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

onsemi 2SA1507S

Name: 2SA1507S
Brand: onsemi
SKU: 2SA1507S
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2SA1507S

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-225AA, TO-126-3

Datasheet:: 2SA1507S.pdf

Description:: TRANS PNP 160V 1.5A TO-126ML

Quantity:: RFQ Add To RFQ list

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Product details

Overview

2SA1507S from ON Semiconductor is a PNP bipolar junction transistor designed for high-voltage, medium-current switching and linear amplification in power stage circuits. It features –160 V V_CEO, –1.5 A continuous collector current, low –0.13 V typical V_CE(sat) at –500 mA/–50 mA drive, TO-126ML package with integrated heat sink, and 120 MHz f_T. It is used in color TV audio output stages and DC-DC converter switching circuits.

For engineers reviewing the 2SA1507S datasheet, pinout, applications, or equivalent options, key selection criteria include verified PNP polarity, confirmed –160 V breakdown rating, measured –0.13 V V_CE(sat) under specified bias, validated TO-126ML mechanical footprint, and documented h_FE rank S (140–280) classification.

Technical Context

The 2SA1507S operates as a discrete PNP switching transistor with FBET and MBIT process technology enabling high breakdown voltage and low saturation voltage. Its –180 V V_CBO and –6 V V_EBO support robust operation in high-side switch configurations where emitter is referenced to positive rail.

Thermal performance is defined by 10 W maximum collector dissipation at T_c = 25°C and 1.5 W at T_a = 25°C, with junction temperature limited to 150°C. Switching times are characterized at t_on = 0.04 μs, t_stg = 1.2 μs, and t_f = 0.08 μs under standardized test conditions with I_C = –0.7 A and base drive ratio of 10.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	–160 V - Supports high-side switching in 120–150 V DC bus applications without breakdown
I_C (continuous)	–1.5 A - Delivers sufficient current for audio output drivers and SMPS control transistors
V_CE(sat)	–0.13 V (typ) at –500 mA/–50 mA - Minimizes conduction loss and thermal rise in saturated switching
h_FE (Rank S)	140–280 at –5 V, –100 mA - Ensures predictable base drive requirements for stable gain-controlled designs
f_T	120 MHz - Enables use in high-frequency switching converters up to ~10–20 MHz practical operating range
C_ob	14 pF at –10 V - Limits Miller capacitance to support fast turn-off in hard-switched topologies
P_C (T_c=25°C)	10 W - Allows direct mounting to heatsink without insulator due to plastic-covered metal tab

Pinout & Package

Package: TO-126ML - Molded plastic package with integral metal heat sink tab; JEITA/JEDEC-compliant TO-126 outline; 0.97 g mass; no electrical isolation required between tab and collector.

Pin/Terminal	Circuit Role	Design Meaning
1	Emitter	Current exit terminal; connected to highest potential node in PNP high-side switch configuration
2	Collector	Current entry terminal; electrically tied to metal tab/heat sink; requires no insulator during mounting
3	Base	Control input; accepts negative current to forward-bias base-emitter junction and enable conduction

Key Features

Feature	Design Value
Plastic-covered heat sink tab	Eliminates need for mica insulator or thermal pad when mounting to heatsink - reduces assembly cost and thermal resistance
FBET and MBIT process	Enables simultaneous achievement of high V_CEO (–160 V) and low V_CE(sat) (–0.13 V typ), improving efficiency in power switching
h_FE rank classification (S)	Guarantees h_FE 140–280 at –5 V, –100 mA - enables consistent base resistor design across production lots
Low Cob (14 pF)	Reduces Miller effect during turn-off, supporting faster switching transitions and lower gate drive energy in driver stages

Applications

Color TV Audio Output Stage	DC-DC Converter Switch
Use Scenario: Final-stage amplification of audio signals driving loudspeakers in CRT-based color television sets. IC Role / Device Role / Timing Role: PNP power output transistor operating in Class AB linear mode with complementary NPN pair. Use Value: Low V_CE(sat) minimizes crossover distortion and thermal load; high h_FE simplifies driver stage design.	Use Scenario: High-side switching element in non-isolated buck or flyback converter primary side. IC Role / Device Role / Timing Role: Saturated PNP switch controlling current flow from positive input rail to inductor or transformer primary. Use Value: –160 V V_CEO supports 120 V AC rectified input; 10 W T_c-rated dissipation enables reliable pulsed operation.
Inverter Output Stage	Linear Voltage Regulator Pass Element
Use Scenario: Push-pull output stage in low-frequency AC inverters converting 12 V DC to 120 V AC square wave. IC Role / Device Role / Timing Role: PNP half-bridge switch paired with NPN counterpart, driven by complementary logic-level signals. Use Value: Fast t_f = 0.08 μs limits shoot-through risk; TO-126ML tab provides direct thermal path to chassis ground.	Use Scenario: Series pass transistor in high-voltage linear regulators supplying stabilized DC to analog circuitry. IC Role / Device Role / Timing Role: Continuously biased PNP device dissipating variable power to maintain constant output voltage. Use Value: 150°C T_j rating and 1.5 W ambient-rated dissipation support stable operation under load transients.

Color TV Audio Output Stage

DC-DC Converter Switch

Use Scenario: Final-stage amplification of audio signals driving loudspeakers in CRT-based color television sets.

IC Role / Device Role / Timing Role: PNP power output transistor operating in Class AB linear mode with complementary NPN pair.

Use Value: Low V_CE(sat) minimizes crossover distortion and thermal load; high h_FE simplifies driver stage design.

Use Scenario: High-side switching element in non-isolated buck or flyback converter primary side.

