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onsemi KSH3055TM
, SC-63.JPG)
- Part No.:
- KSH3055TM
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
KSH3055TM.pdf
- Description:
- TRANS NPN 60V 10A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:6,464
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Product details
Overview
KSH3055TM from ON Semiconductor is an NPN epitaxial silicon transistor designed for general-purpose amplification and low-speed switching in surface-mount power applications. It delivers 10 A collector current, 60 V collector-emitter sustaining voltage (VCEO(sus)), and 20 W collector dissipation at TC = 25°C, housed in a thermally efficient D-PAK package. It is commonly used in DC-DC converter output stages and motor drive interface circuits.
For engineers reviewing the KSH3055TM datasheet, pinout, applications, or equivalent options, key selection criteria include its verified 2 MHz fT, DC current gain specified up to 10 A (hFE = 5–100), VCE(sat) ≤ 1.1 V at 4 A/0.4 A, and junction temperature rating of 150°C - all critical for thermal-aware high-current linear and switching designs.
Technical Context
The KSH3055TM operates as a medium-power bipolar junction transistor with fixed NPN polarity and base-controlled current amplification. Its design emphasizes robust safe operating area (SOA) up to 100 V/10 A under pulsed conditions and supports DC biasing with VBE(on) = 1.8 V at IC = 4 A.
It features a D-PAK (TO-252) surface-mount package with exposed drain pad for enhanced thermal conduction, and its electrical behavior is characterized under strict pulse test conditions (PW ≤ 300 µs, duty cycle ≤ 2%). The device is electrically similar to KSE3055T but optimized for lead-formed SMT mounting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO(sus) | 60 V - Sustaining voltage under open-base condition; defines maximum off-state blocking capability in switching applications. |
| IC | 10 A - Continuous collector current rating; sets upper limit for sustained load-handling in amplifier or switch mode. |
| PC @ TC=25°C | 20 W - Maximum power dissipation with case heatsink; determines minimum required thermal interface design. |
| hFE | 5–100 - DC current gain range at VCE = 4 V; enables predictable base drive sizing across 4–10 A operating range. |
| fT | 2 MHz (min) - Current-gain bandwidth product at VCE = 10 V, IC = 500 mA; confirms suitability for audio-frequency and low-speed digital switching. |
| VCE(sat) | 1.1 V (max) at IC = 4 A, IB = 0.4 A - Low saturation voltage reduces conduction loss and self-heating in on-state operation. |
| TJ | 150°C - Maximum junction temperature; constrains PCB layout, copper pour, and ambient derating for reliability. |
Pinout & Package
D-PAK (TO-252) package with exposed thermal pad; 3-terminal configuration optimized for surface-mount assembly and thermal management via PCB copper plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - Base | Control electrode | Receives forward-biased current to enable transistor conduction; requires current-limited drive per hFE and IC target. |
| 2 - Collector | High-current output node | Connected to load or power rail; carries full IC; electrically tied to exposed thermal pad in D-PAK. |
| 3 - Emitter | Reference and return path | Common emitter connection; establishes ground or low-side reference; must be low-impedance for stable biasing. |
Key Features
| Feature | Design Value |
|---|---|
| DC current gain spec to 10 A | Enables accurate base drive calculation without extrapolation beyond typical hFE curves. |
| 2 MHz fT minimum | Supports reliable operation in audio amplifiers and PWM frequencies up to ~200 kHz with adequate gain margin. |
| D-PAK surface-mount package | Provides 20 W thermal dissipation capability with standard reflow soldering compatibility and PCB thermal relief design. |
| VCE(sat) ≤ 1.1 V @ 4 A | Reduces conduction loss to <1.8 W at 4 A, lowering thermal stress and improving efficiency in linear-regulator or switch-mode output stages. |
| Safe Operating Area (SOA) rated | Validated pulsed SOA up to 100 V/10 A ensures robustness during transient overloads and inductive switching events. |
Applications
| DC-DC Converter Output Stage | Linear Regulator Pass Element |
|---|---|
Use Scenario: High-current buck converter output stage delivering 5–12 V at up to 8 A to embedded system rails. IC Role / Device Role / Timing Role: NPN power switch controlling energy transfer through inductor; driven by PWM controller with base current limiting. Use Value: 60 V VCEO(sus) and 10 A IC support 12 V input with margin; low VCE(sat) minimizes dropout and heat generation. |
Use Scenario: Adjustable linear regulator supplying clean 3.3 V/3 A to FPGA core logic with tight ripple requirements. IC Role / Device Role / Timing Role: Series pass transistor regulating output voltage via feedback-controlled base bias. Use Value: Stable hFE up to 10 A allows precise current mirror-based error amplification; 150°C TJ enables compact heatsinking. |
| Motor Driver Interface | Industrial Relay Driver |
Use Scenario: Low-speed brushed DC motor control (24 V, 5 A) in factory automation actuators. IC Role / Device Role / Timing Role: Single-ended switch interfacing microcontroller GPIO to motor winding via flyback diode protection. Use Value: Verified SOA withstands inductive kickback; 20 W PC supports intermittent 5 A loads without forced cooling. |
Use Scenario: Driving 24 VDC industrial relay coils (100–500 mA) from PLC output modules. IC Role / Device Role / Timing Role: High-gain interface transistor amplifying low-current logic signal to full coil current. Use Value: hFE ≥ 20 at IC = 300 mA ensures reliable saturation with minimal base drive; TO-252 footprint simplifies board routing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MJD3055T4G | Same VCEO (60 V), lower IC (8 A), higher VCE(sat) (1.5 V @ 4 A), TO-252 package | Suitable for lower-current (<6 A) switching where margin on saturation loss is acceptable | Select when thermal budget allows higher conduction loss and peak current demand is ≤8 A |
| KSE3055T | Identical electrical specs, but I-PAK (TO-220AB) through-hole package; no exposed thermal pad | Preferred for prototyping or legacy through-hole boards; requires mechanical heatsink attachment | Choose for hand-soldered evaluation or when board assembly process does not support SMT D-PAK |
Compared with MJD3055T4G and KSE3055T, the KSH3055TM offers superior thermal performance via D-PAK's exposed pad, verified 10 A current handling, and tighter VCE(sat) - making it optimal for production SMT designs requiring high-reliability, high-current switching without added heatsinks.
