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

onsemi CPH3106-TL-E

Name: CPH3106-TL-E
Brand: onsemi
SKU: CPH3106-TL-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CPH3106-TL-E

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

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

Datasheet:: CPH3106-TL-E.pdf

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

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Product details

Overview

CPH3106-TL-E from onsemi is a PNP bipolar junction transistor rated for −12 V V_CEO, −3 A I_C, and −165 mV V_CE(sat) at I_C = −1.5 A / I_B = −30 mA, optimized for high-speed switching in compact relay and lamp driver circuits.

For engineers reviewing the CPH3106-TL-E datasheet, pinout, applications, or equivalent options, key selection criteria include its ultrasmall CPH3 package (0.9 mm height), 280 MHz f_T, low saturation voltage, and −15 V V_CBO rating for robust off-state blocking in industrial control interfaces.

Technical Context

This PNP BJT employs onsemi's MBIT process to achieve high current gain (h_FE = 200–560 at V_CE = −2 V, I_C = −500 mA) and fast switching performance with t_on = 30 ns, t_stg = 90 ns, and t_f = 10 ns under defined test conditions.

It operates within a −55 °C to +150 °C storage temperature range and supports continuous collector dissipation of 0.9 W when mounted on a 600 mm² × 0.8 mm ceramic board, with thermal derating above T_a = 25 °C per the PC–T_a curve.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−12 V: Maximum allowable collector-to-emitter voltage before breakdown in common-emitter configuration.
I_C	−3 A: Continuous DC collector current capability without thermal runaway under specified mounting conditions.
V_CE(sat)	−110 to −165 mV: Low saturation voltage ensures minimal power loss and heat generation in saturated-switch applications.
f_T	280 MHz: Gain-bandwidth product enables reliable operation in high-frequency switching up to ~100 MHz practical designs.
h_FE	200–560: DC current gain range at V_CE = −2 V, I_C = −500 mA supports stable base drive design across production lots.
C_ob	36 pF: Output capacitance at V_CB = −10 V, f = 1 MHz directly impacts switching speed and EMI in high-dV/dt environments.
t_f	10 ns: Fast fall time reduces transition losses and improves efficiency in PWM-driven loads like solenoids and LEDs.

Pinout & Package

CPH3106-TL-E is housed in the CPH3 package (JEITA/SC-59, JEDEC/TO-236, SOT-23 compatible), measuring 2.9 mm × 1.6 mm × 0.9 mm with 0.95 mm lead pitch and 0.013 g mass. Mounting height is 0.9 mm, enabling ultra-low-profile PCB layouts.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control terminal accepting forward-biased current to turn on the PNP transistor; requires negative voltage relative to emitter.
2	Emitter	Current source terminal; connected to higher potential (e.g., V_CC) in typical high-side switch configurations.
3	Collector	Current sink terminal; delivers load current to ground or lower-potential node when transistor is saturated.

Key Features

Feature	Design Value
Ultrasmall CPH3 package	0.9 mm height and 2.9 × 1.6 mm footprint enable space-constrained designs such as portable motor drivers and wearable lamp controls.
Low V_CE(sat)	−110 to −165 mV at I_C = −1.5 A reduces conduction loss by >40% vs. standard PNP transistors with >300 mV saturation.
High-speed switching	30 ns turn-on, 90 ns storage, and 10 ns fall time support PWM frequencies beyond 5 MHz in discrete gate-drive stages.
High allowable power dissipation	0.9 W on ceramic board allows sustained −3 A operation without heatsinking in thermally managed industrial modules.
MBIT process technology	Enables tight h_FE distribution (200–560) and low Cob (36 pF), improving consistency and noise immunity in analog-switching hybrids.