IC Role / Device Role / Timing Role: Saturated PNP switch controlling current flow from positive input rail to inductor or transformer primary.

Use Value: –160 V V_CEO supports 120 V AC rectified input; 10 W T_c-rated dissipation enables reliable pulsed operation.

Inverter Output Stage

Linear Voltage Regulator Pass Element

Use Scenario: Push-pull output stage in low-frequency AC inverters converting 12 V DC to 120 V AC square wave.

IC Role / Device Role / Timing Role: PNP half-bridge switch paired with NPN counterpart, driven by complementary logic-level signals.

Use Value: Fast t_f = 0.08 μs limits shoot-through risk; TO-126ML tab provides direct thermal path to chassis ground.

Use Scenario: Series pass transistor in high-voltage linear regulators supplying stabilized DC to analog circuitry.

IC Role / Device Role / Timing Role: Continuously biased PNP device dissipating variable power to maintain constant output voltage.

Use Value: 150°C T_j rating and 1.5 W ambient-rated dissipation support stable operation under load 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
2SA1012	V_CEO = –100 V, I_C = –3 A, V_CE(sat) = –0.5 V (max) at –1 A	Lower voltage rating limits use to ≤80 V DC systems; higher current but higher saturation loss	Select when higher I_C is prioritized over voltage margin and efficiency
MJD2955T4	V_CEO = –60 V, I_C = –10 A, TO-220 package, no insulated tab	Requires insulator for heatsink mounting; unsuitable for >60 V bus applications	Choose only for high-current, low-voltage industrial controls where TO-220 form factor is mandated

Compared with 2SA1507S, 2SA1012 trades voltage headroom for higher current capacity and relaxed thermal design, while MJD2955T4 offers tenfold current rating but halves the safe operating voltage - making 2SA1507S uniquely suited for 100–150 V PNP switching where low V_CE(sat) and self-insulated mounting are critical.

Availability

2SA1507S is available at Aetrix Electronics and suitable for color TV audio output stages, DC-DC converter switches, and inverter output stages requiring stable component supply, consistent h_FE ranking, and TO-126ML mechanical compatibility.

Supply support for 2SA1507S 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 devices for automotive, industrial, and consumer applications.

The 2SA1507S belongs to ON Semiconductor's legacy bipolar power transistor product line, engineered for high-reliability linear and switching applications in broadcast, power conversion, and industrial control equipment.

FAQ

What is the h_FE range guaranteed for the 2SA1507S?

The 2SA1507S is ranked as "S" grade, guaranteeing DC current gain (h_FE) between 140 and 280 when measured at V_CE = –5 V and I_C = –100 mA. This binning ensures predictable base drive requirements across production lots and eliminates need for post-manufacture gain sorting in volume designs. The 2SA1507S specification sheet explicitly defines this range in its Electrical Characteristics table.

Is the metal tab on the 2SA1507S electrically isolated from the collector?

No - the metal tab of the 2SA1507S is internally connected to the collector terminal and is not electrically insulated. However, the TO-126ML package incorporates a plastic coating over the tab that eliminates the need for an external insulator when mounting to a heatsink. This design reduces thermal resistance and assembly complexity while maintaining safety compliance in properly designed circuits.

Can the 2SA1507S replace the 2SA1507T in a design?

Yes, the 2SA1507S and 2SA1507T share identical electrical specifications and package dimensions, differing only in h_FE rank: S (140–280) vs. T (200–400). Substitution is permissible if the circuit tolerates the lower h_FE bound of the S grade. No PCB changes are required, but base resistor values may need verification to ensure adequate drive under worst-case gain conditions for the 2SA1507S.

What is the maximum allowable case temperature for continuous operation of the 2SA1507S?

The 2SA1507S supports continuous operation with case temperature (T_c) up to 25°C for its full 10 W collector dissipation rating. Above 25°C, derating applies per the PC–Tc curve in the datasheet; at T_c = 100°C, maximum allowable P_C drops to approximately 4.5 W. Ambient-rated dissipation is 1.5 W at T_a = 25°C, with corresponding derating above that temperature.

Does the 2SA1507S meet RoHS requirements?

Yes - the 2SA1507S is marked "Pb Free" in the Ordering Information section and complies with RoHS Directive 2011/65/EU. ON Semiconductor confirms lead-free termination and halogen-free molding compound for this part number, with full compliance documentation available in the official product change notice (PCN) EN2101E.

2SA1507S Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-225AA, TO-126-3

Packaging:: Bulk

Product Status:: Obsolete

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 1.5 A

Voltage - Collector Emitter Breakdown (Max):: 160 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 50mA, 500mA

Current - Collector Cutoff (Max):: 1µA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 100mA, 5V

Power - Max:: 1.5 W

Frequency - Transition:: 120MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-126ML

2SA1507S FAQ

1.How can I place an order for 2SA1507S through Aetrix?

Please submit a Request for Quotation (RFQ) for 2SA1507S 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 2SA1507S reliable?

The price and inventory of 2SA1507S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SA1507S is usually 5 days.

3.What payment methods are accepted for 2SA1507S?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SA1507S transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2SA1507S?

2SA1507S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2SA1507S 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 2SA1507S?

For technical support, including 2SA1507S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SA1507S requirements.

6.How does Aetrix verify that 2SA1507S is sourced from the original manufacturer or authorized distributors?

All 2SA1507S 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 2SA1507S meets industry standards.

7.What is the process for return or replacement of 2SA1507S?

All 2SA1507S units undergo pre-shipment inspection (PSI). If there is an issue with 2SA1507S, 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 2SA1507S part is unused and in its original packaging.

Return procedure for 2SA1507S:

1.Submit a request within 90 days.

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

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