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

Diodes Incorporated FMMT717QTA

Name: FMMT717QTA
Brand: Diodes Incorporated
SKU: FMMT717QTA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: FMMT717QTA

Manufacturer:: Diodes Incorporated

Category:: Single Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: FMMT717QTA.pdf

Description:: TRANS PNP 12V 2.5A SOT-23-3

Quantity:: RFQ Add To RFQ list

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Inventory:5,195

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Product details

Overview

FMMT717QTA from Diodes Incorporated is a 12V PNP silicon low-saturation transistor in SOT23 package, rated for -2.5A continuous collector current, -10A peak pulse current, and 625mW power dissipation. It delivers -17mV max V_CE(sat) at -100mA and achieves R_CE(sat) = 72mΩ at -2.5A, enabling efficient gate-driving of MOSFETs and IGBTs in compact DC-DC converters.

For engineers reviewing the FMMT717QTA datasheet, FMMT717QTA pinout, FMMT717QTA application, or FMMT717QTA equivalent, key selection criteria include verified low saturation voltage under high-current switching, h_FE characterization up to -10A, thermal resistance (R_θJA = 200°C/W), complementary NPN pairing with FMMT617, and automotive-grade variant availability (FMMT717Q).

Technical Context

This PNP bipolar junction transistor operates with V_CEO = -12V and V_EBO = -7V, supporting robust blocking in low-voltage load-switching topologies. Its h_FE remains stable across wide current range (-10mA to -10A), ensuring predictable base drive requirements during transient load conditions.

V_CE(sat) is specified down to -10mV at -100mA and -170mV at -2.5A with corresponding base currents, confirming low conduction loss in high-efficiency switching applications. The device's f_T = 80–110MHz and C_obo = 40–50pF support fast turn-on (t_on = 70ns) and turn-off (t_off = 130ns) performance in gate-drive circuits.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	-12V - Maximum safe collector-emitter reverse bias before breakdown in common-emitter configuration.
I_C (cont.)	-2.5A - Continuous current handling capacity without thermal runaway on standard FR4 PCB.
V_CE(sat)	-17mV max @ I_C = -100mA - Enables ultra-low conduction loss in battery charging and load switch control paths.
R_CE(sat)	72mΩ @ I_C = -2.5A - Equivalent on-resistance supports high-current switching with minimal IR drop.
h_FE	475 min @ I_C = -10mA, 70 min @ I_C = -10A - Maintains usable current gain even at extreme pulsed loads.
P_D	625mW - Power dissipation limit under steady-state mounting on 25mm × 25mm single-sided copper PCB.
f_T	80–110MHz - Sufficient gain-bandwidth for high-speed gate driving of power semiconductors.

Pinout & Package

Package: SOT23 - Surface-mount plastic package with matte tin-plated leads, moisture sensitivity level 1, UL 94V-0 rating, and approximate weight of 0.008g.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current source terminal in PNP configuration	Connected to higher potential rail; carries full load current in high-side switch topology.
2 (Base)	Control input for transistor conduction	Requires negative current injection relative to emitter to saturate; compatible with standard logic-level drivers.
3 (Collector)	Current sink terminal	Connected to load or switched node; low R_CE(sat) minimizes voltage drop during ON state.

Key Features

Feature	Design Value
Low V_CE(sat)	-17mV max at -100mA enables <10mW conduction loss in precision current-sensing switches.
High pulsed current capability	-10A I_CM supports short-duration surge handling in motor gate-drive and battery protection circuits.
Stable h_FE at high current	70 min h_FE at -10A ensures reliable base drive sizing without overdesign in high-power stages.
Thermal robustness	R_θJA = 200°C/W (steady-state) allows operation up to +125°C ambient in space-constrained layouts.
RoHS & Green compliance	Lead-free, halogen-free, and antimony-free construction meets automotive and industrial environmental mandates.

Applications

Gate-Drive Switching

Battery Charging Control

Use Scenario: Driving gates of N-channel MOSFETs in synchronous buck converters.

IC Role / Device Role / Timing Role: High-current PNP switch providing fast, low-loss pull-up path for gate voltage.

Use Value: -170mV V_CE(sat) at -2.5A reduces gate charge time and improves converter efficiency by minimizing driver-stage losses.

Use Scenario: Enabling/disabling charging current path in portable Li-ion battery management systems.

IC Role / Device Role / Timing Role: Low-saturation series pass switch controlling charge current flow between charger IC and battery cell.

Use Value: 72mΩ R_CE(sat) limits voltage drop to <180mV at 2.5A, preserving battery voltage accuracy and thermal margin.

DC-DC Load Switch

IGBT Base Drive

Use Scenario: Hot-swap and inrush current limiting in 12V distributed power rails.

IC Role / Device Role / Timing Role: High-side PNP load switch activated via microcontroller GPIO with current-limited base drive.

