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

Diodes Incorporated FZT1047ATA

Name: FZT1047ATA
Brand: Diodes Incorporated
SKU: FZT1047ATA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: FZT1047ATA

Manufacturer:: Diodes Incorporated

Category:: Single Bipolar Transistors

Package:: TO-261-4, TO-261AA

Datasheet:: FZT1047ATA.pdf

Description:: TRANS NPN 10V 5A SOT-223-3

Quantity:: RFQ Add To RFQ list

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Inventory:6,035

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Product details

Overview

FZT1047ATA from Diodes Incorporated is a 10V NPN medium-power transistor in SOT223 package, rated for 5A continuous collector current and 20A peak pulse current, with V_CE(sat) ≤ 40mV at 500mA and R_SAT = 44mΩ at 5A, used in high-current switching applications such as DC-DC converter output stages and motor drive half-bridges.

For engineers reviewing the FZT1047ATA datasheet, FZT1047ATA pinout, FZT1047ATA application, or FZT1047ATA equivalent, key selection criteria include verified V_CEO = 10V rating, h_FE ≥ 200 at 5A, thermal resistance R_θJA = 41.7°C/W (on 52mm × 52mm 2oz Cu), and RoHS-compliant matte tin-plated leads suitable for automotive-grade reflow.

Technical Context

This NPN bipolar junction transistor operates in linear or saturated switching mode with guaranteed BV_CEO ≥ 10V and BVCBO ≥ 35V, supporting low-voltage power rail control. Its h_FE remains ≥ 60 up to 20A, enabling stable gain hold-up under high-current transient loads.

V_CE(sat) is specified across four test conditions (500mA–5A), confirming consistent on-state performance; f_T = 150MHz ensures usable bandwidth for fast-switching PWM circuits, while ESD HBM rating of 4kV supports robust handling in automated assembly environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	10 V - Maximum safe collector-emitter voltage in open-base configuration; defines upper limit for low-voltage power switch operation.
I_C (continuous)	5 A - Sustained collector current capability; enables use in 5A-class load switches without forced cooling.
V_CE(sat) @ 5A	220–350 mV - Confirmed saturation voltage at full rated current; determines conduction loss and thermal rise in switching applications.
h_FE @ 5A	200–330 - Minimum DC current gain at 5A; ensures sufficient base drive margin for reliable saturation under load.
R_θJA	41.7 °C/W - Junction-to-ambient thermal resistance on 52mm × 52mm 2oz copper; sets maximum power dissipation limit at 3W in still air.
f_T	150 MHz - Current gain-bandwidth product; supports switching frequencies up to ~10–20MHz with adequate gain margin.
ESD HBM	4,000 V - Human Body Model rating per JESD22-A114; qualifies for standard SMT handling without special ESD controls.

Pinout & Package

Package: SOT223 (Type DN), surface-mount, 4-terminal plastic molded package with exposed collector tab for thermal conduction. Molded compound is halogen- and antimony-free ("Green"), UL 94V-0 rated.

Pin/Terminal	Circuit Role	Design Meaning
Emitter (E)	Current sink terminal	Connected to ground or low-side return path; electrically isolated from tab; requires direct PCB trace routing for low-inductance paths.
Base (B)	Control input	Drives transistor into saturation; requires 25mA base current for full 5A conduction; sensitive to overvoltage due to V_EBO = 7V limit.
Collector (C)	Current source terminal	Internally bonded to exposed metal tab; must be soldered to large copper pour for thermal management; electrically common with tab.
Collector Tab (Tab)	Thermal & electrical node	Primary heat dissipation path; electrically identical to Collector pin; requires isolation from other nets unless intentional common-collector topology.

Key Features

Feature	Design Value
Low R_SAT	44 mΩ at 5A - Enables <110mW conduction loss at full current, reducing heatsink requirements in compact power modules.
High I_CM	20 A peak pulse - Supports short-duration surge currents (e.g., motor startup, capacitor charging) without second breakdown.
Gain stability at high I_C	h_FE ≥ 60 at 20A - Maintains predictable base drive needs even during transient overload, simplifying gate/base driver design.
Automotive-ready qualification	AEC-Q101 capable - Meets stress-test requirements for discrete transistors in automotive electronics when manufactured in IATF 16949 facilities.

Applications

DC-DC Converter Output Stage

Brushed DC Motor Driver

Use Scenario: High-efficiency synchronous buck converter output switch operating from 12V input to 5V/3.3V rails delivering up to 5A continuous load.

IC Role / Device Role / Timing Role: NPN power switch in low-side configuration, driven by complementary MOSFET or dedicated gate driver IC.

Use Value: Low V_CE(sat) and 44mΩ R_SAT minimize conduction losses, improving efficiency >92% at full load while maintaining thermal stability on standard PCB copper.

Use Scenario: Unidirectional drive for 12V brushed DC motors in automotive HVAC actuators or industrial positioning systems.

IC Role / Device Role / Timing Role: Medium-power NPN switch controlling motor current flow through emitter-follower or common-emitter topology.

Use Value: 20A peak pulse rating handles stall currents; h_FE ≥ 200 at 5A ensures single-stage base drive sufficiency, eliminating need for Darlington pairing.

