Phosphor Bronze Conical Antenna Battery Spring RF Antenna & PCB Contact Dual-Purpose Wire Form Terminal Spring

Our custom conical antenna battery spring is a multi-functional wire form terminal spring made of C5191 phosphor bronze, designed to work as both RF antenna spring and PCB contact spring for compact wireless electronic devices. It is integrally tapered conical coil wound by precision CNC spring machine, with bent positioning hook terminal for PCB soldering and assembly fixation. After forming, the whole piece undergoes high-temperature bright annealing to fully eliminate internal forming stress and avoid springback deformation. Subsequent degreasing cleaning plus passivation treatment removes surface oil stains and forms an anti-oxidation protective layer to maintain stable electrical conductivity long-term. As a trusted OEM manufacturer offering full custom service, we tailor all dimensions, coil counts, terminal bending angles and elasticity to match unique wireless device circuit layout demands. Every finished phosphor bronze spring passes strict full inspection on conical coil diameter, overall height, terminal bending angle and elastic tolerance before shipment.

• Wireless IoT module built-in RF signal transmission antenna (RF antenna spring)
• Bluetooth, Wi-Fi miniature device PCB conductive contact connection (PCB contact spring)
• Portable smart device battery conductive contact components (conical antenna battery spring)
• Mini sensor wireless signal receiving wire form terminal spring hardware
• Household smart electronic circuit conductive contact assembly parts
• Wearable compact wireless equipment dual-function signal & power conductive springs

• OEM & ODM full custom service: Produce custom phosphor bronze spring according to customer technical drawings or physical samples.
• Material customization: Alternative beryllium copper, brass, stainless copper alloy on demand for different conductivity requirements.
• Size customization: Adjustable wire diameter, conical coil big/small end OD, coil turns, terminal length & bending angle.
• Surface finish customization: Bright annealing passivation, silver plating, gold plating to boost electrical conductivity.
• Performance customization: Tunable contact elastic force for stable PCB circuit connection.
• Packaging customization: Neutral export cartons, customer branded packaging for bulk OEM orders.

• Dual-function integrated design combines RF signal antenna and PCB conductive contact, cutting separate component procurement & assembly cost.
• C5191 phosphor bronze material features superior electrical conductivity, solving weak signal & poor conductive contact failure points.
• High-temperature bright annealing eliminates internal stress, preventing springback deformation after PCB soldering and long-term usage.
• Degreasing + passivation anti-oxidation treatment avoids copper oxidation discoloration, sustaining stable conductivity in daily working environments.
• CNC one-piece conical coiling & terminal forming ensures precise concentricity, eliminating assembly misalignment and poor contact gaps.
• Strict ±0.02mm dimensional & ±5% elastic tolerance, 100% full inspection guarantees consistent batch signal transmission & conductive performance.

• Raw material incoming QC: Hardness, wire surface smoothness and conductivity test for C5191 phosphor bronze wire.
• In-process monitoring: Real-time dimension tracking during CNC conical coiling and terminal hook bending.
• Heat treatment verification: Springback deformation test after bright annealing to confirm stress elimination.
• Surface finish inspection: Complete degreasing effect and uniform anti-oxidation passivation layer coverage check.
• Finished product full inspection: Conical coil size, height, bending angle measurement, elastic contact force testing, visual defect sorting.
• Batch sampling aging cycle test to verify long-term stable conductivity & elasticity.
• Complete production and inspection test reports available for mass OEM custom orders.

Can you customize phosphor bronze spring based on my samples or engineering drawings?

Yes, we provide full OEM custom service, support both sample duplication and drawing specification production.

What extra surface plating options can improve conductivity for RF antenna spring?

Silver plating and gold plating are optional on top of standard bright annealing passivation.

What is the minimum order quantity for prototype conical antenna battery spring?

Small trial prototype batches are acceptable, mass production MOQ can be negotiated for long-term partners.

How do you guarantee stable conductive elasticity of PCB contact spring in mass batches?

All finished wire form terminal spring undergo 100% elastic force and dimensional testing for batch consistency.

What lead time will I receive for bulk custom phosphor bronze spring orders?

Prototype samples take 3–5 working days; mass production orders ship within 7–15 working days based on order quantity.