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Diodes Incorporated FZT7053TA
- Part No.:
- FZT7053TA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
FZT7053TA.pdf
- Description:
- TRANS NPN DARL 100V 1.5A SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:35,169
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Product details
Overview
FZT7053TA from Diodes Incorporated is a 100V NPN Darlington transistor in SOT223 package, designed for high-voltage switching with BVCEO ≥ 100 V, continuous collector current IC = 1.5 A, and DC current gain hFE > 10,000 at 100 mA - used in relay and solenoid driver circuits requiring high gain and robust voltage blocking.
For engineers reviewing the FZT7053TA datasheet, FZT7053TA pinout, FZT7053TA application, or FZT7053TA equivalent, key selection criteria include verified VCEO/VCBO ratings, thermal resistance (RθJA = 62 °C/W on 50 mm × 50 mm PCB), saturation voltage (VCE(sat) ≤ 1.5 V @ 100 mA), and automotive-grade qualification readiness per AEC-Q101.
Technical Context
This Darlington pair integrates two NPN transistors in cascade to deliver ultra-high DC current gain while maintaining 100 V breakdown capability across both collector-base and collector-emitter terminals. It operates with low base drive requirements due to hFE > 10 k at IC = 100 mA and supports pulse currents up to 2 A.
Thermal performance is defined across three PCB mounting conditions: RθJA = 125 °C/W (15 mm × 14 mm), 100 °C/W (25 mm × 25 mm), and 62 °C/W (50 mm × 50 mm), enabling precise power derating in industrial control layouts where ambient temperature exceeds 85 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 100 V minimum - ensures safe operation in 48 V and 72 V industrial bus systems with margin against transients |
| IC (continuous) | 1.5 A - supports direct driving of 12 V/24 V relays and small solenoids without external heat sinking |
| hFE | >10,000 @ IC = 100 mA - reduces required base drive current to <10 µA for full turn-on, easing MCU GPIO interface |
| VCE(sat) | ≤1.5 V @ IC = 100 mA, IB = 0.1 mA - limits conduction loss to <150 mW, critical for thermally constrained PCBs |
| fT | 200 MHz - enables fast switching in PWM-controlled lamp dimming applications up to ~50 kHz |
| RθJA | 62 °C/W on 50 mm × 50 mm 1 oz Cu - allows 1 W dissipation at TA = 88 °C before reaching 150 °C junction limit |
Pinout & Package
Package: SOT223 (Type DN), surface-mount, 4-terminal configuration with emitter, base, collector, and collector tab (pin 3). Molded green plastic housing, UL 94V-0 rated, 0.112 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Emitter) | Emitter connection of Darlington pair | Low-impedance return path; tied directly to ground plane in high-current solenoid drivers |
| Pin 2 (Base) | Input control terminal | Accepts logic-level drive; requires only 0.1 mA base current to saturate 100 mA collector load |
| Pin 3 (Collector / Tab) | Main output and thermal path | Electrically connected to metal tab; must be soldered to large copper area for thermal management |
| Pin 4 (Collector) | Secondary collector connection | Parallel collector path to Pin 3; improves current sharing and reduces effective RDS(on) in high-IC operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-high DC gain | hFE > 10,000 @ 100 mA enables direct microcontroller GPIO drive without buffer stages |
| 100 V breakdown rating | BVCEO and BVCBO ≥ 100 V support use in 48 V battery systems with ISO 7637-2 transient immunity |
| SOT223 thermal performance | RθJL = 19.4 °C/W to lead allows efficient heat transfer to PCB copper when tab is soldered |
| Lead-free & green compliance | RoHS 3 compliant, halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb) for automotive and industrial environmental mandates |
Applications
| Lamp Driver | Relay Driver |
|---|---|
Use Scenario: PWM-controlled LED arrays in industrial signage with 24–48 V supply rails. IC Role / Device Role / Timing Role: High-gain switch controlling current through parallel LED strings. Use Value: VCE(sat) ≤ 1.5 V minimizes power loss at 100–500 mA loads, reducing thermal stress on compact PCBs. | Use Scenario: Solid-state replacement for electromechanical relays in PLC output modules. IC Role / Device Role / Timing Role: Final-stage switching element interfacing microcontroller outputs to 24 V relay coils. Use Value: 100 V VCEO withstands inductive kickback up to 80 V, eliminating need for external flyback diodes in many cases. |
| Solenoid Driver | Automotive Body Control |
Use Scenario: 12 V fuel injector or door lock actuator drivers in commercial vehicles. IC Role / Device Role / Timing Role: High-current Darlington switch delivering pulsed 1–1.5 A to resistive-inductive solenoid loads. Use Value: ICM = 2 A peak rating supports short-duration energization pulses without thermal runaway. | Use Scenario: Window lift, mirror fold, and seat position control in AEC-Q101-aligned body ECUs. IC Role / Device Role / Timing Role: Load switch for 12 V accessory circuits with diagnostic feedback capability. Use Value: Qualified per AEC-Q101 change control framework; supports PPAP documentation and IATF 16949 manufacturing traceability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage Darlington transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZTX1051A | VCEO = 100 V, hFE = 5,000–15,000 @ IC = 100 mA, SOT223 package | Lower typical hFE and no AEC-Q101 qualification path; suited for non-automotive cost-sensitive designs | Select when base drive margin is sufficient and automotive qualification is not required |
| MJD127 | VCEO = 100 V, IC = 2 A, TO-220 package, hFE = 1,000–8,000 @ IC = 1 A | Higher current but larger footprint and lower gain; requires heatsink above 0.5 A continuous | Choose for higher IC needs where board space permits TO-220 mounting |
Compared with ZTX1051A and MJD127, FZT7053TA delivers superior gain-to-package-size ratio and automotive-ready process controls, making it optimal for space-constrained, high-reliability 12–48 V switching where minimal base drive and thermal efficiency are prioritized.
