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Diodes Incorporated FZT593TA
- Part No.:
- FZT593TA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
FZT593TA.pdf
- Description:
- TRANS PNP 100V 1A SOT-223-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,930
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Product details
Overview
FZT593TA from Diodes Incorporated is a 100V PNP medium-power bipolar junction transistor in SOT223 package, rated for -1A continuous collector current and -100V collector-emitter breakdown voltage, with low saturation voltage (VCE(sat) = -0.2 V at IC = -250 mA, IB = -25 mA), used in high-voltage linear regulators and industrial power switching circuits.
For engineers reviewing the FZT593TA datasheet, FZT593TA pinout, FZT593TA application, or FZT593TA equivalent, key selection criteria include verified BVCEO ≥ -100 V, thermal resistance RθJA = 41.7 °C/W on 50 mm × 50 mm 2 oz copper, complementary pairing with FZT493, and AEC-Q101 readiness for automotive-grade designs.
Technical Context
The FZT593TA operates as a high-voltage PNP switch with DC current gain (hFE) of 100–300 across IC = -1 mA to -1 A at VCE = -5 V, supporting stable amplification and switching in demanding bias conditions. Its fT = 50 MHz enables moderate-frequency signal handling in driver stages.
Thermal performance is defined by RθJL = 19.4 °C/W (junction-to-lead) and derated power dissipation down to 1.2 W under minimum pad layout - critical for PCB-level thermal design in space-constrained industrial modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -100 V - Ensures safe operation in 80 V rail systems with margin against transients |
| IC (cont.) | -1 A - Supports medium-power load switching without forced cooling |
| VCE(sat) | -0.2 V @ IC = -250 mA - Minimizes conduction loss in linear regulator pass elements |
| hFE | 100–300 - Enables predictable base drive sizing across operating range |
| fT | 50 MHz - Suitable for audio amplifier drivers and PWM gate buffers |
| RθJA | 41.7 °C/W - Requires ≥50 mm × 50 mm 2 oz copper for full 3.0 W dissipation |
Pinout & Package
Package: SOT223 (Type DN), surface-mount, 4-pin configuration with collector tab (pin 1), emitter (pin 2), base (pin 3), and collector (pin 4). Molded plastic housing with matte tin-plated leads; UL 94V-0 rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Collector Tab) | Main collector connection + thermal path | Electrically and thermally connected to internal collector; soldered to large copper pour for heat dissipation |
| Pin 2 (Emitter) | Emitting terminal for PNP current flow | Connected to circuit ground or low-side reference in high-side switch configurations |
| Pin 3 (Base) | Control input for transistor turn-on/off | Requires negative base current relative to emitter to saturate; compatible with standard logic-level drivers |
| Pin 4 (Collector) | Secondary collector connection | Internally tied to Pin 1; provides redundant current path and mechanical stability |
Key Features
| Feature | Design Value |
|---|---|
| High BVCEO | -100 V rating supports 72 V battery systems and industrial 100 V bus applications |
| Low VCE(sat) | -0.2 V at moderate current reduces power loss by >40% vs. legacy PNP transistors |
| Complementary pair | FZT493 NPN counterpart enables matched push-pull output stages |
| AEC-Q101 capable | Qualified for automotive use with PPAP support and IATF 16949 manufacturing |
Applications
| Industrial Linear Regulators | Automotive Body Control Modules |
|---|---|
|
Use Scenario: High-voltage adjustable LDO using PNP pass transistor in emitter-follower configuration. IC Role / Device Role / Timing Role: PNP pass element regulating 24–80 V input to stable 5–12 V output. Use Value: Low VCE(sat) minimizes dropout voltage and thermal stress under full load. |
Use Scenario: Load switching for interior lighting, window motors, and HVAC actuators. IC Role / Device Role / Timing Role: High-side PNP switch controlled by microcontroller GPIO with pull-up bias. Use Value: -100 V BVCEO withstands load-dump transients up to ISO 7637-2 Pulse 5a. |
| DC-DC Converter Bias Supplies | Programmable Current Sources |
|
Use Scenario: Auxiliary bias supply for gate drivers and controllers in isolated flyback converters. IC Role / Device Role / Timing Role: PNP-based shunt regulator providing stable 15 V reference for IC power rails. Use Value: Stable hFE over temperature ensures consistent regulation across -40°C to +125°C. |
Use Scenario: Precision constant-current sink for LED arrays and sensor excitation. IC Role / Device Role / Timing Role: PNP current mirror master transistor with feedback-controlled base bias. Use Value: Tight hFE distribution (100–300) enables <±5% current matching without trimming. |
