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Diodes Incorporated FZT717TC
- Part No.:
- FZT717TC
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
FZT717TC.pdf
- Description:
- TRANS PNP 12V 3A SOT-223-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,559
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Product details
Overview
FZT717TC from Diodes Incorporated is a 12V PNP medium-power bipolar junction transistor in SOT223 package, rated for -3A continuous collector current and -12V VCEO, with 3W power dissipation on 50mm × 50mm 2oz copper PCB; used in automotive load switching and industrial DC-DC converter bias circuits.
For engineers reviewing the FZT717TC datasheet, FZT717TC pinout, FZT717TC application, or FZT717TC equivalent, key selection criteria include verified VCE(sat) ≤ -320 mV at -3A/-50mA, hFE ≥ 160 at high current, thermal resistance RθJA = 41.7°C/W under standard mounting, and AEC-Q101 qualification readiness for automotive-grade deployment.
Technical Context
This PNP transistor operates in linear and saturated switching modes with guaranteed breakdown voltages of -12V (VCEO) and -7V (VEBO), supporting robust reverse-biased emitter-base control in high-side switch configurations. Its fT of 80–110 MHz enables stable operation in low-frequency power control and analog biasing applications up to several hundred kHz.
The device delivers VCE(sat) = -20 mV at light load (-100mA/-10mA) and -320 mV at full rated current (-3A/-50mA), with hFE maintaining ≥60 at -3A, ensuring predictable gain compression and minimal drive current overhead in high-current switching stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -12 V - Maximum allowable collector-emitter voltage before avalanche breakdown; defines safe operating range in high-side PNP switch topologies. |
| IC (cont.) | -3 A - Continuous collector current rating; supports sustained 3A load switching without derating on adequate copper area. |
| PD | 3 W - Power dissipation limit on 50mm × 50mm 2oz FR4; determines thermal pad sizing and heatsinking requirements. |
| VCE(sat) | -320 mV @ -3A/-50mA - Confirmed saturation voltage at full rated current; directly impacts conduction loss and junction temperature rise. |
| hFE | ≥60 @ -3A - Minimum DC current gain at full load; ensures sufficient base drive margin for reliable saturation under worst-case conditions. |
| fT | 80–110 MHz - Current gain-bandwidth product; validates suitability for fast turn-on/turn-off in PWM-controlled power stages. |
| RθJA | 41.7 °C/W - Junction-to-ambient thermal resistance on standard layout; enables accurate junction temperature prediction for reliability analysis. |
Pinout & Package
Package: SOT223 (Type DN), surface-mount, 4-terminal configuration with collector tab electrically connected to lead 1 (collector) and thermally enhanced for PCB heat spreading.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Collector Tab) | Main current path output / thermal interface | Electrically and thermally tied to collector; requires direct connection to large copper pour for thermal management and current handling. |
| 2 (Emitter) | Current source terminal | Connected to positive rail in high-side switch; carries full load current and sets reference for base drive polarity. |
| 3 (Base) | Control input | Receives negative-going drive signal to turn on PNP; requires current-limited sourcing (e.g., via resistor or driver) to avoid overdrive. |
| 4 (Collector Lead) | Secondary collector connection | Redundant collector path; must be tied to same net as Pin 1 to maintain rated current and thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Lead-free, halogen-free "Green" construction | Meets RoHS 3 (2015/863/EU) and IATF 16949 manufacturing standards; eliminates hazardous substances without compromising solderability or reliability. |
| High peak pulse current capability | ICM = -10A enables robust surge tolerance in motor start-up, solenoid actuation, and inrush-limited power sequencing. |
| ESD robustness | HBM rating of 4,000 V reduces risk of field failure during handling and assembly in automated SMT lines. |
| Low VCE(sat) at high current | -320 mV at -3A minimizes conduction loss and self-heating, extending operational lifetime in thermally constrained enclosures. |
Applications
| Automotive Door Lock Actuator | Industrial 24V DC-DC Bias Supply |
|---|---|
Use Scenario: Driving 12V solenoid loads in vehicle door modules with intermittent duty cycle and ambient temperatures up to +105°C. IC Role / Device Role / Timing Role: High-side PNP switch controlling solenoid ground return path; provides controlled turn-on/turn-off timing via base current slew rate. Use Value: VCE(sat) ≤ -320 mV ensures <1W conduction loss at 3A, reducing thermal stress on PCB and enabling compact module design. |
Use Scenario: Regulating auxiliary 5V/3.3V bias rails from 24V industrial bus using discrete linear regulator topology. IC Role / Device Role / Timing Role: Pass element in emitter-follower configuration; delivers stable output with low dropout and no external compensation required. Use Value: hFE ≥ 60 at full load guarantees predictable base drive current (<50mA), simplifying driver stage design and minimizing quiescent power. |
| LED Driver for Commercial Lighting | Power Sequencing Controller |
Use Scenario: Constant-current switching for high-brightness LED strings in outdoor signage with wide temperature variation (-40°C to +85°C). IC Role / Device Role / Timing Role: Switching transistor in PWM-modulated current sink; handles repetitive 100Hz–1kHz pulses with minimal switching loss. Use Value: fT ≥ 80 MHz ensures fast turn-on/turn-off transitions, preserving PWM fidelity and reducing EMI generation. |
