Part number: 22433AA421

Diamond FK0140 is used on many Subaru models:

Dwell is said to be 3 ms according to [Link Electrosystems], along with a suppression capacitor. It is a 3-pin design with internal ignitor:

* Coil positive on Pin 1 (with the raised edge)

* Ignitor ground on Pin 2 (in the middle)

* Ignitor positive on Pin 3 (at the clip end)

* Coil ground on mounting bolt.

COIL ON PLUG FK0140 Features:

* Integrated coil driver circuit with diagnostics

* Fast primary and secondary rise times allow for multiple strike capabilities

* Very high weight – energy ratio for maximum performance efficiency

* Design provides reduced RFI

* Precise electronic timing

* Over 150,000 mile durability

* Robust electrical connection to the spark plug

* Reduced under hood complexity and enhanced engine appearance

* Waterproof primary connector

* Coated laminations for corrosion resistance

* Greater packaging flexibility with reduced assembly costs

* Energy adaptable for high demand combustion requirements

* Tooling required

Specs:

||||||||Output Voltage |||||| Spark Energy ||

|| Primary Break Current |||| Output Voltage || Secondary |||||| Spark Energy @ Vz = 1,000 Volts ||

|| ||25pF Load||25p-1M Load||Rise Time*||Current||Duration||Energy||

||6A||28 KV||19 KV||11.2 usec||53 mA||1.0 ms||22 mJ||

||8A||33 KV||23 KV||10.2 usec||67 mA||1.1 ms||28 mJ||

||||||||||||||Open Circuit Voltage: 39 KV @ 6 break Amps 44 KV @ 8 break Amps||

How best to drive this one?

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