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STMicroelectronics 2ST1480FP
- Part No.:
- 2ST1480FP
- Manufacturer:
- STMicroelectronics
- Category:
- Single Bipolar Transistors
- Package:
- TO-220-3 Full Pack
- Datasheet:
-
2ST1480FP.pdf
- Description:
- TRANS NPN 80V 5A TO-220FP
- Quantity:
- Payment:
- Shipping:
Inventory:4,485
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Product details
Overview
2ST1480FP from STMicroelectronics is a low-voltage NPN power transistor fabricated with PB-HCD (Power Bipolar High Current Density) technology, delivering high DC current gain (hFE = 170–290 at IC = 0.5 A), low saturation voltage (VCE(sat) = 1 V @ IC = 3 A, IB = 300 mA), and fast switching (ton = 60 ns, toff = 450 ns). It is used in printer power stages and DC-DC converter output switches where high-current gain and thermal efficiency are critical.
For engineers reviewing the 2ST1480FP datasheet, 2ST1480FP pinout, 2ST1480FP application, or 2ST1480FP equivalent, key selection criteria include verified VCEO/VCBO = 80 V, IC = 5 A continuous rating, RthJC = 5 °C/W, TO-220FP insulated package suitability for heatsink-mounted industrial switching, and compatibility with 300 mA base drive circuits.
Technical Context
This NPN bipolar junction transistor operates as a medium-power, low-saturation switch in linear and saturated modes. Its PB-HCD process enables high current density while maintaining low VCE(sat) and high hFE across operating ranges - critical for minimizing conduction loss in 12–24 V DC-DC topologies.
The device features fully insulated TO-220FP packaging with electrically isolated collector tab, enabling direct mounting to grounded heatsinks without insulating washers. Thermal resistance junction-to-case is specified at 5 °C/W max, supporting 25 W total dissipation at Tc ≤ 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - supports 24 V system rails with ≥3× safety margin against transients |
| IC (cont.) | 5 A - enables single-transistor 60 W switching in printer motor drivers or buck converter outputs |
| VCE(sat) | 1 V @ IC = 3 A, IB = 300 mA - reduces conduction loss to ≤3 W at full load |
| hFE | 170–290 @ IC = 0.5 A - ensures reliable saturation with standard 300 mA base drive |
| ton / toff | 60 ns / 450 ns - suitable for ≤500 kHz PWM switching in non-resonant DC-DC converters |
| RthJC | 5 °C/W max - allows 25 W dissipation with ≤125 °C case-to-ambient delta under forced cooling |
Pinout & Package
Package: TO-220FP - fully insulated plastic package with electrically isolated collector tab; compatible with standard TO-220 heatsink mounts and tube packaging per ST's order code table.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Current sink terminal | Low-impedance return path; connected to ground or low-side shunt in switching configurations |
| 2 (Base) | Control input | Receives TTL/CMOS-compatible drive; requires 300 mA for full saturation at 3 A collector current |
| 3 (Collector) | High-current output node | Electrically isolated tab - may be directly bolted to grounded heatsink without insulation hardware |
Key Features
| Feature | Design Value |
|---|---|
| High DC current gain | hFE = 170–290 at IC = 0.5 A - reduces base drive circuit complexity and power loss |
| Low saturation voltage | VCE(sat) = 1 V @ IC = 3 A - cuts conduction loss by >40% vs. typical 1.5 V devices at same current |
| Fast switching speed | ton = 60 ns, toff = 450 ns - supports efficient operation up to 500 kHz in hard-switched converters |
| Insulated TO-220FP package | Collector tab isolation - eliminates need for mica washers or silicone pads in heatsink mounting |
Applications
| Printer Power Stage | DC-DC Converter Output Switch |
|---|---|
Use Scenario: Driving solenoids, stepper motor phases, or fuser lamp heaters in laser printers requiring intermittent 3–5 A pulses. IC Role / Device Role / Timing Role: NPN power switch controlling high-side or low-side loads via microcontroller GPIO with base driver. Use Value: High hFE ensures full saturation using low-cost 300 mA drivers; low VCE(sat) minimizes thermal stress during duty-cycled operation. | Use Scenario: Synchronous rectifier or main switch in 12 V input, 5 V/3 A buck converter for embedded control modules. IC Role / Device Role / Timing Role: Medium-frequency (≤500 kHz) power switch in non-isolated step-down topology. Use Value: 60 ns turn-on time enables precise PWM edge control; 5 °C/W RthJC supports stable operation with passive heatsinking. |
| Industrial Motor Driver | Power Supply Protection Switch |
Use Scenario: H-bridge half-bridge leg in 24 V DC brushed motor controllers for factory automation actuators. IC Role / Device Role / Timing Role: Low-side switching element commutating motor current with flyback diode support. Use Value: 80 V VCEO rating accommodates inductive kickback spikes up to 60 V; robust ICM = 10 A peak handles stall currents. | Use Scenario: Overcurrent protection switch in programmable power supplies, disconnecting load during fault conditions. IC Role / Device Role / Timing Role: Fast-acting series pass element controlled by comparator-based shutdown circuitry. Use Value: 450 ns turn-off time ensures sub-microsecond fault response; insulated package simplifies PCB layout in high-isolation designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN power switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BUK455-80B | MOSFET (80 V, 5.5 A); gate-driven, no base current required; RDS(on) = 0.3 Ω vs. VCE(sat) = 1 V | Better efficiency above 100 kHz; unsuitable for linear-mode biasing due to lack of hFE control | Prefer for high-frequency SMPS where gate drive is available and conduction loss dominates |
