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

onsemi 12A02CH-TL-E

Name: 12A02CH-TL-E
Brand: onsemi
SKU: 12A02CH-TL-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 12A02CH-TL-E

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: 12A02CH-TL-E.pdf

Description:: TRANS PNP 12V 1A 3-CPH

Quantity:: RFQ Add To RFQ list

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Product details

Overview

12A02CH-TL-E from onsemi is a PNP bipolar junction transistor in CPH3 (SC-59/SOT-23) package, rated for −12 V V_CEO, −1 A I_C, and 700 mW power dissipation on ceramic board; features low V_CE(sat) of −240 mV at I_C = −400 mA/I_B = −20 mA and f_T of 450 MHz, used in muting circuits and small motor drive stages.

For engineers reviewing the 12A02CH-TL-E datasheet, pinout, applications, or equivalent options, key selection criteria include verified PNP switching performance, confirmed −12 V/−1 A ratings, validated CPH3 footprint compatibility, and documented low-saturation behavior under pulsed and DC conditions.

Technical Context

This device operates as a single PNP BJT with fixed emitter-base and collector-base junctions, optimized for low-voltage, medium-current switching. Its h_FE range of 300–700 at V_CE = −2 V/I_C = −10 mA supports stable current amplification in bias-controlled driver stages.

Switching performance is characterized by t_on = 30 ns, t_stg = 75 ns, and t_f = 15 ns under specified test conditions (V_CC = −5 V, R_L = 220 μF/470 μF, P_W = 20 μs), enabling use in high-speed digital interface and PWM-driven load control.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−12 V: Maximum allowable collector-emitter voltage before breakdown in common-emitter configuration.
I_C	−1 A: Continuous DC collector current rating defining safe linear and saturation-region operation.
V_CE(sat)	−240 mV max at I_C = −400 mA/I_B = −20 mA: Ensures minimal conduction loss in saturated switch applications.
f_T	450 MHz typ at V_CE = −2 V/I_C = −50 mA: Confirms usable gain at RF-adjacent frequencies for fast-switching designs.
C_ob	6 pF max at V_CB = −10 V/f = 1 MHz: Limits capacitive loading in high-speed gate or signal path interfaces.
h_FE	300–700 at V_CE = −2 V/I_C = −10 mA: Provides predictable base drive requirements for reliable turn-on margin.
P_C	700 mW on 600 mm² × 0.8 mm ceramic board: Defines thermal derating envelope for PCB-level power handling.

Pinout & Package

Package: CPH3 (JEITA SC-59 / JEDEC TO-236 / industry-standard SOT-23 variant), surface-mount, 3-pin plastic case with 0.013 g mass and 2.9 mm × 1.6 mm footprint.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control terminal requiring −20 mA I_B to saturate at −400 mA I_C; polarity-sensitive for PNP turn-on.
2	Emitter	Common reference node tied to higher potential rail; carries full load current in emitter-follower or switch configurations.
3	Collector	Output terminal connected to load; reverse-biased relative to emitter during conduction; handles −1 A continuous current.

Key Features

Feature	Design Value
Low V_CE(sat)	−240 mV max enables <100 mW conduction loss at −400 mA, reducing thermal stress in compact layouts.
High f_T	450 MHz bandwidth supports clean edge transitions in 10–50 MHz digital switching and pulse-width modulation.
Robust SOA	Rated for −2 A pulsed I_CP and 150 °C T_j, allowing short-duration overload tolerance in motor startup or surge events.
Pb-free TL reel packaging	3,000 pcs./reel with Pb-free finish and embossed tape, compliant with RoHS and J-STD-020 moisture sensitivity level MSL3.

