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Diodes Incorporated FZT1048ATC
- Part No.:
- FZT1048ATC
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
FZT1048ATC.pdf
- Description:
- TRANS NPN 17.5V 5A SOT-223-3
- Quantity:
- Payment:
- Shipping:
Inventory:9,191
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Product details
Overview
FZT1048ATC from Diodes Incorporated is a 17.5V NPN medium-power high-gain transistor in SOT223 package, rated for 5A continuous collector current, 20A peak pulse current, and VCE(sat) <45mV at 500mA. It delivers low on-resistance (RSAT = 50mΩ @ 5A) and high DC current gain (hFE = 50–440 across 10mA–20A), enabling efficient switching in solenoid and motor control circuits.
For engineers reviewing the FZT1048ATC datasheet, FZT1048ATC pinout, FZT1048ATC application, or FZT1048ATC equivalent, key selection criteria include its 17.5V VCEO, 50mΩ RSAT, AEC-Q101 readiness, thermal resistance (RθJA = 41.7°C/W on 52mm×52mm 2oz Cu), and verified performance up to 20A with hFE ≥50.
Technical Context
This NPN bipolar junction transistor operates as a high-current, low-saturation switch with BVCEO = 17.5V and BVCES = 50V, supporting robust blocking in 12V–24V industrial power stages. Its hFE is specified from 10mA to 20A - including 50 minimum at 20A - ensuring stable gain under heavy load conditions.
VCE(sat) remains ≤350mV at 5A/25mA drive, and fT = 150MHz enables fast switching with ton/toff of 120ns/310ns. The device features ESD ratings of 4kV HBM and 400V MM, and is qualified per J-STD-020 Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 17.5V - Maximum safe collector-emitter voltage in common-emitter configuration; defines upper rail limit for 12V/24V DC systems. |
| IC (continuous) | 5A - Sustained current-handling capability without thermal derating on standard 52mm×52mm 2oz Cu PCB. |
| VCE(sat) @ 5A | 250–350mV - Low conduction loss enabling <1.75W dissipation at full load; critical for thermally constrained motor drivers. |
| hFE @ 20A | 50–80 - Verified minimum DC gain at peak current ensures reliable base drive margin in high-power switching. |
| RθJA | 41.7°C/W - Junction-to-ambient thermal resistance on optimized layout; enables ~72°C rise at 3W dissipation. |
| fT | 150MHz - Current gain-bandwidth product supporting sub-microsecond switching transitions in PWM applications. |
| ESD HBM | 4,000V - Robust electrostatic immunity simplifies handling and board-level ESD protection design. |
Pinout & Package
Package: SOT223 (Type DN), surface-mount, 4-pin outline with emitter-collector-base-emitter configuration; molded green plastic, UL 94V-0 rated, 0.112g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Emitter) | Emitter terminal (dual-emitter configuration) | Primary current return path; internally connected to Pin 4 for enhanced thermal and current sharing. |
| Pin 2 (Base) | Control input | Low-impedance gate for driving; requires ~25mA for full 5A saturation, enabling direct MCU GPIO interface with series resistor. |
| Pin 3 (Collector) | Main power output | High-current output node; soldered to large copper area for thermal conduction; electrically and thermally coupled to tab. |
| Pin 4 (Emitter) | Secondary emitter terminal | Redundant emitter connection tied internally to Pin 1; improves current distribution and reduces bond-wire inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Low RSAT | 50mΩ @ 5A - Reduces conduction loss by >30% vs. standard medium-power transistors, lowering thermal stress in compact modules. |
| High-current hFE spec | hFE ≥50 @ 20A - Guarantees predictable base drive requirements even during surge events, simplifying driver stage design. |
| Thermal performance | RθJL = 10.9°C/W - Low junction-to-lead resistance enables effective heat transfer through collector tab to heatsink or PCB copper. |
| Automotive readiness | AEC-Q101 capable - Meets stress test requirements for automotive electronics; PPAP support available upon request. |
Applications
| Solenoid Driver | DC Motor Control |
|---|---|
Use Scenario: Driving 12V/24V automotive solenoids (e.g., fuel injectors, transmission shift actuators) requiring 3–5A pulsed current. IC Role / Device Role / Timing Role: High-current NPN switch replacing mechanical relays; handles repetitive 100ms ON pulses with minimal self-heating. Use Value: 45mV VCE(sat) at 500mA and 350mV at 5A minimizes coil voltage drop and improves actuation speed and repeatability. |
Use Scenario: Half-bridge high-side switch in brushed DC motor controllers for HVAC blowers or power seats. IC Role / Device Role / Timing Role: Medium-power switching element in discrete H-bridge; supports PWM frequencies up to 20kHz with <310ns turn-off. Use Value: 150MHz fT and 120ns ton ensure clean edge fidelity, reducing shoot-through risk and EMI generation. |
| Relay Replacement Module | Industrial DC Power Module |
Use Scenario: Solid-state replacement for electromechanical relays in PLC I/O modules handling 5A resistive loads. IC Role / Device Role / Timing Role: Load-switching transistor with integrated ESD protection; operated in saturation with fixed base bias. Use Value: 4kV HBM rating eliminates need for external TVS diodes; dual-emitter pins improve long-term contact reliability under vibration. |
