EMI Shielding Springs | Canted Coil EMI / RFI Shielding Solutions
Reliable electromagnetic shielding, grounding, and conductivity for high-performance electronic systems.
EMI shielding springs, based on canted coil technology, provide continuous conductive paths for effective electromagnetic interference (EMI) and radio frequency interference (RFI) shielding. These springs ensure low impedance, consistent contact force, and reliable shielding performance in demanding environments.

Part of our Canted Coil Spring Solutions family, including:
How EMI Shielding Springs Work
Canted coil springs create multiple contact points along the mating surfaces, forming a continuous conductive path that blocks electromagnetic leakage. This ensures effective shielding even under vibration, thermal expansion, or mechanical variation.
Key Benefits of EMI Shielding Springs
- Continuous conductive path for effective EMI/RFI shielding
- Low impedance contact for improved shielding effectiveness
- Stable performance under vibration and shock
- Near-constant force ensures consistent contact pressure
- Long service life compared to traditional fingerstock solutions
In addition to shielding, canted coil springs are also widely used for electrical conductivity applications 및 mechanical retention systems.

Continuous Contact for Effective Shielding
Unlike conventional shielding methods, EMI shielding springs maintain continuous contact along the interface, reducing gaps that can cause electromagnetic leakage.
- Improved shielding integrity
- Reduced signal leakage
- Consistent grounding performance
Near-Constant Force for Reliable Shielding
The near-constant force characteristic ensures stable contact pressure across varying tolerances, maintaining shielding effectiveness over time.

맞춤형 제조
Design Flexibility for EMI Applications
EMI shielding performance can be optimized through design variables such as:
- Spring force and geometry
- Wire material selection
- Plating type and thickness
- Groove design and installation method

제품 사양
사양
소니의 EMI 차폐 스프링은 0.030"(.76mm) ID의 길이(단순 또는 복잡한 홈 구성용)와 용접 링으로 제공됩니다. 모든 스프링은 애플리케이션의 고유한 요구 사항을 충족하도록 설계되었기 때문에 "표준" 크기와 유형은 보유하고 있지 않습니다. 하지만 일반적으로 요청되는 직경과 단면의 데이터베이스를 보유하고 있어 간소화된 맞춤화를 위한 기준이 될 수 있습니다.
아래 표에는 EMI 차폐 스프링의 표준 치수가 간략하게 나와 있습니다.
이러한 치수는 요청 시 제공될 수 있는 표준 제조 공차의 적용을 받습니다.
| 시리즈 | 로드 유형 | "A" (금속 와이어) |
"B" (미성년자) |
"C" (전공) |
"T" (컷 길이) |
"ID" "(와일드 ID)" |
|---|---|---|---|---|---|---|
| HD-CS-L132 | L | 0.08 | 0.62 | 0.70 | 7.60 | 1.80 |
| HD-CS-M132 | M | 0.10 | 0.62 | 0.70 | 7.60 | 1.80 |
| HD-CS-H132 | H | 0.12 | 0.65 | 0.75 | 7.70 | 1.80 |
| HD-CS-L000 | L | 0.12 | 1.40 | 1.55 | 12.90 | 2.70 |
| HD-CS-M000 | M | 0.15 | 1.40 | 1.55 | 12.90 | 2.70 |
| HD-CS-H000 | H | 0.20 | 1.20 | 1.32 | 12.20 | 2.70 |
| HD-CS-L100 | L | 0.18 | 2.00 | 2.40 | 19.80 | 4.30 |
| HD-CS-M100 | M | 0.35 | 2.00 | 2.40 | 20.10 | 4.40 |
| HD-CS-H100 | H | 0.35 | 2.00 | 2.30 | 19.80 | 4.30 |
| HD-CS-L200 | L | 0.30 | 2.80 | 3.20 | 30.10 | 6.80 |
| HD-CS-M200 | M | 0.35 | 2.80 | 3.20 | 30.10 | 6.80 |
| HD-CS-H200 | H | 0.40 | 2.80 | 3.20 | 30.10 | 6.80 |
| HD-CS-L300 | L | 0.40 | 4.00 | 4.50 | 42.70 | 9.60 |
| HD-CS-M300 | M | 0.50 | 4.00 | 4.50 | 42.70 | 9.60 |
| HD-CS-H300 | H | 0.60 | 4.00 | 4.50 | 42.70 | 9.60 |
| HD-CS-L400 | L | 0.50 | 5.50 | 6.00 | 61.20 | 14.00 |
| HD-CS-M400 | M | 0.60 | 5.50 | 6.00 | 61.20 | 14.00 |
| HD-CS-H400 | H | 0.70 | 5.50 | 6.00 | 61.20 | 14.00 |
| HD-CS-L500 | L | 0.60 | 8.20 | 9.20 | 96.40 | 22.50 |
| HD-CS-M500 | M | 0.70 | 8.20 | 9.20 | 96.40 | 22.50 |
| HD-CS-H500 | H | 1.00 | 8.20 | 9.20 | 96.40 | 22.50 |
| HD-CS-L600 | L | 0.70 | 11.40 | 12.80 | 152.00 | 37.00 |
| HD-CS-M600 | M | 1.00 | 11.40 | 12.80 | 152.00 | 37.00 |
| HD-CS-H600 | H | 1.20 | 11.40 | 12.80 | 152.00 | 37.00 |
Materials & Plating Options
Wire materials include:
- STAINLESS STEEL (302, 316, 316L)
- 베릴륨 구리
- Zirconium-Copper
- Other high-performance conductive alloys on request
Plating Options Include:
- 골드
- 실버
- 니켈
- Tin
일반적인 EMI 차폐 애플리케이션
- Electronic enclosures
- 통신 장비
- 항공우주 및 방위 시스템
- 의료 기기
- Industrial electronics
Not Sure Which Spring Fits Your Application?
Request Engineering Support
Need help improving EMI shielding performance? Our engineers can help optimize your design.
- ✔ Custom shielding design
- ✔ Material and plating recommendations
- ✔ Rapid prototyping
Contact us today to improve your EMI shielding performance.
Explore Other Canted Coil Spring Solutions
-

전기 전도성
- Low contact resistance (< 10 mΩ)
- Multi-point contact ensures stable current transfer
- Ideal for connectors, battery contacts, and grounding systems
-

Mechanical Retention & Connection
- Controlled insertion and retention forces
- Excellent elastic recovery for repeated cycles
- Suitable for locking, latching, and connector applications
자주 묻는 질문
What are EMI shielding springs?
They are spring components designed to provide continuous conductive paths for EMI/RFI shielding.
Why use canted coil springs for EMI?
They provide stable contact, low impedance, and reliable shielding under dynamic conditions.
Can they be customized?
Yes, geometry, material, and plating can all be customized.