Use Value: -12V V_CEO and -10A I_CM support safe interruption of 12V/2A loads with controlled turn-off transients.

Use Scenario: Providing negative turn-off bias to IGBT gates in motor inverter half-bridges.

IC Role / Device Role / Timing Role: Fast-turn-off PNP stage delivering -500mA peak base current to ensure clean IGBT commutation.

Use Value: 130ns t_off and -1.0V V_BE(sat) enable sub-200ns total gate discharge, reducing cross-conduction risk.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP low-saturation transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ZXTN25050DFH	V_CEO = -50V, I_C = -5A, V_CE(sat) = -120mV @ -2.5A - higher voltage rating but higher saturation voltage.	Preferred where >12V system isolation or higher fault tolerance is required; less optimal for ultra-low-loss 12V gate drive.	Select when extended breakdown margin outweighs conduction loss sensitivity.
DMT3005LPSQ	V_CEO = -30V, I_C = -3.5A, V_CE(sat) = -105mV @ -2.5A - MOSFET-based load switch with integrated gate driver, zero gate charge.	Replaces BJT with MOSFET solution; eliminates base current requirement but adds gate drive complexity.	Choose for simplified drive architecture and lower static power, accepting larger footprint and higher cost.

Compared with ZXTN25050DFH and DMT3005LPSQ, FMMT717QTA offers the lowest V_CE(sat) in its class at 12V rating, optimized for minimal conduction loss in compact gate-drive and battery-switching roles where voltage headroom is constrained.

Availability

FMMT717QTA is available at Aetrix Electronics and suitable for gate-driving MOSFETs and IGBTs, battery charging control, and DC-DC load switching requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing.

Supply support for FMMT717QTA 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, specializing in high-performance, energy-efficient components for power management, signal integrity, and protection.

FMMT717QTA belongs to Diodes' FMMT series of low-saturation bipolar transistors, engineered specifically for high-current, high-speed switching in space-constrained power conversion and load-control applications.

FAQ

What is the maximum safe operating temperature for FMMT717QTA?

The FMMT717QTA has an operating junction temperature range of -55°C to +150°C. Its thermal resistance R_θJA is 200°C/W under standard mounting conditions, meaning it can sustain +125°C ambient temperature with ≤625mW dissipation before reaching 150°C junction limit. Derating curves in the datasheet confirm linear power reduction above 25°C ambient.

Is FMMT717QTA pin-compatible with its NPN counterpart FMMT617?

No - FMMT717QTA (PNP) and FMMT617 (NPN) share the same SOT23 package and pinout order (Emitter-Base-Collector), but their polarity and biasing requirements differ fundamentally. While physically interchangeable, direct substitution requires circuit-level redesign to accommodate reversed current flow and voltage polarity.

Does FMMT717QTA support automotive applications?

Yes - an automotive-qualified version, FMMT717Q, is available under a separate datasheet and meets AEC-Q101 stress test requirements. FMMT717QTA itself is industrial-grade but shares identical electrical and thermal specifications; design-in for automotive use requires validation per AEC-Q101 and selection of the Q-suffixed part number.

How does the h_FE behavior change at high collector currents?

h_FE decreases predictably with increasing I_C: 475 min at -10mA, 275 min at -2.5A, and 70 min at -10A. This progressive roll-off is characterized and guaranteed in the datasheet, allowing accurate base current calculation across the full operating range without extrapolation or safety margin inflation.

FMMT717QTA Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 2.5 A

Voltage - Collector Emitter Breakdown (Max):: 12 V

Vce Saturation (Max) @ Ib, Ic:: 220mV @ 50mA, 2.5A

Current - Collector Cutoff (Max):: 100nA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 300 @ 100mA, 2V

Power - Max:: 625 mW

Frequency - Transition:: 110MHz

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

FMMT717QTA FAQ

1.How can I place an order for FMMT717QTA through Aetrix?

Please submit a Request for Quotation (RFQ) for FMMT717QTA 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 FMMT717QTA reliable?

The price and inventory of FMMT717QTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FMMT717QTA is usually 5 days.

3.What payment methods are accepted for FMMT717QTA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FMMT717QTA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for FMMT717QTA?

FMMT717QTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your FMMT717QTA 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 FMMT717QTA?

For technical support, including FMMT717QTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FMMT717QTA requirements.

6.How does Aetrix verify that FMMT717QTA is sourced from the original manufacturer or authorized distributors?

All FMMT717QTA 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 FMMT717QTA meets industry standards.

7.What is the process for return or replacement of FMMT717QTA?

All FMMT717QTA units undergo pre-shipment inspection (PSI). If there is an issue with FMMT717QTA, 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 FMMT717QTA part is unused and in its original packaging.

Return procedure for FMMT717QTA:

1.Submit a request within 90 days.

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

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