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Diodes Incorporated FZT869TC
- Part No.:
- FZT869TC
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
FZT869TC.pdf
- Description:
- TRANS NPN 25V 7A SOT-223-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,289
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Product details
Overview
FZT869TC from Diodes Incorporated is a 25V NPN high-current transistor in SOT223 package, rated for 7A continuous collector current and 20A peak pulse current, with VCE(sat) < 110mV at 1A and RCE(sat) = 36mΩ at 5A, used in high-efficiency DC-DC converter output stages and motor drive H-bridge low-side switches.
For engineers reviewing the FZT869TC datasheet, FZT869TC pinout, FZT869TC application, or FZT869TC equivalent, key selection criteria include verified saturation voltage at ≥5A, hFE hold-up to 20A, thermal resistance (RθJA = 42°C/W on 52mm×52mm 2oz Cu), and AEC-Q101 readiness via automotive-grade FZT869Q variants.
Technical Context
This NPN bipolar junction transistor operates in linear and switching modes with BVCBO = 60V, BVCEO = 25V, and VEBO = 6V - enabling use in 24V industrial bus interfaces and 12V/24V automotive load switching where robust overvoltage margin is required. Its fT = 100MHz supports fast turn-on/turn-off (ton = 60ns, toff = 680ns) under 100mA base drive.
Thermal design relies on low RθJL = 8.8°C/W (junction-to-lead) and validated derating curves for 52mm×52mm 2oz Cu PCBs. The device sustains 3W total power dissipation at 25°C ambient, dropping linearly to zero at 125°C with 24mW/°C slope - critical for thermally constrained motor gate drivers and LED constant-current sinks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 25V - Maximum safe collector-emitter voltage in common-emitter configuration; defines usable rail voltage headroom in 24V systems. |
| IC (cont.) | 7A - Continuous collector current rating; enables direct drive of solenoids, fans, and small BLDC motor phases without external heat sinking. |
| VCE(sat) | <110mV @ 1A - Low saturation voltage minimizes conduction loss and self-heating in high-duty-cycle switching applications. |
| hFE | 40–450 - Gain range specified up to 20A; ensures stable base drive sizing across full load range without gain collapse. |
| RθJA | 42°C/W - Thermal resistance on 52mm×52mm 2oz Cu; allows accurate junction temperature prediction for reliability validation. |
| fT | 100MHz - Current gain-bandwidth product; supports clean square-wave switching up to ~10MHz with adequate base drive. |
| ESD HBM | 4kV - Human Body Model rating per JEDEC JESD22-A114; provides robustness against handling-induced electrostatic discharge. |
Pinout & Package
Package: SOT223 (Type DN), surface-mount, 4-pin (3 active + tab), with collector connected to exposed lead frame tab for thermal and electrical connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Emitter) | E | Current return path; electrically isolated from tab; requires PCB copper pour for low-inductance grounding. |
| Pin 2 (Base) | B | Control input; driven with 100–300mA pulsed current for full saturation at 5–7A collector loads. |
| Pin 3 (Collector) | C | Main current path; internally bonded to exposed metal tab; must be soldered to ≥25mm² thermal pad for RθJA compliance. |
| Tab (Collector) | C (common with Pin 3) | Primary thermal interface and high-current return; electrically identical to Pin 3; mandatory for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Low RCE(sat) | 36mΩ at 5A - reduces I²R losses by >40% vs. standard SOT223 transistors, improving efficiency in battery-powered motor drives. |
| High-current hFE hold-up | 200–300 @ 7A - maintains sufficient current gain for predictable base drive requirements even at full rated load. |
| JEDEC-qualified reliability | Qualified to AEC-Q101 standards - meets automotive stress test requirements including HTGB, HTRB, and temperature cycling. |
| Green RoHS-compliant construction | Halogen- and antimony-free molding compound (<900ppm Br/Cl, <1000ppm Sb) - satisfies EU ELV and OEM environmental mandates. |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Driving 24V brushed DC motors in HVAC actuators and seat positioners. IC Role / Device Role / Timing Role: Low-side switch in half-bridge configuration, commutated at ≤20kHz with PWM duty control. Use Value: 36mΩ RCE(sat) limits conduction loss to <1.3W at 7A, enabling compact heatsinkless design in space-constrained modules. |
Use Scenario: Controlling door lock solenoids and mirror fold/unfold actuators in 12V vehicle platforms. IC Role / Device Role / Timing Role: High-current load switch activated by microcontroller GPIO with flyback diode protection. Use Value: 20A ICM withstands inrush currents during solenoid pull-in; 4kV ESD HBM prevents field failure during assembly and service. |
| DC-DC Converter Output Stage | LED Constant-Current Driver |
Use Scenario: Synchronous rectifier replacement in non-isolated buck converters delivering 5–12V/5A outputs. IC Role / Device Role / Timing Role: NPN switch operating in linear mode for precise current regulation, biased with op-amp feedback loop. Use Value: Tight VCE(sat) tolerance (35–50mV typ.) enables ±2% current accuracy without trimming resistors. |
