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onsemi FJPF5021YTU
- Part No.:
- FJPF5021YTU
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-220-3 Full Pack
- Datasheet:
-
FJPF5021YTU.pdf
- Description:
- TRANS NPN 500V 5A TO-220F-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,446
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Product details
Overview
FJPF5021YTU from onsemi is an NPN silicon power transistor designed for high-voltage switching applications, featuring 800 V collector-base breakdown voltage (BVCBO), 500 V collector-emitter sustaining voltage (VCEX(sus)), and 5 A DC collector current (IC) in TO-220 Fullpack package. It delivers fast switching with 0.1 µs typical fall time (tF) and wide forward/reverse bias safe operating area (SOA), commonly used in flyback converters and snubberless AC switchers.
For engineers reviewing the FJPF5021YTU datasheet, pinout, applications, or equivalent options, key selection criteria include high-voltage blocking capability (500–800 V), SOA robustness under inductive loads, saturation voltage ≤1 V at 3 A/0.6 A drive, and thermal performance in TO-220 Fullpack with 40 W dissipation at TC = 25°C.
Technical Context
This device operates as a single NPN bipolar junction transistor optimized for high-voltage, medium-current switching. Its design emphasizes ruggedness under inductive turn-off stress, supported by clamped VCEX(sus) = 500 V at IC = 2.5 A with complementary base drive (IB1 = −IB2 = 1 A) and L = 1 mH.
It exhibits hFE1 = 15–50 at IC = 0.6 A and hFE2 ≥8 at IC = 3 A, enabling stable gain across load range. Output capacitance Cob = 80 pF at VCB = 10 V and fT = 15 MHz support high-speed operation while maintaining EMI control in offline SMPS designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCBO | 800 V - Enables use in 400 VAC line-connected circuits with margin against transients |
| VCEO / VCEX(sus) | 500 V - Sustains full-rated voltage during inductive turn-off with clamped base drive |
| IC / ICP | 5 A DC / 10 A pulse - Supports continuous 250 W output stage in flyback or forward converters |
| VCE(sat) | ≤1 V @ IC = 3 A, IB = 0.6 A - Limits conduction loss to <3 W at rated current |
| tF | 0.1 µs typ - Reduces switching loss in 50–100 kHz SMPS topologies |
| Cob | 80 pF @ VCB = 10 V - Balances speed vs. EMI generation in high-dV/dt environments |
| PC (TC = 25°C) | 40 W - Requires heatsink for >10 W continuous dissipation in ambient air |
Pinout & Package
Supplied in TO-220 Fullpack (Case 221AT), a through-hole package with insulated tab, 3-lead configuration, and creepage/clearance suited for ≥500 V isolation requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Base) | Control input | Receives DC or pulsed current to drive transistor into saturation or cutoff; requires ≥0.6 A for full 3 A switching |
| 2 (Collector) | High-side power node | Connected to primary winding or high-voltage rail; handles up to 500 V sustained and 800 V transient |
| 3 (Emitter) | Current return path | Low-impedance output node tied to ground or source of downstream driver; carries full load current |
Key Features
| Feature | Design Value |
|---|---|
| High-voltage blocking | 800 V VCBO rating enables direct interface with 380–400 VDC bus without external snubbers |
| Wide Forward SOA | Supports 5 A at 100 V without second breakdown, critical for unclamped inductive loads |
| Clamped switching capability | VCEX(sus) = 500 V verified with active base clamping (IB1 = −IB2), eliminating need for external clamp diodes |
| Pb-free construction | Complies with RoHS Directive 2011/65/EU; no lead content in die attach, plating, or molding compound |
Applications
| AC-DC Flyback Converter | Snubberless AC Switcher |
|---|---|
Use Scenario: Primary-side switch in universal-input (85–265 VAC) offline flyback power supplies delivering 20–60 W. IC Role / Device Role / Timing Role: Main power switch controlling energy transfer via transformer primary; driven by PWM controller with base current limiting. Use Value: 500 V VCEX(sus) allows elimination of RCD snubber, reducing component count and improving efficiency by ~2% at full load. | Use Scenario: Solid-state relay replacement in 120/230 VAC lighting and motor control where zero-crossing is not required. IC Role / Device Role / Timing Role: High-voltage bilateral switch operated in linear or saturated mode; triggered by optocoupler-isolated gate driver. Use Value: Wide SOA and 800 V VCBO enable reliable turn-on/turn-off at peak AC line voltages without secondary breakdown risk. |
| Inductive Load Driver | DC-DC Boost Pre-regulator |
Use Scenario: Driving solenoids, contactors, or relays from 24–48 VDC industrial control buses. IC Role / Device Role / Timing Role: Single-ended switch sinking load current to ground; protected by external freewheeling diode. Use Value: 10 A pulse rating supports 3× inrush current for 100 ms, ensuring reliable actuation of high-inductance coils. | Use Scenario: Front-end boost converter in telecom power systems stepping 48 VDC to 72 VDC for legacy equipment compatibility. IC Role / Device Role / Timing Role: Main switching transistor in continuous conduction mode (CCM) boost topology with fixed-frequency PWM. Use Value: 0.1 µs tF and 15 MHz fT allow stable operation at 200 kHz with minimal dead-time loss and low gate drive power. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage NPN switching transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ST13007D | Lower VCBO (600 V), higher VCE(sat) (1.5 V), same TO-220FP package | Limited to 277 VAC systems; requires larger heatsink above 2 A | Acceptable for cost-sensitive 200–300 VDC applications where 800 V margin is unnecessary |
| MJD127G | Higher hFE (20–120), lower VCEO (100 V), TO-220AB package with non-insulated tab | Not suitable for >120 VDC operation; requires isolation hardware for HV mounting | Only viable in low-voltage, high-gain linear amplifier roles-not a functional substitute for FJPF5021YTU's HV switching role |
Compared with ST13007D and MJD127G, the FJPF5021YTU uniquely combines 800 V blocking, 500 V clamped sustain, and TO-220 Fullpack insulation-making it irreplaceable in 400 VDC+ flyback and snubberless AC switcher designs requiring both voltage margin and SOA integrity.
