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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

STMicroelectronics ST13009

Name: ST13009
Brand: STMicroelectronics
SKU: ST13009
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ST13009

Manufacturer:: STMicroelectronics

Category:: Single Bipolar Transistors

Package:: TO-220-3

Datasheet:: ST13009.pdf

Description:: TRANS NPN 400V 12A TO-220

Quantity:: RFQ Add To RFQ list

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Inventory:1,153

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Product details

Overview

ST13009 from STMicroelectronics is a high-voltage fast-switching NPN power transistor manufactured using multi-epitaxial planar technology with hollow emitter structure, rated for V_CEO = 400 V, I_C = 12 A, and P_tot = 100 W at T_c = 25°C, optimized for switch-mode power supplies.

For engineers reviewing the ST13009 datasheet, ST13009 pinout, ST13009 application, or ST13009 equivalent, key selection criteria include V_CEV = 700 V capability, t_s/t_f ≤ 2.5 µs/110 ns switching performance, h_FE group L/H pre-selection, and TO-220 thermal resistance R_thj-case = 1.25 °C/W.

Technical Context

This device employs a high-voltage multi-epitaxial planar process with hollow emitter geometry to reduce minority carrier storage time and enhance switching speed. Its design supports inductive load switching at V_CC = 250 V with I_B1 = 1 A / I_B2 = −2 A drive conditions.

The transistor delivers sustained collector-emitter voltage V_CEO(sus) = 400 V at I_C = 10 mA under pulsed conditions (300 µs, ≤2% duty), and exhibits V_CE(sat) = 0.85–2.5 V across I_C = 4–12 A with corresponding base drive levels.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	400 V - maximum safe DC collector-emitter voltage with open base, defining primary breakdown margin in SMPS primary switches
I_C	12 A - continuous collector current rating at T_c = 25°C, determining RMS current handling in hard-switched converters
P_tot	100 W - total power dissipation limit at case temperature 25°C, requiring heatsinking for >50 W operation
t_s/t_f	1.6–2.5 µs / 60–110 ns - storage and fall times under standardized inductive load test (V_CC = 250 V, L = 200 µH), directly impacting switching loss
h_FE	15–39 - DC current gain range across pre-selected groups (L: 15–26, H: 26–39 at I_C = 5 A, V_CE = 5 V), affecting base drive design margin
R_thj-case	1.25 °C/W - junction-to-case thermal resistance, enabling calculation of junction temperature rise above heatsink temperature

Pinout & Package

ST13009 is housed in a TO-220 package with isolated tab (collector-connected), standard three-terminal configuration, and mechanical dimensions per ST Doc ID 11491 Rev 3 (e.g., D = 15.25–15.75 mm, L = 13–14 mm).

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Emitter terminal	Low-impedance current return path; connected to ground or low-side reference in flyback/forward topologies
2 (Base)	Control input	Receives current-driven turn-on/turn-off signals; requires ≥1 A peak drive for full saturation at I_C = 12 A
3 (Collector)	High-voltage output	Connected to primary winding and HV rail; electrically tied to metal tab for thermal conduction and EMI shielding

Key Features

Feature	Design Value
Hollow emitter structure	Reduces minority carrier storage time, enabling t_s ≤ 2.5 µs and supporting >50 kHz SMPS operation
High V_CEV rating	700 V blocking capability with V_BE = −1.5 V ensures robustness against voltage spikes in offline converters
Pre-selected h_FE groups	L and H gain bins (15–26 and 26–39) allow consistent base drive design across production lots
Low lot-to-lot parameter spread	Minimizes variation in V_CE(sat), h_FE, and switching times, reducing need for system-level calibration

Applications

Offline AC-DC Adapters

Industrial SMPS

Use Scenario: 30–100 W universal-input flyback converter powering consumer electronics.

IC Role / Device Role / Timing Role: Primary-side power switch controlling energy transfer during each switching cycle.

Use Value: V_CEO = 400 V withstands reflected flyback voltage plus line surge; t_f ≤ 110 ns limits turn-off losses at 65 kHz.

Use Scenario: 200–500 W forward or half-bridge converter in PLC power modules.

IC Role / Device Role / Timing Role: Main switching element in primary-side power stage, driven by gate transformer or optocoupled driver.

Use Value: P_tot = 100 W and R_thj-case = 1.25 °C/W support stable operation with forced-air cooling; h_FE binning simplifies base resistor selection.

LED Driver Power Stages

UPS Inverter Stages

Use Scenario: Constant-current LED driver for street lighting with wide input range (90–305 VAC).

IC Role / Device Role / Timing Role: High-side switch in buck-derived topology regulating LED string current.

