13003 TO-126 Transistor – KSH 10 at HIMA TRONICS Mombasa – Top quality transistors. Best electronics in Kenya. Shop now for Arduino, ESP32, sensors and IoT devices.
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13003 TO-126 Transistor

SKU: HMJ844 Category: Transistors
KSH 10.00
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Product Description

13003 / MJE13003 TO-126 Transistor (NPN)

= HighVoltage, HighSpeed Switching Transistor =

The 13003, commonly referred to as the MJE13003, is a highvoltage, highspeed NPN power transistor housed in a TO126 package . It is specifically designed for power switching inductive circuits where fall time is critical, making it particularly suited for 115V and 220V switchmode power supply (SMPS) applications .

Device Type: NPN Bipolar Junction Transistor (BJT)
Package: TO126 (also available in SOT32, TO-92)
Collector-Emitter Voltage (VCEO): 400V
Collector Current (IC): 1.5A (DC)
Ensure correct pin identification. The standard configuration is Pin 1: Base, Pin 2: Collector, Pin 3: Emitter. The collector is electrically connected to the metal mounting tab. Some packages may have a different pinout, so verify before assembly .
Do not exceed the maximum ratings to prevent permanent damage.

= Key Technical Specifications =

ParameterValueNotes
------
Collector-Base Voltage (VCBO)700VHigh blocking capability
Collector-Emitter Voltage (VCEO)400VMaximum continuous voltage
Emitter-Base Voltage (VEBO)9V
Collector Current (IC)1.5AContinuous current rating
Peak Collector Current (ICM)3ANon-repetitive peak current
Power Dissipation (Ptot)20W - 40WDepends on manufacturer and mounting conditions
DC Current Gain (hFE)8 - 40At IC = 0.5A, VCE = 2V
Gain Bandwidth Product (fT)4 MHzTypical value
Operating Junction Temperature150°CMaximum

= Key Features =

High Voltage Capability - 400V VCEO and 700V VCBO for mains voltage switching applications

HighSpeed Switching Fast fall time for efficient power conversion

High Current Gain - Low drive requirements for switching circuits

Widely Available - Multiple manufacturers offer equivalent and replacement devices

== Applications ==

  • Switch-mode power supplies
  • Electronic lighting ballasts
  • Inverters and converters
  • Motor controls
  • Solenoid and relay drivers
  • High-voltage switching circuits
HighVoltage NPN 400V VCEO rating for mains power switching applications
HighSpeed Switching Fast switching performance for efficient SMPS designs

√ Ready to use Standard TO126 package for easy through-hole mounting

√ Widely available Reliable and welldocumented power switching transistor

√ Multiple variants - Available with different hFE ratings to suit circuit requirements

= Package Includes =

  1. 1x 13003 / MJE13003 NPN Power Transistor (TO-126 Package)
This transistor is produced by many manufacturers with various prefixes (e.g., MJE13003, KSE13003, ST13003) that all generally share the same core specifications
For reliable operation, ensure adequate heatsinking when dissipating significant power
Direct equivalents include 5302D, BLD123D, BUJ101, BLD135D, BUL381D
For precise pin identification, the standard TO-126 configuration is Base (1), Collector (2), Emitter (3) .
Some datasheets list the maximum collector dissipation as 1.25W without a heatsink and up to 40W with proper heatsinking .

Avoid exceeding the maximum voltage ratings the collector-emitter voltage (VCEO) of 400V is critical

-Avoid exceeding the maximum junction temperature of 150°C

-Avoid using this transistor as a direct replacement without confirming the pinout and specifications