Short Overview: 4.2mm pitch 5557/5569 double-row straight pin ATX power connector, LCP high-temp housing, UL94V-0, halogen-free. Anti-unmating buckle design for heavy-vibration industrial & automotive applications. Complete housing & terminal set available.
Product Highlights
✅ Flame Resistance & Eco Material: Housing LCP, UL94V-0 flame rating, Halogen-Free, meets industrial & home appliance environmental requirements
✅ Anti-Vibration Anti-Unmating Double Buckle: Reinforced double-row locking buckle, prevents accidental disconnection under continuous shock & vibration in industrial / vehicle harsh environments
✅ Full Matching Components: Complete set including plastic housing (shell) + crimp terminals, one-stop procurement
✅ High Temperature LCP Material: Stable performance during SMT soldering, withstands high working ambient temperatures
Technical Specifications
| Item |
Details |
| Pitch |
4.2 mm |
| Structure |
Double row, straight pin, buckle locking |
| Model |
5557 / 5569 series |
| Electrical Performance |
| Rated Current |
9A per circuit |
| Rated Voltage |
250V AC |
| Contact Resistance |
≤20mΩ |
| Insulation Resistance |
≥1000MΩ |
| Withstand Voltage |
1500V AC for 1min |
| Mechanical Performance |
| Insertion / Withdrawal Cycles |
≥1000 times |
| Locking Force |
Reinforced double buckle, anti-unmating under vibration |
| Contact Retention Force |
Meets IEC vibration & shock test standard |
| Material, Plating & Environment |
| Housing Material |
High-temperature LCP |
| Flame Class |
UL94V-0, Halogen-Free |
| Terminal Base Material |
Copper alloy |
| Plating |
Tin plating (gold plating optional) |
| Operating Temp |
-40℃ ~ +125℃ |
| Soldering Guide |
SMT soldering compatible; Reflow peak temp ≤260℃, max 10s |
Cross Reference / Alternative Replacement
Direct drop-in compatible replacement for internationally famous brands:
- JST: 5557 / 5569 series
- Molex: 3901 series
- TE (AMP): 4.2mm pitch ATX power series connectors
Note: Pin count needs to match when cross using.
Product Features
- 4.2mm standard pitch, double row straight pin layout, classic ATX power supply socket design
- Double buckle locking mechanism, avoids accidental unmating under vibration
- LCP high-temp plastic, stable at high temperatures in soldering & working environments
- UL94V-0 flame retardant, halogen-free, eco-compliant
- Complete housing + terminal solution, easy assembly
Product Advantages
- Anti-drop locking design: Solves the customer pain point of connector loosening & disconnection under vibration for industrial & on-board equipment
- High-temperature-resistant LCP, no deformation during reflow soldering
- Strict material control: UL94V-0 + Halogen-Free, satisfies safety audit for industrial, home appliance & partial automotive projects
- Pin-to-pin compatible with JST / Molex / TE, convenient BOM substitution without PCB redesign
- Factory-direct supply; supports custom pin count, plating & packaging
Application
- ATX PC power supply
- Industrial control equipment, servo power port
- Home appliances (air conditioner, inverter)
- Automotive auxiliary power modules
- Medical power equipment
- LED power driver & battery pack
Packaging Method
- Standard: Anti-static bag packing
- Optional: White / Neutral carton box packing. Custom packing label & barcodes available upon request.
Payment Method
EXW, FOB, CIF, CPT, T/T, L/C available
Lead Time
- Samples: 3 working days
- Mass order: 1–2 weeks
Factory Certificate & Custom Service
- Certifications: UL, RoHS, REACH, ISO9001
- MOQ: Low MOQ for standard items
- Sample Policy: Free samples available / Fast sample delivery. Custom service: Custom pin count, plating thickness, cable harness assembly, special packaging & marking.
Customer Selection Guide
- Confirm pin count before cross-reference replacement to match footprint
- For high vibration scenarios, choose double buckle locking version to prevent unmating
- For soldering process: confirm reflow temperature ≤260℃
- For automotive projects, request full material report & halogen certificate
- If gold plating is required, notify sales at the quotation stage
FAQ
1. Q: Do you have a catalogue? Can you send me the catalogue to check all your products?
A: Yes, you can contact us online or send an Email to get the catalogue.
2. Q: I can't find the product in your catalogue. Can you make this product for me?
A: Our catalogue shows most of our products, but not all. Just let us know what product you need, and how many you want. If we do not have it, we can also design and make a new mould to produce it. For your reference, making an ordinary mould will take about35-45 days.
3. Q: Can you provide a sample? Are these samples free?
A: Yes, we provide 5-10 pcs of connector free samples for testing. But you have to pay the shipping cost
4. Q: What about your delivery time?
A: Stock goods are delivered within 1 day; customized goods are delivered within 5-7days
5. Q: How to ship my order?
A: For small packages, send them by Express, such as DHL, FedEx, UPS, TNT, EMS. That's Door-to-Door service. For big packages, we can send them by Air or by sea. We use standard export cartons. We are responsible for any product damage caused during delivery.
6. Q: What kind of payment do you accept? Can I pay RMB?
A: Weaccept T/T(Wire transfer), Western Union, and PayPal. Please make sure that we can receive the same amount as the Invoice. And you can pay in RMB. No problem.
7. Q: How about your company's quality control
A: Strictly follow ISO9001. IQC, OQC, IPQC, and QA account for 10% of our staff. All of our products will be tested by CCD.
8. Q: I need your price list of all your products. Do you have a price list?
A: We do not have a price list of all of our products. Because we have so many items, it's impossible to list all prices, and prices change based on material costs and quantity. And you can give us a list of all of the items you need; we will confirm carefully one by one and give you a specification and price list
9. Q: Can you make customized products and customized packing?
A: Yes. We have made a lot of customized
products for our customers formerly (mainly wire harnesses). About customized packing, there is no problem; we can put your logo or other information on the package. Just have to point out that it incurs additional cost.
10. Q: What certificates do you have?
A: CE, CQC, UL, ISO9001, ISO14001, IATF16949, ISO45001, QC080000, etc.
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