# Songtian Electronics (STE)

> Guangdong Songtian Electronic Industrial Co., Ltd. (广东松田电子实业股份有限公司), also known as Songtian Electronics, 松田电子, Songtian and STE, develops and manufactures ceramic capacitors, film capacitors, varistors and thermistors in Shantou, Guangdong, China. Brand in use since 1995; company established in 2012.

- Products: 4 product lines (ceramic capacitors, film capacitors, varistors, thermistors), 55 series; SMD and automotive series are also listed separately.
- Part search and cross reference: https://www.songtian-ste.com/en/parts/ and https://www.songtian-ste.com/zh/parts/ look up 17,903 STE part numbers with series and datasheet links, and approval certificates where available, and compare part numbers from other manufacturers with STE series of the same product type.
- Product finder: https://www.songtian-ste.com/en/products/finder/ and https://www.songtian-ste.com/zh/products/finder/ filter 45 ceramic, film, varistor and NTC thermistor series by product type and key ratings (rated voltage, capacitance, varistor voltage, R25, B value). Filters are kept in the URL, e.g. https://www.songtian-ste.com/en/products/finder/?type=film&vac=275&cap=0.47u. Data: https://www.songtian-ste.com/data/series-facets.json.
- SMD series: part numbers and datasheets on request from STE engineers; the series pages list key ranges and approvals.
- Every page has a Markdown copy: add index.md to the page URL (for example https://www.songtian-ste.com/en/products/film-capacitors/mpx-x2/index.md); requests with Accept: text/markdown receive it at the page URL.
- Chinese: https://www.songtian-ste.com/zh/llms.txt

## Company

- [About STE](https://www.songtian-ste.com/en/company/): company profile, honors, milestones and the factory.
- Factory media: eight manufacturing photographs on https://www.songtian-ste.com/en/company/ and https://www.songtian-ste.com/zh/company/; the company film is on the home and company pages.
- [Quality](https://www.songtian-ste.com/en/quality/): ISO 9001 / IATF 16949 / ISO 14001 / ISO 45001 systems, UL 1449 & UL 60384-14 WTDP laboratories (701335-001), the CNAS L24638 testing center and the full laboratory test-capability matrix.
- [News](https://www.songtian-ste.com/en/news/): 44 stories on products, approvals, events and the company.
- [Contact](https://www.songtian-ste.com/en/contact/): inquiry@songtian.cn · Sales +86 138 0967 8584 · Songtian Science and Technology Park, Shantou Bonded Zone, Guangdong, China
- [electronica 2026](https://www.songtian-ste.com/en/electronica-2026/): Messe München, Munich, Germany, 10–13 November 2026, stand B6.281

## Product lines

- [Ceramic capacitors](https://www.songtian-ste.com/en/products/ceramic-capacitors/): Safety, medium/high-voltage and SMD ceramic capacitors · 9 series · 4,582 part numbers
- [Film capacitors](https://www.songtian-ste.com/en/products/film-capacitors/): Damp-heat, capacitive-dropper, EMI suppression, polypropylene, polyester and DC-Link film capacitors · 24 series · 8,419 part numbers
- [Varistors](https://www.songtian-ste.com/en/products/metal-oxide-varistors/): Radial-leaded, medium/large-disc high-energy and SMD varistors · 7 series · 3,345 part numbers
- [Thermistors (NTC / PTC)](https://www.songtian-ste.com/en/products/thermistors/): NTC inrush current limiters, NTC thermistors for sensing and compensation, and PTC thermistors · 15 series · 1,557 part numbers
- [SMD components](https://www.songtian-ste.com/en/products/smd/): 7 series · 301 part numbers · also listed under their product lines
- [Automotive](https://www.songtian-ste.com/en/products/automotive/): 6 series · 396 part numbers · also listed under their product lines

