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

onsemi CPH6122-TL-E

Name: CPH6122-TL-E
Brand: onsemi
SKU: CPH6122-TL-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CPH6122-TL-E

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: SOT-23-6 Thin, TSOT-23-6

Datasheet:: CPH6122-TL-E.pdf

Description:: TRANS PNP 30V 3A 6-CPH

Quantity:: RFQ Add To RFQ list

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Product details

Overview

CPH6122-TL-E from onsemi is a PNP bipolar junction transistor (BJT) rated for −30 V V_CEO, −3 A I_C, and low −120 mV typical V_CE(sat) at I_C = −1.5 A / I_B = −75 mA, optimized for high-speed switching in compact relay and lamp driver circuits.

For engineers reviewing the CPH6122-TL-E datasheet, pinout, applications, or equivalent options, key selection criteria include verified V_CE(sat) performance at high current, f_T = 400 MHz gain-bandwidth, SC-74 (CPH6) package footprint, and thermal dissipation capability of 1.3 W on ceramic board.

Technical Context

This PNP BJT employs onsemi's MBIT process to achieve high h_FE (200–560 at V_CE = −2 V, I_C = −500 mA) and fast switching with t_on = 50 ns, t_stg = 270 ns, and t_f = 27 ns under defined test conditions.

It operates within −55°C to +150°C storage range and supports continuous collector current up to −3 A with pulse rating of −5 A, while maintaining low output capacitance (C_ob = 25 pF at V_CB = −10 V, f = 1 MHz) for minimal switching loss.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−30 V - Maximum safe collector-emitter voltage before breakdown; defines rail compatibility in negative-rail switching stages.
I_C	−3 A - Continuous DC collector current handling; supports motor and solenoid loads without forced cooling.
V_CE(sat) (typ)	−120 mV at I_C = −1.5 A / I_B = −75 mA - Low saturation voltage reduces conduction loss and self-heating in high-duty-cycle drivers.
f_T	400 MHz - Gain-bandwidth product enabling reliable operation up to ~100 MHz switching frequencies with adequate drive.
h_FE	200–560 at V_CE = −2 V, I_C = −500 mA - Wide DC current gain range ensures stable biasing across production lots and temperature.
P_C	1.3 W on 600 mm² × 0.8 mm ceramic board - Thermal limit defining maximum power-handling capacity in standard SMT mounting.
C_ob	25 pF at V_CB = −10 V, 1 MHz - Low output capacitance minimizes Miller effect and improves turn-off speed in hard-switched topologies.

Pinout & Package

CPH6122-TL-E is housed in the ultrasmall CPH6 package (JEITA/JEDEC: SC-74, SOT-26, SOT-457), measuring 2.9 mm × 1.6 mm × 0.9 mm (max height), with 0.95 mm lead pitch and 0.015 g mass.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 5, 6	Collector	Four parallel collector terminals reduce bond-wire inductance and improve current sharing in high-pulse applications.
3	Base	Sole base connection; requires ≥−75 mA drive for full saturation at −1.5 A load, supporting direct MCU GPIO or logic-level driver interface.
4	Emitter	Single emitter terminal; serves as common reference node for PNP switching-typically tied to system ground or positive rail depending on topology.

Key Features

Feature	Design Value
MBIT process technology	Enables high h_FE consistency and low V_CE(sat) across temperature, improving bias stability in automotive and industrial ambient ranges.
Ultrasmall CPH6 package	0.9 mm max height and 2.9 × 1.6 mm footprint enable space-constrained PCB layouts in portable and wearable end equipment.
High-speed switching	50 ns turn-on, 27 ns fall time, and 270 ns storage time support >1 MHz PWM control in LED and motor drivers without excessive switching loss.
High allowable power dissipation	1.3 W rating on ceramic board allows sustained −2 A operation without heatsink in thermally managed designs.
Low V_CE(sat) at high current	−120 mV typical at I_C = −1.5 A / I_B = −75 mA enables <200 mW conduction loss per device-critical for battery-powered relay interfaces.

