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Diodes Incorporated FMMT722QTA
- Part No.:
- FMMT722QTA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
FMMT722QTA.pdf
- Description:
- TRANS PNP 70V 1.5A SOT-23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,720
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Product details
Overview
FMMT722QTA from Diodes Incorporated is a 70V PNP silicon low-saturation transistor in SOT23 package, rated for -1.5A continuous collector current, -70V VCEO, and VCE(sat) < -220mV at -1A. It serves as a high-side driver or load disconnect switch in automotive power management circuits requiring AEC-Q101 reliability and low on-resistance (RCE(SAT) = 140 mΩ).
For engineers reviewing the FMMT722QTA datasheet, FMMT722QTA pinout, FMMT722QTA application, or FMMT722QTA equivalent, key selection criteria include verified -70V breakdown voltage, pulsed -3A peak current capability, hFE ≥ 40 at -1.5A, thermal resistance of 155°C/W (short pulse), and AEC-Q101 qualification for automotive use.
Technical Context
This PNP bipolar junction transistor operates with emitter-grounded configuration and supports high-side switching by sinking current from load to ground via collector-emitter path. Its low VCE(sat) and stable hFE up to -3A enable efficient DC load control without external biasing complexity.
Designed for automotive-grade reliability, it features fully lead-free, halogen- and antimony-free "Green" construction, JEDEC Class 3A HBM ESD rating (4,000 V), and moisture sensitivity level 1 - suitable for reflow assembly without baking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -70 V - Withstands 70V reverse bias between collector and emitter under continuous operation |
| IC (continuous) | -1.5 A - Supports steady-state load currents up to 1.5A in high-side switch topology |
| VCE(sat) | < -220 mV @ -1A - Minimizes conduction loss and self-heating during active switching |
| RCE(SAT) | 140 mΩ - Equivalent on-resistance enables precise power loss calculation in thermal design |
| hFE | 40 min @ -1.5A - Ensures sufficient current gain for reliable base drive sizing at full load |
| fT | 150 MHz typ - Supports fast switching in PWM-driven motor or LED applications |
| PD (pulsed) | 806 mW - Enables short-duration surge handling beyond steady-state 625 mW limit |
Pinout & Package
SOT23 plastic surface-mount package with matte tin-plated leads; 0.008 g mass; UL 94V-0 flammability rating; dimensions per AP02002 (C = 2.40 mm, H = 2.90 mm, L = 0.55 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Current source terminal | Connected to system ground or common rail; carries full load current in high-side configuration |
| 2 (Base) | Control input | Receives negative-turn-on current; requires ~200 mA drive for full saturation at -1.5A IC |
| 3 (Collector) | Load connection node | Connected to positive supply rail; switches load current to emitter/ground when biased |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power systems including engine control, body electronics, and lighting modules |
| Low VCE(sat) at high current | Enables <0.22 W conduction loss at -1A, reducing heatsink requirements in space-constrained PCBs |
| hFE characterized to -3A | Supports robust overcurrent margin analysis and base resistor tolerance validation across production lot |
| Halogen & antimony free | Meets EU Directive 2011/65/EU and automotive OEM environmental compliance mandates |
Applications
| Automotive Body Control Module | Industrial Motor Driver Stage |
|---|---|
Use Scenario: Controlling 12V solenoid valves and relays in door lock, window lift, and mirror adjustment circuits. IC Role / Device Role / Timing Role: High-side PNP switch providing controlled current sink to ground for load activation. Use Value: -70V VCEO withstands load-dump transients; RCE(SAT) = 140 mΩ limits power dissipation to <0.22 W at 1A. | Use Scenario: Driving small DC motors in factory automation actuators where compact size and thermal efficiency are critical. IC Role / Device Role / Timing Role: Discrete power stage enabling PWM-controlled bidirectional current flow via H-bridge complement. Use Value: fT = 150 MHz allows clean switching at >20 kHz PWM frequencies; hFE ≥ 40 ensures stable gate/base drive under temperature variation. |
| LED Lighting Power Switch | Power Supply Load Disconnect |
Use Scenario: On/off control of high-brightness LED strings in automotive exterior lighting (tail lamps, DRLs). IC Role / Device Role / Timing Role: Constant-current sink switch operating in linear or saturated mode depending on dimming strategy. Use Value: VBE(sat) = -0.94 V at -1.5A simplifies base drive design; -55°C to +150°C operating range covers under-hood thermal extremes. | Use Scenario: Isolating downstream circuitry during fault conditions or standby mode in industrial SMPS designs. IC Role / Device Role / Timing Role: Fast-acting load disconnect device activated by microcontroller GPIO with minimal external components. Use Value: toff = 700 ns enables rapid shutdown response; ESD HBM = 4,000 V protects against board-level handling damage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP high-side switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXTN25050DFH | Higher VCEO (-100 V), lower RCE(SAT) (100 mΩ), but only standard qualification (not AEC-Q101) | Preferred for industrial non-automotive systems needing higher voltage margin and lower loss | Select if AEC-Q101 is not required and -100V rating adds safety margin |
| DMT3005LPSQ | PNP MOSFET alternative with VGS(th) = -1.5 V, RDS(on) = 120 mΩ, no base current requirement | Better suited for low-power MCU-driven loads where gate drive simplicity outweighs bipolar speed advantage | Choose when minimizing base drive complexity is prioritized over switching speed |
Compared with ZXTN25050DFH and DMT3005LPSQ, FMMT722QTA uniquely combines AEC-Q101 qualification, proven bipolar switching speed (ton/toff), and tight VCE(sat) spec - making it optimal for cost-sensitive, thermally constrained automotive high-side switches where qualification and consistency are mandatory.