Use Value: V_CEV = 700 V accommodates worst-case line transients; low V_CE(sat) = 0.85 V at I_C = 4 A reduces conduction loss in high-duty-cycle operation.

Use Scenario: Low-frequency (50/60 Hz) push-pull inverter stage converting 24–48 VDC to AC in small UPS systems.

IC Role / Device Role / Timing Role: Hard-switched power switch operating in linear or saturated mode depending on modulation scheme.

Use Value: I_CM = 24 A peak rating handles surge currents during battery start-up; TO-220 package enables direct mounting to chassis for thermal management.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage NPN power transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BU508A	V_CEO = 1000 V, I_C = 15 A, t_f ≈ 200 ns - higher voltage rating but slower switching	Better suited for 115/230 VAC input with large safety margins; less optimal for high-frequency SMPS	Select when absolute overvoltage robustness outweighs switching loss concerns
MJE13009	Same V_CEO/I_C ratings, but h_FE un-binned (8–40); R_thj-case = 1.5 °C/W - slightly lower thermal performance	Widely available but higher parameter variability affects base drive consistency in volume production	Choose for cost-sensitive designs where gain tolerance and thermal margin are acceptable

Compared with BU508A and MJE13009, ST13009 offers superior switching speed (t_f ≤ 110 ns vs. ~200 ns) and tighter h_FE control, making it preferred for compact, high-efficiency SMPS where thermal design margin and drive predictability are critical.

Availability

ST13009 is available at Aetrix Electronics and suitable for offline AC-DC adapters, industrial switch-mode power supplies, LED driver power stages, and UPS inverter stages requiring stable component supply and long-term manufacturability.

Supply support for ST13009 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs and discrete devices for automotive, industrial, and power applications.

ST13009 belongs to ST's high-voltage bipolar power transistor product line, engineered specifically for reliable, high-efficiency switching in mains-powered power conversion systems up to 500 W.

FAQ

Is ST13009 RoHS-compliant and halogen-free?

Yes. ST13009 is offered in ECOPACK®-compliant TO-220 packages meeting RoHS Directive 2011/65/EU and halogen-free requirements per ST's environmental specifications. The device carries the "ECOPACK2" designation indicating full compliance with lead-free soldering and material restrictions.

What is the recommended base drive circuit for ST13009 in a 65 kHz flyback converter?

A current-driven base circuit with ±2 A peak capability is recommended: use a 1:1 pulse transformer or dedicated bipolar driver (e.g., UCC27324) delivering I_B1 = 1 A for turn-on and I_B2 = −2 A for active turn-off, ensuring t_s ≤ 2.5 µs and minimizing switching losses at full load.

Does ST13009 require a snubber network in typical SMPS applications?

Yes - due to its high dV/dt capability and inductive switching stress, a passive RCD snubber across collector-emitter is recommended, especially in flyback topologies with leakage inductance >2% of magnetizing inductance, to clamp V_CE spikes above 450 V and prevent secondary breakdown.

How does h_FE binning (Group L vs. Group H) affect base resistor selection?

Group L (h_FE = 15–26) requires ~2× higher base current than Group H (h_FE = 26–39) for the same collector current. For I_C = 8 A, use R_B ≈ 12 Ω for Group L versus R_B ≈ 22 Ω for Group H with V_BB = 15 V, ensuring saturation while avoiding excessive base power dissipation.

ST13009 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Last Time Buy

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 12 A

Voltage - Collector Emitter Breakdown (Max):: 400 V

Vce Saturation (Max) @ Ib, Ic:: 2.5V @ 3A, 12A

Current - Collector Cutoff (Max):: -

DC Current Gain (hFE) (Min) @ Ic, Vce:: 10 @ 8A, 5V

Power - Max:: 100 W

Frequency - Transition:: -

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220

ST13009 FAQ

1.How can I place an order for ST13009 through Aetrix?

Please submit a Request for Quotation (RFQ) for ST13009 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for ST13009 reliable?

The price and inventory of ST13009 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST13009 is usually 5 days.

3.What payment methods are accepted for ST13009?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST13009 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ST13009?

ST13009 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ST13009 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for ST13009?

For technical support, including ST13009 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST13009 requirements.

6.How does Aetrix verify that ST13009 is sourced from the original manufacturer or authorized distributors?

All ST13009 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ST13009 meets industry standards.

7.What is the process for return or replacement of ST13009?

All ST13009 units undergo pre-shipment inspection (PSI). If there is an issue with ST13009, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The ST13009 part is unused and in its original packaging.

Return procedure for ST13009:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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