Use Scenario: High-brightness LED string current regulation in commercial signage and emergency lighting. IC Role / Device Role / Timing Role: Linear pass element controlled by analog dimming signal; dissipates up to 2.5W continuously. Use Value: RθJA = 42°C/W allows operation at 85°C ambient with <125°C junction temperature - eliminating need for forced air cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN high-current transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXTN2010ZTA | Higher VCEO = 30V, lower IC = 4.5A, RCE(sat) = 45mΩ @ 3A - less current capability but tighter VCE(sat) distribution. | Preferred in 24V telecom power supplies where voltage margin >30V is required but peak load <5A. | Select when higher breakdown voltage outweighs current demand; verify base drive compatibility due to different hFE profile. |
| MJD122G | TO-220 package, IC = 8A, VCE(sat) = 1.2V @ 4A - significantly higher saturation voltage and larger footprint. | Suitable for legacy designs requiring through-hole mounting and higher thermal mass, not SMT space constraints. | Choose only if board rework prohibits SMT adoption; avoid in new designs due to 10× higher conduction loss vs. FZT869TC. |
Compared with ZXTN2010ZTA and MJD122G, FZT869TC delivers optimal balance of current density (7A in SOT223), ultra-low saturation resistance (36mΩ), and automotive-qualified reliability - making it the preferred choice for next-generation compact, high-efficiency 12–24V power switches.
Availability
FZT869TC is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, and DC-DC converter output stages requiring stable component supply with guaranteed long-term sourcing.
Supply support for FZT869TC 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, specializing in high-reliability power management, signal integrity, and protection solutions for industrial and automotive markets.
FZT869TC belongs to Diodes' high-current bipolar transistor product line, engineered specifically for thermally demanding, high-efficiency switching applications in 12V–24V systems where low RCE(sat) and AEC-Q101 compliance are critical.
FAQ
What is the maximum allowable junction temperature for continuous operation?
The FZT869TC has an operating junction temperature range of –55°C to +150°C. For continuous DC operation on a 52mm×52mm 2oz Cu PCB, the maximum ambient temperature before derating begins is +25°C, with linear derating to zero power at +125°C (24mW/°C slope). Exceeding 150°C risks permanent parametric shift or bond wire failure.
Is FZT869TC pin-compatible with other SOT223 NPN transistors like MMBT4401?
No - FZT869TC uses a 4-pin SOT223 (Type DN) configuration with collector connected to the exposed tab, while MMBT4401 uses a 3-pin SOT223 (Type D) with no tab connection. Pin 1 (Emitter), Pin 2 (Base), and Pin 3 (Collector) align physically, but the tab must be electrically and thermally connected to the PCB for FZT869TC functionality and thermal performance.
Does FZT869TC require a base resistor for safe operation at 7A collector current?
Yes - with hFE = 200–300 at 7A, a base current of 23–35mA is required for full saturation. A 100Ω–220Ω series resistor between microcontroller GPIO and base (with appropriate voltage translation if needed) ensures stable turn-on and prevents excessive base-emitter dissipation during switching transitions.
Can FZT869TC be used in avalanche mode for inductive load snubbing?
No - the FZT869TC is not rated for repetitive avalanche operation. Its BVCER = 60V is measured with base-emitter shorted, but the datasheet does not specify single-pulse or repetitive avalanche energy ratings. For inductive load protection, external flyback diodes or TVS devices must be used per application circuit requirements.
FZT869TC 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:
- NPN
- Current - Collector (Ic) (Max):
- 7 A
- Voltage - Collector Emitter Breakdown (Max):
- 25 V
- Vce Saturation (Max) @ Ib, Ic:
- 350mV @ 150mA, 6.5A
- Current - Collector Cutoff (Max):
- 50nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 300 @ 1A, 1V
- Power - Max:
- 3 W
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
FZT869TC FAQ
1.How can I place an order for FZT869TC through Aetrix?
Please submit a Request for Quotation (RFQ) for FZT869TC 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 FZT869TC reliable?
The price and inventory of FZT869TC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FZT869TC is usually 5 days.
3.What payment methods are accepted for FZT869TC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FZT869TC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FZT869TC?
FZT869TC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FZT869TC 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 FZT869TC?
For technical support, including FZT869TC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FZT869TC requirements.
6.How does Aetrix verify that FZT869TC is sourced from the original manufacturer or authorized distributors?
All FZT869TC 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 FZT869TC meets industry standards.
7.What is the process for return or replacement of FZT869TC?
All FZT869TC units undergo pre-shipment inspection (PSI). If there is an issue with FZT869TC, 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 FZT869TC part is unused and in its original packaging.
Return procedure for FZT869TC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FZT869TC Tags
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