Applications

Relay Driver Circuits	Lamp Driver Modules
Use Scenario: Driving 12 V/24 V electromagnetic relays in PLC I/O modules and HVAC controllers. IC Role / Device Role / Timing Role: PNP switch controlling relay coil current path from positive rail to ground, activated by microcontroller GPIO. Use Value: Low V_CE(sat) minimizes coil voltage drop and ensures reliable relay pull-in; high I_C rating supports coils up to 3 A hold current.	Use Scenario: Switching incandescent, halogen, or resistive LED arrays in automotive interior lighting and signage. IC Role / Device Role / Timing Role: High-side PNP switch regulating current flow to lamp anodes in constant-voltage configurations. Use Value: Fast t_f = 27 ns enables flicker-free PWM dimming up to 5 kHz; low thermal resistance supports burst-mode operation.
Motor Driver Stages	Flash Circuit Drivers
Use Scenario: Controlling small DC brush motors (e.g., fans, actuators) in medical devices and office automation. IC Role / Device Role / Timing Role: Single-stage PNP switch in H-bridge half-bridge or direction-controlled unidirectional drive. Use Value: 400 MHz f_T ensures stable gain during transient load changes; high I_CP = −5 A accommodates motor startup surges.	Use Scenario: Triggering xenon flash tubes or high-current LED strobes in camera modules and safety beacons. IC Role / Device Role / Timing Role: Fast-turn-on PNP switch discharging capacitor energy into flash load via emitter-follower or grounded-load configuration. Use Value: 50 ns t_on and low C_ob ensure precise flash timing control; robust V_(BR)CEO = −30 V withstands capacitor recharge transients.

Relay Driver Circuits

Lamp Driver Modules

Use Scenario: Driving 12 V/24 V electromagnetic relays in PLC I/O modules and HVAC controllers.

IC Role / Device Role / Timing Role: PNP switch controlling relay coil current path from positive rail to ground, activated by microcontroller GPIO.

Use Value: Low V_CE(sat) minimizes coil voltage drop and ensures reliable relay pull-in; high I_C rating supports coils up to 3 A hold current.

Use Scenario: Switching incandescent, halogen, or resistive LED arrays in automotive interior lighting and signage.

IC Role / Device Role / Timing Role: High-side PNP switch regulating current flow to lamp anodes in constant-voltage configurations.

Use Value: Fast t_f = 27 ns enables flicker-free PWM dimming up to 5 kHz; low thermal resistance supports burst-mode operation.

Motor Driver Stages

Flash Circuit Drivers

Use Scenario: Controlling small DC brush motors (e.g., fans, actuators) in medical devices and office automation.

IC Role / Device Role / Timing Role: Single-stage PNP switch in H-bridge half-bridge or direction-controlled unidirectional drive.

Use Value: 400 MHz f_T ensures stable gain during transient load changes; high I_CP = −5 A accommodates motor startup surges.

Use Scenario: Triggering xenon flash tubes or high-current LED strobes in camera modules and safety beacons.

IC Role / Device Role / Timing Role: Fast-turn-on PNP switch discharging capacitor energy into flash load via emitter-follower or grounded-load configuration.

Use Value: 50 ns t_on and low C_ob ensure precise flash timing control; robust V_(BR)CEO = −30 V withstands capacitor recharge transients.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBT3906LT1G	Lower I_C (−200 mA), higher V_CE(sat) (−400 mV typ), smaller SOT-23 package	Suitable only for signal-level or low-power switching-not for >500 mA loads	Select when board space is critical and load current remains below 200 mA.
PN2907A	TO-92 through-hole, I_C = −600 mA, V_CE(sat) = −1.6 V at I_C = −150 mA	Requires manual assembly; unsuitable for automated SMT production or high-current density layouts	Choose only for prototyping or legacy through-hole systems where rework tolerance is prioritized over performance.

Compared with CPH6122-TL-E, MMBT3906LT1G offers smaller size but lacks the current drive and low saturation needed for power switching, while PN2907A provides mechanical robustness but sacrifices both speed and thermal efficiency in modern SMT designs.

