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onsemi BDW93CFTU
- Part No.:
- BDW93CFTU
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-220-3
- Datasheet:
-
BDW93CFTU.pdf
- Description:
- TRANS NPN DARL 100V 12A TO-220-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,658
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Product details
Overview
BDW93CFTU from ON Semiconductor is an NPN epitaxial silicon Darlington transistor in TO-220 package, rated for 100 V VCEO, 12 A DC collector current, and 80 W power dissipation at TC = 25°C. It delivers hFE ≥ 1000 at IC = 3 A and features integrated parallel diode with VF ≤ 1.8 V at IF = 10 A, used in high-current switching applications such as hammer drivers and audio amplifiers.
For engineers reviewing the BDW93CFTU datasheet, pinout, applications, or equivalent options, key selection criteria include VCEO = 100 V, IC = 12 A, RθJC = 1.5 °C/W, integrated antiparallel diode, and TO-220 mechanical compatibility with heatsink mounting.
Technical Context
The BDW93CFTU is a monolithic NPN Darlington pair with built-in base-emitter shunt resistor and integrated antiparallel diode, enabling robust turn-off and reverse recovery handling in inductive load switching. Its high hFE (1000–20000) reduces required base drive current, while VCE(sat) ≤ 3 V at IC = 10 A ensures low conduction loss in power stages.
Designed for linear and switching operation up to 150°C junction temperature, it supports pulse currents up to 15 A and exhibits safe operating area (SOA) compliance across DC, 100 µs, 1 ms, and 5 ms conditions. Thermal resistance of 1.5 °C/W enables efficient heat transfer to external heatsinks via the TO-220 metal tab.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 100 V - Maximum sustainable collector-emitter voltage under open-base condition; defines upper rail limit in switching circuits. |
| IC (DC) | 12 A - Continuous collector current capability at TC = 25°C; determines steady-state load handling without derating. |
| PC | 80 W - Maximum power dissipation at case temperature 25°C; sets thermal design baseline for heatsink sizing. |
| hFE | 1000 min @ IC = 3 A - Ensures low base drive requirement (≤3 mA typical for 3 A output), reducing driver stage complexity. |
| VCE(sat) | 3 V max @ IC = 10 A, IB = 100 mA - Limits conduction loss to ≤30 W at full load, critical for efficiency in Class AB amplifiers. |
| RθJC | 1.5 °C/W - Enables direct thermal path from die to heatsink; allows 70°C temperature rise per 47 W dissipated. |
| VF (diode) | 1.8 V max @ IF = 10 A - Specifies forward drop of integrated antiparallel diode, essential for flyback energy recirculation in solenoid/relay drivers. |
Pinout & Package
BDW93CFTU uses the standard TO-220 package with isolated metal tab (pin 2), featuring three terminals: Base (pin 1), Collector (pin 2, electrically connected to tab), and Emitter (pin 3). The package provides mechanical stability, thermal conductivity, and through-hole mounting compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Base) | Control input terminal | Receives low-current drive signal; internal base-emitter shunt resistor aids turn-off speed and prevents spurious turn-on. |
| 2 (Collector) | Main current path input / heatsink interface | Electrically tied to metal tab; must be insulated from chassis unless circuit ground reference permits direct mounting. |
| 3 (Emitter) | Current return path / common reference | Serves as low-impedance emitter node; connects to load return or ground; carries full load current with minimal voltage offset. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated antiparallel diode | Enables self-contained flyback path for inductive loads-eliminates need for external freewheeling diode in hammer/solenoid drivers. |
| High DC current gain (hFE) | Min 1000 at 3 A ensures <3 mA base drive for full-load switching, simplifying driver IC or microcontroller GPIO interfacing. |
| Low thermal resistance | RθJC = 1.5 °C/W supports >47 W continuous dissipation with 70°C case-to-ambient rise-critical for compact industrial amplifier designs. |
| Complementary pairing | Direct complement to BDW94C; enables matched push-pull output stages in audio amplifiers without gain or SOA mismatch. |
| Robust SOA rating | Validated DC, 100 µs, 1 ms, and 5 ms safe operating area curves ensure reliability under transient overloads in motor control and relay actuation. |
Applications
| Hammer Drivers | Audio Power Amplifiers |
|---|---|
Use Scenario: Driving electromagnetic solenoids in industrial nail guns or pneumatic valve actuators requiring high peak current and fast turn-off. IC Role / Device Role / Timing Role: Main switching element controlling coil energization/de-energization; integrated diode handles back-EMF during turn-off. Use Value: Eliminates external flyback diode, reduces BOM count, and maintains VCE(sat) ≤ 3 V at 10 A to minimize power loss during repetitive 100 ms pulses. | Use Scenario: Output stage in Class AB audio amplifiers delivering ≥50 W into 4 Ω loads with low distortion and thermal stability. IC Role / Device Role / Timing Role: High-current output transistor biased in linear region; complements BDW94C in push-pull configuration. Use Value: hFE ≥ 1000 ensures stable bias current with minimal drift over temperature, supporting THD <0.5% at full output. |
| Motor Control (DC Brushed) | Industrial Relay Drivers |
Use Scenario: H-bridge half-bridge leg in 24–48 V DC motor controllers for conveyor systems or automated machinery. IC Role / Device Role / Timing Role: High-side or low-side switch managing bidirectional current flow; SOA validated for 5 ms transients. Use Value: 100 V VCEO headroom accommodates 48 V bus + 100% inductive kick, preventing avalanche failure during abrupt current interruption. | Use Scenario: Direct drive of 12–24 V industrial relays with coil inductance >100 mH and hold current >100 mA. IC Role / Device Role / Timing Role: Saturated switch replacing mechanical contactor; integrated diode clamps coil voltage during deactivation. Use Value: VF ≤ 1.8 V at 10 A limits diode power loss to <18 W during relay release, avoiding thermal runaway in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN Darlington transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BDW93CTU | No "F" suffix; same electrical specs but lacks RoHS-compliant finish per ON Semiconductor documentation. | Identical performance in non-RoHS-restricted environments; not suitable for EU/China export without compliance verification. | Select BDW93CFTU when lead-free assembly and REACH/RoHS compliance are mandatory. |
| TIP142 | Lower VCEO = 100 V (same), but hFE = 1000 min only at IC = 5 A; no integrated diode; RθJC = 2.5 °C/W. | Requires external flyback diode and larger heatsink; less suitable for space-constrained hammer drivers. | Choose TIP142 only if cost sensitivity outweighs integration and thermal advantages of BDW93CFTU. |
Compared with BDW93CTU and TIP142, BDW93CFTU offers guaranteed RoHS compliance, integrated diode functionality, and superior thermal resistance-making it the preferred choice for new industrial designs requiring regulatory alignment and board-level integration.
