My Inquiry
My Account
Diodes Incorporated FMMTL717QTA
- Part No.:
- FMMTL717QTA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
FMMTL717QTA.pdf
- Description:
- TRANS PNP 12V 1.25A SOT-23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,982
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
FMMTL717QTA from Diodes Incorporated is a 12V PNP high-gain medium-power transistor in SOT23 package, rated for -1.25A continuous collector current, -240mV VCE(sat) at -1A, and 500mW power dissipation. It serves as a robust switching or linear amplification device in automotive load control, LED driver stages, and power management circuits requiring AEC-Q101 qualification.
For engineers reviewing the FMMTL717QTA datasheet, FMMTL717QTA pinout, FMMTL717QTA application, or FMMTL717QTA equivalent, key selection criteria include its -12V VCEO, hFE ≥ 180 at -1A, RCE(SAT) = 160mΩ, AEC-Q101 qualification, and SOT23 thermal performance under pulsed and DC conditions.
Technical Context
This PNP bipolar junction transistor operates with emitter-grounded configuration and supports high-current switching up to -4A peak pulse. Its low saturation voltage and stable hFE down to -3A enable reliable operation in automotive-grade constant-current sinks and relay drivers.
The device features fully characterized gain across -10mA to -3A, JEDEC Class 3A HBM ESD rating (4kV), and thermal resistance of 250°C/W (junction-to-ambient) on 15mm × 15mm 1oz FR4 PCB - enabling predictable derating in compact industrial and automotive PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -12V - Maximum safe collector-emitter voltage before breakdown in common-emitter configuration |
| IC (continuous) | -1.25A - Continuous DC current handling capacity without thermal runaway on standard PCB |
| VCE(sat) | < -240mV @ -1A - Ensures minimal conduction loss and heat generation in saturated switch mode |
| hFE | 180 min @ -1A - Guarantees sufficient current gain for base drive efficiency in high-side switch applications |
| PD | 500mW - Power dissipation limit under still-air conditions with specified PCB copper area |
| RθJA | 250°C/W - Enables thermal modeling for ambient temperature rise in enclosed enclosures |
| fT | 205MHz - Supports fast switching in PWM-based control loops up to ~20MHz practical bandwidth |
Pinout & Package
Package: SOT23 - Surface-mount plastic package with matte tin-plated leads, UL 94V-0 rated, moisture sensitivity level 1, weight ≈ 0.008g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | E | Current sink node; connected to ground or low-side return path in PNP switch configuration |
| 2 (Base) | B | Control input; requires negative bias relative to emitter to turn on; drives with -50mA for full saturation at -1.25A |
| 3 (Collector) | C | High-side output node; connects to load supply rail; carries full switched current to load |
Key Features
| Feature | Design Value |
|---|---|
| High current gain hold-up | hFE ≥ 100 at -3A ensures stable base drive design across full operating range |
| Low equivalent on-resistance | RCE(SAT) = 160mΩ enables <125mW conduction loss at -1A, reducing heatsink need |
| AEC-Q101 qualification | Validated for automotive temperature (-55°C to +150°C) and reliability stress testing per JESD47 |
| Green compound & RoHS compliance | Halogen/antimony-free molding compound (<900ppm Br/Cl, <1000ppm Sb) meets automotive environmental requirements |
Applications
| Automotive Door Module Switching | Industrial LED Constant-Current Sink |
|---|---|
Use Scenario: Controlling window lift motors and mirror actuators in door modules under battery-voltage transients. IC Role / Device Role / Timing Role: PNP high-side switch providing load isolation and reverse-polarity protection. Use Value: -12V VCEO withstands load-dump spikes; -240mV VCE(sat) limits self-heating during extended actuation cycles. | Use Scenario: Sinking current from multi-segment automotive LED clusters with precise brightness control. IC Role / Device Role / Timing Role: Linear current-regulating transistor in analog dimming path. Use Value: Stable hFE ≥ 180 at -1A enables accurate current mirroring with minimal base current variation. |
| DC-DC Converter Bias Supply | Smart Fuse Load Switch |
Use Scenario: Providing isolated bias voltage for gate drivers in 12V buck converters. IC Role / Device Role / Timing Role: Low-power PNP pass element regulating auxiliary VCC. Use Value: 500mW rating and 250°C/W RθJA allow operation without heatsink in space-constrained converter footprints. | Use Scenario: Replacing mechanical fuses in battery management systems with electronic overcurrent protection. IC Role / Device Role / Timing Role: Fast-turn-off current limiter responding to fault within 225ns (ton + toff). Use Value: 76ns ton/149ns toff enables sub-microsecond fault response, meeting ASIL-B timing constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP medium-power switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMT3005LKQ-7 | Higher VCEO (-30V), lower hFE (100 min @ -1A), same SOT23-3 package | Better suited for 24V systems; reduced gain requires higher base drive current | Select when wider voltage margin is needed and base drive capability allows |
| BC807-40Q-7-F | Lower IC (-500mA), higher hFE (250–630), same AEC-Q101 grade | Limited to low-power loads; superior gain improves efficiency in low-current bias networks | Choose for signal-level switching where <500mA load current suffices |
Compared with DMT3005LKQ-7 and BC807-40Q-7-F, FMMTL717QTA uniquely balances -1.25A current capability, -240mV saturation voltage, and AEC-Q101 qualification in SOT23 - making it optimal for 12V automotive power switches where both current and thermal efficiency are critical.
