20a%20part%20from%20the%20STE%20MPX%2FX2-A%20series.)

## Key specifications

| Parameter | Value |
| --- | --- |
| Safety class | X2, across-the-line |
| Automotive qualification | AEC-Q200 Rev E qualified part numbers available |
| Rated voltage | 275 / 305 / 310 / 330 / 350 VAC |
| Capacitance | 0.001–10 µF |
| Temperature cycling | 1,000 cycles, −55 °C to +110 °C |
| Climatic category | 40/110/56 |

## Engineering details

### Overview

Automotive boxed metallized polypropylene film capacitors for across-the-line (L–N) EMI suppression, Class X2 to IEC 60384-14. AEC-Q200 Rev E qualified part numbers available; temperature cycling 1,000 cycles, −55 °C to +110 °C. Rated 275, 305, 310, 330 and 350 VAC; 1 nF–10 µF; tolerance ±10%. Climatic category 40/110/56. Lead pitch 7.5–37.5 mm.

#### Series features

- Class X2 metallized polypropylene construction for differential-mode (L–N) mains suppression
- Rated 275, 305, 310, 330 and 350 VAC; 1 nF–10 µF
- AEC-Q200 Rev E qualified part numbers available; 1,000 temperature cycles from −55 °C to +110 °C
- UL, VDE/ENEC, CQC and KC safety approvals
- 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
- AC input filtering in EV charging, industrial drives and vehicle-connected power conversion
- Automotive-adjacent equipment in harsh environments (select AEC-Q200 qualified part numbers and validate against the mission profile)

### Specifications

|   |   |
| --- | --- |
| Product role | Automotive Class X2 across-the-line (L–N) interference-suppression capacitor |
| Construction | Boxed metallized polypropylene film |
| Safety function | Class X2 to IEC 60384-14 for differential-mode mains suppression · 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 | 40/110/56 (lower category temperature −40 °C; −55 °C is a temperature-cycling test condition) |
| Operating temperature | Upper category temperature +110 °C |
| Rated AC voltages | 275 · 305 · 310 · 330 · 350 VAC |
| Capacitance range | 0.001–10 µF; available values depend on rated voltage and pitch |
| Capacitance tolerance | ±10% (K) |
| 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 |
| UL approval | UL 60384-14 · E208107 · 0.001–10 µF, 275–350 VAC |
| VDE approval | EN 60384-14:2017 · 40034679 · 0.001–10 µF, 275–350 VAC |
| CQC approval | GB/T 6346.14-2023 · CQC19001213200 · 0.001–10 µF, 275–350 VAC |
| KC approval | K 60384 · SU03031-12001C / 12002C / 12003D / 12004D / 23001 / 23002, by capacitance band from ≤0.1 µF to 4.7–10 µF |
| Lead pitch | 7.5 · 10 · 12.5 · 15 · 22.5 · 27.5 · 37.5 mm |
| Pitch codes | N 10 · Q 15 · T 22.5 · V 27.5 mm; 7.5, 12.5 and 37.5 mm codes on request |
| Automotive suffix | G in the last position of the part number = automotive product |
| Voltage codes | P2 275 · Q2 305 · Q3 310 · R1 330 · R2 350 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 | S yellow · E gray |
| Body dimensions | W 10–42.5 · H 9–50 · T 4–35 mm; nominal dimensions ±0.5 mm |
| Lead and pitch tolerance | P ±0.5 mm · lead diameter ±0.05 mm |
| Lead diameter | Ø0.6 mm at 7.5 / 10 / 12.5 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 39.0 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 |
| 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 · biased 85 °C / 85% RH humidity data · impulse and self-ignition test 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 / tolerance | Lead / land pattern | Notes |
| --- | --- | --- | --- | --- | --- |
| 10 mm · N | W 13 · H 9–15.5 · T 4–8 mm | 275–350 VAC · 0.001–0.15 µF | Metallized polypropylene · K ±10% | P 10 ±0.5 · Ø0.6 ±0.05 mm | Compact case. |
| 15 mm · Q | W 18 · H 11–20 · T 5–11 mm | 275–350 VAC · 0.01–0.56 µF | Metallized polypropylene · K ±10% | P 15 ±0.5 · Ø0.8 ±0.05 mm | Main pitch for mid-range values. |
| 22.5 mm · T | W 26.5 · H 16–22 · T 7–13 mm | 275–350 VAC · 0.15–0.82 µF | Metallized polypropylene · K ±10% | P 22.5 ±0.5 · Ø0.8 ±0.05 mm | Mid-to-high capacitance values. |
| 27.5 mm · V | W 31–32 · H 20–37 · T 11–22 mm | 275–310 VAC: 0.47–3.9 µF · 330/350 VAC: to 3.3 µF | Metallized polypropylene · K ±10% | P 27.5 ±0.5 · Ø0.8 ±0.05 mm | High capacitance values; the maximum value is lower at 330 and 350 VAC. |

### Selection guide

Define the safety position and the automotive mission profile first. Then specify one G-suffix part number whose AEC-Q200 report, safety approvals, voltage, capacitance, body, current and thermal limits, packing and process all match the application.