Applications

Audio Muting Circuit	Small DC Motor Driver
Use Scenario: Silent power-up/power-down sequencing in portable audio amplifiers and DAC output stages. IC Role / Device Role / Timing Role: PNP switch disconnecting speaker path by pulling amplifier output to ground or rail when inactive. Use Value: −240 mV V_CE(sat) minimizes audible pop/click; 75 ns storage time ensures fast mute/unmute response.	Use Scenario: Directional control and enable/disable logic for 3–12 V brushed DC motors in robotics and actuator modules. IC Role / Device Role / Timing Role: Low-side or high-side switch regulating current flow to motor windings via microcontroller GPIO. Use Value: −1 A I_C rating supports typical 500–800 mA stall currents; 30 ns t_on enables precise PWM duty-cycle fidelity.
Low-Frequency Amplifier	Signal-Level Switching
Use Scenario: Pre-amplifier stage in sensor signal conditioning where low-noise, moderate-gain amplification is required below 1 MHz. IC Role / Device Role / Timing Role: Common-emitter amplifier biased in linear region using h_FE = 300–700 for stable gain control. Use Value: 450 MHz f_T ensures ample gain margin at audio frequencies; −12 V V_CEO accommodates supply headroom in dual-rail systems.	Use Scenario: Logic-level translation and signal gating between mixed-voltage domains (e.g., 3.3 V MCU to −5 V analog subsystem). IC Role / Device Role / Timing Role: Inverting level shifter or enable gate controlling analog signal path integrity. Use Value: 6 pF C_ob limits capacitive feedthrough; 15 ns t_f preserves signal edge integrity in sub-100 ns timing windows.

Audio Muting Circuit

Small DC Motor Driver

Use Scenario: Silent power-up/power-down sequencing in portable audio amplifiers and DAC output stages.

IC Role / Device Role / Timing Role: PNP switch disconnecting speaker path by pulling amplifier output to ground or rail when inactive.

Use Value: −240 mV V_CE(sat) minimizes audible pop/click; 75 ns storage time ensures fast mute/unmute response.

Use Scenario: Directional control and enable/disable logic for 3–12 V brushed DC motors in robotics and actuator modules.

IC Role / Device Role / Timing Role: Low-side or high-side switch regulating current flow to motor windings via microcontroller GPIO.

Use Value: −1 A I_C rating supports typical 500–800 mA stall currents; 30 ns t_on enables precise PWM duty-cycle fidelity.

Low-Frequency Amplifier

Signal-Level Switching

Use Scenario: Pre-amplifier stage in sensor signal conditioning where low-noise, moderate-gain amplification is required below 1 MHz.

IC Role / Device Role / Timing Role: Common-emitter amplifier biased in linear region using h_FE = 300–700 for stable gain control.

Use Value: 450 MHz f_T ensures ample gain margin at audio frequencies; −12 V V_CEO accommodates supply headroom in dual-rail systems.

Use Scenario: Logic-level translation and signal gating between mixed-voltage domains (e.g., 3.3 V MCU to −5 V analog subsystem).

IC Role / Device Role / Timing Role: Inverting level shifter or enable gate controlling analog signal path integrity.

Use Value: 6 pF C_ob limits capacitive feedthrough; 15 ns t_f preserves signal edge integrity in sub-100 ns timing windows.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBT3906LT1G	V_CEO = −40 V, I_C = −200 mA, V_CE(sat) = −400 mV @ I_C = −10 mA - higher voltage rating but lower current and higher saturation voltage.	Suitable for general-purpose logic-level switching but not for −400 mA load switching or motor drive.	Select when higher V_CEO margin is critical and load current remains ≤100 mA.
DXT3906-7-F	V_CEO = −40 V, I_C = −200 mA, SOT-23 package, f_T = 250 MHz - similar footprint but lower bandwidth and current capability.	Applicable in low-power analog switches and bias networks, not in high-current muting or motor control.	Prefer for cost-sensitive, low-duty-cycle signal gating where thermal performance is non-critical.

Compared with MMBT3906LT1G and DXT3906-7-F, the 12A02CH-TL-E delivers superior current handling (−1 A vs. −200 mA), lower V_CE(sat) (−240 mV vs. −400 mV), and higher f_T (450 MHz vs. ≤250 MHz), making it uniquely suited for demanding PNP switching in space-constrained, thermally sensitive applications.

Availability

12A02CH-TL-E is available at Aetrix Electronics and suitable for audio muting circuits, small DC motor drivers, and low-frequency amplifier stages requiring stable component supply, consistent Pb-free compliance, and verified CPH3 footprint availability.

