Micro Precision Helical Spring 1.5mm Electronic Switches Custom Compression Springs
Micro Precision Helical Spring 1.5mm Electronic Switches Custom Compression Springs
Basic Properties
Place of Origin:
Sihong, China
Brand Name:
Sunzo
Certification:
CE/IATF16949/45001/14001/9001
Trading Properties
Minimum Order Quantity:
Negotiable
Price:
Negotiable
Payment Terms:
Negotiable
Product Summary
Micro-precision compression spring for electronic switches. Ensures stable contact force & 10⁶ cycle reliability. Available in 316L stainless, beryllium copper & Nitinol. Custom options with ISO 9001 certification.
Product Custom Attributes
Highlight
Micro Precision Helical Spring
,Helical Spring 1.5mm
,Electronic Switches custom compression springs
Wire Diameter:
0.08mm To 1.5mm
Coil OD:
2mm
Working Stroke:
0.5mm-5mm
Load Tolerance:
±1%
Salt Spray Resistance:
1000-hour
Electrical Conductivity:
98%
Temperature Range:
-40°C To 125°C
Coiling Resolution:
±0.0005mm
Surface Defect Detection:
5μm-level
Elastic Decay:
<1%
Plating Thickness:
10-25μm
Dynamic Load Range:
0.1-50N
Load Accuracy:
±0.5%
Temperature Cycling:
-40°C To 85°C, 1000 Cycles
Force Variation:
<2%
Contact Resistance:
<50mΩ
Fatigue Life:
10⁶ Cycles
Rated Load:
70%
Cycle Reliability:
10⁶ Cycles
Deflection Range:
±1%
Product Description
Detailed Specifications & Features
Compression Spring for Electronic Switches: Micro-Precision Engineering for Stable Contact and 10⁶ Cycle Reliability
Technical Specifications
| Parameter | Specification |
|---|---|
| Wire Diameter | 0.08mm to 1.5mm |
| Coil Outer Diameter | As small as 2mm |
| Working Stroke | 0.5mm to 5mm |
| Load Tolerance | ±1% across entire deflection range |
Material Options
- 316L Stainless Steel: Passivated per ASTM A967, provides 1000-hour salt spray resistance (ASTM B117) for humid conditions
- Beryllium Copper (C17200): Offers 98% electrical conductivity for signal-transmitting contacts
- Nitinol (NiTi) Shape Memory Alloy: Ensures stable performance across -40°C to 125°C for automotive electronics
Manufacturing Process
- Diamond-tipped CNC coiling with real-time laser diameter monitoring (±0.0005mm resolution)
- Automated optical inspection (AOI) for 5μm-level surface defect detection
- Vacuum annealing at 380°C to eliminate residual stress, ensuring <1% elastic decay over 10⁶ cycles
- Electroless nickel plating (10-25μm thickness) for corrosion protection and solderability
Performance Validation
- Dynamic load testing (0.1-50N force range) with ±0.5% accuracy per ISO 17256
- Temperature cycling (-40°C to 85°C, 1000 cycles) with <2% force variation
- Contact resistance measurement (<50mΩ after 10⁶ operations)
- Fatigue life testing (10⁶ cycles at 70% rated load per IEC 60669-1)
Field Performance Results: A leading consumer electronics brand reduced switch failure rates from 0.3% to 0.002% after implementing our springs. Medical device manufacturers achieved ISO 10993-5 biocompatibility compliance, and automotive Tier 1 suppliers met IATF 16949 requirements for in-vehicle switches.
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