Availability
KSH3055TM is available at Aetrix Electronics and suitable for DC-DC converters, motor drivers, linear regulators, and industrial relay interfaces requiring stable component supply and long-term manufacturability.
Supply support for KSH3055TM 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 discrete solutions for automotive, industrial, and consumer applications.
The KSH3055TM belongs to ON Semiconductor's legacy Fairchild power transistor portfolio, engineered for cost-effective, thermally robust medium-power switching and amplification in industrial control and power conversion systems.
FAQ
What is the package type of the KSH3055TM?
The KSH3055TM uses the D-PAK (TO-252) surface-mount package with three terminals (Base, Collector, Emitter) and an exposed thermal pad on the Collector side. This package enables high thermal conductivity to the PCB and is compatible with standard reflow soldering processes. The KSH3055TM's D-PAK footprint differs from the through-hole I-PAK variant used in the KSE3055T, and its dimensions are fully documented in the original Fairchild datasheet Rev. A4.
Does the KSH3055TM support continuous 10 A collector current?
Yes - the KSH3055TM is rated for IC = 10 A continuous at TC = 25°C, provided the PCB provides adequate copper area and thermal vias for the exposed D-PAK pad. Derating is required above 25°C case temperature; at TC = 100°C, the usable IC drops to approximately 5.5 A per the published power derating curve. The KSH3055TM's 20 W PC rating assumes ideal heatsinking conditions.
What is the minimum guaranteed fT for the KSH3055TM?
The KSH3055TM has a minimum guaranteed current-gain bandwidth product (fT) of 2 MHz, measured at VCE = 10 V and IC = 500 mA. This value is production-tested and assured across the full temperature range. While typical fT may exceed 3 MHz, design-critical applications must use the 2 MHz minimum for stability analysis - especially in audio amplifiers or low-speed switching circuits where gain-bandwidth trade-offs affect phase margin.
How does the KSH3055TM compare to the KSE3055T in terms of electrical performance?
The KSH3055TM and KSE3055T share identical absolute maximum ratings, electrical characteristics, and DC current gain specifications - including VCEO(sus) = 60 V, hFE = 5–100 at 4–10 A, and VCE(sat) ≤ 1.1 V. Their only difference is packaging: KSH3055TM is D-PAK (SMT), while KSE3055T is I-PAK (through-hole). Therefore, the KSH3055TM offers better thermal performance in automated assembly but requires SMT-compatible layout.
Is the KSH3055TM suitable for use in automotive applications?
The KSH3055TM is not AEC-Q101 qualified and is not recommended for automotive safety-critical or engine-compartment applications. It is rated for industrial temperature range (–55°C to +150°C) and intended for commercial/industrial power electronics such as factory automation, power supplies, and motor controls. For automotive use, ON Semiconductor offers AEC-Q101 qualified alternatives like the NSS3055MDT4G, which must be selected instead of the KSH3055TM.
KSH3055TM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 10 A
- Voltage - Collector Emitter Breakdown (Max):
- 60 V
- Vce Saturation (Max) @ Ib, Ic:
- 8V @ 3.3A, 10A
- Current - Collector Cutoff (Max):
- 50µA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 20 @ 4A, 4V
- Power - Max:
- 1.75 W
- Frequency - Transition:
- 2MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
KSH3055TM FAQ
1.How can I place an order for KSH3055TM through Aetrix?
Please submit a Request for Quotation (RFQ) for KSH3055TM 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 KSH3055TM reliable?
The price and inventory of KSH3055TM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KSH3055TM is usually 5 days.
3.What payment methods are accepted for KSH3055TM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KSH3055TM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KSH3055TM?
KSH3055TM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KSH3055TM 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 KSH3055TM?
For technical support, including KSH3055TM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KSH3055TM requirements.
6.How does Aetrix verify that KSH3055TM is sourced from the original manufacturer or authorized distributors?
All KSH3055TM 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 KSH3055TM meets industry standards.
7.What is the process for return or replacement of KSH3055TM?
All KSH3055TM units undergo pre-shipment inspection (PSI). If there is an issue with KSH3055TM, 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 KSH3055TM part is unused and in its original packaging.
Return procedure for KSH3055TM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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