Availability
BDW93CFTU is available at Aetrix Electronics and suitable for hammer drivers, audio amplifiers, and industrial relay drivers requiring stable component supply, long-lifecycle support, and RoHS-compliant manufacturing.
Supply support for BDW93CFTU 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
ON Semiconductor is a global semiconductor manufacturer specializing in power management, analog, sensor, and logic solutions for automotive, industrial, cloud, and IoT applications.
BDW93CFTU belongs to ON Semiconductor's legacy power bipolar transistor portfolio, originally developed by Fairchild Semiconductor for high-current linear and switching applications demanding ruggedness, thermal efficiency, and integrated protection.
FAQ
What is the maximum continuous collector current rating for BDW93CFTU?
The BDW93CFTU is rated for 12 A DC collector current at case temperature TC = 25°C. Derating is required above 25°C per the power derating curve: 0.53 W/°C reduction beyond 25°C, reaching zero at TC = 175°C. At TC = 80°C, the usable IC drops to approximately 7.2 A. This rating assumes proper heatsinking and verified thermal interface conditions.
Does BDW93CFTU include an integrated diode, and what is its forward voltage?
Yes, BDW93CFTU integrates an antiparallel diode across its collector and emitter. Its forward voltage is specified as VF ≤ 1.8 V at IF = 10 A and ≤ 1.3 V at IF = 5 A. This diode enables self-contained flyback current recirculation in inductive load applications, eliminating the need for an external freewheeling diode in designs like solenoid drivers and relay interfaces.
What is the pin configuration and package type of BDW93CFTU?
BDW93CFTU uses the TO-220 package with standard pinout: Pin 1 = Base, Pin 2 = Collector (connected to metal tab), Pin 3 = Emitter. The metal tab is electrically active and must be insulated from the heatsink unless the collector node is referenced to chassis ground. Dimensions comply with JEDEC TO-220 outline, including 2.54 mm lead pitch and 15.90 mm body length.
How does BDW93CFTU compare to BDW93CTU?
The BDW93CFTU and BDW93CTU share identical electrical specifications and TO-220 packaging, but BDW93CFTU includes RoHS-compliant, lead-free finish and green molding compound per ON Semiconductor's post-Fairchild harmonization. BDW93CTU lacks formal RoHS certification and may contain lead in terminations or packaging-making BDW93CFTU the required choice for compliant industrial and export-oriented designs.
Is BDW93CFTU suitable for audio amplifier output stages?
Yes, BDW93CFTU is explicitly recommended for audio amplifier applications in its datasheet. Its high hFE (≥1000 at 3 A), low VCE(sat) (≤3 V at 10 A), and validated SOA up to DC support stable Class AB operation. When paired with complementary BDW94C, it forms a matched push-pull output stage capable of delivering >50 W into 4 Ω loads with low thermal drift and distortion.
BDW93CFTU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- Transistor Type:
- NPN - Darlington
- Current - Collector (Ic) (Max):
- 12 A
- Voltage - Collector Emitter Breakdown (Max):
- 100 V
- Vce Saturation (Max) @ Ib, Ic:
- 3V @ 100mA, 10A
- Current - Collector Cutoff (Max):
- 1mA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 750 @ 5A, 3V
- Power - Max:
- 80 W
- Frequency - Transition:
- -
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
BDW93CFTU FAQ
1.How can I place an order for BDW93CFTU through Aetrix?
Please submit a Request for Quotation (RFQ) for BDW93CFTU 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 BDW93CFTU reliable?
The price and inventory of BDW93CFTU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BDW93CFTU is usually 5 days.
3.What payment methods are accepted for BDW93CFTU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BDW93CFTU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BDW93CFTU?
BDW93CFTU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BDW93CFTU 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 BDW93CFTU?
For technical support, including BDW93CFTU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BDW93CFTU requirements.
6.How does Aetrix verify that BDW93CFTU is sourced from the original manufacturer or authorized distributors?
All BDW93CFTU 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 BDW93CFTU meets industry standards.
7.What is the process for return or replacement of BDW93CFTU?
All BDW93CFTU units undergo pre-shipment inspection (PSI). If there is an issue with BDW93CFTU, 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 BDW93CFTU part is unused and in its original packaging.
Return procedure for BDW93CFTU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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