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

Diodes Incorporated FZT560QTA

Name: FZT560QTA
Brand: Diodes Incorporated
SKU: FZT560QTA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: FZT560QTA

Manufacturer:: Diodes Incorporated

Category:: Single Bipolar Transistors

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

Datasheet:: FZT560QTA.pdf

Description:: TRANS PNP 500V 0.15A SOT-223

Quantity:: RFQ Add To RFQ list

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Inventory:990

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Product details

Overview

FZT560QTA from Diodes Incorporated is a 500V PNP high-voltage transistor in SOT223 package, rated for -500V V_CEO, -150mA continuous collector current, and -500mA peak pulse current. It serves as a high-reliability switching element in automotive power supplies, industrial HV DC-DC converters, and offline AC-DC auxiliary rails where robust voltage blocking and AEC-Q101 compliance are required.

For engineers reviewing the FZT560QTA datasheet, FZT560QTA pinout, FZT560QTA application, or FZT560QTA equivalent, key selection criteria include verified -500V breakdown rating, thermal resistance of 41.7°C/W on 50mm×50mm copper, AEC-Q101 qualification, and SOT223 lead-frame thermal performance under pulsed switching conditions.

Technical Context

This PNP bipolar junction transistor operates with emitter-grounded configuration in high-side switch or linear regulator topologies. Its -500V V_CEO and -500V V_CBO enable direct use in 400V DC bus interfaces without cascading, while its 60MHz f_T supports fast turn-off (1.5µs) in flyback snubber or gate-driving applications.

The device delivers -200mV V_CE(sat) at -20mA/-2mA drive and -500mV at -50mA/-10mA, with h_FE ranging 15–300 across -1mA to -100mA I_C. Its J-STD-020 Level 1 moisture sensitivity and matte tin-plated leads ensure compatibility with standard reflow profiles and long-term solder joint integrity.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	-500 V - Blocks full 400V DC bus with 25% margin; eliminates need for series stacking in auxiliary supply designs.
I_C (cont.)	-150 mA - Supports sustained load currents up to 150mA in low-power HV bias rails or sensor excitation circuits.
f_T	60 MHz - Enables stable operation in 1–5MHz snubber oscillator or fast-switching linear regulator feedback paths.
V_CE(sat)	-500 mV @ -50mA/-10mA - Limits conduction loss to ≤25mW at rated current, critical for thermally constrained SOT223 layouts.
R_θJA	41.7 °C/W - Achievable only with 50mm×50mm 2oz copper; defines minimum PCB copper area for 3W steady-state dissipation.
ESD HBM	4,000 V - Meets IEC 61000-4-2 Level 3 for system-level ESD immunity in automotive cabin modules.

Pinout & Package

Package: SOT223 (Type ZN), molded green plastic, UL 94V-0 rated, 0.112g weight, matte tin-plated leads.

Pin/Terminal	Circuit Role	Design Meaning
Collector (C)	High-voltage output node	Connected to HV rail (e.g., 400V DC bus); carries full load current and withstands -500V reverse bias.
Emitter (E)	Reference/return path	Typically tied to ground or low-side return; must handle full I_C with minimal trace inductance.
Base (B)	Control input	Receives negative drive current (-2mA to -10mA); requires current-limiting resistor to prevent overdrive.
Collector Tab (exposed pad)	Thermal & electrical connection	Internally connected to collector; must be soldered to ≥25mm² copper for R_θJL = 14.8°C/W thermal path.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive powertrain and body electronics per stress test requirements including HTOL, TC, and UHAST.
-500V BV_CEO	Enables single-device isolation in 380–450V DC systems without external voltage dividers or cascode arrangements.
SOT223 thermal performance	3W power dissipation capability with 50mm×50mm copper enables compact HV bias supply designs without heatsinks.
Lead-free & halogen-free	Complies with RoHS 3 and JEDEC J-STD-020 Level 1; eliminates post-reflow cleaning and supports no-clean processes.

Applications

Automotive HVAC Blower Control

Industrial PLC Input Isolation

Use Scenario: Driving 24V/12V blower motor enable lines in climate control modules with 400V battery backup.

IC Role / Device Role / Timing Role: High-side PNP switch controlling gate of downstream N-channel MOSFET; operates in linear mode during soft-start ramp.

Use Value: -500V rating prevents breakdown during load dump transients; AEC-Q101 ensures 15-year field reliability in under-hood environments.

Use Scenario: Isolating 24V digital inputs from 400V DC-powered PLC backplane in factory automation cabinets.

IC Role / Device Role / Timing Role: Level-shifting interface between low-voltage logic and HV sensing circuitry; used in optocoupler driver stage.

Use Value: 60MHz f_T and 1.5µs t_off support 10kHz input sampling; SOT223 thermal mass handles intermittent surge currents.