Use Scenario: Enabling/disabling downstream power rails in multi-voltage FPGA or SoC systems with precise sequencing order and delay control. IC Role / Device Role / Timing Role: Discrete enable switch for 12V intermediate rail; driven by microcontroller GPIO with active-low logic compatibility. Use Value: VEBO = -7V allows direct interfacing with 5V/3.3V logic without level-shifting, reducing BOM count and board space. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP medium-power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXTN25050DFH | Higher VCEO (-50V), lower IC (-1.5A), SOT89 package, RθJA = 125°C/W | Better voltage headroom but reduced current capacity and higher thermal resistance limits use in high-current, low-voltage apps | Select when >12V system isolation is needed and thermal budget permits smaller copper area. |
| MJD2955T4G | TO-220 package, -10A IC, -60V VCEO, RθJA = 3°C/W (with heatsink) | Requires mechanical mounting and heatsink; unsuitable for space-constrained SMT-only designs | Choose for legacy through-hole systems or where >3A continuous current and superior thermal performance are mandatory. |
Compared with ZXTN25050DFH and MJD2955T4G, FZT717TC offers optimal balance of SMT compatibility, 3A current delivery, and 41.7°C/W thermal resistance on standard PCB layouts-making it preferred for compact, automotive-qualified, medium-power switching where board area and assembly cost are critical.
Availability
FZT717TC is available at Aetrix Electronics and suitable for automotive door lock modules, industrial DC-DC bias supplies, and commercial LED driver circuits requiring stable component supply and AEC-Q101-aligned manufacturing traceability.
Supply support for FZT717TC 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 ISO/TS 16949-certified facilities and broad distribution across automotive, industrial, and consumer markets.
FZT717TC belongs to Diodes' FZT series of medium-power transistors designed specifically for high-reliability, surface-mount switching and linear regulation in automotive and industrial environments where thermal efficiency and RoHS compliance are mandatory.
FAQ
Is FZT717TC qualified to AEC-Q101?
No, FZT717TC is not AEC-Q101 qualified per its official datasheet; however, Diodes states that automotive-grade versions (e.g., FZT717TA) are PPAP-capable and manufactured in IATF 16949-certified facilities. Customers requiring formal qualification must specify the TA suffix and engage Diodes' automotive team for change-controlled documentation.
What is the maximum safe operating temperature for FZT717TC?
The FZT717TC has an operating junction temperature range of -55°C to +150°C. At ambient temperatures above +70°C, power dissipation must be derated per the published curve: for example, at +100°C ambient on 50mm × 50mm 2oz copper, max PD drops to ~1.8W to maintain TJ ≤ 150°C.
Can FZT717TC replace FZT790A in existing designs?
No-FZT790A is an NPN transistor with +12V VCEO and +3A IC, making it electrically incompatible as a direct replacement. Swapping requires circuit reconfiguration (e.g., inverting drive logic, relocating load to emitter/collector side), and thermal validation due to differing RθJA values (FZT790A: 50°C/W vs. FZT717TC: 41.7°C/W).
Does FZT717TC require a heatsink in typical applications?
Not typically-when mounted on ≥50mm × 50mm 2oz copper, its RθJA of 41.7°C/W allows full 3A operation at +25°C ambient with TJ ≈ 130°C. Heatsinking is only necessary if ambient exceeds +70°C or copper area is reduced below 25mm × 25mm 2oz, where RθJA rises to 62.5°C/W or higher.
FZT717TC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 3 A
- Voltage - Collector Emitter Breakdown (Max):
- 12 V
- Vce Saturation (Max) @ Ib, Ic:
- 320mV @ 50mA, 3A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 300 @ 100mA, 2V
- Power - Max:
- 2 W
- Frequency - Transition:
- 110MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
FZT717TC FAQ
1.How can I place an order for FZT717TC through Aetrix?
Please submit a Request for Quotation (RFQ) for FZT717TC 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 FZT717TC reliable?
The price and inventory of FZT717TC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FZT717TC is usually 5 days.
3.What payment methods are accepted for FZT717TC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FZT717TC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FZT717TC?
FZT717TC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FZT717TC 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 FZT717TC?
For technical support, including FZT717TC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FZT717TC requirements.
6.How does Aetrix verify that FZT717TC is sourced from the original manufacturer or authorized distributors?
All FZT717TC 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 FZT717TC meets industry standards.
7.What is the process for return or replacement of FZT717TC?
All FZT717TC units undergo pre-shipment inspection (PSI). If there is an issue with FZT717TC, 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 FZT717TC part is unused and in its original packaging.
Return procedure for FZT717TC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FZT717TC Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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