Availability
FMMTL717QTA is available at Aetrix Electronics and suitable for automotive body electronics, industrial LED drivers, and DC-DC bias supplies requiring stable component supply, AEC-Q101 traceability, and SOT23 thermal performance.
Supply support for FMMTL717QTA 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 components for automotive, industrial, and consumer markets.
FMMTL717QTA belongs to Diodes' AEC-Q101-qualified PNP transistor product line, engineered for robust switching in 12V automotive power distribution and load control applications.
FAQ
What is the maximum allowable base current for FMMTL717QTA?
The absolute maximum base current is -200mA per Absolute Maximum Ratings table. For reliable operation at -1.25A collector current, the recommended base drive is -50mA - ensuring full saturation while maintaining safe SOA margins and avoiding secondary breakdown.
Does FMMTL717QTA support pulsed operation beyond its DC ratings?
Yes - it supports -4A peak pulse current (ICM) with pulse width ≤ 100ms and duty cycle ≤ 2%, validated by the Safe Operating Area curve. This enables use in intermittent high-load scenarios like solenoid actuation or motor stall protection.
How does the thermal resistance change with PCB copper area?
RθJA = 250°C/W is specified for 15mm × 15mm 1oz copper. Reducing copper area increases thermal resistance significantly - e.g., 5mm × 5mm reduces heat spreading, raising RθJA to ~420°C/W - requiring derating to ~300mW at +85°C ambient.
Is FMMTL717QTA pin-compatible with standard SOT23 PNP transistors?
Yes - it uses standard SOT23-3 pinout (Emitter-Base-Collector, left-to-right top view), matching industry-standard footprint AP02001. No layout redesign is needed when substituting qualified AEC-Q101 PNP devices with identical marking orientation and lead finish.
FMMTL717QTA 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):
- 1.25 A
- Voltage - Collector Emitter Breakdown (Max):
- 12 V
- Vce Saturation (Max) @ Ib, Ic:
- 290mV @ 50mA, 1.25A
- Current - Collector Cutoff (Max):
- 10nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 300 @ 100mA, 2V
- Power - Max:
- 500 mW
- Frequency - Transition:
- 205MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
FMMTL717QTA FAQ
1.How can I place an order for FMMTL717QTA through Aetrix?
Please submit a Request for Quotation (RFQ) for FMMTL717QTA 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 FMMTL717QTA reliable?
The price and inventory of FMMTL717QTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FMMTL717QTA is usually 5 days.
3.What payment methods are accepted for FMMTL717QTA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FMMTL717QTA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FMMTL717QTA?
FMMTL717QTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FMMTL717QTA 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 FMMTL717QTA?
For technical support, including FMMTL717QTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FMMTL717QTA requirements.
6.How does Aetrix verify that FMMTL717QTA is sourced from the original manufacturer or authorized distributors?
All FMMTL717QTA 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 FMMTL717QTA meets industry standards.
7.What is the process for return or replacement of FMMTL717QTA?
All FMMTL717QTA units undergo pre-shipment inspection (PSI). If there is an issue with FMMTL717QTA, 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 FMMTL717QTA part is unused and in its original packaging.
Return procedure for FMMTL717QTA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FMMTL717QTA Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
-
MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
