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Diodes Incorporated FZT1053ATA
- Part No.:
- FZT1053ATA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
FZT1053ATA.pdf
- Description:
- TRANS NPN 75V 4.5A SOT-223-3
- Quantity:
- Payment:
- Shipping:
Inventory:27,428
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Product details
Overview
FZT1053ATA from Diodes Incorporated is a 75V NPN medium-power high-gain transistor in SOT223 package, rated for 4.5A continuous collector current, 10A peak pulse current, and VCE(sat) < 120mV at 1A. It delivers hFE > 300 at IC = 1A and RCE(sat) = 78mΩ at 4.5A, supporting high-efficiency switching in automotive power management and industrial motor control circuits.
For engineers reviewing the FZT1053ATA datasheet, FZT1053ATA pinout, FZT1053ATA application, or FZT1053ATA equivalent, key selection criteria include its AEC-Q101 qualification, low saturation voltage under high-current drive, thermal resistance of 41.7°C/W (52mm × 52mm 2oz Cu), and verified safe operating area up to 75V/4.5A DC conditions.
Technical Context
This NPN bipolar junction transistor operates with a minimum BVCEO of 75V and supports linear and saturated switching modes. Its high DC current gain (hFE ≥ 300 at IC = 1A) enables low-base-drive requirements, while its 78mΩ effective on-resistance at 4.5A reduces conduction losses in high-side switch configurations.
The device features robust thermal performance: RθJA = 41.7°C/W under optimized PCB layout, and RθJL = 10.9°C/W to lead-critical for thermally constrained automotive modules. ESD ratings meet 4kV HBM (Class 3A) and 400V MM, supporting assembly in standard manufacturing environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 75 V - Maximum collector-emitter voltage before breakdown; defines upper rail limit in 48V automotive systems. |
| IC (continuous) | 4.5 A - Sustained current handling capacity; supports 20W+ load switching without forced cooling. |
| VCE(sat) @ 1A | < 120 mV - Low saturation voltage minimizes power loss (≤120mW) and self-heating at nominal load. |
| hFE @ 1A | > 300 - High DC current gain reduces required base drive current to ≤3.3mA for full turn-on. |
| RCE(sat) | 78 mΩ @ 4.5A - Equivalent on-resistance enables accurate power loss modeling in thermal design. |
| PD | 3.0 W - Maximum steady-state power dissipation on 52mm × 52mm 2oz Cu PCB; sets heatsink sizing baseline. |
| fT | 140 MHz - Transition frequency supports fast switching (>100kHz PWM) with minimal gain roll-off. |
Pinout & Package
SOT223 package: surface-mount, 4-lead (3 active + 1 thermal tab), molded green plastic housing with UL 94V-0 flammability rating and matte tin-plated leads solderable per MIL-STD-202.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Emitter (E) | Current sink terminal | Connected to ground or low-side return path; carries full load current in common-emitter configuration. |
| Base (B) | Control input | Receives low-current drive signal; requires ~3.3mA for full saturation at 4.5A collector current. |
| Collector (C) | Current source terminal | Connected to load supply rail; handles high-side switching when used with external driver or bootstrap circuit. |
| Tab / Collector Pad | Thermal and electrical connection | Internally tied to collector; must be soldered to large copper pour for thermal dissipation and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements including HTOL, TC, and HTRB. |
| Low VCE(sat) at high current | 150mV max at IC = 2A ensures <300mW conduction loss, enabling compact thermal design. |
| High hFE stability | hFE ≥ 300 maintained from 0.5A to 1A, reducing base drive variability across production lots. |
| Green compound packaging | Halogen- and antimony-free molding compound (<900ppm Br/Cl, <1000ppm Sb) meets automotive environmental compliance. |
| ESD robustness | 4kV HBM rating eliminates need for external protection diodes in most board-level ESD environments. |
Applications
| Automotive Body Control Module (BCM) | Industrial DC Motor Driver |
|---|---|
Use Scenario: Driving solenoids, relays, and LED arrays in vehicle door modules and lighting controllers. IC Role / Device Role / Timing Role: High-current NPN switch controlling 12V/24V loads with PWM dimming or timed actuation. Use Value: 4.5A continuous rating and AEC-Q101 qualification ensure reliable operation over -40°C to +125°C ambient. | Use Scenario: Controlling brushed DC motors in factory automation equipment and HVAC actuators. IC Role / Device Role / Timing Role: Low-side switching element in H-bridge half-bridge stage or single-direction drive. Use Value: 78mΩ RCE(sat) limits I²R loss to <1.6W at 4.5A, reducing heatsink requirements by 40% vs. legacy transistors. |
| Telecom Power Supply OR-ing | Smart Energy Meter Load Switch |
