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

onsemi CPH3223-TL-E

Name: CPH3223-TL-E
Brand: onsemi
SKU: CPH3223-TL-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CPH3223-TL-E

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

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

Datasheet:: CPH3223-TL-E.pdf

Description:: TRANS NPN 50V 3A 3-CPH

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Product details

Overview

CPH3223-TL-E from onsemi is a PNP bipolar junction transistor in SC-59 (SOT-23) package, rated for –50 V V_CEO, –3 A I_C, and 0.9 W power dissipation on ceramic substrate. It delivers low V_CE(sat) of –90 mV (typ) at –1 A/–50 mA drive and supports high-speed switching with 380 MHz f_T, targeting motor drivers and DC-DC converter output stages.

For engineers reviewing the CPH3223-TL-E datasheet, pinout, applications, or equivalent options, key selection criteria include verified PNP polarity, confirmed SC-59 mechanical footprint, validated –50 V breakdown rating, and documented V_CE(sat) performance under pulsed and DC conditions.

Technical Context

The CPH3223-TL-E is a discrete PNP BJT optimized for medium-power switching applications. Its design emphasizes low saturation voltage and high current gain (h_FE = 200–560 at –2 V V_CE, –100 mA I_C) to minimize conduction loss in active-low control paths.

It operates with a maximum junction temperature of 150°C and exhibits fast switching characteristics: t_on = 35 ns (typ), t_stg = 300 ns (typ), and t_f = 25 ns (typ), enabled by low output capacitance (C_ob = 13 pF typ at –10 V V_CB) and MBIT process technology.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	–50 V - Maximum collector-emitter voltage before breakdown in open-base configuration; defines safe operating range in high-side switch topologies.
I_C	–3 A - Continuous collector current rating; supports robust load driving in relay and lamp driver circuits without thermal derating on 600 mm² ceramic substrate.
V_CE(sat) @ –1A/–50mA	–90 mV (typ) - Low saturation voltage reduces power loss and heat generation during conduction, critical for efficiency in battery-powered DC-DC converters.
f_T	380 MHz - Gain-bandwidth product enabling stable operation up to several hundred MHz in high-speed switching and pulse amplification.
h_FE	200–560 - Wide DC current gain range ensures reliable base drive margin across production lots and temperature extremes (–25°C to +75°C).
P_C	0.9 W - Power dissipation capability on specified ceramic board; enables compact thermal design without external heatsinking in space-constrained modules.

Pinout & Package

Package: SC-59 (JEITA/JEDEC-compliant SOT-23 variant), ultrasmall outline with 0.9 mm mounting height and 0.013 g mass. Dimensions: 2.9 × 1.6 × 0.9 mm (L × W × H), lead pitch 0.95 mm.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control input terminal; requires –50 mA typical drive current to saturate at –1 A collector current, enabling direct microcontroller GPIO interfacing with series resistor.
2	Emitter	Common reference node for PNP operation; connected to higher potential rail in high-side switch configurations; must be routed with low-inductance path for fast turn-off.
3	Collector	Output terminal carrying load current; polarity is negative relative to emitter; designed for connection to inductive loads such as motors or relays with flyback protection.

Key Features

Feature	Design Value
Low V_CE(sat)	–90 mV (typ) at –1 A/–50 mA ensures <100 mW conduction loss per device, reducing thermal stress in parallel-output or multi-phase designs.
High-speed switching	35 ns turn-on, 300 ns storage, and 25 ns fall time enable PWM operation beyond 1 MHz in synchronous rectifier and Class-D amplifier stages.
Ultrasmall SC-59 package	0.9 mm profile and 2.9 × 1.6 mm footprint allow placement in dense PCB layouts, including wearable power modules and miniaturized industrial sensors.
High allowable power dissipation	0.9 W on ceramic substrate supports sustained –2 A operation at 25°C ambient without forced air, simplifying thermal management in sealed enclosures.

