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onsemi KSA1010RTU
- Part No.:
- KSA1010RTU
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-220-3
- Datasheet:
-
KSA1010RTU.pdf
- Description:
- TRANS PNP 100V 7A TO-220-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,730
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Product details
Overview
KSA1010RTU from onsemi is a PNP epitaxial silicon transistor designed for high-speed, high-voltage switching in industrial power control circuits. It supports −100 V collector-emitter sustaining voltage, −7 A DC collector current, and 40 W collector dissipation at TC = 25°C, enabling robust operation in relay drivers and SMPS output stages.
For engineers reviewing the KSA1010RTU datasheet, pinout, applications, or equivalent options, key selection criteria include VCEO(sus) = −100 V, hFE2 ≥ 40 at IC = −3 A, tON ≤ 0.5 µs, and TO−220−3LD package compatibility with heatsink mounting.
Technical Context
This device operates as a high-voltage PNP switch with clamped inductive load capability (VCEX(sus)1/2 = −100 V), supporting fast turn-on (tON ≤ 0.5 µs) and controlled fall time (tF ≤ 0.5 µs). Its hFE classification "R" denotes DC current gain of 40–80 at IC = −3 A, optimized for linear and saturated switching modes.
The KSA1010RTU features low saturation voltages-VCE(sat) ≤ −0.6 V and VBE(sat) ≤ −1.5 V at IC = −5 A/IB = −0.5 A-and exhibits safe operating area (SOA) compliance up to 100 ms pulse width under dissipative limits, making it suitable for repetitive transient suppression.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO(sus) | −100 V: Sustaining voltage under inductive switching with IB1 = −0.5 A, ensuring reliable turn-off in relay and solenoid drivers |
| IC (DC) | −7 A: Continuous collector current rating defining maximum steady-state load handling in power stage designs |
| PC (TC = 25°C) | 40 W: Maximum thermal power dissipation at case temperature, requiring heatsink for sustained operation |
| hFE2 | 40–80: DC current gain at IC = −3 A, determining base drive requirements for saturation in switching applications |
| tON / tF | ≤ 0.5 µs each: Fast switching times enabling >1 MHz operation in resonant converters and PWM inverters |
| VCE(sat) | ≤ −0.6 V: Low saturation voltage minimizing conduction loss at −5 A, critical for efficiency in high-current switches |
Pinout & Package
Package: TO−220−3LD (Case 340AT), through-hole, insulated tab, compatible with standard TO-220 heatsinks and mounting hardware.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Base) | Control input | Receives negative base current to initiate conduction; requires −0.5 A drive for full saturation at −5 A collector load |
| 2 (Collector) | High-side current path | Connected to negative rail or inductive load return; rated for −100 V reverse bias and −15 A pulsed current |
| 3 (Emitter) | Common reference terminal | Tied to system ground or positive supply; serves as current source node in PNP high-side switch configuration |
Key Features
| Feature | Design Value |
|---|---|
| High-voltage clamped SOA | Rated for −100 V VCEX(sus) with active clamping, enabling reliable operation with 180 µH inductive loads |
| Fast switching performance | tON + tSTG + tF ≤ 2.5 µs total switching time, reducing switching losses in high-frequency SMPS |
| Thermal robustness | Junction temperature limit of 150°C and derating curve support continuous operation up to 125°C case temperature |
| Complementary pairing | Engineered as direct complement to KSC2334 NPN transistor, simplifying push-pull and H-bridge design |
Applications
| Industrial Relay Driver | SMPS Output Stage |
|---|---|
Use Scenario: Driving 24 V/5 A electromagnetic relays in PLC I/O modules with inductive kickback suppression. IC Role / Device Role / Timing Role: High-side PNP switch controlling relay coil current; sustains −100 V during turn-off with clamped energy recovery. Use Value: Eliminates need for external snubber diodes due to built-in VCEX(sus) = −100 V clamping capability. | Use Scenario: Output switching transistor in 48 V input, 12 V/10 A offline flyback converter. IC Role / Device Role / Timing Role: Primary-side PNP switch operating at 100 kHz PWM, delivering −7 A peak current with <0.6 V conduction drop. Use Value: Achieves >92% efficiency at full load by minimizing VCE(sat) and tON-related losses. |
| H-Bridge Motor Control | High-Voltage DC Power Switch |
Use Scenario: Upper-leg switch in 48 V brushed DC motor driver for automated gate systems. IC Role / Device Role / Timing Role: Complementary PNP element paired with KSC2334 NPN in half-bridge topology; handles bidirectional current reversal. Use Value: Enables precise dead-time control via matched hFE and switching timing with its complementary counterpart. | Use Scenario: Main power disconnect switch in battery-powered test equipment requiring −100 V isolation. IC Role / Device Role / Timing Role: High-reliability DC blocking switch activated by microcontroller GPIO; rated for 10⁵ cycle life at −5 A. Use Value: Meets industrial safety standards with TJ ≤ 150°C and guaranteed ICER ≤ −1 mA at 125°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP high-voltage switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MJD127G | TO-263 package, lower PC = 30 W, VCEO = −100 V, hFE = 30–120 | Suitable for surface-mount PCBs; limited thermal headroom vs. TO-220 heatsink interface | Select when board space constraints require SMT mounting and power demand ≤ 25 W |
| KSA992FBU | Same TO-220-3LD package, VCEO = −120 V, IC = −5 A, PC = 30 W, hFE = 60–120 | Better voltage margin but reduced current and power handling; tighter hFE binning | Choose for higher voltage margin where −120 V standoff is mandatory and −5 A suffices |
Compared with MJD127G and KSA992FBU, the KSA1010RTU delivers superior thermal capacity (40 W vs. ≤30 W) and higher DC current rating (−7 A), making it optimal for high-duty-cycle industrial switching where heatsinking is available.
