GH 1.25mm 180° Vertical SMD Wafer Connector (A1257)
Pins: 2/3/4/5/6/7/12P | Wire-to-Board Male Pin Connector
Product Highlights
- Flame Retardant & Halogen-Free: Housing UL94V-0, zero halogen, safe for industrial & home appliance
- Anti-Unmating Lock Design: Reinforced latch structure, prevents accidental disconnection under vibration for industrial & light-vehicle environments
- Full Set Supply: Male wafer + matching housing + crimp terminals, one-stop sourcing
- 180° Vertical SMT: Standard SMT reflow compatible, compact 1.25mm pitch high-density layout
- Polarized keying: Anti-mis-mating, avoid reverse insertion damage
Technical Specifications
| Category |
Item |
Spec |
| Electrical |
Rated Current |
1A per pin |
| Rated Voltage |
125V AC/DC |
| Contact Resistance |
≤30mΩ |
| Insulation Resistance |
≥100MΩ |
| Withstanding Voltage |
500V AC for 1 min |
| Mechanical |
Mating Cycles |
≥10 cycles |
| Vibration Resistance |
Meet IEC 60068-2-6, anti-unmating under continuous vibration |
| Insertion / Extraction Force |
Low insertion, positive retention latch |
| Material & Plating |
Housing |
LCP, UL94V-0, Halogen-Free |
| Contact Pin |
Phosphor Bronze |
| Plating |
Tin over Nickel (Au plating optional) |
| Environment |
Operating Temp |
-25℃ ~ +85℃ |
| Storage Temp |
-40℃ ~ +100℃ |
| Soldering Guide |
Reflow Temp |
Max 260℃, 10s peak; standard lead-free SMT process |
Cross Reference / Compatible Replacement
Direct drop-in replacement for international series, same PCB footprint:
- JST: GH series A1257
- Molex: 51021 / 53047 series 1.25mm wafer
- TE (AMP): 1.25mm pitch wire to board equivalent series
Note: Verify drawing & retention requirement before formal design freeze
Product Features
- 180° vertical SMD mounting, pick & place friendly for high-speed SMT line
- Reinforced locking latch, solves vibration-induced unmating pain point
- Halogen free + UL94V-0 flame retardant, meets IEC environmental standard
- Polarized key feature, prevent reverse mating
- Available: 2P,3P,4P,5P,6P,7P,12P; custom pin count available
- High temperature resistant LCP plastic, no deformation during reflow soldering
Product Advantages
- Vibration Reliability Upgrade: Optimized latch geometry vs standard GH, targeted for industrial & vehicle vibration scenarios
- Full BOM Supply: Wafer, housing, terminals supplied together, no separate sourcing hassle
- Stable SMT Yield: Solder tail optimized for PCB pad, less bridging risk
- Cost competitive alternative: Pin-to-pin replace imported brands, shorten lead time
- Compliance ready: RoHS, halogen free, UL94V-0 documented
Application
Industrial controllers
Home appliances
Smart sensors
Light vehicle / automotive internal wiring
FFC flexible connection
LCD display module
IoT equipment
Battery pack signal harness
Packaging Method
- Bulk pack: Poly bag
- Tray pack: Plastic tray (for SMT high volume production)
- Tape & reel packing 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: ISO9001, RoHS, Halogen Free, UL94V-0
- Sample Policy: Free samples available, fast sample delivery
- MOQ: Low MOQ for standard pins; custom structure MOQ upon request
- Custom support: Custom pin number, gold plating, special housing color, drawing development
Customer Selection Guide
- Confirm pin count (2/3/4/5/6/7/12P) and mounting direction: 180° vertical SMD
- Check working environment: vibration-heavy application select this reinforced lock version
- Plating selection: Tin for general signal; Gold plating for long-life / high corrosion environment
- Reflow: Follow 260℃ max peak temperature, avoid overheating
- Must use matched housing + terminals for reliable locking performance
- Download 2D/3D drawing & pad layout from our technical library before PCB layout
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 carefully confirm them 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 packaging, there is no problem; we can put your logo or other information on the package. Just have to point out that it incurs an additional cost.
10. Q: What certificates do you have?
A: CE, CQC, UL, ISO9001, ISO14001, IATF16949, ISO45001, QC080000, etc.
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