## Ceramic capacitor series

- [CY Series Safety Certified Disc Ceramic Capacitors (Class X1/Y1)](https://www.songtian-ste.com/en/products/ceramic-capacitors/cy-y1/): Safety class: X1 / Y1 (IEC 60384-14); Rated voltage: X1 760 VAC · Y1 500 VAC · 1,500 VDC (Y5U/Y5V) · 83 part numbers
- [CD Series Safety Certified Disc Ceramic Capacitors (Class X1/Y1)](https://www.songtian-ste.com/en/products/ceramic-capacitors/cd-y1/): Safety class: X1 / Y1 (IEC 60384-14); Rated voltage: Up to 500 VAC · 1,500 VDC (Y5P/Y5U/Y5V) · 1,209 part numbers
- [CE Series Safety Certified Disc Ceramic Capacitors (Class X1/Y2)](https://www.songtian-ste.com/en/products/ceramic-capacitors/ce-y2/): Safety class: X1 / Y2 (IEC 60384-14); Rated voltage: X1 440 VAC · Y2 300 VAC · 1,500 VDC (Annex H) · 657 part numbers
- [CY-A · Automotive CY Series Safety Certified Ceramic Capacitors (Class X1/Y1, AEC-Q200)](https://www.songtian-ste.com/en/products/ceramic-capacitors/automotive-cy-y1/): Safety class: X1 760 VAC / Y1 500 VAC (IEC 60384-14); Automotive qualification: AEC-Q200 qualified part numbers available · 41 part numbers
- [CE-A · Automotive CE Series Safety Certified Ceramic Capacitors (Class X1/Y2, AEC-Q200)](https://www.songtian-ste.com/en/products/ceramic-capacitors/automotive-ce-y2/): Safety class: X1 440 VAC / Y2 300 VAC (IEC 60384-14); Automotive qualification: AEC-Q200 qualified part numbers available · 21 part numbers
- [HV / SV · HV/SV Series Medium & High Voltage Disc Ceramic Capacitors](https://www.songtian-ste.com/en/products/ceramic-capacitors/hv-sv/): Rated voltage: 500 VDC–15 kVDC; Capacitance: 100 pF–100,000 pF · 2,293 part numbers
- [SMD-X1Y1 Series Safety Certified SMD Ceramic Capacitors (Class X1/Y1)](https://www.songtian-ste.com/en/products/ceramic-capacitors/smd-x1y1/): Safety class: X1 / Y1 (IEC 60384-14); Rated voltage: X1 760 VAC · Y1 500 VAC · Part numbers and datasheets on request
- [SMC-X1Y2 Series Safety Certified SMD Ceramic Capacitors (Class X1/Y2)](https://www.songtian-ste.com/en/products/ceramic-capacitors/smc-x1y2/): Safety class: X1 / Y2 (IEC 60384-14); Rated voltage: X1 440 VAC · Y2 300 VAC · Part numbers and datasheets on request
- [SMD-DC Series Medium & High Voltage SMD Ceramic Capacitors](https://www.songtian-ste.com/en/products/ceramic-capacitors/smd-dc/): Rated voltage: 1 / 2 / 3 kVDC; Capacitance: 10–4,700 pF · Part numbers and datasheets on request