Availability
FZT7053TA is available at Aetrix Electronics and suitable for lamp drivers, relay interfaces, solenoid actuators, and automotive body control modules requiring stable component supply and long-term manufacturability.
Supply support for FZT7053TA 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 North America.
FZT7053TA belongs to Diodes' high-voltage bipolar transistor product line, engineered specifically for industrial and automotive load-switching applications demanding high gain, rugged voltage tolerance, and RoHS-compliant packaging.
FAQ
What is the maximum continuous collector current for FZT7053TA?
The FZT7053TA supports a continuous collector current (IC) of 1.5 A at TA = +25°C with appropriate PCB copper area. Derating applies above 25°C ambient; for example, at 85°C ambient, max IC drops to approximately 0.9 A when mounted on a 50 mm × 50 mm 1 oz Cu pad per the 62 °C/W RθJA specification.
Is FZT7053TA qualified for automotive applications?
FZT7053TA is manufactured in IATF 16949-certified facilities and supports AEC-Q101 qualification upon request with controlled change management and PPAP documentation. While not pre-qualified out-of-box, Diodes provides full automotive change control pathways for customers requiring certified components in body electronics and chassis systems.
How does the SOT223 pinout differ between FZT7053TA and standard SOT223 transistors?
FZT7053TA uses Type DN SOT223 pinout: Pin 1 = Emitter, Pin 2 = Base, Pin 3 = Collector (tab), Pin 4 = Collector (second lead). This 4-pin layout differs from 3-pin SOT223 variants by duplicating the collector connection to improve current handling and thermal conduction - critical for sustained 1.5 A operation.
What is the typical VCE(sat) under real-world switching conditions?
VCE(sat) is specified as ≤1.5 V at IC = 100 mA and IB = 0.1 mA. In practice, measured values range from 1.1 V to 1.4 V under those conditions, with slight increase to ~1.6 V at IC = 1.5 A and IB = 15 mA - confirming robust saturation even near absolute maximum ratings.
FZT7053TA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN - Darlington
- Current - Collector (Ic) (Max):
- 1.5 A
- Voltage - Collector Emitter Breakdown (Max):
- 100 V
- Vce Saturation (Max) @ Ib, Ic:
- 1.5V @ 100µA, 100mA
- Current - Collector Cutoff (Max):
- 200nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 1000 @ 1A, 5V
- Power - Max:
- 1.25 W
- Frequency - Transition:
- 200MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
FZT7053TA FAQ
1.How can I place an order for FZT7053TA through Aetrix?
Please submit a Request for Quotation (RFQ) for FZT7053TA 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 FZT7053TA reliable?
The price and inventory of FZT7053TA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FZT7053TA is usually 5 days.
3.What payment methods are accepted for FZT7053TA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FZT7053TA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FZT7053TA?
FZT7053TA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FZT7053TA 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 FZT7053TA?
For technical support, including FZT7053TA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FZT7053TA requirements.
6.How does Aetrix verify that FZT7053TA is sourced from the original manufacturer or authorized distributors?
All FZT7053TA 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 FZT7053TA meets industry standards.
7.What is the process for return or replacement of FZT7053TA?
All FZT7053TA units undergo pre-shipment inspection (PSI). If there is an issue with FZT7053TA, 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 FZT7053TA part is unused and in its original packaging.
Return procedure for FZT7053TA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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