LED Constant-Current Driver

Industrial PLC Output Module

Use Scenario: High-brightness LED string driver in signage or lighting systems requiring precise 3–5A constant current regulation.

IC Role / Device Role / Timing Role: Linear or PWM-controlled pass element regulating current through external sense resistor.

Use Value: Tight V_CE(sat) tolerance (±25mV at 500mA) enables accurate current sensing; R_θJA = 41.7°C/W allows operation without heatsink at ambient ≤ 60°C.

Use Scenario: Solid-state replacement for electromechanical relays in programmable logic controller output cards driving solenoids or indicator lamps.

IC Role / Device Role / Timing Role: High-reliability discrete switch interfacing microcontroller GPIO to 24V industrial loads.

Use Value: 4kV ESD HBM rating prevents field failures during handling; RoHS/Green compliance meets industrial environmental mandates; SOT223 footprint supports automated optical inspection.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ZXTN1047F	Higher V_CEO = 15V; lower h_FE = 100 min @ 5A; SOT89 package with smaller thermal pad.	Less suitable for 10V-rail saturation-critical designs; limited thermal mass reduces sustained 5A capability without heatsink.	Prefer where higher breakdown margin is needed and board space is constrained.
MJD122G	Higher V_CEO = 100V; larger TO-220 package; h_FE = 50 min @ 5A; slower f_T = 3MHz.	Over-specified for low-voltage switching; unsuitable for high-frequency PWM due to bandwidth limitation.	Choose only when legacy TO-220 mounting or extreme voltage margin is required.

Compared with ZXTN1047F and MJD122G, FZT1047ATA delivers optimal balance of low V_CE(sat), high h_FE at 5A, and SOT223 thermal performance for 10V-system switching-making it preferred for space-constrained, efficiency-critical applications where 10V V_CEO is sufficient.

Availability

FZT1047ATA is available at Aetrix Electronics and suitable for DC-DC converters, brushed DC motor drivers, LED constant-current drivers, and industrial PLC output modules requiring stable component supply and automotive-grade reliability.

Supply support for FZT1047ATA 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.

FZT1047ATA belongs to Diodes' medium-power bipolar transistor product line, engineered specifically for high-current, low-voltage switching in automotive, industrial, and consumer power management systems where thermal efficiency and reliability are critical.

FAQ

Is FZT1047ATA qualified for automotive applications?

Yes - FZT1047ATA is AEC-Q101 qualified when produced in IATF 16949-certified facilities. It meets automotive change control requirements including PPAP capability and is designated for use in automotive electronics where specific reliability validation is mandated. Full qualification documentation is available upon request from Diodes Incorporated.

What is the recommended PCB layout for thermal performance?

The SOT223 package requires the collector tab to be soldered to a minimum 52mm × 52mm 2oz copper area for R_θJA = 41.7°C/W. The datasheet specifies pad dimensions: C = 2.30mm, C1 = 6.40mm, X1 = 3.30mm, Y2 = 8.00mm. Thermal vias under the tab are strongly recommended to enhance heat transfer to inner layers.

Can FZT1047ATA replace a MOSFET in low-side switching?

It can function as a low-side switch but differs fundamentally: as an NPN BJT, it requires continuous base current (25mA at 5A), whereas MOSFETs are voltage-driven. Its 44mΩ R_SAT offers competitive conduction loss, but switching speed (t_on/t_off ≈ 130/230ns) is slower than most logic-level MOSFETs, limiting use to ≤500kHz PWM.

Does FZT1047ATA have lead-free and halogen-free certification?

Yes - FZT1047ATA features matte tin-plated leads, complies with RoHS 2015/863/EU (RoHS 3), and is certified "Green" per Diodes' definition: <900ppm bromine, <900ppm chlorine (<1500ppm total Br+Cl), and <1000ppm antimony. UL 94V-0 flammability rating and J-STD-020 Level 1 moisture sensitivity are also confirmed.

FZT1047ATA Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-261-4, TO-261AA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 5 A

Voltage - Collector Emitter Breakdown (Max):: 10 V

Vce Saturation (Max) @ Ib, Ic:: 350mV @ 25mA, 5A

Current - Collector Cutoff (Max):: 10nA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 300 @ 1A, 2V

Power - Max:: 2.5 W

Frequency - Transition:: 150MHz

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223-3

FZT1047ATA FAQ

1.How can I place an order for FZT1047ATA through Aetrix?

Please submit a Request for Quotation (RFQ) for FZT1047ATA 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 FZT1047ATA reliable?

The price and inventory of FZT1047ATA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FZT1047ATA is usually 5 days.

3.What payment methods are accepted for FZT1047ATA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FZT1047ATA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for FZT1047ATA?

FZT1047ATA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your FZT1047ATA 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 FZT1047ATA?

For technical support, including FZT1047ATA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FZT1047ATA requirements.

6.How does Aetrix verify that FZT1047ATA is sourced from the original manufacturer or authorized distributors?

All FZT1047ATA 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 FZT1047ATA meets industry standards.

7.What is the process for return or replacement of FZT1047ATA?

All FZT1047ATA units undergo pre-shipment inspection (PSI). If there is an issue with FZT1047ATA, 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 FZT1047ATA part is unused and in its original packaging.

Return procedure for FZT1047ATA:

1.Submit a request within 90 days.

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

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