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

STMicroelectronics 2STF1360

Name: 2STF1360
Brand: STMicroelectronics
SKU: 2STF1360
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2STF1360

Manufacturer:: STMicroelectronics

Category:: Single Bipolar Transistors

Package:: TO-243AA

Datasheet:: 2STF1360.pdf

Description:: TRANS NPN 60V 3A SOT-89-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

2STF1360 from STMicroelectronics is a low-voltage, fast-switching NPN power transistor in SOT-89 package, rated for 60 V V_CEO, 3 A continuous collector current, and 1.4 W power dissipation at T_amb = 25 °C. It delivers very low V_CE(sat) (130–300 mV at I_C = 2–3 A), high DC current gain (h_FE = 80–400), and fast switching (t_d/t_r/t_s/t_f ≤ 20/100/720/65 ns) for LED driver and relay drive applications.

For engineers reviewing the 2STF1360 datasheet, 2STF1360 pinout, 2STF1360 application, or 2STF1360 equivalent, key selection criteria include saturation voltage under 3 A load, thermal resistance of 89 °C/W (R_thJA), switching timing in resistive-load configurations, and compatibility with 6 V E_BE max and 80 V C-B breakdown ratings.

Technical Context

This device uses ST's low-voltage planar technology with double metal process to achieve simultaneous high h_FE and low V_CE(sat). Its 130 mV V_CE(sat) at I_C = 2 A / I_B = 100 mA enables efficient low-drop switching in 5–12 V systems.

With f_T = 130 MHz and sub-100 ns rise/fall times under 3 A resistive load, it supports high-frequency PWM control. The SOT-89 package provides moderate thermal performance (R_thJA = 89 °C/W) without requiring a heatsink for <1.2 W steady-state dissipation.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	60 V - Supports operation in 48 V nominal systems with margin against transients
I_C (continuous)	3 A - Drives medium-power loads such as 12 V relays or multi-string LED arrays
V_CE(sat)	130–300 mV - Minimizes conduction loss and self-heating at full load
h_FE	80–400 - Enables direct MCU GPIO drive with low base current (≤150 mA)
t_s + t_f	785 ns max - Ensures clean turn-off in PWM dimming up to ~1 MHz
R_thJA	89 °C/W - Requires ≥1 cm² copper pour for safe 1.2 W operation at ambient ≤70 °C
f_T	130 MHz - Confirms suitability for high-speed switching, not RF amplification

Pinout & Package

SOT-89 package: surface-mount, 3-terminal plastic case with exposed emitter tab for thermal and electrical connection. Standard pin assignment per Figure 1 and Table 7: Pin 1 = Emitter (tab), Pin 2 = Base, Pin 3 = Collector.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Tab)	Emitter	Electrically and thermally connected to PCB copper; primary heat path and return node
Pin 2	Base	Low-impedance control input; requires ≤150 mA peak drive for full saturation
Pin 3	Collector	High-current output node; connects to load supply rail (e.g., 12 V LED anode or relay coil)

Key Features

Feature	Design Value
Very low V_CE(sat)	130 mV @ I_C = 2 A - Reduces power loss by >50% vs. standard general-purpose transistors
High h_FE across operating range	Min 80 @ I_C = 1 A - Allows single-stage drive from 3.3 V or 5 V logic without external amplification
Fast storage time control	t_s = 620–720 ns - Optimized for rapid turn-off in PWM-controlled lighting and solenoid drivers
ECOPACK® compliant packaging	SOT-89 with lead-free, RoHS-compliant finish - Meets industrial and consumer environmental compliance requirements

Applications

Emergency Lighting

LED Driver

Use Scenario: Constant-current switching stage in battery-backed emergency exit sign with 12 V input and 350 mA LED string.

IC Role / Device Role / Timing Role: NPN switch controlling LED cathode path; driven by PWM controller at 1–10 kHz.

Use Value: 130 mV V_CE(sat) limits conduction loss to <40 mW, preserving battery runtime during extended outages.

Use Scenario: High-side current sink for RGB LED backlight in industrial HMI panel with 5 V supply.

IC Role / Device Role / Timing Role: Low-side switch modulating individual LED strings via MCU GPIO with 100 ns–1 µs pulse widths.

Use Value: 720 ns storage time ensures minimal tail current, enabling accurate 8-bit PWM grayscale without color shift.

Voltage Regulation

Relay Drive

Use Scenario: Pass transistor in linear post-regulator for 3.3 V LDO supplying noise-sensitive analog circuitry.

IC Role / Device Role / Timing Role: Medium-current series pass element; biased in active region for ripple suppression.

