STMicroelectronics 2STBN15D100T4
- Part No.:
- 2STBN15D100T4
- Manufacturer:
- STMicroelectronics
- Category:
- Single Bipolar Transistors
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
2STBN15D100T4.pdf
- Description:
- TRANS NPN DARL 100V 12A TO263
- Quantity:
- Payment:

- Shipping:

Inventory:7,320
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Product details
Overview
2STBN15D100T4 from STMicroelectronics is a low-voltage NPN power Darlington transistor in D²PAK (TO-263) package, featuring monolithic Darlington configuration with integrated antiparallel collector-emitter diode, hFE ≥ 750 at IC = 3 A, VCEO = 100 V, and fT optimized for high-frequency switching. It serves as main power switch in industrial linear and switching regulators.
For engineers reviewing the 2STBN15D100T4 datasheet, 2STBN15D100T4 pinout, 2STBN15D100T4 application, or 2STBN15D100T4 equivalent, key selection criteria include its 100 V VCEO rating, 12 A continuous collector current, integrated antiparallel diode, thermal resistance of 1.8 °C/W, and suitability for high-current linear amplification and hard-switching duty cycles.
Technical Context
The device uses planar "base island" layout to ensure stable hFE linearity across operating current range. Its monolithic Darlington structure integrates a built-in antiparallel C–E diode, eliminating need for external flyback protection in inductive load switching.
Designed for operation up to TJ = 150 °C, it delivers VCE(sat) ≤ 1.5 V at IC = 0.5 A / IB = 1 mA and ≤ 1.3 V at IC = 4 A / IB = 4 mA, supporting efficient conduction in both linear and saturated modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 100 V - supports operation in 48 V industrial bus systems with margin against transients |
| IC (cont) | 12 A - enables direct drive of medium-power solenoids, motor windings, and heating elements |
| hFE | ≥750 @ IC = 3 A - reduces required base drive current, easing driver stage design |
| RthJC | 1.8 °C/W - allows 70 W dissipation with modest heatsinking (e.g., 25 °C case temp → 150 °C junction) |
| VF (integrated diode) | ≤2.5 V @ IF = 3 A - provides low-loss freewheeling path for inductive loads without external diode |
| fT | High frequency - enables stable operation in PWM-based switching supplies up to several hundred kHz |
Pinout & Package
Package: D²PAK (TO-263), surface-mount, isolated tab (pin 3 = collector, electrically connected to tab).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control input; requires current-limited drive due to Darlington input impedance |
| 2 | Emitter | Power return node; must be low-inductance connection to ground/power rail |
| 3 (Tab) | Collector | Main power output; tab is electrically active and thermally critical - requires insulated mounting if not referenced to system ground |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic Darlington + antiparallel diode | Eliminates discrete diode placement and layout parasitics in relay/motor drivers |
| Good hFE linearity | Enables predictable gain across 0.1–10 A load range, critical for analog current regulation |
| Planar "base island" construction | Improves thermal stability and current sharing between internal Darlington stages |
| ECOPACK®-compliant D²PAK | Meets RoHS and halogen-free requirements without derating performance |
Applications
| Industrial DC Motor Control | Linear Regulator Pass Element |
|---|---|
Use Scenario: Driving 24–48 V brushed DC motors in PLC-controlled conveyors and actuators. IC Role / Device Role / Timing Role: Main power switch in H-bridge half-bridge or single-ended topology; handles bidirectional current with integrated diode commutation. Use Value: Reduces BOM count by integrating freewheeling diode, while 12 A rating supports peak stall currents up to 15 A. | Use Scenario: High-current series pass element in programmable lab power supplies. IC Role / Device Role / Timing Role: Linear regulator output stage; dissipates up to 70 W with controlled thermal rise via D²PAK tab. Use Value: hFE ≥ 750 minimizes base drive burden on error amplifier, enabling stable 0–10 A output with <1% load regulation. |
| Switched-Mode Power Supply Output Stage | Industrial Solenoid Driver |
Use Scenario: Primary-side switch in 100–500 W offline flyback or forward converters. IC Role / Device Role / Timing Role: Hard-switched power transistor operating at ≤200 kHz; leverages high fT and low VCE(sat) for efficiency. Use Value: VCEO = 100 V accommodates reflected flyback voltage from 24 V secondary with safety margin. | Use Scenario: Direct drive of 48 V/5 A industrial pneumatic solenoids in valve manifolds. IC Role / Device Role / Timing Role: High-current, fast-turn-off switch with integrated diode clamping inductive kickback. Use Value: VF ≤ 2.5 V limits clamp loss during turn-off, reducing thermal stress versus discrete diode solutions. |
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 |
|---|---|---|---|
| BUW13A | VCEO = 100 V, IC = 10 A, no integrated diode, TO-220 package | Requires external flyback diode; lower current rating; through-hole mounting | Preferred where mechanical robustness and serviceability outweigh SMT density benefits |
| MJD122G | VCEO = 100 V, IC = 8 A, hFE = 1000–2000, no integrated diode, DPAK | Higher hFE but lacks integrated diode; smaller die area limits safe operating area at high VCE | Best for low-base-drive, low-duty-cycle switching where diode can be added externally |
Compared with BUW13A and MJD122G, the 2STBN15D100T4 uniquely combines 12 A current capability, integrated antiparallel diode, and D²PAK thermal performance-making it optimal for space-constrained, high-reliability industrial switching where board-level diode omission improves yield and EMI behavior.
