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

onsemi CPH3114-TL-E

Name: CPH3114-TL-E
Brand: onsemi
SKU: CPH3114-TL-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CPH3114-TL-E

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

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

Datasheet:: CPH3114-TL-E.pdf

Description:: TRANS PNP 15V 1.5A 3-CPH

Quantity:: RFQ Add To RFQ list

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Product details

Overview

CPH3114-TL-E from onsemi is a PNP bipolar junction transistor (BJT) rated for −15 V V_CEO, −1.5 A continuous collector current, and featuring low V_CE(sat) of −120 mV at I_C = −750 mA / I_B = −15 mA. It delivers high-speed switching (t_on = 50 ns, t_f = 15 ns), f_T = 350 MHz, and operates in ultrasmall CPH3 (SC-59/SOT-23) package with 0.9 mm mounting height - used in compact relay and lamp driver circuits.

For engineers reviewing the CPH3114-TL-E datasheet, pinout, applications, or equivalent options, key selection criteria include verified V_CE(sat) performance at high I_C/I_B ratios, thermal dissipation capability on ceramic substrate (0.9 W), and JEDEC-compliant SC-59 footprint compatibility for space-constrained PCB layouts.

Technical Context

This PNP BJT employs MBIT process technology to achieve high current gain (h_FE = 200–560 at V_CE = −2 V, I_C = −100 mA) and fast switching dynamics. Its low saturation voltage and high f_T support efficient DC-to-DC control and pulse-driven loads.

The device is optimized for single-ended, low-voltage switching applications where base drive efficiency and thermal management on minimal-area substrates are critical - evidenced by its specified 0.9 W power dissipation on 600 mm² ceramic and −55°C to +150°C storage range.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−15 V - supports operation in −12 V rail systems with margin against transients
I_C (cont.)	−1.5 A - enables direct driving of small relays, LEDs, or logic-level MOSFET gates
V_CE(sat) @ I_C/I_B=50	−210 to −320 mV - reduces conduction loss and self-heating in high-duty-cycle switching
f_T	350 MHz - ensures stable gain at audio and low RF frequencies, supporting fast edge control
h_FE	200–560 - provides robust current amplification across temperature (−25°C to +75°C)
t_on/t_f	50 ns / 15 ns - enables PWM operation up to ~5 MHz with minimal overlap loss
P_C (ceramic)	0.9 W - allows sustained operation without heatsink in thermally managed SMT layouts

Pinout & Package

Package: CPH3 (JEITA/JEDEC compliant SC-59 / TO-236 / SOT-23), 3-pin surface-mount, 0.9 mm max height, 0.013 g mass.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control input requiring −15 mA to −30 mA for full saturation at I_C = −1.5 A
2	Emitter	Common return path tied to negative rail; must handle full load current and base current
3	Collector	Switched output node connected to load; reverse-biased during off-state to −15 V

Key Features

Feature	Design Value
Low V_CE(sat)	−120 mV typical at I_C = −750 mA - cuts conduction loss by >40% vs. standard PNP BJTs
High-speed switching	50 ns turn-on / 15 ns fall time - supports clean digital interface timing and reduced EMI
Ultrasmall CPH3 package	0.9 mm profile - enables stacking under connectors or placement in tight board cavities
High allowable power dissipation	0.9 W on ceramic substrate - permits higher ambient operation without derating in industrial modules
MBIT process technology	Improved h_FE consistency and f_T stability over temperature - simplifies bias design

Applications

Relay Drivers	Lamp Drivers
Use Scenario: Driving 12 V, 500 mA electromagnetic relays in PLC I/O modules. IC Role / Device Role / Timing Role: PNP switch controlling relay coil current with fast turn-off to suppress back-EMF spikes. Use Value: Low V_CE(sat) minimizes coil voltage drop; fast t_f reduces arcing and contact wear.	Use Scenario: Switching automotive dashboard LED clusters (12 V, 300 mA per string). IC Role / Device Role / Timing Role: Constant-current sink via emitter-follower configuration with current-limiting resistor. Use Value: High h_FE ensures stable current regulation across temperature; low V_CE(sat) preserves forward voltage headroom.
Motor Drivers	Flash Circuits
Use Scenario: H-bridge high-side switch for 5 V brushed DC micro-motors in portable medical devices. IC Role / Device Role / Timing Role: PNP-based half-bridge upper switch enabling bidirectional control with logic-level gate drive. Use Value: Fast switching prevents shoot-through; compact CPH3 footprint saves board area near motor terminals.	Use Scenario: Triggering xenon flash tubes in industrial inspection cameras using pulsed −1.5 A discharge. IC Role / Device Role / Timing Role: High-current pulse switch activated by microcontroller GPIO with active base control. Use Value: 3 A pulse rating (I_CP) and low storage time (t_stg = 90 ns) ensure precise flash timing and repeatable energy delivery.

Relay Drivers

Lamp Drivers

Use Scenario: Driving 12 V, 500 mA electromagnetic relays in PLC I/O modules.

IC Role / Device Role / Timing Role: PNP switch controlling relay coil current with fast turn-off to suppress back-EMF spikes.

Use Value: Low V_CE(sat) minimizes coil voltage drop; fast t_f reduces arcing and contact wear.

Use Scenario: Switching automotive dashboard LED clusters (12 V, 300 mA per string).

IC Role / Device Role / Timing Role: Constant-current sink via emitter-follower configuration with current-limiting resistor.

Use Value: High h_FE ensures stable current regulation across temperature; low V_CE(sat) preserves forward voltage headroom.

