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

STMicroelectronics 2STBN15D100

Name: 2STBN15D100
Brand: STMicroelectronics
SKU: 2STBN15D100
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2STBN15D100

Manufacturer:: STMicroelectronics

Category:: Single Bipolar Transistors

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: 2STBN15D100.pdf

Description:: TRANS NPN DARL 100V 12A TO263

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Inventory:4,750

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Product details

Overview

2STBN15D100 from STMicroelectronics is a low-voltage NPN power Darlington transistor in monolithic configuration with integrated antiparallel collector-emitter diode, rated for V_CEO = 100 V, I_C = 12 A, P_TOT = 70 W at T_C = 25 °C, and h_FE ≥ 750 at I_C = 3 A - used in industrial linear amplification and high-current switching circuits.

For engineers reviewing the 2STBN15D100 datasheet, 2STBN15D100 pinout, 2STBN15D100 application, or 2STBN15D100 equivalent, key selection considerations include its monolithic Darlington gain linearity, integrated clamping diode, D²PAK thermal performance (R_thJC = 1.8 °C/W), and suitability for DC motor drives and analog output stages requiring stable high-beta operation.

Technical Context

This device implements a planar "base island" layout to ensure uniform current distribution and thermal stability across the Darlington pair. Its integrated antiparallel diode enables bidirectional current handling without external components, supporting safe commutation in inductive load switching.

The Darlington structure delivers high DC current gain (h_FE ≥ 750) while maintaining low V_CE(sat) (≤1.3 V at I_C = 4 A, I_B = 4 mA) and fast f_T - critical for minimizing conduction loss and enabling moderate-speed switching in industrial control outputs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	100 V - maximum sustainable collector-emitter voltage under open-base conditions, defining safe operating area for inductive load switching.
I_C	12 A continuous - rated collector current at T_C = 25 °C, enabling use in high-power linear regulators and motor driver output stages.
P_TOT	70 W at T_C = 25 °C - total dissipation capability, supported by D²PAK package and R_thJC = 1.8 °C/W for heatsink-coupled thermal management.
h_FE	≥750 at I_C = 3 A - high and linear DC current gain ensures precise base drive scaling and reduced driver-stage complexity.
V_F	≤2.5 V at I_F = 3 A - forward voltage of integrated antiparallel diode, limiting flyback energy dissipation during inductive turn-off.
R_thJC	1.8 °C/W - junction-to-case thermal resistance, enabling predictable thermal design when mounted on a heatsink with known interface resistance.

Pinout & Package

Package: D²PAK (TO-263) type A - surface-mount power package with exposed metal tab for direct thermal coupling to heatsink; compliant with ECOPACK environmental standards.

Pin/Terminal	Circuit Role	Design Meaning
B (1)	Base	Control input terminal; internal 8 kΩ base resistor enables simplified biasing in switching applications.
C (2, TAB)	Collector / Heatsink Interface	Collector connection tied to exposed metal tab - electrically active and thermally conductive; must be isolated from chassis unless referenced to system ground.
E (3)	Emitter	Output/return path; internal 150 Ω emitter resistor improves current sharing and short-circuit robustness in Darlington configuration.

Key Features

Feature	Design Value
Monolithic Darlington + integrated diode	Eliminates need for external flyback diode and discrete Darlington wiring, reducing PCB footprint and parasitic inductance in motor drive outputs.
High h_FE linearity	Enables accurate analog current mirroring and stable closed-loop gain in linear amplifier stages without dynamic gain compression.
D²PAK thermal performance	R_thJC = 1.8 °C/W supports >50 W sustained dissipation with standard heatsinking - suitable for unregulated power stage designs.
Internal base and emitter resistors	R_B = 8 kΩ and R_E = 150 Ω provide built-in current limiting and improve SOA robustness during transient overloads.

Applications

DC Motor Drive Output Stage

Linear Regulator Pass Element

Use Scenario: High-current H-bridge half-bridge output driving 24 V brushed DC motors up to 10 A continuous.

IC Role / Device Role / Timing Role: Power switching element with integrated flyback diode, configured as low-side or high-side switch depending on topology.

Use Value: Eliminates external clamp diode and reduces gate-drive complexity due to high h_FE, enabling compact, thermally efficient motor control PCBs.

Use Scenario: Unregulated linear power supply delivering 5–12 V at 3–6 A for industrial sensor signal conditioning.

IC Role / Device Role / Timing Role: Series pass transistor regulating output voltage via feedback-controlled base current.

Use Value: High h_FE minimizes base drive power loss; low V_CE(sat) reduces dropout voltage and improves efficiency at full load.

Inductive Load Switching Module

Analog Current Amplifier Stage

Use Scenario: Solid-state relay replacement switching solenoids, valves, or contactors rated up to 100 V and 8 A.

