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Diodes Incorporated FZT600BTA
- Part No.:
- FZT600BTA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
FZT600BTA.pdf
- Description:
- TRANS NPN DARL 140V 2A SOT-223-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,705
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Product details
Overview
FZT600BTA from Diodes Incorporated is a 140V NPN Darlington transistor in SOT223 package, designed for high-voltage switching and amplification with BVCEO = 140 V, BVCBO = 160 V, IC = 2 A continuous, hFE ≥ 5000 at IC = 1 A, and qualified to AEC-Q101 for automotive reliability. It serves in industrial power control, relay drivers, and high-side load switches.
For engineers reviewing the FZT600BTA datasheet, FZT600BTA pinout, FZT600BTA application, or FZT600BTA equivalent, key selection criteria include guaranteed hFE up to 1 A, low VCE(sat) ≤ 1.2 V at 1 A, RoHS- and halogen-free "Green" compliance, and thermal resistance RθJA = 78.1 °C/W on minimal pad layout.
Technical Context
This NPN Darlington pair integrates two cascaded transistors to deliver high DC current gain (>5 k at 1 A) while maintaining robust voltage blocking capability. Its structure enables efficient high-voltage switching with low base drive requirements, supporting operation up to +150 °C junction temperature.
The device features a single-ended SOT223 (Type DN) package with collector-connected tab for enhanced thermal dissipation. Electrical behavior is characterized under pulsed conditions (≤300 µs, ≤2% duty cycle), with fT = 150–250 MHz and Cobo = 10–15 pF at 10 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 140 V - Enables use in 120 VAC line-switching and 48 V industrial bus applications without derating. |
| IC (cont.) | 2 A - Supports direct driving of solenoids, relays, and medium-power LEDs without external heat sinking. |
| hFE | ≥5000 @ IC = 1 A - Reduces required base current to ≤200 µA for full conduction, easing MCU GPIO drive. |
| VCE(sat) | ≤1.2 V @ IC = 1 A - Limits conduction loss to <1.2 W, critical for thermally constrained PCB layouts. |
| RθJA | 78.1 °C/W - Specifies thermal performance on minimum recommended pad layout per JESD51-7. |
| fT | 150–250 MHz - Supports fast switching in PWM dimming and motor commutation up to ~100 kHz. |
| ESD HBM | 2000 V - Provides robust handling during automated assembly and board-level integration. |
Pinout & Package
SOT223 (Type DN) surface-mount package with exposed collector tab for thermal and electrical connection. Molded green compound, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Emitter (E) | Current sink terminal | Connected to ground or low-side return path; must be routed with low-inductance trace for switching stability. |
| Base (B) | Control input | Receives low-current drive signal; requires series resistor to limit IB and prevent saturation delay. |
| Collector (C) | High-voltage output node | Tab-connected to PCB copper pour for thermal management; electrically tied to load supply rail. |
| Collector Tab | Thermal & electrical extension of collector | Must be soldered to ≥25 mm² 2 oz copper for rated 2 A operation; provides primary heat path to PCB. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per JEDEC standards. |
| Guaranteed hFE up to 1 A | Ensures predictable gain across production lots, eliminating need for binning or feedback compensation in linear regulators. |
| Lead-free & halogen-free "Green" construction | Meets EU RoHS 3 (2015/863/EU) and automotive ELV directive limits for Br/Cl (<900 ppm each) and Sb (<1000 ppm). |
| Low VBE(sat) | 1.7–1.9 V @ IC = 1 A - Enables stable turn-on with 3.3 V or 5 V logic-level drivers without level-shifting. |
| High VCBO | 160 V - Allows safe operation with transient overvoltages in inductive load switching (e.g., automotive solenoids). |
Applications
| Industrial Relay Drivers | Automotive Door Lock Actuators |
|---|---|
Use Scenario: Driving 24 V DC electromagnetic relays in PLC I/O modules with 100 ms switching cycles. IC Role / Device Role / Timing Role: High-gain Darlington switch providing >100× current amplification to interface microcontroller GPIO with relay coil. Use Value: Eliminates need for discrete driver stages; VCE(sat) ≤ 1.2 V ensures <1.2 W loss at 1 A, enabling compact board design. | Use Scenario: Controlling dual-coil door lock actuators in 12 V vehicle systems requiring bidirectional polarity reversal. IC Role / Device Role / Timing Role: High-voltage NPN switch in H-bridge half-bridge leg, handling 1.5 A peak coil current with AEC-Q101 reliability. Use Value: 140 V VCEO withstands load-dump transients up to ±100 V; RθJA = 78.1 °C/W supports operation at +105 °C ambient. |
| LED Constant-Current Drivers | High-Voltage Power Supply Enable |
