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onsemi 2SC5706-H
- Part No.:
- 2SC5706-H
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-251-3 Short Leads, IPAK, TO-251AA
- Datasheet:
-
2SC5706-H.pdf
- Description:
- TRANS NPN 50V 5A TP
- Quantity:
- Payment:
- Shipping:
Inventory:8,212
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Product details
Overview
2SC5706-H from onsemi is an NPN bipolar power transistor in TP (TO-251) package, rated for 50 V VCEO, 5 A IC, and 15 W PC at Tc=25°C, with low VCE(sat) of 90–135 mV at IC=1 A/IB=50 mA, optimized for high-current switching in DC/DC converters and motor drivers.
For engineers reviewing the 2SC5706-H datasheet, pinout, applications, or equivalent options, key selection criteria include its Pb-free & halogen-free compliance, TP package thermal performance, VCE(sat) vs. IC curve at elevated temperature, and fT = 400 MHz for high-speed switching validation.
Technical Context
This NPN transistor uses FBET and MBIT processes to achieve low saturation voltage and high-speed switching. Its 15 W case-power dissipation and 150°C maximum junction temperature support continuous operation in thermally constrained industrial drive circuits.
The device exhibits hFE = 200–560 at VCE=2 V, IC=500 mA, and fT = 400 MHz under VCE=10 V, IC=500 mA conditions - enabling stable current gain across medium-frequency switching applications up to several hundred MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown under open-base condition; defines safe operating voltage headroom in 24–48 V motor driver rails. |
| IC | 5 A continuous - Rated collector current at Tc=25°C; supports sustained load currents in relay and lamp drivers without forced cooling. |
| VCE(sat)1 | 90–135 mV at IC=1 A, IB |
| fT | 400 MHz - Gain-bandwidth product confirms suitability for fast-switching topologies like synchronous buck converters operating ≤1 MHz. |
| PC (Tc=25°C) | 15 W - Case power dissipation rating enables direct mounting to heatsinks in compact industrial power modules. |
| hFE | 200–560 at VCE=2 V, IC=500 mA - Wide DC current gain range ensures robust base drive design margin across production lots. |
| Cob | 15 pF at VCB=10 V, f=1 MHz - Low output capacitance reduces switching energy loss and improves turn-off speed in hard-switched circuits. |
Pinout & Package
2SC5706-H is housed in a TP (TO-251) single-ended lead package with gull-wing surface-mount leads, JEITA/JEDEC registered as SC-64, featuring a metal tab for thermal conduction and mechanical anchoring.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control terminal requiring ≥50 mA DC base drive for full saturation at 1 A collector current; low VBE(sat) of –0.89 to –1.2 V simplifies driver stage design. |
| 2 | Collector | Main current-carrying terminal connected to load side; electrically tied to metal tab for enhanced thermal path and EMI shielding. |
| 3 | Emitter | Reference terminal for base drive and current sensing; common connection point for emitter resistors in current-limiting configurations. |
| 4 | Collector | Second collector terminal - redundant connection to same internal die region; used for parallel current paths or improved thermal spreading. |
Key Features
| Feature | Design Value |
|---|---|
| Low VCE(sat) | 90–135 mV at IC=1 A enables <135 mW conduction loss per transistor, reducing thermal load in multi-device arrays. |
| High-speed switching | ton = 35 ns, tf = 20 ns, tstg = 300 ns - Enables efficient operation in PWM frequencies up to 1 MHz with minimal dead-time overhead. |
| High allowable power dissipation | 15 W at Tc=25°C - Supports >3× higher power density than standard TO-92 transistors in space-constrained PCB layouts. |
| Pb-free & halogen-free | Complies with RoHS Directive 2011/65/EU and JEDEC JS709C - eliminates hazardous substances without compromising thermal or electrical performance. |
| Large current capacity | IC=5 A continuous, ICP=7.5 A pulse - accommodates inrush currents in solenoid and DC motor startup without derating. |
Applications
| DC/DC Converter Switch | Lamp Driver |
|---|---|
Use Scenario: High-efficiency 24 V input to 5 V/3.3 V buck converter in industrial PLC I/O modules. IC Role / Device Role / Timing Role: Main NPN switch in non-synchronous topology, operating at 500 kHz with 60% duty cycle. Use Value: Low VCE(sat) and 400 MHz fT reduce total switching + conduction losses below 0.8 W at 3 A output, improving thermal margin by 12°C. |
Use Scenario: 12 V automotive LED headlamp array control with PWM dimming. IC Role / Device Role / Timing Role: High-side current sink for 4 A steady-state LED string, driven by microcontroller GPIO. Use Value: 5 A IC rating and 150°C Tj allow operation in sealed enclosures up to 85°C ambient without derating. |
| Motor Driver Stage | Relay Driver |
Use Scenario: H-bridge half-bridge leg for 24 V brushed DC motor in HVAC damper actuator. IC Role / Device Role / Timing Role: Low-side switching element with flyback diode protection, switching at 20 kHz. Use Value: 7.5 A ICP handles motor stall current; fast tf/tstg minimizes shoot-through risk during direction reversal. |
Use Scenario: Solid-state replacement for 24 V/2 A electromagnetic relay in building automation panel. IC Role / Device Role / Timing Role: Direct-drive switch for relay coil with snubberless operation due to low VCE(sat). Use Value: 90 mV VCE(sat) limits coil drive loss to 180 mW, eliminating need for external heat sinking in dense backplane layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 2SC5706-E | Identical electrical specs and TP package, but Pb-free only (not halogen-free); same 500 pcs./bag packing. | No difference in circuit function or thermal behavior; suitable where halogen-free compliance is not mandated. | Select 2SC5706-E when RoHS-compliant (Pb-free) suffices and halogen-free certification is unnecessary. |
| MJD127G | TO-252 (TP-FA) package, 80 V VCEO, 2 A IC, higher VCE(sat) (1.5 V min), lower fT (100 MHz). | Lower current and slower switching limit use to <2 A loads and <200 kHz PWM; requires layout change due to different footprint. | Choose MJD127G only if higher voltage rating is critical and reduced current/speed are acceptable trade-offs. |
Compared with 2SC5706-E, the 2SC5706-H adds halogen-free compliance without electrical or thermal penalty; versus MJD127G, it delivers 2.5× higher current, 4× higher fT, and 15× lower VCE(sat), justifying its use in high-density, high-efficiency power stages.