IC Role / Device Role / Timing Role: Main switching transistor with integrated diode for inductive energy recirculation during turn-off.

Use Value: Integrated diode ensures reliable turn-off without voltage overshoot; D²PAK mounting simplifies thermal design in DIN-rail mounted modules.

Use Scenario: Precision 4–20 mA transmitter output stage amplifying DAC voltage to proportional loop current.

IC Role / Device Role / Timing Role: Linear current source transistor operating in active region with feedback-stabilized emitter current.

Use Value: Good h_FE linearity ensures <±0.5% gain error across 0–20 mA range; internal R_E improves current-source stability against temperature drift.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN Darlington power transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BDW93C	V_CEO = 100 V, I_C = 12 A, but no integrated diode or internal resistors; TO-220 package with higher R_thJC = 3.5 °C/W.	Requires external flyback diode and base resistor network; less suitable for space-constrained or high-reliability inductive switching.	Select when cost sensitivity outweighs board area and thermal performance requirements.
MJD127	V_CEO = 100 V, I_C = 8 A, h_FE = 1000–3000, no integrated diode, DPAK package, R_thJC = 2.5 °C/W.	Higher gain but lower current rating and missing integrated diode - requires redesign of protection circuitry.	Select only if gain linearity is prioritized over current capacity and diode integration.

Compared with BDW93C and MJD127, the 2STBN15D100 uniquely combines monolithic Darlington gain, integrated clamping diode, and D²PAK thermal efficiency - making it optimal for compact, thermally demanding industrial switching and linear output stages where reliability and component count reduction are critical.

Availability

2STBN15D100 is available at Aetrix Electronics and suitable for DC motor drives, industrial linear regulators, and inductive load switching modules requiring stable component supply and long-term production continuity.

Supply support for 2STBN15D100 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 microcontrollers, power transistors, sensors, and analog ICs for industrial, automotive, and consumer applications.

The 2STBN15D100 belongs to ST's high-reliability power bipolar transistor family, engineered specifically for ruggedized industrial control systems where thermal robustness, gain stability, and integrated protection reduce system-level design risk.

FAQ

What is the function of the internal 8 kΩ and 150 Ω resistors in the 2STBN15D100?

The 8 kΩ base resistor limits base current during turn-on to prevent driver-stage overload and improve switching consistency. The 150 Ω emitter resistor enhances current sharing between Darlington stages and increases short-circuit tolerance by introducing negative feedback - both are monolithically integrated to eliminate external components and improve reliability.

Can the 2STBN15D100 be used in parallel configurations?

Parallel operation is not recommended without external emitter resistors and matched thermal mounting. The device lacks built-in emitter ballasting beyond its internal 150 Ω resistor, and parameter spread (especially h_FE) may cause current imbalance. For >12 A applications, use a single higher-rated device or consult ST's application note AN419 for derating guidelines.

Is the metal tab electrically isolated from the collector in the D²PAK package?

No - the metal tab is internally connected to the collector (pin 2). It must be electrically insulated from the heatsink unless the collector node is at system ground potential. Use insulating thermal pads or mica washers with appropriate dielectric rating (≥250 V) when mounting to grounded heatsinks.

Does the integrated antiparallel diode support reverse current in bidirectional motor control?

The integrated diode conducts only from collector to emitter (forward-biased when collector is negative relative to emitter), so it clamps inductive kickback during turn-off but does not support continuous reverse current flow. For true bidirectional motor control, external H-bridge diodes or complementary transistor pairs are required.

2STBN15D100 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: NPN - Darlington

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

Voltage - Collector Emitter Breakdown (Max):: 100 V

Vce Saturation (Max) @ Ib, Ic:: 1.3V @ 4mA, 4A

Current - Collector Cutoff (Max):: 100µA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 750 @ 3A, 3V

Power - Max:: 70 W

Frequency - Transition:: -

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-263 (D2PAK)

2STBN15D100 FAQ

1.How can I place an order for 2STBN15D100 through Aetrix?

Please submit a Request for Quotation (RFQ) for 2STBN15D100 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 2STBN15D100 reliable?

The price and inventory of 2STBN15D100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2STBN15D100 is usually 5 days.

3.What payment methods are accepted for 2STBN15D100?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2STBN15D100 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2STBN15D100?

2STBN15D100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2STBN15D100 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 2STBN15D100?

For technical support, including 2STBN15D100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2STBN15D100 requirements.

6.How does Aetrix verify that 2STBN15D100 is sourced from the original manufacturer or authorized distributors?

All 2STBN15D100 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 2STBN15D100 meets industry standards.

7.What is the process for return or replacement of 2STBN15D100?

All 2STBN15D100 units undergo pre-shipment inspection (PSI). If there is an issue with 2STBN15D100, 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 2STBN15D100 part is unused and in its original packaging.

Return procedure for 2STBN15D100:

1.Submit a request within 90 days.

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

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