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onsemi KSB1097RTU
- Part No.:
- KSB1097RTU
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-220-3 Full Pack
- Datasheet:
-
KSB1097RTU.pdf
- Description:
- TRANS PNP 60V 7A TO-220F-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,370
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Product details
Overview
KSB1097RTU from ON Semiconductor (formerly Fairchild) is a PNP epitaxial silicon power transistor designed for low-frequency power amplification and industrial switching applications. It delivers -60 V VCEO, -7 A DC collector current, 30 W collector dissipation at TC=25°C, and hFE of 40–200 (classified R/O/Y), with -0.5 V VCE(sat) at -5 A/-0.5 A drive - used in motor control stages and relay drivers.
For engineers reviewing the KSB1097RTU datasheet, pinout, applications, or equivalent options, key selection considerations include its TO-220F insulated package, complementary pairing with KSD1588, safe operating area (SOA) performance under pulsed loads, and verified hFE classification bands for gain-matched designs.
Technical Context
This PNP bipolar junction transistor operates in linear amplification and saturated switching modes, with specified static characteristics across -5 A to -15 A pulse current and junction temperature up to 150°C. Its VBE(sat) of -1.5 V at -5 A/-0.5 A and VCE(sat) of -0.5 V define conduction losses in high-current industrial switches.
The device features a TO-220F package with electrically insulated tab, enabling direct heatsink mounting without isolation hardware. Its SOA curve supports 100 V × 1 A and 30 V × 10 A boundaries under 100 µs pulses, validated per JEDEC JESD24-10.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -60 V - Maximum sustainable collector-emitter voltage before breakdown in common-emitter configuration. |
| IC (DC) | -7 A - Continuous collector current rating defining steady-state thermal design limits at TC = 25°C. |
| PC (TC=25°C) | 30 W - Maximum power dissipation achievable with adequate heatsinking; drives thermal interface sizing. |
| hFE (IC = -3 A) | 40–200 - Gain classification band (R/O/Y) enabling matched-pair selection for differential amplifier or push-pull output stages. |
| VCE(sat) | -0.5 V @ IC = -5 A, IB = -0.5 A - Low saturation voltage minimizes conduction loss in high-current switching nodes. |
| Package | TO-220F - Insulated flange package allowing direct heatsink attachment without mica washer or insulator. |
Pinout & Package
TO-220F package with electrically isolated metal tab (flange). Mounting hole ø3.18 mm; flange thickness 0.80 mm; lead pitch 2.54 mm; overall height 15.80 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Base) | Current-controlled input terminal | Receives negative base drive to enable conduction; requires ≥-0.5 A for full saturation at -5 A load. |
| 2 (Collector) | Main current-carrying output terminal | Connected to high-side rail in PNP switch configurations; carries full load current to emitter. |
| 3 (Emitter) | Common reference terminal | Typically tied to system ground or positive rail; serves as current source return path in high-side switch topologies. |
Key Features
| Feature | Design Value |
|---|---|
| Complementary pair to KSD1588 | Enables balanced push-pull amplifier or H-bridge driver designs with matched VCE(sat) and hFE profiles. |
| TO-220F insulated flange | Eliminates need for thermal pad or isolation kit when mounted to grounded heatsinks - reduces BOM and assembly cost. |
| High pulse current capability | ICP = -15 A (PW ≤ 300 µs, duty ≤ 10%) supports short-duration motor stall or inrush current handling. |
| Controlled hFE classification | R/O/Y bins allow selective sourcing for gain-critical analog stages or matched switching pairs in industrial controls. |
Applications
| Industrial Relay Driver | DC Motor Control Stage |
|---|---|
Use Scenario: Driving 24 V/5 A electromagnetic relays in PLC output modules with galvanic isolation requirements. IC Role / Device Role / Timing Role: High-side PNP switch controlling relay coil current; operates in saturation with fixed base drive. Use Value: -0.5 V VCE(sat) ensures <1 W conduction loss at full load, reducing thermal stress on PCB-mounted heatsink. |
Use Scenario: Bidirectional 12–24 V brushed DC motor control using complementary emitter-follower output stage. IC Role / Device Role / Timing Role: PNP half-bridge leg providing current sourcing during forward rotation; paired with NPN KSD1588. Use Value: Matched hFE classification enables symmetrical turn-on/turn-off timing and reduced shoot-through risk. |
| Linear Power Amplifier | Power Supply Pass Transistor |
Use Scenario: Low-frequency audio amplifier output stage delivering 5 W into 8 Ω load with minimal crossover distortion. IC Role / Device Role / Timing Role: Class-AB emitter-follower output device biased with quiescent current; handles peak currents up to -7 A. Use Value: 30 W TC-rated dissipation supports sustained 3 W RMS output without forced cooling. |
Use Scenario: Series pass element in adjustable linear regulator supplying ±15 V/2 A instrumentation rails. IC Role / Device Role / Timing Role: PNP pass transistor regulating output by modulating base-emitter voltage; dissipates up to 25 W worst-case. Use Value: -60 V VCEO provides 2× margin over 24 V input, ensuring reliability during line transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MJD127G | VCEO = -100 V, IC = -8 A, TO-252 (DPAK); no hFE binning; lower PC (1.5 W @ TA) | Suitable for surface-mount designs with lower power density; lacks insulated flange and SOA data for pulsed loads. | Select when board space is constrained and heatsinking is via PCB copper; not drop-in for TO-220F mechanical layout. |
| BD139 | VCEO = -80 V, IC = -1.5 A, TO-126; hFE 25–250; PC = 12.5 W @ TC | Lower current/power rating; intended for medium-power audio and general-purpose switching, not industrial motor loads. | Use only in sub-2 A applications where gain matching and SOA are non-critical; requires different footprint and thermal design. |
Compared with MJD127G and BD139, the KSB1097RTU offers higher pulsed current (-15 A), TO-220F insulation, and factory hFE binning - making it uniquely suited for thermally demanding, gain-sensitive industrial switching where mechanical mounting and SOA compliance are mandatory.