| BD249C | Bipolar (80 V, 15 A); higher IC but lower hFE (20–120); TO-126 package, non-insulated | Higher current headroom but requires insulating hardware and larger base drive (≥500 mA) | Prefer for cost-sensitive, lower-speed (<100 kHz), non-heatsinked applications where footprint is constrained |
Compared with BUK455-80B and BD249C, the 2ST1480FP uniquely balances high hFE, low VCE(sat), and insulated TO-220FP packaging - making it optimal for thermally demanding, medium-frequency, base-driven industrial switching where reliability and layout simplicity are prioritized over ultra-high frequency or lowest possible RDS(on).
Availability
2ST1480FP is available at Aetrix Electronics and suitable for printer power stages, DC-DC converter output switches, and industrial motor driver half-bridges requiring stable component supply and long-lifecycle support.
Supply support for 2ST1480FP 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, specializing in power discrete devices, microcontrollers, and analog ICs for industrial, automotive, and consumer markets.
The 2ST1480FP belongs to ST's legacy power bipolar transistor family, designed specifically for cost-effective, thermally robust switching in mid-power industrial equipment where high gain and low saturation voltage are essential.
FAQ
Is the 2ST1480FP still in active production?
No - STMicroelectronics has marked the 2ST1480FP as Obsolete (per Doc ID 16856 Rev 1, December 2009). However, Aetrix Electronics maintains legacy inventory with full traceability and offers extended supply support including last-time buy planning and cross-reference guidance for functional replacements.
Can the 2ST1480FP be used in linear amplifier applications?
It is not recommended. The device is optimized for switching operation - its high hFE and low VCE(sat) are specified under saturated switching conditions (IC = 3 A, IB = 300 mA). Linear mode operation risks thermal runaway due to limited SOA and absence of safe operating area curves in the datasheet.
What is the maximum allowable case temperature for continuous operation?
The absolute maximum junction temperature is 150 °C, and RthJC is 5 °C/W max. With a heatsink maintaining Tc ≤ 75 °C, the device can sustain 25 W dissipation continuously. Derating is required above Tc = 25 °C per the datasheet's thermal curve - at Tc = 75 °C, usable power drops to ~12.5 W.
Does the TO-220FP package require thermal compound when mounted to a heatsink?
Yes - although the collector tab is electrically insulated, thermal interface material (e.g., silicone grease or phase-change pad) is required to minimize thermal resistance between the tab and heatsink surface. The 5 °C/W RthJC rating assumes optimal mounting pressure and thermal interface performance.
2ST1480FP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack
- Packaging:
- Tube
- Product Status:
- Obsolete
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 5 A
- Voltage - Collector Emitter Breakdown (Max):
- 80 V
- Vce Saturation (Max) @ Ib, Ic:
- 1V @ 300mA, 3A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 170 @ 500mA, 5V
- Power - Max:
- 25 W
- Frequency - Transition:
- 120MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220FP
2ST1480FP FAQ
1.How can I place an order for 2ST1480FP through Aetrix?
Please submit a Request for Quotation (RFQ) for 2ST1480FP 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 2ST1480FP reliable?
The price and inventory of 2ST1480FP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2ST1480FP is usually 5 days.
3.What payment methods are accepted for 2ST1480FP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2ST1480FP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2ST1480FP?
2ST1480FP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2ST1480FP 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 2ST1480FP?
For technical support, including 2ST1480FP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2ST1480FP requirements.
6.How does Aetrix verify that 2ST1480FP is sourced from the original manufacturer or authorized distributors?
All 2ST1480FP 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 2ST1480FP meets industry standards.
7.What is the process for return or replacement of 2ST1480FP?
All 2ST1480FP units undergo pre-shipment inspection (PSI). If there is an issue with 2ST1480FP, 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 2ST1480FP part is unused and in its original packaging.
Return procedure for 2ST1480FP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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