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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

onsemi KSP06TA

Name: KSP06TA
Brand: onsemi
SKU: KSP06TA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: KSP06TA

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-226-3, TO-92-3 (TO-226AA) Formed Leads

Datasheet:: KSP06TA.pdf

Description:: TRANS NPN 80V 0.5A TO-92-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

KSP06TA from ON Semiconductor is an NPN epitaxial silicon transistor in TO-92 package, rated for 80 V collector-emitter voltage (V_CEO), 500 mA collector current (I_C), and 625 mW power dissipation (P_C). It delivers DC current gain (h_FE) ≥50 at I_C = 10 mA and V_CE = 1 V, with f_T = 100 MHz, and serves as a general-purpose switching and amplification device in low-voltage power supplies and signal conditioning circuits.

For engineers reviewing the KSP06TA datasheet, pinout, applications, or equivalent options, key selection criteria include its 80 V V_CEO, 500 mA I_C, TO-92 mechanical compatibility, h_FE stability across 10–100 mA, and saturation voltage of 0.25 V at I_C/I_B = 100 mA/10 mA - all critical for discrete BJT stage design in industrial controls and consumer electronics.

Technical Context

The KSP06TA operates as a standard NPN bipolar junction transistor with fixed emitter-base and collector-base breakdown limits (V_EBO = 4 V, V_CBO = 80 V) and defined thermal limits (T_J = 150 °C). Its h_FE remains ≥50 across I_C = 10–100 mA at V_CE = 1 V, supporting consistent gain in linear and saturated switching modes.

It exhibits V_CE(sat) = 0.25 V under forced β = 10 conditions and V_BE(on) = 1.2 V at I_C = 100 mA, enabling predictable base drive requirements. The 100 MHz f_T confirms suitability for audio-frequency amplification and moderate-speed digital switching up to ~10 MHz.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	80 V - maximum safe collector-emitter voltage before breakdown; defines upper rail limit in switch-mode or amplifier stages
I_C	500 mA - continuous collector current rating; sets load-driving capability in relay drivers or LED arrays
P_C	625 mW - maximum power dissipation at T_A = 25 °C; requires thermal derating above ambient
h_FE	≥50 at I_C = 10 mA, V_CE = 1 V - ensures reliable current amplification in bias networks and small-signal gain stages
f_T	100 MHz - unity-gain bandwidth; supports stable operation in audio preamps and low-MHz digital logic interfaces
V_CE(sat)	0.25 V at I_C = 100 mA, I_B = 10 mA - enables low-loss saturation in switching applications with minimal conduction loss
V_EBO	4 V - emitter-base reverse breakdown voltage; constrains base bias network design to avoid reverse junction conduction

Pinout & Package

Package: TO-92, 3-lead, straight-lead ammo packing configuration per JEDEC TO-92 standard. Leads are arranged with Emitter (1), Base (2), Collector (3) when viewed with flat side facing outward and leads pointing downward.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current sink terminal	Reference node for base-emitter bias; connects to ground or low-side return path in common-emitter configurations
2 (Base)	Control input	Receives forward-bias current to enable conduction; requires series resistor to limit I_B based on h_FE and load current
3 (Collector)	Current source terminal	Connects to load and supply rail; carries full I_C during active/saturated operation; must withstand V_CEO = 80 V

Key Features

Feature	Design Value
High V_CEO rating	80 V enables use in 24–48 V industrial control rails without derating or cascading transistors
Stable h_FE over wide I_C range	≥50 at both 10 mA and 100 mA supports consistent gain in both small-signal and medium-power stages
Low V_CE(sat)	0.25 V at forced β = 10 reduces power loss and heat generation in saturated switching applications
100 MHz f_T	Supports clean amplification of audio signals and reliable edge response in <10 MHz digital switching
TO-92 mechanical standardization	Enables drop-in replacement in legacy through-hole designs and compatibility with automated insertion equipment