Availability
KSB1097RTU is available at Aetrix Electronics and suitable for industrial relay drivers, DC motor control stages, linear power amplifiers, and power supply pass transistor applications requiring stable component supply and long-term manufacturability.
Supply support for KSB1097RTU 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 (acquired Fairchild Semiconductor in 2016) is a global supplier of energy-efficient semiconductor components for automotive, industrial, cloud computing, and IoT applications.
The KSB1097RTU belongs to Fairchild's legacy power bipolar transistor family, engineered specifically for robust, high-current industrial switching and low-frequency amplification where thermal stability and SOA integrity are critical.
FAQ
What is the maximum continuous collector current rating for KSB1097RTU?
The KSB1097RTU has a maximum continuous collector current (IC) rating of -7 A at case temperature TC = 25°C. This rating assumes proper heatsinking per the TO-220F package thermal resistance curve; derating applies above 25°C case temperature as shown in Figure 4 of the datasheet.
Is KSB1097RTU pin-compatible with KSD1588?
No, KSB1097RTU is not pin-compatible with KSD1588 - they are complementary devices (PNP vs. NPN) with identical TO-220F packaging and mirrored pinouts: KSB1097RTU uses Base/Collector/Emitter (1/2/3), while KSD1588 uses Emitter/Collector/Base (1/2/3). Layout must account for polarity reversal.
Does KSB1097RTU have an insulated package?
Yes, the KSB1097RTU uses the TO-220F package variant, which features an electrically insulated metal flange. This allows direct mounting to a grounded heatsink without requiring additional insulating hardware such as mica washers or thermal pads.
What hFE classification does KSB1097RTU carry?
The KSB1097RTU is manufactured in three hFE classifications: R (40–80), O (60–120), and Y (100–200) at VCE = -1 V and IC = -3 A. The suffix "RTU" indicates tape-and-reel packaging but does not denote a specific hFE bin; bin marking appears on the device body.
Can KSB1097RTU be used in linear amplifier applications?
Yes, the KSB1097RTU is explicitly rated for low-frequency power amplifier use per its datasheet designation. Its controlled hFE spread, low VCE(sat), and SOA compliance support Class-AB operation up to 5 W output into resistive loads with appropriate biasing and heatsinking.
KSB1097RTU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack
- Packaging:
- Tube
- Product Status:
- Obsolete
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 7 A
- Voltage - Collector Emitter Breakdown (Max):
- 60 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 500mA, 5A
- Current - Collector Cutoff (Max):
- 10µA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 40 @ 3A, 1V
- Power - Max:
- 2 W
- Frequency - Transition:
- -
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220F-3
KSB1097RTU FAQ
1.How can I place an order for KSB1097RTU through Aetrix?
Please submit a Request for Quotation (RFQ) for KSB1097RTU 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 KSB1097RTU reliable?
The price and inventory of KSB1097RTU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KSB1097RTU is usually 5 days.
3.What payment methods are accepted for KSB1097RTU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KSB1097RTU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KSB1097RTU?
KSB1097RTU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KSB1097RTU 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 KSB1097RTU?
For technical support, including KSB1097RTU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KSB1097RTU requirements.
6.How does Aetrix verify that KSB1097RTU is sourced from the original manufacturer or authorized distributors?
All KSB1097RTU 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 KSB1097RTU meets industry standards.
7.What is the process for return or replacement of KSB1097RTU?
All KSB1097RTU units undergo pre-shipment inspection (PSI). If there is an issue with KSB1097RTU, 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 KSB1097RTU part is unused and in its original packaging.
Return procedure for KSB1097RTU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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