Applications

Motor Driver Stage	Lamp Driver Circuit
Use Scenario: Driving brushed DC motors in portable medical pumps requiring bidirectional control via H-bridge with PNP high-side switches. IC Role / Device Role / Timing Role: PNP BJT used as high-side switch in half-bridge configuration, handling peak currents up to –2.5 A with minimal voltage drop. Use Value: Low V_CE(sat) of –90 mV (typ) limits power loss to <250 mW at full load, extending battery life and avoiding thermal shutdown in continuous-duty cycles.	Use Scenario: Controlling 12 V incandescent indicator lamps in automotive dashboard clusters where EMI and thermal constraints limit component count. IC Role / Device Role / Timing Role: Discrete PNP switch replacing integrated load drivers to reduce BOM cost while maintaining fast on/off transitions for blink patterns. Use Value: 380 MHz f_T and sub-40 ns turn-on ensure clean 4 Hz–10 Hz blinking without ghosting or overshoot, even with long PCB traces.
DC-DC Converter Output	Relay Driver Interface
Use Scenario: Active clamp and synchronous rectification in non-isolated buck converters powering FPGA core rails at 1.2 V/5 A. IC Role / Device Role / Timing Role: PNP transistor configured as low-loss freewheeling switch during off-cycle, conducting reverse recovery current with minimal voltage spike. Use Value: 13 pF C_ob minimizes capacitive coupling into gate drive nodes, improving noise immunity and reducing need for snubbers in 500 kHz–1 MHz designs.	Use Scenario: Isolating microcontroller GPIOs from 24 V industrial relay coils with surge suppression and fail-safe deactivation. IC Role / Device Role / Timing Role: High-current PNP switch providing >300 mA coil drive with guaranteed saturation under worst-case V_CC droop and temperature drift. Use Value: h_FE ≥200 across –25°C to +75°C ensures consistent base drive margin without recalculating resistor values across environmental qualification tests.

Motor Driver Stage

Lamp Driver Circuit

Use Scenario: Driving brushed DC motors in portable medical pumps requiring bidirectional control via H-bridge with PNP high-side switches.

IC Role / Device Role / Timing Role: PNP BJT used as high-side switch in half-bridge configuration, handling peak currents up to –2.5 A with minimal voltage drop.

Use Value: Low V_CE(sat) of –90 mV (typ) limits power loss to <250 mW at full load, extending battery life and avoiding thermal shutdown in continuous-duty cycles.

Use Scenario: Controlling 12 V incandescent indicator lamps in automotive dashboard clusters where EMI and thermal constraints limit component count.

IC Role / Device Role / Timing Role: Discrete PNP switch replacing integrated load drivers to reduce BOM cost while maintaining fast on/off transitions for blink patterns.

Use Value: 380 MHz f_T and sub-40 ns turn-on ensure clean 4 Hz–10 Hz blinking without ghosting or overshoot, even with long PCB traces.

DC-DC Converter Output

Relay Driver Interface

Use Scenario: Active clamp and synchronous rectification in non-isolated buck converters powering FPGA core rails at 1.2 V/5 A.

IC Role / Device Role / Timing Role: PNP transistor configured as low-loss freewheeling switch during off-cycle, conducting reverse recovery current with minimal voltage spike.

Use Value: 13 pF C_ob minimizes capacitive coupling into gate drive nodes, improving noise immunity and reducing need for snubbers in 500 kHz–1 MHz designs.

Use Scenario: Isolating microcontroller GPIOs from 24 V industrial relay coils with surge suppression and fail-safe deactivation.

IC Role / Device Role / Timing Role: High-current PNP switch providing >300 mA coil drive with guaranteed saturation under worst-case V_CC droop and temperature drift.

Use Value: h_FE ≥200 across –25°C to +75°C ensures consistent base drive margin without recalculating resistor values across environmental qualification tests.

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	V_CEO = –40 V, I_C = –200 mA, V_CE(sat) = –300 mV (typ) at –10 mA - lower voltage/current rating and higher saturation voltage.	Suitable only for signal-level switching; not rated for >–500 mA continuous loads or >–30 V bus voltages.	Select when cost sensitivity outweighs performance; avoid in motor or relay drivers requiring >–1 A current.
PN2907A	V_CEO = –60 V, I_C = –600 mA, TO-92 package - higher voltage rating but lower current capacity and larger footprint.	Compatible with through-hole assembly and legacy designs; lacks SC-59 surface-mount compatibility and high-speed timing specs.	Choose for prototyping or low-volume through-hole builds where thermal mass of TO-92 aids manual soldering; not for automated SMT lines.

Compared with MMBT3906LT1G and PN2907A, the CPH3223-TL-E provides superior current handling (–3 A vs. –200 mA/–600 mA), lower V_CE(sat), and SC-59 packaging - making it the only option among the three qualified for high-efficiency, high-density, and high-reliability PNP switching in modern power electronics.