Availability
FMMT722QTA is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drivers, LED lighting control, and power supply load disconnect applications requiring stable component supply and long-term lifecycle support.
Supply support for FMMT722QTA 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-reliability power management, signal integrity, and protection solutions for automotive, industrial, and consumer markets.
FMMT722QTA belongs to Diodes' AEC-Q101-qualified discrete transistor product line, engineered specifically for robust high-side switching in harsh automotive environments with emphasis on thermal stability, ESD resilience, and manufacturing consistency.
FAQ
Is FMMT722QTA pin-compatible with FMMT718QTA?
No. FMMT722QTA is a PNP transistor with emitter-base-collector pinout (1-E, 2-B, 3-C) in SOT23, while FMMT718QTA is an NPN device with collector-base-emitter arrangement. Swapping them without circuit redesign causes functional failure due to reversed polarity and incompatible biasing requirements.
What is the maximum allowable base current for continuous operation?
The absolute maximum base current is -500 mA per datasheet ratings. However, for reliable continuous operation at IC = -1.5A, the recommended base drive is -200 mA (hFE ≥ 40 minimum), ensuring saturation without excessive base power dissipation or thermal stress on the bond wires.
Can FMMT722QTA be used in linear amplification mode?
It is not optimized for linear amplification. The datasheet specifies hFE and VCE(sat) under switching conditions, and its fT characterization assumes RF test conditions. For analog gain stages, Diodes' ZTX series or dedicated RF transistors offer better linearity, noise performance, and bias stability.
Does the "Q" in FMMT722QTA indicate AEC-Q101 qualification?
Yes. Per Diodes Incorporated's ordering information, the "Q" suffix denotes AEC-Q101 qualification and PPAP capability. The "TA" suffix indicates tape-and-reel packaging (3,000 units per reel, 8 mm tape width, 7-inch reel). This distinguishes it from the standard FMMT722TA, which lacks automotive qualification.
FMMT722QTA 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):
- 1.5 A
- Voltage - Collector Emitter Breakdown (Max):
- 70 V
- Vce Saturation (Max) @ Ib, Ic:
- 260mV @ 200mA, 1.5A
- Current - Collector Cutoff (Max):
- 100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 300 @ 100mA, 5V
- Power - Max:
- 625 mW
- Frequency - Transition:
- 200MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
FMMT722QTA FAQ
1.How can I place an order for FMMT722QTA through Aetrix?
Please submit a Request for Quotation (RFQ) for FMMT722QTA 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 FMMT722QTA reliable?
The price and inventory of FMMT722QTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FMMT722QTA is usually 5 days.
3.What payment methods are accepted for FMMT722QTA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FMMT722QTA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FMMT722QTA?
FMMT722QTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FMMT722QTA 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 FMMT722QTA?
For technical support, including FMMT722QTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FMMT722QTA requirements.
6.How does Aetrix verify that FMMT722QTA is sourced from the original manufacturer or authorized distributors?
All FMMT722QTA 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 FMMT722QTA meets industry standards.
7.What is the process for return or replacement of FMMT722QTA?
All FMMT722QTA units undergo pre-shipment inspection (PSI). If there is an issue with FMMT722QTA, 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 FMMT722QTA part is unused and in its original packaging.
Return procedure for FMMT722QTA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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