Availability
FJPF5021YTU is available at Aetrix Electronics and suitable for AC-DC flyback converters, snubberless AC switchers, and industrial inductive load drivers requiring stable component supply and long-term manufacturability.
Supply support for FJPF5021YTU 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient electronics, with leadership in power management, analog, sensors, and logic devices.
The FJPF5021YTU belongs to onsemi's high-voltage bipolar transistor product line, engineered specifically for rugged offline power conversion and industrial control applications demanding reliability at elevated voltage and temperature.
FAQ
What is the maximum collector-emitter voltage rating for FJPF5021YTU?
The FJPF5021YTU has a collector-emitter sustaining voltage VCEX(sus) of 500 V under clamped switching conditions (IC = 2.5 A, IB1 = −IB2 = 1 A, L = 1 mH). Its BVCEO is also rated at 500 V with IB = 0. This makes the FJPF5021YTU suitable for 400 VDC bus applications with safety margin. The device must not be operated beyond this limit without external clamping or derating.
Does FJPF5021YTU have a Pb-free construction?
Yes, the FJPF5021YTU is explicitly marked as a Pb-free device per the onsemi datasheet. It complies with RoHS Directive 2011/65/EU, with no lead content in the die attach, leadframe plating, or epoxy molding compound. This ensures environmental compliance for export and end-product certification.
What package type does FJPF5021YTU use and is the tab insulated?
The FJPF5021YTU uses the TO-220 Fullpack (Case 221AT) package, which features a fully insulated metal tab. This allows direct mounting to a heatsink without electrical isolation hardware, supporting safe operation in high-voltage circuits where collector is at potential up to 500 V.
What is the typical fall time (tF) of FJPF5021YTU and how is it measured?
The FJPF5021YTU has a typical fall time (tF) of 0.1 µs, measured under standard switching test conditions: VCC = 200 V, IC = 4 A, IB1 = −IB2 = 2.5 A, RL = 50 Ω. This value reflects rapid carrier recombination enabled by its optimized epitaxial structure and is validated across production lots per the datasheet.
Can FJPF5021YTU replace FJPF5020YTU in existing designs?
No, the FJPF5021YTU is not a drop-in replacement for FJPF5020YTU. While both share the TO-220 Fullpack package, the FJPF5020YTU has lower voltage ratings (VCBO = 600 V, VCEO = 400 V) and different hFE grading. Substituting FJPF5021YTU may over-specify but risks layout incompatibility due to differing internal geometry and thermal impedance-always verify SOA and drive requirements before interchange.
FJPF5021YTU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack
- Packaging:
- Tube
- Product Status:
- Obsolete
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 5 A
- Voltage - Collector Emitter Breakdown (Max):
- 500 V
- Vce Saturation (Max) @ Ib, Ic:
- 1V @ 600mA, 3A
- Current - Collector Cutoff (Max):
- 10µA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 30 @ 600mA, 5V
- Power - Max:
- 40 W
- Frequency - Transition:
- 15MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220F-3
FJPF5021YTU FAQ
1.How can I place an order for FJPF5021YTU through Aetrix?
Please submit a Request for Quotation (RFQ) for FJPF5021YTU 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 FJPF5021YTU reliable?
The price and inventory of FJPF5021YTU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FJPF5021YTU is usually 5 days.
3.What payment methods are accepted for FJPF5021YTU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FJPF5021YTU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FJPF5021YTU?
FJPF5021YTU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FJPF5021YTU 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 FJPF5021YTU?
For technical support, including FJPF5021YTU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FJPF5021YTU requirements.
6.How does Aetrix verify that FJPF5021YTU is sourced from the original manufacturer or authorized distributors?
All FJPF5021YTU 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 FJPF5021YTU meets industry standards.
7.What is the process for return or replacement of FJPF5021YTU?
All FJPF5021YTU units undergo pre-shipment inspection (PSI). If there is an issue with FJPF5021YTU, 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 FJPF5021YTU part is unused and in its original packaging.
Return procedure for FJPF5021YTU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FJPF5021YTU Tags
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