HYY Series Aerospace Grade Polyimide Composite Insulated Wire – BYC Cables

Product Overview

Feature Specification
Product Series HYY (High-Performance Polyimide Composite Wire)
Equivalency Fully compatible with SAE AS 22759/80 – 92
Insulation Polyimide (PI) Film + PTFE Film Composite Wrapping
Rated Voltage 600V AC
Temperature Range -65°C to +260°C (-85°F to +500°F) [Silver-plated] / +200°C (+392°F) [Nickel-plated]
Key Features Ultra-lightweight, high cut-through resistance, radiation resistant, non-melting, exceptional chemical & thermal stability.
Applications High-reliability wiring for aerospace, avionics, defense systems, and harsh environment instrumentation.

Comprehensive Configuration Matrix

Our HYY series covers over 100+ configurations including multi-core twisted, EMI shielding, and protective jacketing. If your specific requirement is not listed in the standard table, please contact us for custom configuration.

Configuration Category Available Options
Core Count Single (1C), Pair (2C), Triad (3C), Quad (4C)
Shielding Unshielded, Silver-plated Copper Braid (EMI Protection)
Jacket No Jacket, PTFE Tape Jacket, PI/FEP+PTFE Composite Jacket
Construction Type Lightweight (81, 82, 91, 92), Standard/General (86, 87, 89, 90)
Conductor Material Silver-plated Copper, Nickel-plated Copper, High-strength Alloy
Compliance Q/HY 105-2010

Dimensions & Weight: Single-Core (1C) Unshielded

AWG Conductor Construction (n/mm) Max O.D. (Light) (mm) Weight (Light) (kg/km) Max O.D. (Std) (mm) Weight (Std) (kg/km)
26 19 / 0.102 0.81 2.16 0.89 2.31
24 19 / 0.127 0.91 2.93 1.02 3.27
22 19 / 0.160 1.05 4.39 1.14 4.61
20 19 / 0.203 1.26 6.62 1.35 6.99
18 19 / 0.254 1.47 9.90 1.60 10.3
14 19 / 0.360 1.98 19.0 2.12 19.9
10 37 / 0.403 3.07 46.7 3.15 47.0

Multicore & Shielding Configuration Comparison

Configuration Type Code Core x Size Nominal O.D. (mm) Max Weight (kg/km) Primary Benefit
1-Core Shielded HYY91/1S 1 x 24 AWG 1.54 7.54 Compact EMI protection
2-Core Twisted HYY81 2 x 24 AWG 1.82 5.86 Flex data pair
2-Core Shielded HYY91/2S 2 x 24 AWG 2.45 12.3 Shielded signal transmission
2-Core Shield+Jacket HYY91/2SN 2 x 24 AWG 2.82 14.4 Max environmental protection
4-Core Shielded HYY91/4S 4 x 24 AWG 2.83 19.4 High-density data trunk

Conductor Maximum Resistance @ 20°C (68°F) (Ohm/km)

AWG Silver-plated Copper (SPC) Nickel-plated Copper (NPC) Silver-plated Alloy (SPA) Nickel-plated Alloy (NPA)
26 126 138 185 192
24 79.7 85.0 93.2 98.8
20 30.1 32.1 35.1 37.4
14 9.45 9.84

Key Performance Standards

  • Dielectric Strength: Resistance to high-voltage industrial frequency (2500V/5min).
  • Insulation Resistance: >1500 MOhm-km
  • Flammability: Self-extinguishing (Oxygen Index >40 percent)
  • Chemical Stability: Hydrolysis resistant; inert to all aviation solvents and acids.
  • Thermal Aging: Passed 200°C (392°F) aging for 500 hours.

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