TE Connectivity HC-STAK 35 High-Voltage Interconnection System
TE Connectivity's (TE) HC-STAK 35 High-Voltage (HV) Interconnection System enables higher torque, stronger acceleration, and continuous power delivery in high-performance electric vehicles (EVs) and hybrid EVs (HEVs). This system features a scalable fork-terminal architecture with up to 64 independent contact points, enabling OEMs to enhance vehicle performance while safely maintaining compact packaging and long-term reliability. The shielded, touch-safe design offers ultra-high current capacity, supporting up to 400A continuous with 95mm2 conductors at +85°C. The construction resists vibration and is designed to withstand mechanical and thermal stress. TE HC-STAK 35 High-Voltage Interconnection System is ideal for heavier xEV platforms, including EVs and HEVs with increased curb weight, AWD systems, or integrated towing capabilities.
Features
- Enables torque-rich performance to support peak power delivery for fast acceleration, high traction, and sustained hill climbs
- Ultra-high current capacity
- High-performance energy transfer enables rapid acceleration, high torque, and sustained power under load
- Proven, scalable fork contact system with up to 64 layered contact points provides consistent electrical performance
- Low electrical resistance with ultrasonic-welded terminals that reduce power loss and heat generation
- Well-suited for heavier xEV platforms and built for electric and hybrid vehicles with increased curb weight, AWD systems, or integrated towing capabilities
- Shielded, touch-safe design meets IP2XB, IP67, and V0 flammability requirements for safety and durability
- Vibration-resistant construction designed to withstand mechanical and thermal stress
- Future-ready and built to meet the evolving power demands of next-gen xEV architectures
Applications
- Inlet to battery
- Battery to inverter
- E-motors
- Power distribution
Specifications
- Up to 1000VDC voltage rating
- Up to 400A at +85°C (95mm2) current rating
- 70mm2 or 95mm2 wire size
- 3.5mm double-ended fork terminal type
- -40°C to +125°C operating temperature range
Exploded View
Comparison Chart
Related Interconnection Systems
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