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onsemi FJP3307DTU
- Part No.:
- FJP3307DTU
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-220-3
- Datasheet:
-
FJP3307DTU.pdf
- Description:
- TRANS NPN 400V 8A TO-220-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,012
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Product details
Overview
FJP3307DTU from ON Semiconductor is a high-voltage, fast-switching NPN power transistor in TO-220 package, rated for 400 V VCEO, 8 A DC collector current, and 80 W power dissipation at TC = 25°C. It integrates a built-in collector-emitter diode and delivers 3 μs storage time and 150 ns fall time, making it suitable for electronic ballasts and switch-mode power supplies operating up to 100 kHz.
For engineers reviewing the FJP3307DTU datasheet, pinout, applications, or equivalent options, key selection criteria include its 400 V blocking capability, 8 A continuous current rating, integrated anti-parallel diode, fast switching performance (tF = 150 ns), and TO-220 thermal interface compatibility with standard heatsinks.
Technical Context
The FJP3307DTU employs a planar epitaxial base structure optimized for high-voltage breakdown and low saturation voltage. Its BVCBO of 700 V and BVCEO of 400 V support operation in off-line SMPS primary-side switching and resonant lamp ballast circuits where transient overvoltage immunity is critical.
With hFE ranging from 8–40 (min–max) at IC = 2 A and VCE = 5 V, and VCE(sat) = 1.0 V (IC = 2 A, IB = 0.4 A), the device balances drive efficiency and conduction loss. The integrated diode has VF = 2.5 V at IC = 3 A, enabling self-commutated flyback and half-bridge topologies without external diode placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 400 V - Supports direct connection to 277 VAC or 380 VDC bus without external snubbing in SMPS primary switches. |
| IC (DC) | 8 A - Enables 100–200 W power stage designs with margin for surge currents in lighting and adapter applications. |
| VCE(sat) | 1.0 V @ IC = 2 A, IB = 0.4 A - Limits conduction loss to ≤2 W at 2 A, reducing thermal load on TO-220 heatsink. |
| tF | 150 ns - Allows stable operation at switching frequencies up to 100 kHz with minimal turn-off energy loss. |
| Cob | 60 pF @ VCB = 10 V - Minimizes capacitive coupling and EMI generation during high-dV/dt transitions. |
| Integrated Diode | Forward voltage 2.5 V @ 3 A - Eliminates need for discrete freewheeling diode in single-ended flyback converters. |
Pinout & Package
Package: TO-220AB (JEDEC variation AB), through-hole, single-ended heatsink-mountable, with exposed collector tab electrically connected to pin 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Base) | Current-controlled input terminal | Receives 0.4–2 A DC base drive to saturate transistor; requires current-limiting resistor or driver IC with ≥4 A peak capability. |
| 2 (Collector) | Main high-side power output terminal | Electrically tied to metal tab; must be isolated from heatsink unless circuit ground reference permits direct mounting. |
| 3 (Emitter) | Power return and reference node | Serves as common emitter for NPN configuration; connects to ground or low-side switch node in half-bridge layouts. |
Key Features
| Feature | Design Value |
|---|---|
| High-voltage blocking | 700 V VCBO enables robust operation in 277 VAC mains-connected ballasts and industrial SMPS with line transients. |
| Fast switching speed | 150 ns fall time and 3 μs storage time reduce switching losses by >30% vs. general-purpose power transistors at 50–100 kHz. |
| Integrated anti-parallel diode | Eliminates discrete diode footprint and parasitic inductance in flyback transformer reset paths. |
| TO-220 thermal interface | 80 W PC at TC = 25°C supports 40–50 W continuous output with standard 1.5°C/W heatsink under natural convection. |
Applications
| Electronic Ballast Control | Off-Line SMPS Primary Switch |
|---|---|
Use Scenario: Driving resonant LC tank in 20–60 W fluorescent lamp ballasts with 25–65 kHz frequency. IC Role / Device Role / Timing Role: Main high-side switching element in half-bridge topology, commutated by gate driver with dead-time control. Use Value: Integrated diode provides reliable flyback path during zero-voltage switching transitions, improving efficiency by 2–3% over discrete solutions. |
Use Scenario: Primary-side switch in 30–120 W AC/DC adapters and open-frame power supplies. IC Role / Device Role / Timing Role: High-voltage NPN switch controlled by PWM controller via base driver; handles 380 VDC bus with 100 kHz switching. Use Value: 400 V VCEO rating allows direct use without series stacking or clamping, simplifying primary-side layout and BOM. |
| Induction Heating Half-Bridge | DC Motor Drive (Low-Frequency) |
Use Scenario: Low-frequency (20–50 kHz) half-bridge in 500–1500 W domestic induction cooktops. IC Role / Device Role / Timing Role: Upper-leg switch in asymmetrical half-bridge; conducts during resonant current peaks with forced commutation. Use Value: 8 A IC rating and 80 W power dissipation support sustained 1 kW operation with 25°C heatsink temperature rise. |
Use Scenario: Single-ended chopper in 24–48 V brushed DC motor drives for industrial actuators and HVAC dampers. IC Role / Device Role / Timing Role: Low-frequency (1–10 kHz) power switch modulating armature current; driven by microcontroller GPIO + base driver. Use Value: VCE(sat) ≤1.0 V at 2 A ensures <2 W conduction loss, enabling compact heatsink design in space-constrained enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MJD32C | Lower VCEO = 100 V, higher hFE = 20–120, TO-252 surface-mount package | Restricted to low-voltage DC-DC and automotive 12 V systems; unsuitable for off-line AC input stages | Select when board space is constrained and input voltage remains below 60 VDC. |
| BU508A | Higher VCEO = 1500 V but slower tF = 1.2 μs, no integrated diode, same TO-220 package | Better for high-voltage linear regulators and CRT deflection; lacks diode for flyback reset in SMPS | Choose only for ultra-high-voltage, low-frequency (<20 kHz) applications where diode integration is unnecessary. |
Compared with MJD32C and BU508A, the FJP3307DTU uniquely combines 400 V blocking, fast 150 ns fall time, and an integrated diode in TO-220 - making it the only option among the three validated for electronic ballast and universal-input SMPS primary-side switching.