Supply support for 12A02CH-TL-E 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 focused on energy-efficient innovation across automotive, industrial, cloud, and IoT markets.

The 12A02CH-TL-E belongs to onsemi's CPH3-packaged bipolar transistor family designed specifically for high-reliability, low-V_CE(sat) switching in portable and space-constrained power-control applications.

FAQ

What is the maximum continuous collector current rating for the 12A02CH-TL-E?

The 12A02CH-TL-E has a maximum continuous collector current (I_C) rating of −1 A at T_a = 25 °C when mounted on a ceramic board (600 mm² × 0.8 mm). Derating applies above 25 °C per the PC–Ta curve in the datasheet, with absolute maximum junction temperature limited to 150 °C. This rating ensures robust operation in motor drive and muting applications where sustained current flow occurs.

Does the 12A02CH-TL-E support high-speed switching applications?

Yes, the 12A02CH-TL-E supports high-speed switching with t_on = 30 ns, t_stg = 75 ns, and t_f = 15 ns under defined test conditions (V_CC = −5 V, P_W = 20 μs). Its 450 MHz f_T further confirms suitability for fast digital interface and PWM-based control up to ~50 MHz, provided layout minimizes parasitic inductance and capacitance.

What is the pin configuration and package type of the 12A02CH-TL-E?

The 12A02CH-TL-E uses the CPH3 package (JEITA SC-59 / JEDEC TO-236), a 3-pin SOT-23 variant with pin 1 = Base, pin 2 = Emitter, pin 3 = Collector. The marking "12A02CH" appears on the top surface, and the "TL" suffix denotes embossed tape-and-reel packaging with 3,000 units per reel and Pb-free finish.

What is the typical V_CE(sat) of the 12A02CH-TL-E under standard operating conditions?

The typical V_CE(sat) of the 12A02CH-TL-E is −120 mV at I_C = −400 mA and I_B = −20 mA, with a maximum of −240 mV under the same conditions. This low saturation voltage directly reduces conduction losses and self-heating, making the 12A02CH-TL-E especially effective in battery-powered muting and motor-enable functions.

Is the 12A02CH-TL-E RoHS-compliant and halogen-free?

Yes, the 12A02CH-TL-E is RoHS-compliant and halogen-free, as confirmed by its "Pb Free" marking and compliance with JESD204B and IPC/JEDEC J-STD-020 moisture sensitivity level MSL3. The device meets onsemi's environmental policy and is qualified for lead-free reflow soldering processes up to 260 °C peak temperature.

12A02CH-TL-E Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 1 A

Voltage - Collector Emitter Breakdown (Max):: 12 V

Vce Saturation (Max) @ Ib, Ic:: 240mV @ 20mA, 400mA

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 300 @ 10mA, 2V

Power - Max:: 700 mW

Frequency - Transition:: 450MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 3-CPH

12A02CH-TL-E FAQ

1.How can I place an order for 12A02CH-TL-E through Aetrix?

Please submit a Request for Quotation (RFQ) for 12A02CH-TL-E 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 12A02CH-TL-E reliable?

The price and inventory of 12A02CH-TL-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 12A02CH-TL-E is usually 5 days.

3.What payment methods are accepted for 12A02CH-TL-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 12A02CH-TL-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 12A02CH-TL-E?

12A02CH-TL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 12A02CH-TL-E 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 12A02CH-TL-E?

For technical support, including 12A02CH-TL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 12A02CH-TL-E requirements.

6.How does Aetrix verify that 12A02CH-TL-E is sourced from the original manufacturer or authorized distributors?

All 12A02CH-TL-E 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 12A02CH-TL-E meets industry standards.

7.What is the process for return or replacement of 12A02CH-TL-E?

All 12A02CH-TL-E units undergo pre-shipment inspection (PSI). If there is an issue with 12A02CH-TL-E, 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 12A02CH-TL-E part is unused and in its original packaging.

Return procedure for 12A02CH-TL-E:

1.Submit a request within 90 days.

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

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