Phosphor Bronze Stamped Battery Contacts – Low Resistance for Portable Electronics
Tingfeng Hardware provides phosphor bronze stamped battery contacts, specifically designed for battery connections in portable electronic devices. Using high-conductivity phosphor bronze (C5191) material, we produce low contact resistance, high-elasticity battery contacts and connector tabs through precision stamping and bending forming. Gold or nickel plating ensures long-term oxidation resistance and stable conduction. With 16 years of precision manufacturing experience, we provide reliable battery connection solutions for consumer electronics and wearable devices.
Product Description
Phosphor bronze stamped battery contacts are critical components for reliable battery-to-PCB connections in portable electronic devices. Our contacts use phosphor bronze (C5191) material, offering excellent conductivity (approximately 15% IACS), fatigue resistance, and elastic memory. Through precision stamping forming, contacts achieve stable spring force, ensuring reliable contact across varying battery heights. Gold or nickel plating controls contact resistance below 10mΩ while ensuring solderability. Each contact undergoes 100% force testing and dimensional inspection, suitable for compact space applications such as TWS earbuds, smartwatches, and portable medical devices.
Product Features & Advantages
| Feature |
Advantage to You |
| Phosphor bronze high-spring material |
Excellent elastic memory and fatigue resistance, ensuring stable force over long-term use |
| Low contact resistance control |
Gold/nickel plating controls contact resistance below 10mΩ, reducing energy loss |
| Adapts to battery height variations |
Optimized spring design maintains reliable contact across different battery thicknesses |
| Compact space adaptation |
Supports 0.05-0.3mm thin material stamping, suitable for narrow spaces in portable devices |
| SMT tape-and-reel packaging |
Tape-and-reel for automated placement, improving assembly efficiency |
Product Specifications
| Specification Item |
Detail / Range |
Tolerance / Standard |
| Material Type |
Phosphor Bronze C5191 / Phosphor Bronze C5210 |
Conductivity ≥15% IACS |
| Material Thickness |
0.05 mm -- 0.3 mm |
±0.005mm |
| Contact Resistance |
≤ 10 mΩ |
Measured |
| Spring Force |
0.1 N -- 2.0 N |
±15% |
| Dimensional Accuracy |
±0.01mm -- ±0.02mm |
Per drawing |
| Surface Finish |
Gold / Nickel / Tin Plating |
Thickness controlled |
| Operating Temperature |
-40°C -- +120°C |
Phosphor bronze property |
| Packaging |
Tape & Reel / Bulk |
As required |
Product Applications
- TWS Earbuds: Charging case battery contacts, earbud battery connection springs, charging case electrode contacts
- Smartwatches: Watch battery contact tabs, charging cradle contacts, heart rate monitor module connection terminals
- Portable Medical Devices: Portable monitor battery contacts, glucose meter battery connector tabs, hearing aid battery contact springs
- Smart Home: Smart lock battery contacts, sensor battery connector tabs, remote control battery springs
Frequently Asked Questions
Q: Can you handle complex custom designs and provide design optimization suggestions?
A: Absolutely. This is our core expertise. We provide free DFM analysis within 3-5 days, often helping clients achieve 15-30% cost reduction through design for manufacturability.
Q: How do you ensure quality consistency and handle defect issues?
A: We implement a rigorous 4-stage QC system with 100% full inspection. Our track record shows 99.99% qualification rate.
Q: What are your lead times and how do you handle urgent orders?
A: Standard lead times: 3-7 days for prototypes, 7-15 days for mass production. We offer VIP prioritization cutting lead times by up to 30%.
Q: Will I get timely responses and professional support throughout the project?
A: Yes. You get a 1v1 exclusive consultant with 1-hour initial response commitment and 24-hour technical support.
Q: Can you provide material certifications and environmental compliance reports?
A: Yes. We provide material certifications and environmental test reports (RoHS, REACH compliant) upon request.
Q: How do you protect my designs and intellectual property?
A: We start with mutual NDA and implement strict mold ownership protection and confidential data security measures.
Q: What are your payment terms and MOQ requirements?
A: We offer flexible payment terms (T/T, L/C at sight) and MOQ from 1 piece for prototyping.