Motor Drivers

Flash Circuits

Use Scenario: H-bridge high-side switch for 5 V brushed DC micro-motors in portable medical devices.

IC Role / Device Role / Timing Role: PNP-based half-bridge upper switch enabling bidirectional control with logic-level gate drive.

Use Value: Fast switching prevents shoot-through; compact CPH3 footprint saves board area near motor terminals.

Use Scenario: Triggering xenon flash tubes in industrial inspection cameras using pulsed −1.5 A discharge.

IC Role / Device Role / Timing Role: High-current pulse switch activated by microcontroller GPIO with active base control.

Use Value: 3 A pulse rating (I_CP) and low storage time (t_stg = 90 ns) ensure precise flash timing and repeatable energy delivery.

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/I_B = 10 - lower current, higher saturation loss	Suitable for signal-level inversion or low-power logic interfacing, not high-current loads	Select when voltage margin > −15 V is required and load current < 200 mA
DXT3906-7-F	V_CEO = −40 V, I_C = −2 A, V_CE(sat) = −300 mV @ I_C/I_B = 20 - higher voltage rating but larger SOT-23-3 package (1.3 mm height)	Acceptable for same PCB layout if height tolerance allows; better for −24 V systems	Select when higher voltage headroom or slightly higher current is needed and 0.4 mm extra height is acceptable

Compared with CPH3114-TL-E, MMBT3906LT1G trades current capacity and saturation performance for wider voltage range, while DXT3906-7-F offers higher voltage and current ratings at the cost of increased mounting height - making CPH3114-TL-E optimal for space- and efficiency-critical −12 V/−1.5 A switching.

Availability

CPH3114-TL-E is available at Aetrix Electronics and suitable for relay drivers, lamp drivers, motor drivers, and flash circuits requiring stable component supply, Pb-free compliance, and consistent tape-and-reel packaging (3,000 pcs./reel).

Supply support for CPH3114-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 for automotive, industrial, cloud, and IoT applications.

The CPH3114-TL-E belongs to onsemi's general-purpose PNP BJT product line, engineered for high-efficiency, miniaturized switching in consumer, industrial, and automotive subsystems where low V_CE(sat) and fast response are essential.

FAQ

What is the maximum continuous collector current rating for CPH3114-TL-E?

The CPH3114-TL-E has a maximum continuous collector current (I_C) rating of −1.5 A at T_a = 25°C when mounted on a ceramic substrate (600 mm² × 0.8 mm). Derating applies above 25°C ambient, with PC dropping linearly to zero at 150°C junction temperature. This rating enables reliable use in relay and lamp driver applications without forced cooling.

Does CPH3114-TL-E support high-speed switching applications?

Yes, the CPH3114-TL-E supports high-speed switching with documented t_on = 50 ns, t_stg = 90 ns, and t_f = 15 ns under standard test conditions. Its 350 MHz f_T and low output capacitance (C_ob = 17 pF at V_CB = −10 V) make it suitable for PWM-driven loads up to several megahertz, including flash tube triggering and motor commutation control.

What package type does CPH3114-TL-E use, and is it JEDEC-compliant?

The CPH3114-TL-E uses the CPH3 package, which is identical to JEITA SC-59, JEDEC TO-236, and industry-standard SOT-23. Its dimensions (2.9 mm × 1.6 mm × 0.9 mm max) and 0.95 mm lead pitch match SOT-23 footprints, enabling drop-in replacement in existing designs with compatible land patterns and reflow profiles.

What is the typical V_CE(sat) of CPH3114-TL-E under common operating conditions?

The typical V_CE(sat) of CPH3114-TL-E is −120 mV at I_C = −750 mA and I_B = −15 mA (I_C/I_B = 50), and −210 mV at I_C = −1.5 A and I_B = −30 mA (I_C/I_B = 50). These values reflect its low-saturation design, reducing power loss and thermal stress in high-current switching nodes.

Is CPH3114-TL-E RoHS-compliant and halogen-free?

Yes, CPH3114-TL-E is Pb-free and RoHS-compliant, as confirmed by the "Pb Free" marking in the ordering information and onsemi's official documentation. It meets JEDEC J-STD-609 Category 1 for halogen content, making it suitable for environmentally regulated industrial and consumer electronics manufacturing.

CPH3114-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):: 1.5 A

Voltage - Collector Emitter Breakdown (Max):: 15 V

Vce Saturation (Max) @ Ib, Ic:: 180mV @ 15mA, 750mA

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 200 @ 100mA, 2V

Power - Max:: 900 mW

Frequency - Transition:: 350MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 3-CPH

CPH3114-TL-E FAQ

1.How can I place an order for CPH3114-TL-E through Aetrix?

Please submit a Request for Quotation (RFQ) for CPH3114-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 CPH3114-TL-E reliable?

The price and inventory of CPH3114-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 CPH3114-TL-E is usually 5 days.

3.What payment methods are accepted for CPH3114-TL-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CPH3114-TL-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CPH3114-TL-E?

CPH3114-TL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CPH3114-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 CPH3114-TL-E?

For technical support, including CPH3114-TL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CPH3114-TL-E requirements.

6.How does Aetrix verify that CPH3114-TL-E is sourced from the original manufacturer or authorized distributors?

All CPH3114-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 CPH3114-TL-E meets industry standards.

7.What is the process for return or replacement of CPH3114-TL-E?

All CPH3114-TL-E units undergo pre-shipment inspection (PSI). If there is an issue with CPH3114-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 CPH3114-TL-E part is unused and in its original packaging.

Return procedure for CPH3114-TL-E:

1.Submit a request within 90 days.

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

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