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

Diodes Incorporated FMMT593TC

Name: FMMT593TC
Brand: Diodes Incorporated
SKU: FMMT593TC
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: FMMT593TC

Manufacturer:: Diodes Incorporated

Category:: Single Bipolar Transistors

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

Datasheet:: FMMT593TC.pdf

Description:: TRANS PNP 100V 1A SOT-23-3

Quantity:: RFQ Add To RFQ list

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Inventory:187,670

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Product details

Overview

FMMT593TC from Diodes Incorporated is a 100V PNP high-voltage transistor in SOT23 (Type DN) package, designed for high-side switching and load disconnect applications. It delivers -1A continuous collector current, -100V V_CEO, and low -200mV V_CE(sat) at I_C = -250mA/I_B = -25mA, with h_FE ≥ 100 up to -1A - enabling robust DC motor drive and industrial power control.

For engineers reviewing the FMMT593TC datasheet, FMMT593TC pinout, FMMT593TC application, or FMMT593TC equivalent, key selection criteria include verified high-voltage blocking (-100V V_CEO), thermal performance (R_θJA = 250°C/W on 15mm × 15mm FR4), saturation behavior under pulsed drive, and compatibility with standard SOT23 PCB layouts and reflow profiles.

Technical Context

This PNP bipolar junction transistor operates in linear or saturated switching mode with guaranteed breakdown ratings: -120V V_CBO, -100V V_CEO, and -7V V_EBO. Its h_FE remains stable across I_C = -1mA to -1A, supporting predictable base drive design in high-side configurations.

V_CE(sat) is characterized under pulsed conditions (≤300µs, ≤2% duty cycle) at -200mV (I_C = -250mA, I_B = -25mA) and -300mV (I_C = -500mA, I_B = -50mA), while f_T = 50MHz confirms usable gain-bandwidth for moderate-speed switching up to ~100kHz.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	-100V - supports high-side switching in 48V and 72V industrial bus systems without avalanche stress
I_C (cont.)	-1A - enables direct driving of solenoids, relays, or small DC motors without external amplification
V_CE(sat)	-200mV @ I_C=-250mA/I_B=-25mA - minimizes conduction loss and self-heating in thermally constrained SOT23 layouts
h_FE	100–300 @ I_C=-1mA to -1A - ensures reliable base current calculation across full operating range
R_θJA	250°C/W - defines maximum power dissipation (500mW) on standard 15mm×15mm FR4 with 1oz copper
f_T	50MHz - supports clean turn-off in PWM-controlled loads up to 100kHz with controlled rise/fall times

Pinout & Package

Package: SOT23 (Type DN), surface-mount plastic package with matte tin-plated leads, moisture sensitivity level 1 per J-STD-020, weight ≈ 0.008g.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current source terminal for PNP operation	Connected to positive rail in high-side switch; requires low-impedance return path for base drive
2 (Base)	Control input for minority-carrier injection	Driven negative relative to emitter; -25mA typical for full saturation at -250mA load
3 (Collector)	Current sink terminal	Connected to load; voltage swing limited to -100V max relative to emitter under blocking condition

Key Features

Feature	Design Value
High V_CEO rating	-100V enables use in 48V/72V automotive and industrial power domains without derating
Low V_CE(sat)	-200mV at moderate load reduces power loss and thermal stress in compact SOT23 footprint
Stable h_FE vs. I_C	h_FE ≥ 100 up to -1A simplifies base resistor selection and improves drive margin
Lead-free & Halogen-free	RoHS 3 compliant with <900ppm Br/Cl and <1000ppm Sb - meets automotive and green electronics mandates

Applications

High-Side Drivers

Load Disconnect Switches

Use Scenario: Controlling power delivery to sensors or actuators in PLC I/O modules where supply rail is referenced to system ground.

IC Role / Device Role / Timing Role: PNP high-side switch turning on/off 24–48V loads using microcontroller GPIO with level-shifting circuitry.

Use Value: -100V V_CEO prevents breakdown during load dump transients; -200mV V_CE(sat) limits resistive heating in confined board areas.

Use Scenario: Isolating backup battery or auxiliary power rail during fault conditions in telecom power supplies.

IC Role / Device Role / Timing Role: Fast-acting disconnect element activated by supervisor IC or MCU during overvoltage or thermal shutdown.

Use Value: 50MHz f_T ensures sub-microsecond turn-off response; -2A I_CM handles surge currents during hot-swap events.

Motor Drives

Industrial Power Control

Use Scenario: Driving small brushed DC motors (e.g., fans, pumps) in HVAC controllers with bidirectional logic-level control.

IC Role / Device Role / Timing Role: High-side current source in half-H-bridge configuration, paired with N-channel low-side switch.

