Product Overview
ON Semi MJL21194 Silicon NPN Complementary Audio Output Device
Condition
Unused new old stock (NOS) surplus in clean physical condition. Leads are straight and unformed with clean factory plating. Markings legible: ON MJL21194. Sold individually.
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Product Overview
Perforated emitter technology gives this silicon bipolar device exceptional gain linearity and a broad safe operating area of 2.25 A at 80 V for a full second. Housed in a through-hole, high-dissipation plastic package, it provides the rugged electrical headroom demanded by professional audio amplifiers, linear power supplies, and magnetic actuator positioning circuits.
Key Features
- Transistor polarity: NPN silicon bipolar
- Sustaining collector-emitter voltage (VCEO(sus)): 250 Vdc
- Continuous collector current (IC): 16 Adc (30 Adc peak)
- Total power dissipation (PD): 200 W at 25 degrees C case temperature
- DC current gain (hFE): 25 to 75 at 8.0 Adc, 5.0 Vdc
- Package: TO-264-3 (TO-3PBL) through-hole mounting
- Standard pinout: Pin 1 Base, Pin 2 / Tab Collector, Pin 3 Emitter
Applications
- Servicing push-pull output stages in high-power professional audio amplifiers
- Linear benchtop power supply output passes requiring high SOA margins
- Precision DC motor drives and magnetic actuator head positioning controls
- Audiophile DIY amplifier builds pairing with complementary PNP MJL21193
Frequently Asked Questions
What is the complementary PNP transistor for the MJL21194?
The complementary PNP transistor is the MJL21193, commonly paired with the MJL21194 in complementary push-pull audio output sections.
What is the pinout configuration for the TO-264 package?
Facing the marked front of the transistor with leads pointing downward, Pin 1 (left) is the Base, Pin 2 (center) and the metal mounting tab are the Collector, and Pin 3 (right) is the Emitter.
Can this part replace older TO-3 metal can transistors like the 2N3773 or MJ15024?
The electrical ratings meet or exceed many legacy TO-3 parts, but the flat plastic package uses a completely different physical footprint and lead spacing requiring mechanical adaptation if replacing a metal can device.
Built for heavy output swings and steady current delivery when lesser silicon folds under the heat. A proper workhorse for keeping high-power audio stages clean and running true.
