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：Custom Stamped Contact Shrapnel for Power Distribution Modules – High-Conductivity Copper Alloy
| Place of Origin | Shenzhen, China |
|---|---|
| Brand Name | TF |
| Certification | lSO9001 |
| Model Number | TF-001 |
| Minimum Order Quantity | 1 |
| Price | 0.07-0.23USD |
| Packaging Details | Carton packaging 18*15*12cm (packaging can be customized according to customer product requirements) |
| Delivery Time | 3days/Start |
| Payment Terms | T/T |
| Supply Ability | 10000000pieces/per month |
Product Details
| Product Type | Custom Power Distribution Shrapnel / High-Current Switch Contacts / High-Conductivity Stamped Shrapnel | Main Material | Pure Copper / Copper Alloy / Beryllium Copper |
|---|---|---|---|
| Material Thickness | 0.15-0.25mm / 0.25-0.4mm / 0.4-0.6mm | Process Type | Precision Progressive Die Stamping / Bending Forming / Selective Silver Plating / Stress Relief Heat Treatment |
| Surface Finish | Silver Plating / Tin Plating / Nickel Plating | Contact Resistance | ≤5mΩ / ≤10mΩ |
| Rated Current | 63A / 125A / 200A / 400A | Operating Temperature | -40°C To +125°C / -40°C To +150°C |
| Highlight | Custom Stamped Contact Shrapnel,High-Conductivity Copper Alloy Shrapnel,Precision Stamped Power Distribution Parts |
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Product Description
Tingfeng Hardware provides custom stamped contact shrapnel for power distribution modules, specializing in high-conductivity, high-current requirements. A pure copper or copper alloy substrate with selective silver plating achieves contact resistance below 5mΩ, with rated current covering 63A to 400A. With 16 years of precision manufacturing experience, we support non-standard geometry customization and 100% contact resistance inspection, helping power distribution module clients achieve low-loss, low-temperature-rise reliable electrical connections within limited space.
Product Overview
Power distribution modules — such as high-voltage junction boxes, DC distribution units, and industrial power distribution boards — require high-current distribution and switching control within compact spaces. Contact shrapnel, as the core conductive and elastic element, directly determines module efficiency and safety through its contact resistance and temperature rise.
Our shrapnel uses high-conductivity copper alloy, achieving precise contact geometry through precision stamping, with selective silver plating further reducing contact resistance (≤5mΩ). For different busbar layouts and mating methods of power distribution modules, we provide non-standard customized shrapnel geometry design, ensuring stable contact pressure within limited travel. Each batch undergoes 100% contact resistance and dimensional inspection, suitable for DC power distribution, industrial power supplies, and internal power distribution in charging modules.
Precision metal stamping parts manufacturing process
Features & Advantages
| Feature | Advantage to You |
|---|---|
| High-conductivity copper alloy + selective silver | Contact resistance ≤5mΩ, reducing temperature rise and energy loss under high current |
| Non-standard geometry customization | Shrapnel shape tailored to busbar layout of power distribution modules, maximizing space utilization |
| 63A–400A wide current coverage | One process platform adapts to different power level distribution requirements |
| 100% contact resistance inspection | Ensures consistent conductivity per batch, reducing module failure risk |
| Stress relief heat treatment | Maintains elastic stability under long-term current and thermal cycling, preventing contact pressure decay |
Precision metal stamping parts quality inspection
Product Specifications
| Specification Item | Detail / Range | Tolerance / Standard |
|---|---|---|
| Material Type | Pure Copper / Copper Alloy / Beryllium Copper | Conductivity ≥80% IACS |
| Material Thickness | 0.15 mm – 0.6 mm | ±0.005 mm |
| Contact Resistance | ≤ 5 mΩ (Silver) | Measured |
| Rated Current | 63A – 400A | Design dependent |
| Contact Force | 1.0 N – 5.0 N | ±15% |
| Surface Finish | Silver / Tin / Nickel Plating | Thickness controlled |
| Operating Temperature | -40°C – +150°C | Industrial / Automotive Grade |
| Salt Spray Test | ≥ 96 hours | No corrosion |
Product Applications
High-Voltage Junction Boxes
Main relay contact shrapnel, pre-charge resistor connector tabs, DC bus distribution contacts.
DC Distribution Units
DC breaker contact shrapnel, load distribution terminals, grounding shrapnel.
Industrial Power Distribution Boards
High-current terminal shrapnel, power module parallel contacts.
Charging Module Internals
Power distribution board contact shrapnel, DC output terminals.
Frequently Asked Questions
Can you handle complex custom designs and provide design optimization suggestions?
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.
How do you ensure quality consistency and handle defect issues?
We implement a rigorous 4-stage QC system with 100% full inspection. Our track record shows a 99.99% qualification rate.
What are your lead times and how do you handle urgent orders?
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%.
Will I get timely responses and professional support throughout the project?
Yes. You get a 1v1 exclusive consultant with a 1-hour initial response commitment and 24-hour technical support.
Can you provide material certifications and environmental compliance reports?
Yes. We provide material certifications and environmental test reports (RoHS, REACH compliant) upon request.
How do you protect my designs and intellectual property?
We start with a mutual NDA and implement strict mold ownership protection and confidential data security measures.
What are your payment terms and MOQ requirements?
We offer flexible payment terms (T/T, L/C at sight) and MOQ from 1 piece for prototyping.
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