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Home / Engine Parts / Ignition Systems / Champion /Champion Exciter CH92133
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Champion Exciter CH92133

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Part# 08-19064
MFR Model# CH92133

Overview

The Champion Aerospace Ignition Exciter Assembly, Model CH92133 is eligible by FAA-PMA for use on the Rolls-Royce Model 250 Series I, II, III & IV turbine engines as approved for replacement of the following exciter models:

Rolls-Royce
  • PN 6899093
  • PN 6895573
Unison
  • PN 10-614950-1
  • PN 10-387150-1
  • PN 49522

Features

  • The exciter consists entirely of solid state circuitry with no “wear out”
  • characteristics to ensure consistent performance and long life
  • The exciter does not contain radioactive materials as these materials are not
  • necessary for operational stability
  • The exciter presents the same footprint, form and weight as the OEM part so
  • that installation and the weight/balance of the airframe is not affected

Specifications

  • Input Power:
    • 14-30 VDC
    • 1.1A typical, 1.5A (max.)
      • Operational duty cycle: Continuous @ 185°F (85°C)
      • Operational Temp. Range: -54 to +121°C
      • Spark Rate:
        • 5 to 15 sparks/second
        • (Input voltage dependent)
      • Output voltage: 7kV minimum (8kV typical)
      • Output waveform: Unipolar, 40µs spark duration
      • Stored energy: 1.4 joules nominal

Benefits

  • Vibration tested to 35g for 9 hours, 3 axis (Sinusoidal)
  • Shock tested to 30g, 3 axis (Saw-tooth impulse)
  • High temperature endurance tested at 250°F (121°C) 300 hours
  • Low temperature tested at -65°F (-54°C)
  • Tested for continuous operation at 26,000 ft. (7,925 m) equivalent altitude
  • EMC tested per RTCA/DO-160E, radiated and conducted emissions
  • Durable, environmentally resistant polyurethane finish

Documents

Competitive Analysis

Comparison to the OEM Ignition Exciter – Design Features
Unison Ignition Exciter Champion Ignition Exciter
PN 10-614950-1 PN CH92133
Housing – Solder sealed Housing – Welded
Weight – 1.4lbs Weight – 1.4lbs
HV switch – Spark Gap Solid State Spark Gap (S3GTM)
Life limited Non-limited life
Radioactive "Krypton 85" Radiation free
Repairable – No Repairable – Yes


Performance Comparison to the OEM ignition exciter
Characteristic Unison Ignition Exciter Champion Ignition Exciter
Energy at the plug: 0.4 joules nominal 0.4 joules nominal
In-rush current at 14Vdc: 29A (peak) 26A (peak)
Input current at 29Vdc: 1.3A rms (typical)* 1.1A rms (typical)*
Spark rate at 14Vdc: 4.6 spk/sec. 5.6 spk/sec.
Spark rate at 29Vdc: 12.3 spk/sec. 12.1 spk/sec.
Time to first spark at 14Vdc: 215 msec. nominal 200 msec. nominal
Output current: 825A (peak) 805A (peak)
Output voltage: 11.3kV (peak) 9.5kV (peak)
Spark duration: 36µsec. Nominal 40µsec. Nominal

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Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.