Applications

Relay Drivers	Lamp Drivers
Use Scenario: Driving electromagnetic relays in programmable logic controllers with 24 V DC coils requiring ≥2 A peak current. IC Role / Device Role / Timing Role: High-current PNP switch providing low-loss, fast turn-off to suppress coil back-EMF and reduce contact arcing. Use Value: −165 mV V_CE(sat) minimizes relay coil voltage drop, ensuring full actuation margin even at low supply voltages.	Use Scenario: Controlling incandescent and halogen indicator lamps in automotive dashboards and industrial HMI panels. IC Role / Device Role / Timing Role: Constant-current source or on/off switch regulating lamp brightness via PWM at 1–10 kHz. Use Value: 280 MHz f_T and 10 ns t_f eliminate visible flicker and support precise dimming resolution.
Motor Drivers	Flash Circuits
Use Scenario: Driving small brushed DC motors (e.g., cooling fans, actuators) in battery-powered IoT gateways. IC Role / Device Role / Timing Role: High-side switch controlling motor direction and braking via complementary NPN/PNP pairs. Use Value: −15 V V_CBO and −12 V V_CEO ratings tolerate inductive kickback spikes up to ±12 V without clamping diodes.	Use Scenario: Triggering xenon flash tubes in portable medical imaging devices and handheld barcode scanners. IC Role / Device Role / Timing Role: Fast-turning PNP switch discharging high-voltage capacitor banks into flash tube anodes. Use Value: 90 ns storage time enables precise flash duration control down to 50 μs with minimal timing jitter.

Relay Drivers

Lamp Drivers

Use Scenario: Driving electromagnetic relays in programmable logic controllers with 24 V DC coils requiring ≥2 A peak current.

IC Role / Device Role / Timing Role: High-current PNP switch providing low-loss, fast turn-off to suppress coil back-EMF and reduce contact arcing.

Use Value: −165 mV V_CE(sat) minimizes relay coil voltage drop, ensuring full actuation margin even at low supply voltages.

Use Scenario: Controlling incandescent and halogen indicator lamps in automotive dashboards and industrial HMI panels.

IC Role / Device Role / Timing Role: Constant-current source or on/off switch regulating lamp brightness via PWM at 1–10 kHz.

Use Value: 280 MHz f_T and 10 ns t_f eliminate visible flicker and support precise dimming resolution.

Motor Drivers

Flash Circuits

Use Scenario: Driving small brushed DC motors (e.g., cooling fans, actuators) in battery-powered IoT gateways.

IC Role / Device Role / Timing Role: High-side switch controlling motor direction and braking via complementary NPN/PNP pairs.

Use Value: −15 V V_CBO and −12 V V_CEO ratings tolerate inductive kickback spikes up to ±12 V without clamping diodes.

Use Scenario: Triggering xenon flash tubes in portable medical imaging devices and handheld barcode scanners.

IC Role / Device Role / Timing Role: Fast-turning PNP switch discharging high-voltage capacitor banks into flash tube anodes.

Use Value: 90 ns storage time enables precise flash duration control down to 50 μs with minimal timing jitter.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBT3906LT1G	Lower I_C (−200 mA), higher V_CE(sat) (−400 mV), SOT-23 package but not identical pinout (1=Emitter, 2=Base, 3=Collector).	Suitable only for signal-level switching; insufficient for −1.5 A load currents.	Select only for low-power biasing or logic inversion where current < 100 mA.
DXT3906-7-F	Higher I_C (−500 mA), same SOT-23 footprint, but V_CE(sat) = −300 mV at I_C = −100 mA - no −1.5 A rating verified.	Acceptable for medium-current lamp drivers but not for relay or motor loads demanding < −100 mV saturation.	Prefer for cost-sensitive designs with moderate current needs and relaxed V_CE(sat) requirements.

Compared with CPH3106-TL-E, MMBT3906LT1G and DXT3906-7-F offer smaller current handling and higher saturation voltage, making them unsuitable as direct replacements in −1.5 A relay or motor driver roles - CPH3106-TL-E remains optimal where low-loss, high-current PNP switching in an ultrasmall package is required.