Availability
2SC5706-H is available at Aetrix Electronics and suitable for DC/DC converters, lamp drivers, motor drivers, and relay drivers requiring stable component supply, long-term industrial lifecycle support, and halogen-free compliance.
Supply support for 2SC5706-H 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 specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and IoT applications.
The 2SC5706-H belongs to onsemi's general-purpose bipolar power transistor family designed for high-current, medium-voltage switching in industrial controls, power supplies, and electromechanical interface circuits.
FAQ
What is the package type and lead finish of 2SC5706-H?
The 2SC5706-H uses the TP (TO-251) surface-mount package with gull-wing leads and is certified Pb-free and halogen-free per JEDEC JS709C and RoHS Directive 2011/65/EU. Its outline matches JEITA SC-64, and the metal tab provides thermal and mechanical anchoring. This finish ensures compatibility with lead-free reflow profiles while maintaining solder joint reliability in industrial environments.
Does 2SC5706-H support pulsed operation beyond its 5 A continuous rating?
Yes, the 2SC5706-H supports 7.5 A peak collector current (ICP) in pulse mode with 100 ms duration and 10% duty cycle, as specified in its Absolute Maximum Ratings. This capability allows it to handle motor startup surges and relay coil inrush without saturation collapse, provided case temperature remains within 25°C limits during pulse intervals.
How does the VCE(sat) of 2SC5706-H vary with temperature and current?
The 2SC5706-H exhibits a positive temperature coefficient for VCE(sat): at IC=1 A/IB=50 mA, VCE(sat) rises from 90 mV at 25°C to ~160 mV at 75°C (per IT02979 graph). At IC=2 A/IB=100 mA, it increases from 160 mV to ~240 mV over the same range - critical for thermal runaway analysis in paralleled configurations.
Can 2SC5706-H be used in linear amplifier applications?
No, the 2SC5706-H is optimized for switching operation, not linear amplification. Its datasheet specifies no small-signal parameters (e.g., rπ, Cμ) or linearity metrics, and its high fT/low VCE(sat) design prioritizes saturated-region efficiency over analog fidelity. Use dedicated RF or audio transistors for linear gain stages.
What is the maximum allowable junction temperature and how is it enforced?
The 2SC5706-H has a maximum junction temperature (Tj) of 150°C, defined in its Absolute Maximum Ratings. This limit is enforced via thermal design: at Tc=25°C, the 15 W PC rating assumes ideal heatsinking; actual Tj must be calculated using θJC (junction-to-case) and θCA (case-to-ambient) values derived from layout and heatsink data - exceeding 150°C risks permanent parametric shift or failure.
2SC5706-H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-251-3 Short Leads, IPAK, TO-251AA
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 5 A
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Vce Saturation (Max) @ Ib, Ic:
- 240mV @ 100mA, 2A
- Current - Collector Cutoff (Max):
- 1µA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 500mA, 2V
- Power - Max:
- 800 mW
- Frequency - Transition:
- 400MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TP
2SC5706-H FAQ
1.How can I place an order for 2SC5706-H through Aetrix?
Please submit a Request for Quotation (RFQ) for 2SC5706-H 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 2SC5706-H reliable?
The price and inventory of 2SC5706-H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SC5706-H is usually 5 days.
3.What payment methods are accepted for 2SC5706-H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SC5706-H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2SC5706-H?
2SC5706-H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2SC5706-H 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 2SC5706-H?
For technical support, including 2SC5706-H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SC5706-H requirements.
6.How does Aetrix verify that 2SC5706-H is sourced from the original manufacturer or authorized distributors?
All 2SC5706-H 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 2SC5706-H meets industry standards.
7.What is the process for return or replacement of 2SC5706-H?
All 2SC5706-H units undergo pre-shipment inspection (PSI). If there is an issue with 2SC5706-H, 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 2SC5706-H part is unused and in its original packaging.
Return procedure for 2SC5706-H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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