Availability

CPH6122-TL-E is available at Aetrix Electronics and suitable for relay drivers, lamp drivers, and motor drivers requiring stable component supply in industrial control, automotive body electronics, and consumer appliance designs.

Supply support for CPH6122-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 specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and IoT applications.

The CPH6122-TL-E belongs to onsemi's high-performance discrete BJT family, engineered specifically for miniaturized, high-reliability switching in space-constrained power interface circuits.

FAQ

What is the maximum continuous collector current rating for CPH6122-TL-E?

The CPH6122-TL-E has a maximum continuous collector current (I_C) rating of −3 A at T_a = 25°C when mounted on a specified ceramic board (600 mm² × 0.8 mm). This rating assumes proper thermal management; derating is required above 25°C ambient per the PC–Ta curve in the datasheet. The CPH6122-TL-E must not exceed this limit in steady-state operation to ensure reliability and avoid junction overheating.

Is CPH6122-TL-E still in active production?

No-CPH6122-TL-E is officially discontinued per onsemi documentation. The datasheet states "DISCONTINUED" and directs users to contact an onsemi representative for alternatives or last-time-buy options. Aetrix Electronics maintains limited legacy stock and supports design migration to functionally aligned replacements such as the NSS12601CF8T1G or ZXTP2025F.

What does the 'TL-E' suffix indicate in CPH6122-TL-E?

The 'TL' denotes embossed tape-and-reel packaging (3,000 pcs./reel), and 'E' indicates compliance with RoHS and Pb-free requirements. This marking aligns with onsemi's ordering nomenclature for environmentally compliant, SMT-ready discrete transistors. The CPH6122-TL-E uses matte tin plating on leads and meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1).

Can CPH6122-TL-E be used in linear amplifier applications?

The CPH6122-TL-E is characterized and optimized for switching operation-not linear amplification. Its h_FE variation across I_C, wide V_CE(sat) spread, and lack of linearity specifications (e.g., distortion, f_T flatness) make it unsuitable for analog gain stages. For amplification, onsemi recommends dedicated RF or audio BJTs like the MMBT5551 or BC846 series. The CPH6122-TL-E should be used strictly as a saturated switch.

What is the recommended PCB land pattern for CPH6122-TL-E?

The recommended land pattern for CPH6122-TL-E follows the CPH6 outline: 2.4 mm × 1.4 mm pad length/width with 0.95 mm center-to-center pitch and 0.6 mm solder mask opening. Thermal relief is advised for pins 1, 2, 5, and 6 (collectors) to balance solderability and heat spreading. The CPH6122-TL-E datasheet (page No.7225-5/6) provides exact dimensions and stencil recommendations for optimal reflow yield.

CPH6122-TL-E Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: SOT-23-6 Thin, TSOT-23-6

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 3 A

Voltage - Collector Emitter Breakdown (Max):: 30 V

Vce Saturation (Max) @ Ib, Ic:: 180mV @ 75mA, 1.5A

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

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

Power - Max:: 1.3 W

Frequency - Transition:: 400MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 6-CPH

CPH6122-TL-E FAQ

1.How can I place an order for CPH6122-TL-E through Aetrix?

Please submit a Request for Quotation (RFQ) for CPH6122-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 CPH6122-TL-E reliable?

The price and inventory of CPH6122-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 CPH6122-TL-E is usually 5 days.

3.What payment methods are accepted for CPH6122-TL-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CPH6122-TL-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CPH6122-TL-E?

CPH6122-TL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CPH6122-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 CPH6122-TL-E?

For technical support, including CPH6122-TL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CPH6122-TL-E requirements.

6.How does Aetrix verify that CPH6122-TL-E is sourced from the original manufacturer or authorized distributors?

All CPH6122-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 CPH6122-TL-E meets industry standards.

7.What is the process for return or replacement of CPH6122-TL-E?

All CPH6122-TL-E units undergo pre-shipment inspection (PSI). If there is an issue with CPH6122-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 CPH6122-TL-E part is unused and in its original packaging.

Return procedure for CPH6122-TL-E:

1.Submit a request within 90 days.

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

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