## Film capacitor series

- [MPX/X2-THB Series Metallized Polypropylene Film Interference Suppression Capacitors (Class X2, THB)](https://www.songtian-ste.com/en/products/film-capacitors/mpx-x2-thb/): Safety class: X2, across-the-line; THB test: 85 °C / 85% RH · 240 VAC · 500 h · 288 part numbers
- [MPK/X1-THB Series Metallized Polypropylene Film Interference Suppression Capacitors (Class X1, THB)](https://www.songtian-ste.com/en/products/film-capacitors/mpk-x1-thb/): Safety class: X1, across-the-line; THB test: 85 °C / 85% RH · 240 VAC · 500 h · 4 part numbers
- [MPY/Y2-THB Series Metallized Polypropylene Film Interference Suppression Capacitors (Class Y2, THB)](https://www.songtian-ste.com/en/products/film-capacitors/mpy-y2-thb/): Safety class: Y2, line-to-earth; THB test: 85 °C / 85% RH · 240 VAC · 500 h · 8 part numbers
- [CBB23B-THB Series Box-Type Metallized Polypropylene Film Capacitors (THB)](https://www.songtian-ste.com/en/products/film-capacitors/cbb23b-thb/): Humidity type: 85 °C / 85% RH (double-85); Rated voltage: 350 / 400 VAC · part-number list on request
- [MPB/CBB21B-THB Series Box-Type Metallized Polypropylene Film Capacitors (THB)](https://www.songtian-ste.com/en/products/film-capacitors/mpb-cbb21b-thb/): Humidity type: 85 °C / 85% RH (double-85); Rated voltage: 100 / 220 / 275 VAC · 52 part numbers
- [MPX/X2 Series Metallized Polypropylene Film Interference Suppression Capacitors (Class X2)](https://www.songtian-ste.com/en/products/film-capacitors/mpx-x2/): Safety class: X2, across-the-line; Rated voltage: 275 / 305 / 310 / 330 / 350 VAC · 2,714 part numbers
- [MPK/X1 Series Metallized Polypropylene Film Interference Suppression Capacitors (Class X1)](https://www.songtian-ste.com/en/products/film-capacitors/mpk-x1/): Safety class: X1, across-the-line; Rated voltage: 330 / 440 / 480 / 500 / 530 VAC · 153 part numbers
- [MPY/Y2 Series Metallized Polypropylene Film Interference Suppression Capacitors (Class Y2)](https://www.songtian-ste.com/en/products/film-capacitors/mpy-y2/): Safety class: Y2, line-to-earth; Rated voltage: 250 / 275 / 300 / 350 VAC · 113 part numbers
- [MPX/X2-A · Automotive MPX/X2 Series Metallized Polypropylene Film Interference Suppression Capacitors (Class X2, AEC-Q200)](https://www.songtian-ste.com/en/products/film-capacitors/automotive-mpx-x2/): Safety class: X2, across-the-line; Automotive qualification: AEC-Q200 Rev E qualified part numbers available · 282 part numbers
- [MPK/X1-A · Automotive MPK/X1 Series Metallized Polypropylene Film Interference Suppression Capacitors (Class X1, AEC-Q200)](https://www.songtian-ste.com/en/products/film-capacitors/automotive-mpk-x1/): Safety class: X1, across-the-line; Automotive qualification: AEC-Q200 Rev E qualified part numbers available · 5 part numbers
- [MPY/Y2-A · Automotive MPY/Y2 Series Metallized Polypropylene Film Interference Suppression Capacitors (Class Y2, AEC-Q200)](https://www.songtian-ste.com/en/products/film-capacitors/automotive-mpy-y2/): Safety class: Y2, line-to-earth; Automotive qualification: AEC-Q200 Rev E qualified part numbers available · 26 part numbers
- [MPB/CBB21B Series Box-Type Metallized Polypropylene Film Capacitors](https://www.songtian-ste.com/en/products/film-capacitors/mpb-cbb21b/): Rated voltage: 100 / 250 / 400 / 630 VDC; Capacitance: 0.01–10 µF · 668 part numbers
- [CBB23B Series High-Voltage Box-Type Metallized Polypropylene Film Capacitors](https://www.songtian-ste.com/en/products/film-capacitors/cbb23b/): Rated voltage: 400–900 VAC / 1,000–2,000 VDC; Capacitance: 1–100 nF · 65 part numbers
- [PPSB/CBB81B Series High-Voltage Box-Type Metallized Polypropylene Film Capacitors](https://www.songtian-ste.com/en/products/film-capacitors/cbb81b/): Rated voltage: 1,000–2,000 VDC; Capacitance: 0.01–0.047 µF · part-number list on request
- [MMKP82/CBB82B Series Double-Sided Metallized Polypropylene Film Capacitors (Box-Type)](https://www.songtian-ste.com/en/products/film-capacitors/cbb82b/): Rated voltage: 400–900 VAC / 1,000–2,000 VDC; Capacitance: 1–100 nF · 287 part numbers
- [PPN/CBB13 Series Non-Inductive Polypropylene Film Capacitors](https://www.songtian-ste.com/en/products/film-capacitors/cbb13/): Rated voltage: 400 / 630 / 1,000 VDC; Capacitance: 1–47 nF · 74 part numbers
- [MPP/CBB21 Series Metallized Polypropylene Film Capacitors](https://www.songtian-ste.com/en/products/film-capacitors/cbb21/): Rated voltage: 100 / 250 / 400 / 630 VDC; Capacitance: 0.01–3.3 µF · 2,133 part numbers
- [CBB23 Series Dipped Metallized Polypropylene Film Capacitors](https://www.songtian-ste.com/en/products/film-capacitors/cbb23-dipped/): Rated voltage: 1,000–1,600 VDC; Capacitance: 0.001–1.0 µF · part-number list on request
- [PPS/CBB81 Series High-Voltage Metallized Polypropylene Film Capacitors](https://www.songtian-ste.com/en/products/film-capacitors/cbb81/): Rated voltage: 1,000 / 1,250 / 1,600 / 2,000 VDC; Capacitance: 1–33 nF · 232 part numbers
- [MEB/CL21B Series Box-Type Metallized Polyester Film Capacitors](https://www.songtian-ste.com/en/products/film-capacitors/cl21b/): Rated voltage: 100 / 250 / 400 / 630 VDC; Capacitance: 10 nF–2.2 µF · 129 part numbers
- [MEMB/CL23 Series Miniature Metallized Polyester Film Capacitors](https://www.songtian-ste.com/en/products/film-capacitors/cl23/): Rated voltage: 63 / 100 / 250 / 400 / 630 VDC; Capacitance: 1 nF–1 µF · 112 part numbers
- [MEF/CL21 Series Metallized Polyester Film Capacitors](https://www.songtian-ste.com/en/products/film-capacitors/cl21/): Rated voltage: 100 / 250 / 400 / 630 VDC; Capacitance: 10 nF–10 µF · 788 part numbers
- [MEF/CL21X Series Compact Metallized Polyester Film Capacitors](https://www.songtian-ste.com/en/products/film-capacitors/mef-cl21x/): Rated voltage: 50 / 63 / 100 VDC; Capacitance: 1 nF–1 µF · 266 part numbers
- [MC3D Series Metallized Polypropylene DC-Link Film Capacitors](https://www.songtian-ste.com/en/products/film-capacitors/mc3d-dc-link/): Rated voltage: 500–1,200 VDC; Capacitance: 2–180 µF · 20 part numbers