1. **Confirm the X2 circuit position**
   Use only line to line (across the line) where Class X2 meets the equipment standard, nominal voltage, installation category and surge environment. Do not use this series as a Y capacitor or 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. **Set voltage, capacitance and mission profile**
   Select the voltage, capacitance and body, and model AC frequency, harmonics, repetitive pulses, hot spot, ambient temperature and humidity, duty cycle, vibration and required lifetime. dV/dt, current and thermal limits on request.
4. **Specify part number, approvals and construction**
   Specify the complete part number, including the G suffix, marking, approved construction, dimensions, lead form, packing and material codes.
5. **Validate the assembly and end equipment**
   Validate the PP/PE soldering limits, board profile, hand rework, cleaning and coating, vibration, biased humidity, endurance, surge and impulse, and end-of-life behavior in the final enclosure and safety file.

### Approvals & reliability

#### Approvals & qualifications

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

| Agency | Standard | Certificate | Scope |
| --- | --- | --- | --- |
| cRUus UL | UL 60384-14 | E208107 | 0.001–10 µF, 275–350 VAC. |
| VDE, ENEC10 VDE / ENEC10 | EN 60384-14:2017 | 40034679 | 0.001–10 µF, 275–350 VAC. |
| CQC CQC | GB/T 6346.14-2023 | CQC19001213200 | 0.001–10 µF, 275–350 VAC. |
| KC KC | K 60384 | SU03031 family | Six certificates divide the range up to 10 µF by capacitance band. |

Each certificate covers the types and ratings listed on it.

#### Reliability tests

Initial electrical limits, AEC-Q200 Rev E qualification and a temperature-cycling test (1,000 cycles, −55 °C to +110 °C) 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 |

### Design notes

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

AEC-Q200 qualification does not transfer to every similar MPX part. Tie the BOM part number to the qualification report, similarity rationale, manufacturing site, construction, safety approvals and change record.

#### Keep X2 in the correct safety position

Use across line conductors for differential-mode suppression where the equipment standard accepts X2. It is not suitable as a Y capacitor, line-to-earth component or reinforced-insulation barrier.

#### AEC-Q200 and IEC approval are separate

AEC-Q200 stress qualification does not replace IEC 60384-14 safety approval, and an X2 certificate does not cover the automotive mission profile. Check both scopes for the selected part.

#### Design for the actual electrical stress

Rated VAC alone does not establish dV/dt, RMS or peak current, harmonic heating, repetitive surge, hot spot or service life. Obtain part-specific curves and validate the final enclosure across ambient temperature, humidity and duty cycle.

#### Mechanics and assembly

Check the pitch code, tape geometry, lead form and PP/PE soldering limits of the selected part number. Support large, heavy parts against vibration. Do not reflow-solder; validate soldering, cleaning, coating, storage and traceability.

### Part numbering

Example ordering code. Not every combination is available.

`X2 · Q3 · 104 · K · N · 1 · B0 · 130 · 120 · 060 · E · S · G`

| Code | Meaning |
| --- | --- |
| X2 | Class X2 across-the-line film-capacitor series |
| Q3 | Rated voltage: Q3 = 310 VAC; P2 = 275, Q2 = 305, R1 = 330, R2 = 350 VAC |
| 104 | Capacitance code: 104 = 100 nF |
| K | Capacitance tolerance: K = ±10% |
| N | Lead pitch: N = 10 mm; Q = 15, T = 22.5, V = 27.5 mm; 7.5, 12.5 and 37.5 mm codes on request |
| 1 | Lead form: 1 = long straight; 2 = inner-bent, 5 = straight taped, 6 = bent taped |
| B0 | Lead length: B0 = 20.0 mm; codes A0–C9 or numeric |
| 130 | Body width: 130 = 13.0 mm |
| 120 | Body height: 120 = 12.0 mm |
| 060 | Body thickness: 060 = 6.0 mm |
| E | Environmental: E = RoHS; F = RoHS + halogen-free |
| S | Case color: S = yellow; E = gray |
| G | G = automotive product |

## Datasheets & approval documents

- [Datasheet: Automotive MPX/X2 series box-type metallized polypropylene (PP) film EMI suppression capacitors, Class X2 — 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%28MPX%20X2%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 · 369 KB

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