Product Overview
Motorola 2N5550 140V 600mA NPN Silicon BJT Transistor
Condition
New old stock (NOS). Individual through-hole transistor with formed leads and factory tape remnant near the lead ends. Body markings read 2N 5550 with the Motorola logo and lot code 508.
Same or next business day shipping from our Idaho warehouse. Reliable parts since 1999. Honest pricing, no nonsense.
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Product Overview
The Motorola 2N5550 is a general-purpose, high-voltage NPN silicon bipolar junction transistor housed in a standard TO-92 package. Rated for a 140V collector-emitter breakdown voltage and 600mA continuous collector current, it is built for high-voltage switching, audio amplifier stages, and driver circuits.
Key Features
- Transistor Polarity: NPN Silicon BJT
- Collector-Emitter Breakdown Voltage (Vceo): 140 V
- Collector-Base Breakdown Voltage (Vcbo): 160 V
- Continuous Collector Current (Ic): 600 mA
- Total Device Dissipation (Pd): 625 mW
- Package: TO-92 with formed 3-lead through-hole pinout
- DC Current Gain (hFE): 60 minimum at 10 mA / 5 V
Applications
- High-voltage line-operated amplifiers and audio driver stages
- Nixie tube driver circuits and discrete high-voltage display switching for hobby builds
- General-purpose discrete switching and relay control circuits
Frequently Asked Questions
What is the pinout configuration for this TO-92 transistor?
Facing the flat front side of the TO-92 case with leads pointing downward, the standard 2N5550 pinout from left to right is Emitter (pin 1), Base (pin 2), and Collector (pin 3).
Why is there a tape strip near the bottom of the leads?
The tape remnant is from the original factory bandolier tape used during automated component feed and packaging.
Why purchase individual transistors here instead of a large bulk reel?
Buying counted single units lets you source the exact component count needed for a repair, prototype, or small production run without sitting on excess stock. Flat-rate shipping is $8, orders over $28 ship free, and orders leave our Idaho warehouse the same or next business day.
A dependable high-voltage workhorse from Motorola silicon heritage, ready to bias up clean on your bench. Pop it into your circuit and let the electrons flow.
Shipping? $8 flat rate, free once your order passes $28 - and it leaves the Idaho warehouse the same or next business day.