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 |
|---|---|---|---|
| MJD5753T4G | VCEO = -100 V, IC = -1 A, but RθJA = 62.5 °C/W (25 mm × 25 mm 2 oz Cu); no AEC-Q101 qualification | Limited to non-automotive industrial use due to lack of automotive qualification and higher thermal resistance | Select when cost sensitivity outweighs thermal performance and automotive compliance requirements |
| BCP53-16 | VCEO = -45 V, IC = -1 A, hFE = 100–250; smaller SOT-223 variant with lower voltage rating | Not suitable for >60 V systems; requires redesign for 80 V bus compatibility | Choose only for legacy 24/48 V designs where voltage margin is sufficient and footprint compatibility is critical |
Compared with MJD5753T4G and BCP53-16, FZT593TA delivers superior thermal performance on standard PCB layouts and automotive-grade reliability - essential for high-voltage, high-reliability industrial and vehicle subsystems.
Availability
FZT593TA is available at Aetrix Electronics and suitable for industrial linear regulators, automotive body control modules, DC-DC converter bias supplies, and programmable current sources requiring stable component supply and long-term lifecycle support.
Supply support for FZT593TA 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 the Americas.
FZT593TA belongs to Diodes' high-voltage bipolar transistor product line, engineered for robustness in automotive, industrial, and power management applications where voltage margin, thermal stability, and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum continuous collector current for FZT593TA?
The FZT593TA is rated for -1 A continuous collector current at TA = +25°C with proper PCB thermal management (50 mm × 50 mm 2 oz copper). Derating applies above +25°C ambient per the published thermal curve - e.g., ~1.6 W max at +70°C ambient on same layout.
Is FZT593TA qualified for automotive applications?
Yes - FZT593TA is AEC-Q101 qualified, manufactured in IATF 16949 certified facilities, and supports PPAP documentation. It meets automotive transient immunity requirements including load dump (ISO 7637-2 Pulse 5a) due to its -100 V VCEO rating and robust construction.
How does the SOT223 (Type DN) package improve thermal performance?
The SOT223 (Type DN) package features an exposed collector tab (Pin 1) that serves as both electrical connection and primary thermal path. When soldered to ≥50 mm × 50 mm 2 oz copper, it achieves RθJA = 41.7 °C/W - enabling full 3.0 W power dissipation without heatsinks in compact industrial modules.
What is the complementary NPN part for FZT593TA?
The officially designated complementary NPN transistor is FZT493, sharing identical SOT223 (Type DN) packaging, voltage ratings (VCEO = +100 V), current capability (+1 A), and thermal characteristics. This pairing enables matched push-pull output stages and H-bridge driver designs with balanced switching behavior.
FZT593TA 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:
- PNP
- Current - Collector (Ic) (Max):
- 1 A
- Voltage - Collector Emitter Breakdown (Max):
- 100 V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 50mA, 500mA
- Current - Collector Cutoff (Max):
- 100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 500mA, 5V
- Power - Max:
- 2 W
- Frequency - Transition:
- 50MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
FZT593TA FAQ
1.How can I place an order for FZT593TA through Aetrix?
Please submit a Request for Quotation (RFQ) for FZT593TA 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 FZT593TA reliable?
The price and inventory of FZT593TA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FZT593TA is usually 5 days.
3.What payment methods are accepted for FZT593TA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FZT593TA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FZT593TA?
FZT593TA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FZT593TA 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 FZT593TA?
For technical support, including FZT593TA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FZT593TA requirements.
6.How does Aetrix verify that FZT593TA is sourced from the original manufacturer or authorized distributors?
All FZT593TA 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 FZT593TA meets industry standards.
7.What is the process for return or replacement of FZT593TA?
All FZT593TA units undergo pre-shipment inspection (PSI). If there is an issue with FZT593TA, 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 FZT593TA part is unused and in its original packaging.
Return procedure for FZT593TA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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