Applications

DC Power Supply Regulation	Industrial Sensor Interface
Use Scenario: Linear regulator pass element in 5–24 V output supplies delivering up to 300 mA load current. IC Role / Device Role / Timing Role: NPN transistor operating in active region to adjust output voltage via feedback-controlled base current. Use Value: 80 V V_CEO provides headroom for 36 V input transients; 625 mW P_C allows adequate thermal margin at 300 mA × 2 V dropout.	Use Scenario: Signal-level translation and buffering between 3.3 V microcontroller GPIO and 12 V industrial sensors. IC Role / Device Role / Timing Role: Discrete level shifter and current amplifier driving optocoupler inputs or analog sensor excitation lines. Use Value: h_FE ≥50 ensures robust drive at 10–20 mA sensor currents; TO-92 footprint simplifies layout in space-constrained sensor modules.
LED Driver Circuit	Relay Control Stage
Use Scenario: Constant-current driver for high-brightness indicator LEDs in panel-mounted equipment. IC Role / Device Role / Timing Role: Switching transistor in common-emitter configuration, modulated by PWM or logic-level signals. Use Value: V_CE(sat) = 0.25 V minimizes power loss and self-heating at 100–200 mA LED currents; 500 mA I_C rating accommodates surge peaks.	Use Scenario: Low-side driver for 12 V/24 V electromagnetic relays in PLC I/O modules. IC Role / Device Role / Timing Role: Saturated switch controlling relay coil current, interfaced with microcontroller GPIO via base resistor. Use Value: 80 V V_CEO safely clamps inductive kickback spikes; TO-92 mounting allows direct PCB integration near relay footprints.

DC Power Supply Regulation

Industrial Sensor Interface

Use Scenario: Linear regulator pass element in 5–24 V output supplies delivering up to 300 mA load current.

IC Role / Device Role / Timing Role: NPN transistor operating in active region to adjust output voltage via feedback-controlled base current.

Use Value: 80 V V_CEO provides headroom for 36 V input transients; 625 mW P_C allows adequate thermal margin at 300 mA × 2 V dropout.

Use Scenario: Signal-level translation and buffering between 3.3 V microcontroller GPIO and 12 V industrial sensors.

IC Role / Device Role / Timing Role: Discrete level shifter and current amplifier driving optocoupler inputs or analog sensor excitation lines.

Use Value: h_FE ≥50 ensures robust drive at 10–20 mA sensor currents; TO-92 footprint simplifies layout in space-constrained sensor modules.

LED Driver Circuit

Relay Control Stage

Use Scenario: Constant-current driver for high-brightness indicator LEDs in panel-mounted equipment.

IC Role / Device Role / Timing Role: Switching transistor in common-emitter configuration, modulated by PWM or logic-level signals.

Use Value: V_CE(sat) = 0.25 V minimizes power loss and self-heating at 100–200 mA LED currents; 500 mA I_C rating accommodates surge peaks.

Use Scenario: Low-side driver for 12 V/24 V electromagnetic relays in PLC I/O modules.

IC Role / Device Role / Timing Role: Saturated switch controlling relay coil current, interfaced with microcontroller GPIO via base resistor.

Use Value: 80 V V_CEO safely clamps inductive kickback spikes; TO-92 mounting allows direct PCB integration near relay footprints.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MPSA42	V_CEO = 300 V, I_C = 500 mA, h_FE = 40–120, TO-92 package	Higher voltage rating but lower minimum h_FE; suited for HV flyback snubbers or AC line sensing, not optimized for low-V_CE saturation	Select when >100 V breakdown is required; avoid if low V_CE(sat) or tight h_FE tolerance is critical
BC547B	V_CEO = 45 V, I_C = 100 mA, h_FE = 200–450, TO-92 package	Lower voltage/current ratings but higher gain; better for small-signal amplification than power switching	Choose for low-noise preamp stages or low-current logic interface; not suitable for >100 mA loads or >45 V rails

Compared with MPSA42 and BC547B, the KSP06TA offers balanced performance: 80 V V_CEO exceeds BC547B's 45 V while maintaining lower V_CE(sat) than MPSA42, making it optimal for 24–48 V industrial switching where both voltage margin and conduction efficiency matter.

