ICBOMS
RFQ

ST13009

STMicroelectronics

STMicroelectronics ST13009 NPN bipolar power transistor, 400 V Vceo, 12 A Ic, 100 W max, TO-220-3 through-hole package, tube.

STMicroelectronics ST13009
 Download datasheet (PDF)
[IN STOCK] In Stock: 156 pcs
$1.73/ pc

Volume pricing

Buy Now
Inquire on WhatsApp Upload full BOM

MOQ 1 · Tube · RoHS · EIA-481 · DAP/DDP · T/T

[ORIGINAL SEALED] [PRE-SHIP HD PHOTOS] [30D WARRANTY · COC] [TRACKED DAP/DDP]

Technical specifications

ST13009 specifications
Parameter / AttributeSpecification / Value
MountingThrough Hole
FET typeNPN
Voltage - collector emitter breakdown400 V
Current - collector (Ic)12 A
DC current gain (hFE) (Min) @ ic, vce10 @ 8A, 5V
Power - max100 W
Operating temperature150°C (TJ)
PackageTube
CaseTO-220-3
Vce saturation (Max) @ ib, ic2.5V @ 3A, 12A
100% Footprint Match · Solder-Ready (No PCB Redesign Needed)

Need Stock or a Drop-in Second-Source for ST13009?

Package: TO-220 (13009 also TO-3P) · Pin-compatible replacements with immediate Shenzhen spot stock

Footprint Match 97%
Supply Chain & Allocation Reality:

The MJE13005/13007/13009 ladder is the high-voltage NPN switch line of ATX supplies, chargers, adapters and ballast circuits: 400V sustaining, 700V blocking, and 4A / 8A / 12A of collector current in the same TO-220 body - the 13007 being the half-bridge classic that every ATX repair bench has burned and replaced. Part of the repair culture treats them as MOSFETs because of where they sit; the drive reality is bipolar, through a base network that dies with them. The rating sheet hides one more misread: 400V and 700V are simultaneous numbers (VCEO and VCBO), not two competing parts.

Verified Pin-Compatible Replacements (3 verified alternatives)

MJE13009 onsemi / STMicroelectronics TO-220 / TO-3P
100% Drop-in (Zero Code Change)
Availability & Target Pricing:

The 12A Top Rung

Shenzhen Spot Stock (24-48h Dispatch)

Electrical & Core Specs:

The current ceiling of the ladder: 12A and 100W against the 8A/80W of the 13007, same B-C-E lead order, same 400V sustaining figure - the safe direction of the ladder, with the TO-3P body available where dissipation mattered.

Same 400V VCEO / 700V VCBO pair of ratings as every member.

Compatibility & Drop-In Notes: Direction rule: 13009 into a 13007 socket is headroom; 13007 into a 13009 position is legal only at re-measured lower load. And in half-bridge duty, fit the pair together - one big and one small die unbalances sharing.
Package & Solder Footprint: Same TO-220 footprint; the base network travels with the transistor as always.
Shenzhen Warehouse Stock & MOQ: Stocked across the ladder; quote pairs against the load.
Request Volume Quote for MJE13009 Compare ST13009 vs MJE13009 Spec Matrix
MJE13005 onsemi / STMicroelectronics TO-220
Functional Equivalent
Availability & Target Pricing:

The 4A Adapter-Class Rung

Shenzhen Spot Stock (24-48h Dispatch)

Electrical & Core Specs:

The bottom rung of the power ladder: 4A and 75W - the adapter, charger and ballast part, same pin order, same voltage pair, a third of the current.

Identical 400V/700V ratings - the ladder moves current and dissipation only.

Compatibility & Drop-In Notes: Down-ladder discipline: measure the working current, not the nameplate - a repair that downgrades on the assumption that the big part was oversized will find out at full load.
Package & Solder Footprint: TO-220, B-C-E, tab on the collector.
Shenzhen Warehouse Stock & MOQ: Stocked; the low-cost rung for loads that measure small.
Request Volume Quote for MJE13005 Compare ST13009 vs MJE13005 Spec Matrix
MJE13007A / MJE13007AH onsemi TO-220
100% Drop-in (Zero Code Change)
Availability & Target Pricing:

The 450V Grade for 220-240V Mains

Shenzhen Spot Stock (24-48h Dispatch)

Electrical & Core Specs:

The suffix grades raise the dielectric: VCEO 450V and VCBO toward 800-850V where the base part carries 400V/700V - the honest choice for 220-240VAC input stages and ballast transients.