## Varistor series

- [S Series Standard Radial-Leaded Metal-Oxide Varistors](https://www.songtian-ste.com/en/products/metal-oxide-varistors/s-standard/): Nominal varistor voltage: 18–1,100 V; Max. peak current (8/20 µs): 100–6,500 A · 1,409 part numbers
- [Z Series High-Energy Radial-Leaded Metal-Oxide Varistors](https://www.songtian-ste.com/en/products/metal-oxide-varistors/z-high-energy/): Nominal varistor voltage: 18–1,200 V; Max. peak current (8/20 µs): 250–18,000 A · 1,259 part numbers
- [Q Series 6kV/3kA Radial-Leaded Metal-Oxide Varistors](https://www.songtian-ste.com/en/products/metal-oxide-varistors/q-annex-q/): Nominal varistor voltage: 82–1,100 V; Max. peak current (8/20 µs): 3,500–10,000 A · 656 part numbers
- [Q-A · Automotive Q Series 6kV/3kA Radial-Leaded Metal-Oxide Varistors (AEC-Q200)](https://www.songtian-ste.com/en/products/metal-oxide-varistors/automotive-q-mov/): Automotive qualification: AEC-Q200 qualified part numbers available; Nominal varistor voltage: 82–1,000 V · 21 part numbers
- [D Series Large-Disc High-Energy Metal-Oxide Varistors](https://www.songtian-ste.com/en/products/metal-oxide-varistors/d-high-energy/): Nominal varistor voltage V1mA: 200–1,800 V; Disc size: 32–53 mm · part-number list on request
- [R Series High-Energy Metal-Oxide Varistors](https://www.songtian-ste.com/en/products/metal-oxide-varistors/r-high-energy/): Nominal varistor voltage V1mA: 200–1,800 V; Disc size: 10–34 mm · part-number list on request
- [SMD-MOV Surface-Mount Metal-Oxide Varistors](https://www.songtian-ste.com/en/products/smd-varistors/smd-mov/): Nominal code range: 201K–821K; Case size: 3225 / 4032 · Part numbers and datasheets on request