Availability
FJP3307DTU is available at Aetrix Electronics and suitable for electronic ballasts, off-line switch-mode power supplies, and induction heating half-bridges requiring stable component supply and long-term industrial availability.
Supply support for FJP3307DTU 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 devices for automotive, industrial, cloud power, and IoT applications.
The FJP3307DTU belongs to ON Semiconductor's legacy Fairchild high-voltage bipolar transistor portfolio, designed specifically for cost-sensitive, high-reliability lighting and power conversion systems operating from universal AC input.
FAQ
What is the maximum continuous collector current rating for FJP3307DTU?
The FJP3307DTU has a maximum DC collector current rating of 8 A at case temperature TC = 25°C. Derating is required above this temperature per the power derating curve in the datasheet - for example, at TC = 100°C, the usable IC drops to approximately 4.5 A. This rating assumes proper heatsinking and adequate base drive to maintain saturation.
Does FJP3307DTU include an integrated diode, and what is its forward voltage?
Yes, the FJP3307DTU includes a monolithically integrated diode between collector and emitter. Its forward voltage is specified as 2.5 V at IC = 3 A and TJ = 25°C. This diode is not rated for reverse recovery in high-speed switching but serves reliably as a freewheeling path in flyback and resonant converter topologies.
What is the pin configuration of FJP3307DTU in the TO-220 package?
The FJP3307DTU uses a standard TO-220AB pinout: Pin 1 is Base, Pin 2 is Collector (electrically connected to the metal tab), and Pin 3 is Emitter. When mounted to a heatsink, electrical isolation of the tab is required unless the collector node is at system ground potential.
Can FJP3307DTU replace BU2508AX in electronic ballast designs?
No - the BU2508AX has VCEO = 1500 V and no integrated diode, while the FJP3307DTU offers VCEO = 400 V and built-in diode functionality. They serve different voltage classes and topologies. Substitution would require redesigning snubber networks and adding an external diode, compromising reliability and efficiency in ballast applications.
What is the typical storage time (tSTG) of FJP3307DTU under standard test conditions?
The FJP3307DTU has a typical storage time of 3 μs when tested at VCC = 125 V, IC = 5 A, IB1 = −IB2 = 1 A, and RL = 50 Ω. This value reflects the time required for minority carriers to clear the base region during turn-off and directly impacts minimum achievable switching frequency and switching loss in hard-switched topologies.
FJP3307DTU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 8 A
- Voltage - Collector Emitter Breakdown (Max):
- 400 V
- Vce Saturation (Max) @ Ib, Ic:
- 3V @ 2A, 8A
- Current - Collector Cutoff (Max):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 5 @ 5A, 5V
- Power - Max:
- 80 W
- Frequency - Transition:
- -
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
FJP3307DTU FAQ
1.How can I place an order for FJP3307DTU through Aetrix?
Please submit a Request for Quotation (RFQ) for FJP3307DTU 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 FJP3307DTU reliable?
The price and inventory of FJP3307DTU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FJP3307DTU is usually 5 days.
3.What payment methods are accepted for FJP3307DTU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FJP3307DTU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FJP3307DTU?
FJP3307DTU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FJP3307DTU 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 FJP3307DTU?
For technical support, including FJP3307DTU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FJP3307DTU requirements.
6.How does Aetrix verify that FJP3307DTU is sourced from the original manufacturer or authorized distributors?
All FJP3307DTU 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 FJP3307DTU meets industry standards.
7.What is the process for return or replacement of FJP3307DTU?
All FJP3307DTU units undergo pre-shipment inspection (PSI). If there is an issue with FJP3307DTU, 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 FJP3307DTU part is unused and in its original packaging.
Return procedure for FJP3307DTU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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