Use Scenario: Reverse-polarity and fault-isolation switching in redundant 48V telecom rectifier outputs. IC Role / Device Role / Timing Role: Active OR-ing diode replacement in hot-swap power distribution paths. Use Value: VCE(sat) < 120mV at 1A cuts forward drop by 60% versus Schottky diodes, improving system efficiency by ~1.2%. | Use Scenario: Remote-controlled load disconnect in utility-grade electricity meters with tamper detection. IC Role / Device Role / Timing Role: Isolation switch between metering IC and mains-connected load terminals. Use Value: 75V VCEO withstands surge transients per IEC 61000-4-5 Level 3 (2kV), ensuring long-term reliability in harsh grid environments. |
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 |
|---|---|---|---|
| ZXTN19020CFFTA | Higher VCEO (100V), lower hFE (100–200), SOT89 package | Better for 48V+ telecom systems; less suitable for low-base-drive automotive BCMs | Select when higher voltage margin outweighs gain and thermal performance needs. |
| MJD127G | TO-220 package, higher PD (15W), but no AEC-Q101 qualification | Requires heatsink; not approved for automotive use despite higher power rating | Prefer only for non-automotive industrial controls where qualification is not mandated. |
Compared with ZXTN19020CFFTA and MJD127G, FZT1053ATA uniquely balances AEC-Q101 compliance, SOT223 surface-mount scalability, and high gain–low saturation trade-off-making it optimal for space-constrained, thermally managed automotive and industrial switching nodes requiring 4–5A DC capability.
Availability
FZT1053ATA is available at Aetrix Electronics and suitable for automotive body control modules, industrial motor drivers, telecom OR-ing circuits, and smart energy meter load switches requiring stable component supply and long-term lifecycle support.
Supply support for FZT1053ATA 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 and manufacturing operations across Asia and the U.S.
The FZT series targets high-reliability medium-power switching applications, emphasizing AEC-Q101 qualification, thermal efficiency, and green packaging for automotive and industrial markets.
FAQ
What is the maximum allowable junction temperature for FZT1053ATA?
The FZT1053ATA has an operating junction temperature range of –55°C to +150°C. Its absolute maximum TJ is +150°C, and derating begins at +25°C ambient per the published thermal resistance curves-RθJA = 41.7°C/W on 52mm × 52mm 2oz Cu PCB. Exceeding this limit risks parametric shift and accelerated failure.
Is FZT1053ATA pin-compatible with other SOT223 NPN transistors?
No universal pin compatibility exists across SOT223 NPN transistors. FZT1053ATA uses emitter-base-collector-tab pinout (E-B-C-C), confirmed in Diodes' DS33185 Rev. 4–2. Substitutes like ZXTN19020CFFTA use different pin assignments (E-C-B-C), requiring PCB layout revision.
Does FZT1053ATA require a base resistor in all applications?
Yes-a base resistor is mandatory to limit IB and prevent thermal runaway. With hFE ≥ 300 at IC = 1A, a 1kΩ resistor from 5V logic yields ~4.3mA IB, safely saturating the device. Omitting it risks excessive base current and secondary breakdown.
Can FZT1053ATA be used in linear amplifier mode?
It is not recommended. While hFE and fT support small-signal amplification, the device is optimized for switching: its SOA curve restricts linear operation to low-voltage, low-current regions (<10V, <0.5A). Amplifier designs should use purpose-built RF or audio transistors instead.
FZT1053ATA 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
- Current - Collector (Ic) (Max):
- 4.5 A
- Voltage - Collector Emitter Breakdown (Max):
- 75 V
- Vce Saturation (Max) @ Ib, Ic:
- 440mV @ 200mA, 4.5A
- Current - Collector Cutoff (Max):
- 10nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 300 @ 500mA, 2V
- Power - Max:
- 2.5 W
- Frequency - Transition:
- 140MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
FZT1053ATA FAQ
1.How can I place an order for FZT1053ATA through Aetrix?
Please submit a Request for Quotation (RFQ) for FZT1053ATA 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 FZT1053ATA reliable?
The price and inventory of FZT1053ATA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FZT1053ATA is usually 5 days.
3.What payment methods are accepted for FZT1053ATA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FZT1053ATA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FZT1053ATA?
FZT1053ATA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FZT1053ATA 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 FZT1053ATA?
For technical support, including FZT1053ATA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FZT1053ATA requirements.
6.How does Aetrix verify that FZT1053ATA is sourced from the original manufacturer or authorized distributors?
All FZT1053ATA 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 FZT1053ATA meets industry standards.
7.What is the process for return or replacement of FZT1053ATA?
All FZT1053ATA units undergo pre-shipment inspection (PSI). If there is an issue with FZT1053ATA, 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 FZT1053ATA part is unused and in its original packaging.
Return procedure for FZT1053ATA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FZT1053ATA Tags
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