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onsemi KSE13009FTU
- Part No.:
- KSE13009FTU
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-220-3 Full Pack
- Datasheet:
-
KSE13009FTU.pdf
- Description:
- POWER BIPOLAR TRANSISTOR, 12A, 4
- Quantity:
- Payment:
- Shipping:
Inventory:82,328
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Product details
Overview
KSE13009FTU from Fairchild Semiconductor is an NPN silicon power transistor in TO-220F package, rated for 700 V VCBO, 400 V VCEO, 12 A DC collector current, and 100 W collector dissipation at TC=25°C; used in high-voltage switch-mode power supplies and motor control circuits.
For engineers reviewing the KSE13009FTU datasheet, pinout, applications, or equivalent options, key selection criteria include safe operating area at high voltage/current, saturation voltage under 3 V at 12 A, switching speed (tON = 1.1 µs), and thermal performance in TO-220F mounting.
Technical Context
This device operates as a high-voltage, high-current NPN bipolar junction transistor optimized for hard-switching applications. Its design supports sustained collector-emitter voltage up to 400 V with 12 A continuous current, and features low Cob (180 pF) and fT = 4 MHz for stable gain-bandwidth behavior in switching regulators.
The KSE13009FTU uses a planar epitaxial structure with rugged SOA characteristics, enabling reliable operation in inductive load switching. It exhibits VCE(sat) ≤ 3 V at IC = 12 A / IB = 3 A and tF = 0.7 µs, supporting efficient turn-off in motor drive half-bridges and SMPS primary-side switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCBO | 700 V - maximum reverse bias voltage between collector and base without breakdown |
| VCEO | 400 V - maximum collector-emitter voltage under open-base condition, defining primary HV rating |
| IC (DC) | 12 A - continuous collector current capability at TC = 25°C, usable up to TJ = 150°C with derating |
| VCE(sat) | ≤3 V at IC = 12 A, IB = 3 A - low saturation voltage enables reduced conduction loss in power stages |
| fT | 4 MHz - current gain bandwidth product indicating usable frequency limit for linear amplification |
| tON / tF | 1.1 µs / 0.7 µs - fast switching transitions minimize switching losses in PWM-driven topologies |
| Cob | 180 pF at VCB = 10 V - output capacitance impacts snubber design and EMI in flyback/forward converters |
Pinout & Package
Package: TO-220F (full-pack, insulated tab, 3-lead through-hole). Mounting requires mechanical isolation from heatsink unless using insulating washer; tab is electrically connected to collector.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Base) | Control input | Receives base current to drive transistor into saturation or cutoff; requires ≥3 A peak for full 12 A switching |
| 2 (Collector) | High-side power node | Connected to high-voltage rail (up to 400 V); tab is collector, requiring insulation in most PCB layouts |
| 3 (Emitter) | Power return path | Serves as common emitter reference; carries full load current and must be routed with low-inductance layout |
Key Features
| Feature | Design Value |
|---|---|
| High-voltage blocking | Rated for 700 V collector-base and 400 V collector-emitter, enabling use in 380 V DC bus applications |
| High-current capability | 12 A DC and 24 A pulse rating support motor winding drivers and SMPS primary switches |
| Fast switching | 1.1 µs turn-on and 0.7 µs fall time reduce transition losses in 20–100 kHz switching converters |
| Rugged SOA | Safe Operating Area curve validated up to 100 µs pulse width, supporting inductive kick tolerance |
Applications
| Switch-Mode Power Supply | Motor Drive Half-Bridge |
|---|---|
Use Scenario: Primary-side switching in offline 100–500 W flyback or forward converters with 380 V DC link. IC Role / Device Role / Timing Role: High-voltage NPN switch controlling energy transfer via transformer primary winding. Use Value: 400 V VCEO and 12 A IC rating enable direct replacement of older 2SC series transistors without snubber redesign. | Use Scenario: Upper-leg switching in 24–48 V brushed DC motor H-bridge driving industrial actuators. IC Role / Device Role / Timing Role: High-side NPN switch with base drive circuit providing bidirectional current control. Use Value: Low VCE(sat) ≤ 3 V at 12 A reduces conduction loss by >1.5 W versus comparable 2N3055 variants. |
| Induction Heater Driver | DC-DC Boost Converter |
Use Scenario: Resonant tank switching in medium-frequency (20–50 kHz) induction heating systems. IC Role / Device Role / Timing Role: Hard-switched NPN transistor handling repetitive 400 V, 10 A pulses with minimal tail current. Use Value: 180 pF Cob and 4 MHz fT support stable gate drive impedance matching and predictable ringing suppression. | Use Scenario: High-power boost stage in solar microinverters stepping up 60–100 V PV input to 400 V DC bus. IC Role / Device Role / Timing Role: Main switching transistor in non-isolated boost topology operating at 50 kHz. Use Value: 100 W PC rating and 150 °C TJ allow sustained operation at 85 °C ambient with standard heatsinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN high-voltage switching transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics BU508AF | Same TO-220F package; VCBO = 1000 V, VCEO = 700 V, IC = 10 A, PC = 125 W | Higher voltage rating but lower current; slower tF = 1.2 µs | Preferred where >600 V transient immunity is required, but not optimal for 12 A continuous loads |
| ON Semiconductor MJE13009G | TO-220AB package (non-insulated tab); VCBO = 700 V, VCEO = 400 V, IC = 12 A, PC = 100 W | Identical electrical specs but requires insulating hardware for heatsink mounting | Drop-in substitute if mechanical isolation is handled externally; same pinout and thermal profile |
Compared with BU508AF and MJE13009G, the KSE13009FTU offers insulated-tab convenience in TO-220F while matching MJE13009G's electrical performance and exceeding BU508AF's current capability-making it optimal for space-constrained, high-reliability SMPS designs needing no added isolation hardware.