Availability

CPH3106-TL-E is available at Aetrix Electronics and suitable for relay drivers, lamp drivers, and motor drivers requiring stable component supply, RoHS-compliant packaging, and consistent parametric performance across production batches.

Supply support for CPH3106-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 electronics, delivering silicon solutions for automotive, industrial, cloud, and IoT applications.

The CPH3106-TL-E belongs to onsemi's CPH-series of high-performance PNP transistors, designed specifically for miniaturized, high-reliability switching in space-constrained industrial and consumer control systems.

FAQ

What is the maximum continuous collector current rating for CPH3106-TL-E?

The CPH3106-TL-E is rated for a maximum continuous collector current (I_C) of −3 A at T_a = 25 °C when mounted on a 600 mm² × 0.8 mm ceramic board. Derating applies above ambient temperature, with full-rated current maintained only under specified thermal conditions. The CPH3106-TL-E datasheet confirms this value in the Absolute Maximum Ratings table.

Does CPH3106-TL-E support high-speed switching applications?

Yes, the CPH3106-TL-E supports high-speed switching with measured t_on = 30 ns, t_stg = 90 ns, and t_f = 10 ns under standardized test conditions. Its 280 MHz f_T and low output capacitance (C_ob = 36 pF) further validate suitability for PWM and pulse-driven loads. These values are explicitly specified in the CPH3106-TL-E Electrical Characteristics table.

What is the pin configuration of CPH3106-TL-E?

The CPH3106-TL-E uses a three-pin CPH3 package with pin 1 = Base, pin 2 = Emitter, and pin 3 = Collector - confirmed in the "Electrical Connection" diagram and "Marking" section of the official CPH3106-TL-E datasheet. This differs from standard SOT-23 pinouts and must be verified during PCB layout.

Is CPH3106-TL-E RoHS compliant and lead-free?

Yes, CPH3106-TL-E is Pb-free and RoHS compliant, as indicated in the Ordering Information section ("Pb Free") and Product & Package Information. The "-E" suffix in the part number denotes lead-free termination, and the device meets EU Directive 2011/65/EU requirements without exemptions.

What is the typical V_CE(sat) of CPH3106-TL-E at rated current?

The typical V_CE(sat) of CPH3106-TL-E is −110 mV at I_C = −1.5 A and I_B = −30 mA, with a maximum of −165 mV under the same conditions. This low saturation voltage is a key differentiator for efficiency-critical switching applications and is documented in the CPH3106-TL-E Electrical Characteristics table.

CPH3106-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):: 3 A

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

Vce Saturation (Max) @ Ib, Ic:: 165mV @ 30mA, 1.5A

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 200 @ 500mA, 2V

Power - Max:: 900 mW

Frequency - Transition:: 280MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 3-CPH

CPH3106-TL-E FAQ

1.How can I place an order for CPH3106-TL-E through Aetrix?

Please submit a Request for Quotation (RFQ) for CPH3106-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 CPH3106-TL-E reliable?

The price and inventory of CPH3106-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 CPH3106-TL-E is usually 5 days.

3.What payment methods are accepted for CPH3106-TL-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CPH3106-TL-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CPH3106-TL-E?

CPH3106-TL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CPH3106-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 CPH3106-TL-E?

For technical support, including CPH3106-TL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CPH3106-TL-E requirements.

6.How does Aetrix verify that CPH3106-TL-E is sourced from the original manufacturer or authorized distributors?

All CPH3106-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 CPH3106-TL-E meets industry standards.

7.What is the process for return or replacement of CPH3106-TL-E?

All CPH3106-TL-E units undergo pre-shipment inspection (PSI). If there is an issue with CPH3106-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 CPH3106-TL-E part is unused and in its original packaging.

Return procedure for CPH3106-TL-E:

1.Submit a request within 90 days.

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

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