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Diodes Incorporated FZT968TC
- Part No.:
- FZT968TC
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
FZT968TC.pdf
- Description:
- TRANS PNP 12V 6A SOT-223-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,808
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Product details
Overview
FZT968TC from Diodes Incorporated is a 12V PNP medium-power transistor in SOT223 package, rated for -6A continuous collector current and -20A peak pulse current, with VCE(sat) < -170mV at -2A and hFE ≥ 200 up to -10A. It serves as a high-current switching or linear amplification device in automotive power management, industrial DC-DC converters, and LED driver stages.
For engineers reviewing the FZT968TC datasheet, FZT968TC pinout, FZT968TC application, or FZT968TC equivalent, key selection criteria include its -12V VCEO, low saturation voltage under high IC, thermal resistance of 42°C/W (52mm × 52mm 2oz Cu), AEC-Q101 qualification readiness, and SOT223 lead-frame thermal performance.
Technical Context
The FZT968TC operates as a silicon PNP bipolar junction transistor optimized for medium-power switching and linear regulation. Its design emphasizes high current handling (-6A continuous), robust safe operating area (SOA) up to -12V/-6A DC, and stable gain (hFE = 200–450) across 0.5A–10A collector current range.
Thermal performance is defined by RθJA = 42°C/W on 52mm × 52mm 2oz copper PCB and RθJL = 8.8°C/W to lead, enabling reliable operation up to +150°C junction temperature. ESD ratings meet 4kV HBM (JEDEC Class 3A) and 400V MM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -12 V - Maximum allowable collector-emitter voltage before breakdown in common-emitter configuration |
| IC (continuous) | -6 A - Sustained collector current capability without thermal derating on standard PCB layout |
| VCE(sat) | < -170 mV @ -2A/-50mA - Low conduction loss enabling efficient switching in high-current loads |
| hFE | 200–450 @ -5A to -10mA - High and stable DC current gain supporting precise base drive design |
| RθJA | 42 °C/W - Thermal resistance defining maximum power dissipation (3.0 W) at ambient +25°C |
| fT | 80 MHz - Transition frequency indicating usable bandwidth for medium-speed switching (e.g., ≤100 kHz PWM) |
| ESD HBM | 4,000 V - Robustness against human-body electrostatic discharge during handling and assembly |
Pinout & Package
Package: SOT223 (Type DN), surface-mount, 4-pin (3 active + 1 thermal tab), molded green plastic, UL 94V-0 rated, 0.112 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Collector (C) | Main current sink terminal | Connected to thermal tab; primary heat path to PCB copper; requires large copper pour for thermal management |
| Emitter (E) | Current source terminal | Common reference node in PNP switch configurations; tied to higher potential rail |
| Base (B) | Control input | Receives negative bias current to turn on; requires current-limiting resistor per hFE and IC target |
| Tab / Pin 4 | Collector extension | Electrically and thermally connected to collector; must be soldered to PCB ground plane or dedicated power plane |
Key Features
| Feature | Design Value |
|---|---|
| High current capability | -6A continuous rating enables direct drive of solenoids, relays, and motor windings without external buffering |
| Low VCE(sat) | < -170mV at -2A reduces conduction losses and self-heating in high-duty-cycle applications |
| Stable hFE up to -10A | Gain retention supports predictable base drive sizing across wide load current range |
| AEC-Q101 readiness | Manufactured in IATF 16949-certified facilities; PPAP-capable for automotive power modules |
| Green construction | Halogen- and antimony-free, RoHS-compliant molding compound meets automotive environmental standards |
Applications
| Automotive Body Control Module | Industrial DC-DC Converter |
|---|---|
Use Scenario: Switching 12V loads such as door locks, window motors, and HVAC actuators in BCMs. IC Role / Device Role / Timing Role: PNP high-side switch controlling load current flow from battery rail to ground. Use Value: -6A rating and -12V VCEO ensure compatibility with automotive 12V systems; low VCE(sat) minimizes heat generation in confined modules. | Use Scenario: Regulating output stage in non-isolated buck or inverting converter for industrial sensors. IC Role / Device Role / Timing Role: Linear pass element or synchronous rectifier control switch in adjustable voltage regulator. Use Value: Stable hFE up to -10A allows precise current mirroring; RθJL = 8.8°C/W supports direct thermal coupling to heatsink via collector tab. |
| LED Driver for Commercial Lighting | Power Supply OR-ing Circuit |