Availability
KSE13009FTU is available at Aetrix Electronics and suitable for switch-mode power supplies, motor control systems, and induction heating equipment requiring stable component supply across long production cycles.
Supply support for KSE13009FTU 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
Fairchild Semiconductor was a U.S.-based semiconductor company specializing in power discrete devices, analog ICs, and interface solutions before its acquisition by ON Semiconductor in 2016.
The KSE13009FTU belongs to Fairchild's high-voltage NPN transistor family designed specifically for robust, cost-effective switching in offline power conversion and industrial motor control.
FAQ
What is the maximum collector-emitter voltage rating for the KSE13009FTU?
The KSE13009FTU has a maximum collector-emitter sustaining voltage VCEO(sus) of 400 V at IC = 10 mA and IB = 0. This rating is confirmed in the Absolute Maximum Ratings table and applies under open-base conditions, making it suitable for 380 V DC bus applications with appropriate safety margin.
Is the KSE13009FTU pin-compatible with the MJE13009G?
Yes, the KSE13009FTU is pin-compatible with the MJE13009G: both use TO-220AB/TO-220F outline with Base–Collector–Emitter pinout (1–2–3). However, KSE13009FTU features an insulated tab (TO-220F), whereas MJE13009G has a conductive tab requiring external insulation.
What is the typical saturation voltage of the KSE13009FTU at full load?
The KSE13009FTU exhibits VCE(sat) ≤ 3 V at IC = 12 A and IB = 3 A, per the Electrical Characteristics table. This value is measured under pulsed conditions (PW ≤ 300 µs) and reflects worst-case conduction loss in hard-switched power stages.
Does the KSE13009FTU require a heatsink in normal operation?
Yes, the KSE13009FTU requires a heatsink when dissipating more than ~10 W continuously. With 100 W maximum collector dissipation at TC = 25°C and thermal resistance θJC ≈ 1.5°C/W (inferred from TO-220F construction), junction temperature rises rapidly without active thermal management.
Can the KSE13009FTU be used in avalanche mode?
No, the KSE13009FTU is not rated for repetitive avalanche operation. Its Safe Operating Area curve assumes forward-biased operation only; the datasheet does not specify avalanche energy rating (EAS) or ruggedness testing, and operation beyond VCEO risks secondary breakdown.
KSE13009FTU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- -
- Voltage - Collector Emitter Breakdown (Max):
- -
- Vce Saturation (Max) @ Ib, Ic:
- 3V @ 3A, 12A
- Current - Collector Cutoff (Max):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 8 @ 5A, 5V
- Power - Max:
- -
- Frequency - Transition:
- 4MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220F-3
KSE13009FTU FAQ
1.How can I place an order for KSE13009FTU through Aetrix?
Please submit a Request for Quotation (RFQ) for KSE13009FTU 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 KSE13009FTU reliable?
The price and inventory of KSE13009FTU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KSE13009FTU is usually 5 days.
3.What payment methods are accepted for KSE13009FTU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KSE13009FTU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KSE13009FTU?
KSE13009FTU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KSE13009FTU 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 KSE13009FTU?
For technical support, including KSE13009FTU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KSE13009FTU requirements.
6.How does Aetrix verify that KSE13009FTU is sourced from the original manufacturer or authorized distributors?
All KSE13009FTU 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 KSE13009FTU meets industry standards.
7.What is the process for return or replacement of KSE13009FTU?
All KSE13009FTU units undergo pre-shipment inspection (PSI). If there is an issue with KSE13009FTU, 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 KSE13009FTU part is unused and in its original packaging.
Return procedure for KSE13009FTU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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