Use Scenario: Linear current regulation for high-brightness LED strings in signage and architectural lighting (48–72 V bus). IC Role / Device Role / Timing Role: Pass element in adjustable constant-current sink topology, controlled by op-amp feedback. Use Value: hFE ≥ 5000 ensures stable loop gain; low VCE(sat) minimizes dropout voltage and improves efficiency at 1 A. | Use Scenario: Enabling/disabling auxiliary 48 V DC-DC converters in telecom power shelves during hot-swap events. IC Role / Device Role / Timing Role: High-side enable switch controlling converter input rail, activated by system supervisor IC. Use Value: 160 V VCBO prevents breakdown during 100 V surge tests; ESD HBM = 2000 V protects against board-handling damage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN Darlington transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZTX1051A | Lower VCEO = 100 V; hFE = 1000–5000 @ IC = 1 A; SOT89 package | Not suitable for >100 V applications; higher thermal resistance (RθJA = 125 °C/W) | Select only for 24–48 V systems where space constraints favor SOT89 footprint. |
| MJD122G | Higher IC = 8 A; TO-252 package; VCEO = 100 V; no AEC-Q101 qualification | Requires heatsink above 2 A; lacks automotive qualification and green compliance | Prefer for high-current industrial motor drives where qualification and environmental specs are secondary. |
Compared with ZTX1051A and MJD122G, FZT600BTA uniquely balances 140 V rating, AEC-Q101 qualification, SOT223 thermal performance, and guaranteed high hFE up to 1 A-making it optimal for space-constrained, high-reliability 48–120 V switching where consistent gain and low base drive are critical.
Availability
FZT600BTA is available at Aetrix Electronics and suitable for industrial relay drivers, automotive door lock actuators, and LED constant-current drivers requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for FZT600BTA 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.
FZT600BTA belongs to Diodes' high-voltage bipolar transistor product line, engineered specifically for robust switching in automotive, industrial, and power management systems demanding AEC-Q101 reliability and green compliance.
FAQ
What is the maximum continuous collector current for FZT600BTA?
The maximum continuous collector current is 2 A at TA = +25 °C with the collector lead mounted on 25 mm × 25 mm 1 oz copper (Note 7). Derating applies above +25 °C ambient: power dissipation drops linearly to zero at +150 °C junction temperature, per the published derating curve.
Is FZT600BTA pin-compatible with FZT600TA?
Yes-both share identical SOT223 (Type DN) mechanical outline, pin assignment (E-B-C-tab), and thermal pad layout. The only difference is hFE binning: FZT600BTA guarantees higher minimum gain (≥5000 at IC = 1 A) versus FZT600TA (≥1000), making them electrically interchangeable where gain margin is sufficient.
Does FZT600BTA require a heatsink in typical applications?
No heatsink is required for ≤1 A continuous operation on standard 25 mm × 25 mm 1 oz FR4 PCB, where RθJA = 78.1 °C/W yields ~78 °C rise at 1.2 W dissipation. At full 2 A with VCE(sat) = 1.2 V (2.4 W), a minimal copper pour (≥50 mm²) is recommended to maintain TJ < 125 °C.
How does the AEC-Q101 qualification impact FZT600BTA's use in non-automotive designs?
AEC-Q101 qualification ensures extended temperature operation (−55 to +150 °C), enhanced ESD robustness (2000 V HBM), and accelerated life testing (e.g., 1000 hrs HTRB), directly benefiting industrial and telecom applications exposed to thermal cycling, vibration, or harsh environments-even when automotive use is not intended.
FZT600BTA 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):
- 2 A
- Voltage - Collector Emitter Breakdown (Max):
- 140 V
- Vce Saturation (Max) @ Ib, Ic:
- 1.2V @ 10mA, 1A
- Current - Collector Cutoff (Max):
- 10µA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 10000 @ 500mA, 10V
- Power - Max:
- 2 W
- Frequency - Transition:
- 250MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
FZT600BTA FAQ
1.How can I place an order for FZT600BTA through Aetrix?
Please submit a Request for Quotation (RFQ) for FZT600BTA 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 FZT600BTA reliable?
The price and inventory of FZT600BTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FZT600BTA is usually 5 days.
3.What payment methods are accepted for FZT600BTA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FZT600BTA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FZT600BTA?
FZT600BTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FZT600BTA 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 FZT600BTA?
For technical support, including FZT600BTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FZT600BTA requirements.
6.How does Aetrix verify that FZT600BTA is sourced from the original manufacturer or authorized distributors?
All FZT600BTA 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 FZT600BTA meets industry standards.
7.What is the process for return or replacement of FZT600BTA?
All FZT600BTA units undergo pre-shipment inspection (PSI). If there is an issue with FZT600BTA, 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 FZT600BTA part is unused and in its original packaging.
Return procedure for FZT600BTA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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