The whole point of the suffix: more sustaining and blocking headroom at the same current class.

Compatibility & Drop-In Notes: Grading up in voltage is free at the circuit level; fitting the base grade into a socket that ate two predecessors is how the third failure gets scheduled.
Package & Solder Footprint: Same TO-220 body and pin order.
Shenzhen Warehouse Stock & MOQ: Stocked; order by suffix, not by family.
Request Volume Quote for MJE13007A / MJE13007AH Compare ST13009 vs MJE13007A / MJE13007AH Spec Matrix
Buyer & Quality Checklist for Sourcing Alternatives
  • The two voltage numbers are simultaneous ratings, not alternatives: VCEO 400V (sustaining, used by the circuit) and VCBO 700V (blocking, a junction limit) on every member of the ladder. The "700V transistor" phrasing in repair lists is a datasheet misread.
  • B-C-E lead order with the tab on the collector: unlike the small-signal E-B-C culture, a flipped insertion here puts the base drive on the heatsink - and the circuit fails in ways that look like a dead part.
  • These are bipolars in MOSFET positions: ATX half-bridge and two-transistor forward stages deliver real base current through a drive transformer and network. Substituting a MOSFET, or trusting a "MOSFET equivalent" claim, fails on drive topology before it fails on parameters.
  • The base network dies with the transistor. Replace the surrounding base resistors, diodes and drive-rail parts in the same repair, or the fresh 13007 inherits the fault that killed the first one.
  • Ladder direction: up freely (12A/100W into an 8A socket), down only with the load re-measured (4A/75W is a third of the current). In half-bridge duty fit both sides in one generation - mixed dies unbalance current sharing.
  • For 220-240VAC and ballast duty, order the A / AH suffix grades (450V VCEO, VCBO toward 800-850V) rather than the base part - repeated mains-transient failures in the same socket are a voltage-grade complaint, not a brand one.
Frequently Asked Technical Questions

Q: Can MJE13009 replace MJE13007?

A: Yes - it is the safe direction of the ladder: 12A/100W against 8A/80W, same B-C-E pin order and the same 400V/700V ratings, with TO-220 and TO-3P bodies available. The reverse substitution is legal only after the working current is re-measured.

Q: Is the MJE13007 a 400V or a 700V transistor?

A: Both at once: VCEO 400V (collector-emitter, the sustaining rating the circuit lives on) and VCBO 700V (collector-base, a junction blocking limit). They are two specifications of one part, not two parts.

Q: Can I use a MOSFET instead of an MJE13007?

A: Not without redesigning the drive: the 13007 is an NPN bipolar driven by base current through a network, and a MOSFET needs voltage drive with its own gate circuit. The TO-220 position looks the same; the drive requirement is a different kind of thing.

Technical details

400 V, 12 A NPN — the TO-220 that handles the heavy lift

The ST13009: This puts it in the class of high-voltage switching transistors for off-line power supplies, fluorescent lamp ballasts, and medium-power inverters where a single TO-220 part handles the primary-side switch. The 2.5 V saturation voltage at 3 A base current and 12 A collector current (Vce(sat) max @ Ib=3A, Ic=12A) tells you the conduction loss at full load: at 12 A, expect about 30 W of dissipation in the saturated state, which drives the heatsinking requirement. The DC current gain of 10 minimum at 8 A, 5 V (hFE min @ Ic=8A, Vce=5V) confirms this is a high-current, moderate-gain device — the base drive needs to be sized accordingly.

TO-220 package — will it survive the hot air?

Housed in a TO-220-3 through-hole package, the ST13009 is a rework-friendly part. The tab is the collector, and the pinout is standard: base, collector, emitter left to right with the tab facing away. The copper tab is large enough to sink heat from a soldering iron on the collector pin without lifting the pad, as long as the iron tip is clean and the dwell time stays under 5 seconds per joint. Mounting is through-hole, so the leads go into plated holes on the PCB. The tab is typically soldered to a copper pour for heatsinking or bolted to an external heatsink with a TO-220 mounting clip and thermal pad. The tube packaging keeps the leads straight for auto-insertion.

ST13009
[ALLOC] verified
Quote
Parts A–Z