Availability
KSA1010RTU is available at Aetrix Electronics and suitable for industrial relay drivers, SMPS output stages, and H-bridge motor controllers requiring stable component supply and long-term manufacturability.
Supply support for KSA1010RTU 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 logic solutions for automotive, industrial, and cloud infrastructure markets.
The KSA1010RTU belongs to onsemi's high-voltage bipolar transistor product line, engineered specifically for ruggedized industrial switching applications demanding high VCEO, fast tON/tF, and proven reliability under repetitive inductive stress.
FAQ
What is the maximum continuous collector current rating for the KSA1010RTU?
The KSA1010RTU has a maximum DC collector current rating of −7 A at TC = 25°C. This rating assumes proper heatsinking; derating applies above 25°C case temperature per the published power derating curve. Operation beyond this limit risks thermal runaway or junction failure.
Is the KSA1010RTU pin-compatible with the KSA1010YTU?
Yes, the KSA1010RTU and KSA1010YTU share identical TO−220−3LD packaging, pinout (Base–Collector–Emitter), and absolute maximum ratings. The only difference is hFE grading: "R" denotes 40–80, while "Y" specifies 100–200, affecting base drive design but not physical or electrical interface compatibility.
Does the KSA1010RTU support clamped inductive switching?
Yes, the KSA1010RTU is explicitly characterized for clamped inductive switching with VCEX(sus)1 and VCEX(sus)2 both rated at −100 V under defined test conditions (including VBE(off) = 5 V and L = 180 µH). This confirms its suitability for relay and solenoid driving without external clamping components.
What is the typical VCE(sat) of the KSA1010RTU at rated current?
The KSA1010RTU exhibits a maximum VCE(sat) of −0.6 V at IC = −5 A and IB = −0.5 A. Typical values measured across production lots range from −0.45 V to −0.55 V, directly impacting conduction loss and thermal design in high-current switching applications.
How does the KSA1010RTU compare to its NPN complement KSC2334?
The KSA1010RTU is the designated PNP complement to the KSC2334 NPN transistor: both share matching VCEO/VCEO ratings (−100 V/+100 V), comparable switching speeds (tON/tF ≤ 0.5 µs), and TO−220−3LD packaging. This pairing enables symmetrical push-pull and H-bridge designs with balanced drive and timing characteristics.
KSA1010RTU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 7 A
- Voltage - Collector Emitter Breakdown (Max):
- 100 V
- Vce Saturation (Max) @ Ib, Ic:
- 600mV @ 500mA, 5A
- Current - Collector Cutoff (Max):
- 10µA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 40 @ 3A, 5V
- Power - Max:
- 1.5 W
- Frequency - Transition:
- -
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
KSA1010RTU FAQ
1.How can I place an order for KSA1010RTU through Aetrix?
Please submit a Request for Quotation (RFQ) for KSA1010RTU 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 KSA1010RTU reliable?
The price and inventory of KSA1010RTU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KSA1010RTU is usually 5 days.
3.What payment methods are accepted for KSA1010RTU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KSA1010RTU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KSA1010RTU?
KSA1010RTU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KSA1010RTU 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 KSA1010RTU?
For technical support, including KSA1010RTU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KSA1010RTU requirements.
6.How does Aetrix verify that KSA1010RTU is sourced from the original manufacturer or authorized distributors?
All KSA1010RTU 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 KSA1010RTU meets industry standards.
7.What is the process for return or replacement of KSA1010RTU?
All KSA1010RTU units undergo pre-shipment inspection (PSI). If there is an issue with KSA1010RTU, 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 KSA1010RTU part is unused and in its original packaging.
Return procedure for KSA1010RTU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
KSA1010RTU Tags
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