AC-DC Auxiliary Power Supply

Medical Imaging HV Bias Rail

Use Scenario: Providing regulated 15V/100mA bias to PWM controllers and gate drivers in 1kW offline SMPS units.

IC Role / Device Role / Timing Role: Series pass transistor in discrete linear regulator feeding UC384x controller ICs.

Use Value: -200mV V_CE(sat) minimizes dropout voltage; R_θJA = 41.7°C/W allows operation without forced air cooling.

Use Scenario: Generating stable ±200V bias for photomultiplier tube (PMT) anode chains in portable X-ray detectors.

IC Role / Device Role / Timing Role: Precision current source in cascode-configured HV reference generator.

Use Value: <100nA I_CBO at -500V ensures leakage-induced drift <0.1% over 10-year service life.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage PNP transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ZTX653	V_CEO = -300V; h_FE min = 100 @ -10mA; SOT89 package	Limited to ≤300V systems; lower thermal mass reduces safe operating area at high pulse duty cycles	Select when board space is constrained and voltage stress remains below 250V.
MJD2955T4G	V_CEO = -60V; I_C = -10A; TO-220 package; no AEC-Q101	Not suitable for >100V applications; requires heatsink even at 1A; lacks automotive qualification	Use only in non-automotive, low-voltage, high-current linear regulators where thermal design permits TO-220 mounting.

Compared with ZTX653 and MJD2955T4G, FZT560QTA uniquely combines -500V rating, AEC-Q101 compliance, and SOT223 thermal scalability-making it the only option for space-constrained, high-reliability 400V auxiliary supplies in automotive and medical equipment.

Availability

FZT560QTA is available at Aetrix Electronics and suitable for automotive HVAC control, industrial PLC input isolation, and AC-DC auxiliary power supplies requiring stable component supply across multi-year production cycles.

Supply support for FZT560QTA 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 centers across Asia and manufacturing in IATF 16949-certified facilities.

The FZT560Q belongs to Diodes' high-voltage bipolar transistor product line, engineered specifically for automotive-grade auxiliary power conversion, industrial HV sensing, and safety-critical linear regulation where voltage margin and long-term parametric stability are mandatory.

FAQ

What is the maximum allowable PCB copper area needed to achieve the 3W power rating?

The 3W rating requires mounting on 50mm × 50mm of 2oz copper per the datasheet's Note 6. This area must be solid, unbroken, and directly connected to the exposed collector tab via multiple thermal vias. Smaller copper areas reduce derated power: 25mm × 25mm supports only 2W under still-air conditions.

Is FZT560QTA suitable for linear regulator applications with >100mA load current?

Yes, but only with strict thermal management. At -150mA I_C, V_CE(sat) reaches -500mV, generating 75mW conduction loss. Combined with switching losses in dynamic operation, total dissipation must stay within the 3W limit-requiring ≥50mm² copper and ambient temperature ≤70°C.

Does the AEC-Q101 qualification cover PPAP submission support?

Yes-the datasheet explicitly states the part is PPAP capable. Diodes provides full PPAP documentation packages including dimensional reports, material certifications, process flow diagrams, and control plans upon request through authorized distributors or direct sales channels.

Can FZT560QTA replace FZT560 in existing designs?

Yes, FZT560QTA is the automotive-qualified version of FZT560, sharing identical electrical specs and SOT223 mechanical form factor. The "Q" suffix denotes AEC-Q101 qualification, PPAP capability, and IATF 16949 manufacturing-no layout or schematic changes are needed for drop-in replacement in new automotive designs.

FZT560QTA 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:: PNP

Current - Collector (Ic) (Max):: 150 mA

Voltage - Collector Emitter Breakdown (Max):: 500 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 10mA, 50mA

Current - Collector Cutoff (Max):: 100nA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 1mA, 10V

Power - Max:: 2 W

Frequency - Transition:: 60MHz

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223

FZT560QTA FAQ

1.How can I place an order for FZT560QTA through Aetrix?

Please submit a Request for Quotation (RFQ) for FZT560QTA 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 FZT560QTA reliable?

The price and inventory of FZT560QTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FZT560QTA is usually 5 days.

3.What payment methods are accepted for FZT560QTA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FZT560QTA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for FZT560QTA?

FZT560QTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your FZT560QTA 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 FZT560QTA?

For technical support, including FZT560QTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FZT560QTA requirements.

6.How does Aetrix verify that FZT560QTA is sourced from the original manufacturer or authorized distributors?

All FZT560QTA 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 FZT560QTA meets industry standards.

7.What is the process for return or replacement of FZT560QTA?

All FZT560QTA units undergo pre-shipment inspection (PSI). If there is an issue with FZT560QTA, 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 FZT560QTA part is unused and in its original packaging.

Return procedure for FZT560QTA:

1.Submit a request within 90 days.

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

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