1.25 Ultra‑Thin Horizontal Patch Fully Gold‑Plated Connector | WT125JW
Product Highlights
- 1.25mm pitch ultra‑low‑profile horizontal SMD female wafer, drop‑in replacement for Molex 51146 series
- Full gold‑plated contact for anti‑oxidation, stable signal under vibration & humid environment
- 2‑20 positions available, tape‑and‑reel packaging for high‑speed SMT assembly
- Polarized + friction‑lock anti‑mis‑mating design, prevents accidental disconnection
- RoHS / REACH compliant, high‑temperature UL94V‑0 housing for lead‑free reflow soldering
Technical Specifications
General Mechanical Parameters
| Item |
Specification |
| Pitch |
1.25 mm |
| Type |
Horizontal SMD Female Wafer (Wire‑to‑Board) |
| Pin Count |
2‑20 Positions |
| Row |
Single Row |
| Mating Orientation |
Horizontal / Right‑Angle to PCB |
| Mounting |
Surface‑Mount SMD, Tape & Reel packaging |
| Polarization |
Yes, anti‑mis‑insertion |
| Locking |
Friction lock for secure mating |
| Cross Reference |
Molex 51146 series |
Material & Electrical Characteristics
| Item |
Specification |
| Contact Material |
Phosphor Bronze |
| Contact Plating |
Full Gold‑plated over Nickel base |
| Housing Material |
High‑temp thermoplastic, UL94V‑0 |
| Rated Current |
1A per pin (AWG 28‑32) |
| Rated Voltage |
125V AC/DC |
| Max. Contact Resistance |
≤ 20 mΩ |
| Min. Insulation Resistance |
≥ 1000 MΩ |
| Withstanding Voltage |
500V AC / 1 min |
Environmental & Soldering Guide
| Item |
Specification |
| Operating Temperature |
-40 ℃ ~ +105 ℃Alibaba.co... |
| Storage Temperature |
-25 ℃ ~ +60 ℃ |
| Solder Profile |
Compliant with lead‑free SMT reflow (Peak 260 ℃ max) |
| Compliance |
RoHS, REACH |
| Note |
Do not apply mechanical stress during or after reflow soldering |
Product Features
- Ultra‑thin horizontal right‑angle SMD mounting, low board‑space occupation for slim device design
- Phosphor bronze contact base with full gold plating, low contact resistance, excellent anti‑corrosion & anti‑oxidation performance
- Polarized keying feature to avoid reverse insertion; built‑in friction lock ensures stable mating, anti‑drop under vibration shock
- Housing: high‑temperature‑resistant UL94V‑0 thermoplastic, compatible with standard lead‑free reflow soldering profile
- 2‑20 positions configurable; strictly matches Molex 51146 PCB footprint, direct drop‑in replacement without PCB modification
- Tape‑and‑reel carrier for automatic pick‑and‑place; custom pin counts & plating options available for OEM projects
Product Advantages
- Direct drop‑in replacement: 1:1 footprint compatible with Molex 51146, no PCB redesign required, shorten project cycle & BOM migration risk
- Full gold‑plated contact: Compared with the standard tin‑plated version, better performance for high‑humidity, vibration‑prone, long‑life applications, lower intermittent‑connection risk
- Manufacturing‑friendly: Optimized SMD pad layout, stable tape‑and‑reel carrier, high pick‑and‑place yield for mass production
- Flexible customization: Support custom pin count, plating thickness, special packaging for OEM/ODM projects
- Cost‑optimized alternative: Stable domestic supply chain, shorter lead‑time vs imported original parts, competitive total cost for medium‑high volume orders
Application
- Consumer Electronics: Small household appliances, wearable devices, smart panels, portable equipment
- Display & Touch Module: LCD / OLED display internal signal connection, touch screen modules
- Industrial Control: Compact sensors, small controllers, security & alarm equipment
- Medical Device: Portable medical instruments (signal‑level connection only)
- IoT & Smart Hardware: Smart sensor nodes, miniature communication modules
Customer Selection Guide
- Pin count selection: Confirm actual signal/power channels; select 2‑20P accordingly. Avoid over‑spec pin count to save PCB space.
- Plating choice: Choose full gold‑plated version for high humidity, vibration, long service‑life requirement; tin‑plated alternative available for cost‑sensitive general‑purpose projects.
- PCB design: Follow WT125JW recommended pad layout (same as Molex 51146 footprint). Do not modify pad size arbitrarily.
- Mating reminder: Use matching mating housing & crimp terminals compatible with 51146 series; apply AWG 28‑32 wire gauge.
- Assembly: Must use tape‑and‑reel for automatic SMT; manual assembly is allowed for small‑batch prototype only.
- Soldering: Strictly follow lead‑free reflow temperature curve; avoid secondary repeated high‑temperature reflow.
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 for 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 obey ISO9001, IQC, OQC, IPQC, QA occupy 10% of our Quality department. 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 make all of their prices on a list, and the prices are always changing because of the material cost 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 for we 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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