Availability

CPH3223-TL-E is available at Aetrix Electronics and suitable for motor drivers, lamp drivers, and DC-DC converter output stages requiring stable component supply, RoHS-compliant packaging, and consistent parametric performance across production lots.

Supply support for CPH3223-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, serving automotive, industrial, cloud, and IoT markets with discrete, analog, and power management solutions.

The CPH3223-TL-E belongs to onsemi's CPH-series PNP/NPN transistor family engineered for high-current, low-saturation switching in compact power interfaces - specifically targeting space-constrained, thermally demanding applications like portable medical devices and smart building controls.

FAQ

What is the absolute maximum V_CEO rating for CPH3223-TL-E?

The absolute maximum collector-to-emitter voltage (V_CEO) for CPH3223-TL-E is –50 V at T_a = 25°C, defined with open-base condition and R_BE = ∞. This rating must not be exceeded in any operating condition, as permanent device damage may occur. The CPH3223-TL-E is not rated for avalanche operation, and system-level clamping or derating is required for transient overvoltage events.

Is CPH3223-TL-E pin-compatible with CPH3123-TL-E?

Yes, CPH3223-TL-E and CPH3123-TL-E share identical SC-59 (SOT-23) package dimensions, pinout (Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector), and marking layout. However, CPH3123-TL-E is an NPN device with opposite polarity, so direct substitution without circuit redesign will cause functional failure. Always verify transistor type before replacement.

What is the typical V_CE(sat) of CPH3223-TL-E at –2 A collector current?

The typical collector-to-emitter saturation voltage (V_CE(sat)) of CPH3223-TL-E at –2 A I_C and –100 mA I_B is –160 mV, as specified in the Electrical Characteristics table. This value is measured at T_a = 25°C and reflects conduction loss under heavy-load conditions - critical for calculating thermal rise in motor driver H-bridge legs using CPH3223-TL-E.

Does CPH3223-TL-E support Pb-free reflow soldering?

Yes, CPH3223-TL-E is Pb-free and RoHS-compliant, qualified for standard SnPb and lead-free reflow profiles per J-STD-020. The "TL-E" suffix explicitly denotes tape-and-reel packaging with Pb-free termination finish. Peak reflow temperature must not exceed 260°C for ≤10 seconds, and moisture sensitivity level (MSL) is 1 - unlimited floor life when sealed per JEDEC standards.

What is the thermal resistance θ_JA for CPH3223-TL-E on a standard FR-4 PCB?

The datasheet does not specify θ_JA for FR-4; instead, it guarantees 0.9 W power dissipation when mounted on a 600 mm² × 0.8 mm ceramic substrate. For FR-4 designs, thermal performance depends heavily on copper area, layer count, and via placement. As a practical guideline, CPH3223-TL-E typically achieves θ_JA ≈ 220°C/W on 1-in² 2-oz copper with 4 thermal vias - meaning T_J rises ~200°C above ambient at 0.9 W, necessitating derating for continuous operation.

CPH3223-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:: NPN

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

Voltage - Collector Emitter Breakdown (Max):: 50 V

Vce Saturation (Max) @ Ib, Ic:: 240mV @ 100mA, 2A

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

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

Power - Max:: 900 mW

Frequency - Transition:: 380MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 3-CPH

CPH3223-TL-E FAQ

1.How can I place an order for CPH3223-TL-E through Aetrix?

Please submit a Request for Quotation (RFQ) for CPH3223-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 CPH3223-TL-E reliable?

The price and inventory of CPH3223-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 CPH3223-TL-E is usually 5 days.

3.What payment methods are accepted for CPH3223-TL-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CPH3223-TL-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CPH3223-TL-E?

CPH3223-TL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CPH3223-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 CPH3223-TL-E?

For technical support, including CPH3223-TL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CPH3223-TL-E requirements.

6.How does Aetrix verify that CPH3223-TL-E is sourced from the original manufacturer or authorized distributors?

All CPH3223-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 CPH3223-TL-E meets industry standards.

7.What is the process for return or replacement of CPH3223-TL-E?

All CPH3223-TL-E units undergo pre-shipment inspection (PSI). If there is an issue with CPH3223-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 CPH3223-TL-E part is unused and in its original packaging.

Return procedure for CPH3223-TL-E:

1.Submit a request within 90 days.

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

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