Availability
2STBN15D100T4 is available at Aetrix Electronics and suitable for industrial motor control, linear power regulation, switched-mode power supply output stages, and solenoid actuation requiring stable component supply and long-term manufacturability.
Supply support for 2STBN15D100T4 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, designing and manufacturing silicon solutions for automotive, industrial, and power applications.
The 2STBN15D100T4 belongs to ST's high-voltage, high-current bipolar power transistor family, engineered specifically for ruggedized industrial switching and linear regulation where reliability under thermal stress and integration of protection functions are critical.
FAQ
What is the maximum safe operating temperature for the 2STBN15D100T4 junction?
The absolute maximum operating junction temperature (TJ) is 150 °C per STMicroelectronics' datasheet Doc ID 16117 Rev 2. Operation above this limit risks permanent degradation of hFE and increased leakage. Derating is required above Tcase = 25 °C using RthJC = 1.8 °C/W; for example, at 80 °C case temperature, max allowable power dissipation drops to 38.9 W.
Does the integrated antiparallel diode support reverse current during turn-off?
Yes - the monolithic antiparallel collector-emitter diode conducts reverse current during inductive load turn-off, clamping VCE to ≤2.5 V at IF = 3 A. This eliminates need for external flyback diodes in relay, solenoid, and motor drive circuits, reducing PCB area and parasitic inductance.
Can the 2STBN15D100T4 be used in parallel configurations?
Parallel operation is not recommended without individual emitter resistors and matched devices. The "base island" layout improves uniformity, but inherent hFE and VBE variations between units cause current imbalance. ST does not specify matching tolerances or recommend paralleling in datasheet Doc ID 16117 Rev 2.
Is the D²PAK tab electrically isolated from other pins?
No - the D²PAK tab is internally connected to pin 3 (collector) and is not electrically isolated. When mounted to a heatsink, electrical isolation (e.g., mica washer + thermal paste) is mandatory unless the heatsink is referenced to the collector potential. Failure to isolate may cause short-circuit or ground loop issues.
2STBN15D100T4 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:
- Obsolete
- 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)
2STBN15D100T4 FAQ
1.How can I place an order for 2STBN15D100T4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 2STBN15D100T4 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 2STBN15D100T4 reliable?
The price and inventory of 2STBN15D100T4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2STBN15D100T4 is usually 5 days.
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5.How can I obtain technical support or documentation for 2STBN15D100T4?
For technical support, including 2STBN15D100T4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2STBN15D100T4 requirements.
6.How does Aetrix verify that 2STBN15D100T4 is sourced from the original manufacturer or authorized distributors?
All 2STBN15D100T4 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 2STBN15D100T4 meets industry standards.
7.What is the process for return or replacement of 2STBN15D100T4?
All 2STBN15D100T4 units undergo pre-shipment inspection (PSI). If there is an issue with 2STBN15D100T4, 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 2STBN15D100T4 part is unused and in its original packaging.
Return procedure for 2STBN15D100T4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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