Use Value: h_FE stability up to -1A allows consistent torque control across speed range; SOT23 footprint enables dense multi-channel designs.

Use Scenario: Enabling/disabling 24V solenoid valves or indicator LEDs in factory automation panels.

IC Role / Device Role / Timing Role: General-purpose high-voltage switch interfacing between isolated logic and field-side loads.

Use Value: -7V V_EBO tolerance accommodates common-base biasing schemes; UL 94V-0 molding compound enhances fire safety compliance.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ZXTN25050DFH	Higher V_CEO (-120V), lower V_CE(sat) (-150mV), but SOT89 package - larger footprint and higher thermal mass	Preferred where higher voltage margin and lower conduction loss justify larger board area and different thermal layout	Select when >100V blocking or <200mW conduction loss is critical; verify SOT89 pad compatibility and reflow profile
FMMT591TC	Same SOT23 package, but lower V_CEO (-80V) and reduced I_C (-600mA); complementary to FMMT491	Suitable only for ≤40V systems; not drop-in for -100V requirements	Use only if voltage and current demands are relaxed; avoid in 48V+ applications due to insufficient V_CEO margin

Compared with ZXTN25050DFH and FMMT591TC, FMMT593TC uniquely balances -100V blocking, -1A current, SOT23 compactness, and RoHS 3 compliance - making it optimal for space-constrained 48V industrial controls requiring proven manufacturability and AEC-Q200-ready qualification path.

Availability

FMMT593TC is available at Aetrix Electronics and suitable for high-side drivers, load disconnect switches, motor drives, and industrial power control requiring stable component supply and long-term production continuity.

Supply support for FMMT593TC 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 the Americas.

The FMMT series targets high-reliability general-purpose switching applications, emphasizing voltage robustness, thermal efficiency in small packages, and compliance with automotive and industrial environmental standards.

FAQ

What is the maximum safe operating voltage for FMMT593TC in continuous DC blocking?

The absolute maximum collector-emitter voltage (V_CEO) is -100V at T_A = +25°C. Operation above this value risks avalanche breakdown and permanent damage. Derating is required above +25°C per the datasheet's thermal curve - e.g., V_CEO drops to ~−85V at +100°C ambient. Always maintain ≥20% margin in production designs.

Can FMMT593TC be used in PWM motor control at 20kHz?

Yes - its 50MHz transition frequency (f_T) and characterized V_CE(sat) under pulsed conditions support clean switching at 20kHz. However, ensure base drive provides sufficient peak current (≥−50mA) and fast edge rates to minimize switching losses, and verify thermal performance with actual PCB copper area and airflow.

Is FMMT593TC qualified to AEC-Q101 for automotive use?

No - the datasheet states that AEC-Q101 qualification requires specific change control and PPAP capability, which must be requested separately from Diodes. Standard FMMT593TC is not automotive-qualified out-of-box, though its construction (lead-free, halogen-free, IATF 16949-manufactured) supports qualification pathways upon customer request.

How does the SOT23 (Type DN) package affect thermal performance in real-world layouts?

R_θJA = 250°C/W is measured on a 15mm × 15mm FR4 board with 1oz copper. In smaller layouts (<10mm² copper), R_θJA may exceed 350°C/W, limiting safe continuous power to <300mW. Use thermal vias under the collector pad and adjacent copper pours to improve heat spreading and sustain 500mW dissipation reliably.

FMMT593TC 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):: 1 A

Voltage - Collector Emitter Breakdown (Max):: 100 V

Vce Saturation (Max) @ Ib, Ic:: 300mV @ 50mA, 500mA

Current - Collector Cutoff (Max):: 100nA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 500mA, 5V

Power - Max:: 500 mW

Frequency - Transition:: 50MHz

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

FMMT593TC FAQ

1.How can I place an order for FMMT593TC through Aetrix?

Please submit a Request for Quotation (RFQ) for FMMT593TC 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 FMMT593TC reliable?

The price and inventory of FMMT593TC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FMMT593TC is usually 5 days.

3.What payment methods are accepted for FMMT593TC?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FMMT593TC transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for FMMT593TC?

FMMT593TC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your FMMT593TC 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 FMMT593TC?

For technical support, including FMMT593TC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FMMT593TC requirements.

6.How does Aetrix verify that FMMT593TC is sourced from the original manufacturer or authorized distributors?

All FMMT593TC 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 FMMT593TC meets industry standards.

7.What is the process for return or replacement of FMMT593TC?

All FMMT593TC units undergo pre-shipment inspection (PSI). If there is an issue with FMMT593TC, 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 FMMT593TC part is unused and in its original packaging.

Return procedure for FMMT593TC:

1.Submit a request within 90 days.

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

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