Use Scenario: Output stage in 24V/5A DC-DC converter auxiliary supply or battery-powered industrial sensor hub. IC Role / Device Role / Timing Role: Regulated pass transistor or synchronous rectifier driver; biased in linear or switching mode depending on topology. Use Value: 50mΩ RSAT and 41.7°C/W RθJA allow operation at full load without forced air cooling on standard FR-4 layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN medium-power switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXTN2012E6TA | VCEO = 20V, IC = 4A, VCE(sat) = 180mV @ 4A, SOT23 package | Lower current rating and higher saturation voltage; unsuitable for 5A continuous loads | Select only for space-constrained designs where peak current ≤4A and thermal budget allows higher VCE(sat). |
| MJD127G | VCEO = 100V, IC = 2A, hFE = 30–150 @ 1A, TO-220 package | Higher voltage rating but lower current and gain; larger footprint and inferior thermal resistance (RθJA ≈ 65°C/W) | Prefer for high-voltage, low-frequency linear regulation; avoid when 5A/low-RSAT or SMT assembly is required. |
Compared with ZXTN2012E6TA and MJD127G, FZT1048ATC uniquely combines 5A continuous current, 50mΩ RSAT, and SOT223 manufacturability - making it optimal for high-density, thermally demanding 12–24V industrial switching where both current capacity and thermal efficiency are critical.
Availability
FZT1048ATC is available at Aetrix Electronics and suitable for solenoid drivers, DC motor controls, relay replacement modules, and industrial DC power modules requiring stable component supply, AEC-Q101-aligned quality, and RoHS-compliant green packaging.
Supply support for FZT1048ATC 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 industrial, automotive, and computing markets.
FZT1048ATC belongs to Diodes' high-gain medium-power transistor product line, engineered specifically for robust, high-current switching in space-constrained 12V–24V systems where thermal efficiency and AEC-Q101 readiness are essential.
FAQ
What is the maximum continuous collector current for FZT1048ATC under standard PCB conditions?
The FZT1048ATC is rated for 5A continuous collector current when mounted on a 52mm × 52mm 2oz copper area on FR-4 PCB under still-air conditions. Derating applies beyond +25°C ambient: power dissipation drops linearly to zero at +150°C junction temperature, per the published derating curve.
Does FZT1048ATC support automotive qualification standards?
FZT1048ATC is AEC-Q101 qualified and manufactured in IATF 16949 certified facilities. While not pre-certified out-of-box, Diodes provides PPAP documentation and change control support for automotive programs - confirmation requires formal engagement with Diodes' automotive team and submission of project-specific requirements.
How does the dual-emitter pin configuration (Pins 1 and 4) affect PCB layout?
Pins 1 and 4 are internally shorted emitters; using both improves current sharing and reduces parasitic inductance. Layout best practice is to connect both to the same low-impedance ground plane with symmetric copper pours - this lowers thermal resistance by ~15% and enhances surge current handling without requiring additional vias or layers.
Can FZT1048ATC be used in linear regulator applications?
Yes - its 3.0W maximum power dissipation (on 52mm×52mm 2oz Cu), 17.5V VCEO, and hFE stability up to 5A support linear pass operation. However, VCE(sat) is optimized for switching; for linear use, ensure junction temperature stays below 150°C using the provided RθJA values and transient thermal impedance curves.
FZT1048ATC 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:
- NPN
- Current - Collector (Ic) (Max):
- 5 A
- Voltage - Collector Emitter Breakdown (Max):
- 17.5 V
- Vce Saturation (Max) @ Ib, Ic:
- 350mV @ 25mA, 5A
- Current - Collector Cutoff (Max):
- 10nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 300 @ 1A, 2V
- Power - Max:
- 2.5 W
- Frequency - Transition:
- 150MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
FZT1048ATC FAQ
1.How can I place an order for FZT1048ATC through Aetrix?
Please submit a Request for Quotation (RFQ) for FZT1048ATC 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 FZT1048ATC reliable?
The price and inventory of FZT1048ATC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FZT1048ATC is usually 5 days.
3.What payment methods are accepted for FZT1048ATC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FZT1048ATC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FZT1048ATC?
FZT1048ATC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FZT1048ATC 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 FZT1048ATC?
For technical support, including FZT1048ATC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FZT1048ATC requirements.
6.How does Aetrix verify that FZT1048ATC is sourced from the original manufacturer or authorized distributors?
All FZT1048ATC 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 FZT1048ATC meets industry standards.
7.What is the process for return or replacement of FZT1048ATC?
All FZT1048ATC units undergo pre-shipment inspection (PSI). If there is an issue with FZT1048ATC, 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 FZT1048ATC part is unused and in its original packaging.
Return procedure for FZT1048ATC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FZT1048ATC Tags
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