Availability

KSP06TA is available at Aetrix Electronics and suitable for industrial control systems, sensor interface modules, and LED driver circuits requiring stable component supply, long-term manufacturability, and TO-92 through-hole compatibility.

Supply support for KSP06TA 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 energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.

The KSP06TA belongs to ON Semiconductor's legacy general-purpose bipolar transistor product line, originally developed by Fairchild Semiconductor and maintained for cost-sensitive, high-reliability through-hole applications in industrial and commercial electronics.

FAQ

What is the maximum collector-emitter voltage rating for the KSP06TA?

The KSP06TA has a maximum collector-emitter voltage (V_CEO) rating of 80 V at T_A = 25 °C. This rating defines the highest voltage that can be applied between collector and emitter with the base open before breakdown occurs. Engineers must ensure system operating voltages remain below this limit, applying appropriate safety margins for temperature derating and transient spikes in real-world KSP06TA deployments.

Does the KSP06TA have a guaranteed DC current gain (h_FE) specification?

Yes, the KSP06TA guarantees h_FE ≥50 at V_CE = 1 V and I_C = 10 mA, and also maintains h_FE ≥50 at I_C = 100 mA under the same V_CE condition. This dual-point specification ensures predictable current amplification across a broad operating range, making the KSP06TA suitable for both small-signal amplification and medium-current switching where gain consistency matters.

What is the saturation voltage (V_CE(sat)) of the KSP06TA under typical switching conditions?

The KSP06TA exhibits V_CE(sat) = 0.25 V when operated with I_C = 100 mA and I_B = 10 mA (forced β = 10). This low saturation voltage directly reduces conduction losses and self-heating in switching applications such as relay drivers or LED current control, improving overall efficiency and thermal reliability in the KSP06TA-based design.

Is the KSP06TA available in tape-and-reel packaging?

No, the KSP06TA is supplied in ammo pack (bulk tape) format per the official ordering information. While other variants like KSP06BU are offered in bulk, and KSP05TA uses ammo packing, the KSP06TA specifically uses straight-lead TO-92 in ammo packaging - not tape-and-reel. For automated assembly requiring tape-and-reel, alternative part numbers or packaging options must be verified with ON Semiconductor's current product matrix.

How does the KSP06TA compare to the KSP05TA in terms of voltage rating and interchangeability?

The KSP06TA is rated for 80 V V_CEO, whereas the KSP05TA is rated for 60 V. Both share identical package (TO-92), pinout, power dissipation (625 mW), and gain characteristics, making them functionally interchangeable in circuits operating ≤60 V. However, substituting KSP05TA for KSP06TA in 61–80 V applications risks premature breakdown - the KSP06TA should be selected where higher voltage headroom is required in the final KSP06TA implementation.

KSP06TA Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-226-3, TO-92-3 (TO-226AA) Formed Leads

Packaging:: Cut Tape (CT)

Product Status:: Obsolete

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 500 mA

Voltage - Collector Emitter Breakdown (Max):: 80 V

Vce Saturation (Max) @ Ib, Ic:: 250mV @ 10mA, 100mA

Current - Collector Cutoff (Max):: 100nA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 50 @ 100mA, 1V

Power - Max:: 625 mW

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-92-3

KSP06TA FAQ

1.How can I place an order for KSP06TA through Aetrix?

Please submit a Request for Quotation (RFQ) for KSP06TA 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 KSP06TA reliable?

The price and inventory of KSP06TA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KSP06TA is usually 5 days.

3.What payment methods are accepted for KSP06TA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KSP06TA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for KSP06TA?

KSP06TA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your KSP06TA 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 KSP06TA?

For technical support, including KSP06TA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KSP06TA requirements.

6.How does Aetrix verify that KSP06TA is sourced from the original manufacturer or authorized distributors?

All KSP06TA 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 KSP06TA meets industry standards.

7.What is the process for return or replacement of KSP06TA?

All KSP06TA units undergo pre-shipment inspection (PSI). If there is an issue with KSP06TA, 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 KSP06TA part is unused and in its original packaging.

Return procedure for KSP06TA:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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