Use Scenario: Constant-current switching for high-brightness LED strings in streetlight drivers. IC Role / Device Role / Timing Role: High-side current sink modulated by PWM controller to regulate LED current. Use Value: SOA compliance up to -12V/-6A ensures safe operation during transient overloads; 4kV HBM protects against assembly ESD damage. | Use Scenario: Redundant 12V supply selection in telecom power shelves using discrete OR-ing. IC Role / Device Role / Timing Role: PNP-based ideal diode replacement with fast turn-on/turn-off (ton/toff ≈ 120/116 ns). Use Value: Fast switching and low VCE(sat) reduce forward drop and power loss versus Schottky diodes; SOT223 thermal tab improves reliability under sustained load. |
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 |
|---|---|---|---|
| ZXTN25050DFH | SOT89 package; lower IC (-3.5A); higher VCE(sat) (-250mV @ -1.75A); fT = 140MHz | Better high-frequency response but insufficient for >4A continuous loads | Select when board space is constrained and current demand ≤3.5A |
| MJD2955T4G | TO-220 package; higher IC (-10A); larger footprint; RθJA = 65°C/W (no heatsink) | Higher power handling but requires mechanical mounting and heatsinking | Select when thermal budget allows TO-220 and peak current exceeds 6A |
Compared with ZXTN25050DFH and MJD2955T4G, the FZT968TC delivers optimal balance of SMT manufacturability, 6A continuous capability, and 42°C/W thermal performance on standard PCBs-making it preferred for space-constrained automotive and industrial modules where thermal pad integration is feasible.
Availability
FZT968TC is available at Aetrix Electronics and suitable for automotive body control modules, industrial DC-DC converters, and commercial LED driver designs requiring stable component supply, AEC-Q101-aligned manufacturing, and RoHS-compliant green packaging.
Supply support for FZT968TC 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.
The FZT968TC belongs to Diodes' high-reliability power transistor product line, engineered specifically for automotive and industrial applications demanding robust SOA, low saturation voltage, and IATF 16949-certified production.
FAQ
What is the maximum junction temperature for continuous operation of the FZT968TC?
The FZT968TC has an operating junction temperature range of -55°C to +150°C. For continuous operation at full 3.0W power dissipation, ambient temperature must remain ≤ +85°C when mounted on 52mm × 52mm 2oz copper, based on RθJA = 42°C/W. Derating is required above this ambient.
Is the FZT968TC qualified to AEC-Q101?
The FZT968TC is manufactured in IATF 16949-certified facilities and is PPAP-capable. While not pre-qualified as a standard AEC-Q101 part, Diodes offers AEC-Q101 qualification upon customer request with change control and test documentation per automotive requirements.
How should the thermal tab (Pin 4) be connected on the PCB?
The thermal tab is electrically connected to the collector and must be soldered to a minimum 25mm² copper pour (ideally 52mm × 52mm 2oz Cu) for rated RθJA = 42°C/W. Via stitching to internal ground/power planes is recommended to enhance thermal transfer and reduce junction temperature rise.
Can the FZT968TC replace the older FZT955 in existing designs?
Yes-the FZT968TC shares identical SOT223 (DN) package, pinout, and polarity with the FZT955 but offers improved specifications: higher IC (-6A vs. -5A), lower VCE(sat) (-170mV vs. -200mV @ -2A), and enhanced hFE stability up to -10A. No layout changes are needed for drop-in replacement.
FZT968TC 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:
- PNP
- Current - Collector (Ic) (Max):
- 6 A
- Voltage - Collector Emitter Breakdown (Max):
- 12 V
- Vce Saturation (Max) @ Ib, Ic:
- 450mV @ 250mA, 6A
- Current - Collector Cutoff (Max):
- 10nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 300 @ 500mA, 1V
- Power - Max:
- 3 W
- Frequency - Transition:
- 80MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
FZT968TC FAQ
1.How can I place an order for FZT968TC through Aetrix?
Please submit a Request for Quotation (RFQ) for FZT968TC 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 FZT968TC reliable?
The price and inventory of FZT968TC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FZT968TC is usually 5 days.
3.What payment methods are accepted for FZT968TC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FZT968TC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FZT968TC?
FZT968TC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FZT968TC 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 FZT968TC?
For technical support, including FZT968TC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FZT968TC requirements.
6.How does Aetrix verify that FZT968TC is sourced from the original manufacturer or authorized distributors?
All FZT968TC 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 FZT968TC meets industry standards.
7.What is the process for return or replacement of FZT968TC?
All FZT968TC units undergo pre-shipment inspection (PSI). If there is an issue with FZT968TC, 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 FZT968TC part is unused and in its original packaging.
Return procedure for FZT968TC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FZT968TC Tags
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