Use Value: h_FE ≥ 160 at I_C = 100 mA ensures stable bias with minimal base current variation over temperature.

Use Scenario: Coil driver for 12 V SPDT automotive relay in body control module.

IC Role / Device Role / Timing Role: Saturated switch turning relay on/off within 10 ms response window.

Use Value: 3 A I_C rating and 5 A I_CM handle relay inrush (≈2 A) with 2× safety margin and no secondary snubber needed.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MJD13005T4	V_CEO = 400 V, I_C = 4 A, R_thJA = 70 °C/W (TO-252), V_CE(sat) = 1.5 V @ 2 A	Higher voltage rating but 5× higher saturation voltage - unsuitable for low-drop 12 V systems	Select only when >100 V blocking is required; avoid where efficiency or thermal budget is constrained.
ZTX851	V_CEO = 60 V, I_C = 1 A, SOT-89, V_CE(sat) = 200 mV @ 500 mA, R_thJA = 120 °C/W	Lower current rating and worse thermal resistance - derates to ≤0.7 A continuous in same PCB layout	Acceptable for <0.5 A loads; insufficient for 3 A relay or multi-string LED drive without redesign.

Compared with MJD13005T4 and ZTX851, the 2STF1360 uniquely balances 3 A capability, sub-300 mV saturation, and SOT-89 thermal performance-making it optimal for space-constrained 12 V switching where both current and efficiency matter.

Availability

2STF1360 is available at Aetrix Electronics and suitable for emergency lighting, LED driver modules, and relay drive circuits requiring stable component supply and long-term industrial availability.

Supply support for 2STF1360 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 microcontrollers, power transistors, sensors, and analog ICs for industrial, automotive, and consumer markets.

The 2STF1360 belongs to ST's low-voltage power transistor family, engineered specifically for high-efficiency, medium-current switching in cost-sensitive 5–24 V embedded systems.

FAQ

Is the 2STF1360 pin-compatible with the 2STN1360?

No. The 2STF1360 uses SOT-89 (Pin 1 = Emitter/tab, Pin 2 = Base, Pin 3 = Collector), while the 2STN1360 uses SOT-223 with different pinout (Pin 1 = Emitter, Pin 2 = Collector, Pin 3 = Base, Pin 4 = Emitter/tab). Layout and footprint are not interchangeable without redesign.

Can the 2STF1360 replace a BC337 in a 12 V relay driver?

Yes, with design validation. The 2STF1360 handles 3 A vs. BC337's 0.8 A, has lower V_CE(sat) (130 mV vs. ~200 mV), and higher h_FE. However, its SOT-89 thermal resistance (89 °C/W) demands larger copper area than BC337's TO-92, and base drive must scale to 150 mA for full saturation.

What is the maximum safe operating frequency for PWM switching?

Based on t_s + t_f = 785 ns max and recommended 2% duty cycle for pulse testing, the practical upper limit for reliable saturated switching is ~100 kHz. At higher frequencies, incomplete turn-off increases average power dissipation and risks thermal runaway without active cooling.

Does the 2STF1360 require a base resistor when driven by a 3.3 V MCU GPIO?

Yes. With h_FE ≥ 80 at I_C = 1 A, a 150 mA base current is needed for 3 A saturation. A 22 Ω resistor limits base current to ≈120 mA (assuming 0.7 V V_BE drop), ensuring robust saturation while staying within GPIO limits. Lower values risk exceeding MCU output capability.

2STF1360 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-243AA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 3 A

Voltage - Collector Emitter Breakdown (Max):: 60 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 150mA, 3A

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 160 @ 1A, 2V

Power - Max:: 1.4 W

Frequency - Transition:: 130MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-89-3

2STF1360 FAQ

1.How can I place an order for 2STF1360 through Aetrix?

Please submit a Request for Quotation (RFQ) for 2STF1360 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 2STF1360 reliable?

The price and inventory of 2STF1360 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2STF1360 is usually 5 days.

3.What payment methods are accepted for 2STF1360?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2STF1360 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2STF1360?

2STF1360 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2STF1360 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 2STF1360?

For technical support, including 2STF1360 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2STF1360 requirements.

6.How does Aetrix verify that 2STF1360 is sourced from the original manufacturer or authorized distributors?

All 2STF1360 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 2STF1360 meets industry standards.

7.What is the process for return or replacement of 2STF1360?

All 2STF1360 units undergo pre-shipment inspection (PSI). If there is an issue with 2STF1360, 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 2STF1360 part is unused and in its original packaging.

Return procedure for 2STF1360:

1.Submit a request within 90 days.

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

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