## Thermistor series

- [NTC-PS · PS Series NTC Inrush Current Limiters](https://www.songtian-ste.com/en/products/ntc-thermistors/power-ps/): Resistance R25: 0.7–400 Ω; Max. steady-state current (25 °C): 0.1–12 A · 1,044 part numbers
- [NTC-PP · PP Series NTC Inrush Current Limiters](https://www.songtian-ste.com/en/products/ntc-thermistors/power-pp/): Resistance R25: 2.5–200 Ω; Max. steady-state current (25 °C): 0.2–5.0 A · 508 part numbers
- [SMD-NTC (Power) · SMD NTC Inrush Current Limiters](https://www.songtian-ste.com/en/products/smd-thermistors/smd-power/): R25 range: 1.5–200 Ω; Max. steady-state current: 1.0–5.0 A · Part numbers and datasheets on request
- [SMD Sensing NTC · SMD NTC Thermistors for Temperature Measurement](https://www.songtian-ste.com/en/products/smd-thermistors/smd-sensing/): R25: 1 kΩ–1.3 MΩ; B25/50: 3,380–4,500 K · Part numbers and datasheets on request
- [MF51 Special NTC Temperature Sensors for Electronic Thermometers](https://www.songtian-ste.com/en/products/ntc-thermistors/mf51-electronic-thermometer/): Resistance: 0.2–1,000 kΩ; B25/50 range: 3,270–4,500 K · part-number list on request
- [MF51 Series Glass-Encapsulated NTC Thermistors](https://www.songtian-ste.com/en/products/ntc-thermistors/mf51/): Operating temperature: −20 °C to +250 °C; Thermal time constant, static air: 2–11 s · part-number list on request
- [MF52 Series Bead-Type Precision NTC Temperature Sensors](https://www.songtian-ste.com/en/products/ntc-thermistors/mf52/): R25: 10 / 50 / 100 kΩ; B25/50: 3,380 K / 3,950 K · part-number list on request
- [MF58 Series Glass-Encapsulated NTC Thermistors (Diode Type)](https://www.songtian-ste.com/en/products/ntc-thermistors/mf58/): R25: 0.1 kΩ–3.78 MΩ; Operating temperature: −55 °C to +250 °C · part-number list on request
- [MF59 Series Glass-Encapsulated Chip NTC Thermistors](https://www.songtian-ste.com/en/products/ntc-thermistors/mf59/): R25: 0.1–100 kΩ; Operating temperature: −55 °C to +220 °C · part-number list on request
- [CWF Series Precision NTC Temperature Sensors](https://www.songtian-ste.com/en/products/ntc-thermistors/cwf/): R25: 0.1 kΩ–1 MΩ; B25/50: 3,100–4,500 K (11 families) · part-number list on request
- [MF11 Series NTC Thermistors for Temperature Compensation](https://www.songtian-ste.com/en/products/ntc-thermistors/mf11/): R25: 5 Ω–500 kΩ; B25/50: 2,600–4,750 K · part-number list on request
- [MZ11 Series PTC Thermistors for Overload Protection](https://www.songtian-ste.com/en/products/ptc-thermistors/mz11/): Rated voltage: 65–330 VAC; Resistance: 1–500 Ω · part-number list on request
- [MZ13 Series PTC Thermistors for Overcurrent Protection](https://www.songtian-ste.com/en/products/ptc-thermistors/mz13/): Rated voltage: 260–700 VAC; Resistance: 10–1,000 Ω · part-number list on request
- [MZB Series PTC Thermistors for Overload Protection](https://www.songtian-ste.com/en/products/ptc-thermistors/mzb/): Rated voltage: 65–330 VAC; Resistance: 8–500 Ω · part-number list on request
- [SMD-PTC · SMD PTC Thermistors for Overcurrent Protection](https://www.songtian-ste.com/en/products/smd-thermistors/smd-ptc/): Rated voltage: 260–500 VAC; Resistance: 10–5,000 Ω · Part numbers and datasheets on request

## Data files

- [catalog.json](https://www.songtian-ste.com/catalog.json): product tree, every series with summary, key specs, approvals and page URLs, and the news (JSON)
- [STE part numbers](https://www.songtian-ste.com/data/part-numbers-v1.json): 17,903 STE part numbers with series, datasheet and certificate links (JSON)
- [Product finder data](https://www.songtian-ste.com/data/series-facets.json): product types, filters and the ranges of each series (JSON)
- [Series part tables](https://www.songtian-ste.com/data/parts/mpx-x2.json): one file for each of 33 series at /data/parts/<series>.json (JSON)
- [Datasheets and certificates](https://www.songtian-ste.com/data/product-source-documents.json): 86 PDF documents with title, type, language and edition (JSON)
- [Sitemap](https://www.songtian-ste.com/sitemap.xml): pages, news and documents
- [llms-full.txt](https://www.songtian-ste.com/llms-full.txt): every series page in Markdown

## Tools

- [AI cross reference](https://www.songtian-ste.com/en/parts/): enter an STE part number or one from another manufacturer to see STE series, datasheets and the differences item by item.
- [Product finder](https://www.songtian-ste.com/en/products/finder/): filter series by product type and key ratings.
- Ask STE: every page has an AI Assistant for product selection, ratings, approvals and cross reference. Adding ?ask=<question> to any page URL opens the chat with that question ready to send, e.g. https://www.songtian-ste.com/en/parts/?ask=Can%20STE%20replace%20a%20TDK%20B32922C3104M%3F or https://www.songtian-ste.com/zh/?ask=MPX%20X2%20系列有哪些认证%3F.

## Optional

- [Terms of use](https://www.songtian-ste.com/en/terms/)
- [Legal notice](https://www.songtian-ste.com/en/legal-notice/)