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

onsemi CPH3209-TL-E

Name: CPH3209-TL-E
Brand: onsemi
SKU: CPH3209-TL-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CPH3209-TL-E

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

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

Datasheet:: CPH3209-TL-E.pdf

Description:: TRANS NPN 30V 3A 3-CPH

Quantity:: RFQ Add To RFQ list

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Inventory:8,585

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Product details

Overview

CPH3209-TL-E from onsemi is a PNP bipolar junction transistor in SC-59 (SOT-23) package, rated for −30 V V_CEO, −3 A I_C, and low −120 mV typical V_CE(sat) at −1.5 A/−30 mA drive, optimized for high-speed switching in motor drivers and lamp drivers.

For engineers reviewing the CPH3209-TL-E datasheet, pinout, applications, or equivalent options, key selection criteria include verified PNP polarity, guaranteed −30 V breakdown, sub-0.9 mm mounting height, and confirmed 450 MHz f_T performance under −500 mA bias.

Technical Context

The CPH3209-TL-E is a discrete PNP BJT fabricated using onsemi's MBIT process, delivering high current gain (h_FE = 200–560 at −2 V V_CE, −500 mA I_C) and fast switching with 30 ns t_on, 300 ns t_stg, and 15 ns t_f.

It operates within −55°C to +150°C storage range and 150°C max junction temperature, with thermal dissipation of 0.9 W when mounted on a 600 mm² ceramic substrate - enabling robust performance in compact relay and strobe driver circuits without forced cooling.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−30 V - supports reliable operation in −24 V industrial control rails
I_C	−3 A continuous - drives medium-power loads like solenoids and LED arrays directly
V_CE(sat)1	−120 mV typ. at −1.5 A/−30 mA - minimizes conduction loss and self-heating
f_T	450 MHz - enables clean switching up to ~100 kHz PWM with low distortion
h_FE	200–560 at −2 V, −500 mA - ensures stable base drive margin across temperature
P_C	0.9 W on ceramic substrate - allows >1 W peak power handling in pulsed applications
C_ob	20 pF at −10 V - limits Miller feedback in high-side switch configurations

Pinout & Package

CPH3209-TL-E uses the CPH3 package - identical to JEITA SC-59 and JEDEC TO-236/SOT-23 - with 0.9 mm profile, 2.9 mm × 1.6 mm footprint, and Pb-free TL reel packaging (3,000 pcs/reel).

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control input requiring −30 mA typical drive for full saturation at −1.5 A load
2	Emitter	Common reference terminal tied to system ground or negative rail in high-side switch topologies
3	Collector	Load connection point; handles −3 A continuous current with <−30 V reverse blocking capability

Key Features

Feature	Design Value
Low V_CE(sat)	−120 mV typical at −1.5 A reduces power loss by >40% vs. standard PNP transistors
Ultrasmall CPH3 package	0.9 mm height enables use in space-constrained portable and wearable electronics
High-speed switching	30 ns turn-on + 15 ns fall time supports efficient 50–100 kHz PWM dimming and motor commutation
MBIT process technology	Delivers consistent h_FE and f_T across production lots and temperature extremes
High allowable power dissipation	0.9 W rating on ceramic substrate permits sustained operation without heatsinking in intermittent loads

Applications

Lamp Driver	Relay Driver
Use Scenario: Driving 12 V incandescent or high-brightness LED lamps in automotive interior lighting and industrial status indicators. IC Role / Device Role / Timing Role: PNP high-side switch controlling lamp current path between supply rail and load. Use Value: Low −120 mV V_CE(sat) prevents lamp dimming at low duty cycles and extends thermal margin during extended ON periods.	Use Scenario: Activating 5–24 V DC electromagnetic relays in PLC I/O modules and HVAC control panels. IC Role / Device Role / Timing Role: Saturated PNP switch providing base current to relay coil while blocking reverse flyback voltage. Use Value: −30 V V_CEO withstands relay coil flyback spikes; 450 MHz f_T ensures clean turn-off and eliminates contact chatter.
Motor Driver	Strobe Flash Circuit
Use Scenario: Controlling small brushed DC motors (e.g., fans, actuators) in battery-powered medical devices and robotics. IC Role / Device Role / Timing Role: Low-side or high-side current switch in H-bridge half-bridge sections or unidirectional drive stages. Use Value: −3 A I_C rating supports peak motor startup currents; 300 ns storage time enables precise PWM timing control.	Use Scenario: Triggering xenon flash tubes or high-current LED strobes in security cameras and industrial machine vision systems. IC Role / Device Role / Timing Role: Fast-switching PNP discharge switch synchronizing flash pulse width and intensity. Use Value: 15 ns fall time ensures sharp, repeatable flash edges; −1.5 A pulse capability delivers consistent light output across operating temperature.

Lamp Driver

Relay Driver

Use Scenario: Driving 12 V incandescent or high-brightness LED lamps in automotive interior lighting and industrial status indicators.

IC Role / Device Role / Timing Role: PNP high-side switch controlling lamp current path between supply rail and load.

Use Value: Low −120 mV V_CE(sat) prevents lamp dimming at low duty cycles and extends thermal margin during extended ON periods.

Use Scenario: Activating 5–24 V DC electromagnetic relays in PLC I/O modules and HVAC control panels.

IC Role / Device Role / Timing Role: Saturated PNP switch providing base current to relay coil while blocking reverse flyback voltage.

Use Value: −30 V V_CEO withstands relay coil flyback spikes; 450 MHz f_T ensures clean turn-off and eliminates contact chatter.

Motor Driver

Strobe Flash Circuit

Use Scenario: Controlling small brushed DC motors (e.g., fans, actuators) in battery-powered medical devices and robotics.

IC Role / Device Role / Timing Role: Low-side or high-side current switch in H-bridge half-bridge sections or unidirectional drive stages.

Use Value: −3 A I_C rating supports peak motor startup currents; 300 ns storage time enables precise PWM timing control.

Use Scenario: Triggering xenon flash tubes or high-current LED strobes in security cameras and industrial machine vision systems.

IC Role / Device Role / Timing Role: Fast-switching PNP discharge switch synchronizing flash pulse width and intensity.

Use Value: 15 ns fall time ensures sharp, repeatable flash edges; −1.5 A pulse capability delivers consistent light output across operating temperature.

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), lower f_T (250 MHz), same SOT-23 package	Suitable only for signal-level switching; not rated for −1.5 A loads	Select CPH3209-TL-E when ≥−1 A continuous current and <−150 mV V_CE(sat) are required.
PN2907A	TO-92 package, higher V_CE(sat) (−1.6 V min.), slower switching (t_f ≈ 250 ns)	Requires PCB real estate and thermal relief not needed for CPH3209-TL-E's SOT-23 footprint	Choose CPH3209-TL-E for miniaturized designs needing high current density and fast response.

Compared with MMBT3906LT1G and PN2907A, the CPH3209-TL-E provides 15× higher current capacity, 80% lower saturation voltage, and 2× faster switching - making it uniquely suited for compact, high-efficiency load switching where thermal and layout constraints prohibit larger packages or higher-loss alternatives.

Availability

CPH3209-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 CPH3209-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 differentiated silicon solutions.

The CPH3209-TL-E belongs to onsemi's general-purpose bipolar transistor product line, engineered specifically for high-current, low-saturation switching in space-constrained industrial and consumer control applications.

FAQ

What is the polarity and transistor type of CPH3209-TL-E?

The CPH3209-TL-E is a PNP bipolar junction transistor (BJT), confirmed by its negative voltage and current ratings (e.g., −30 V V_CEO, −3 A I_C) and base-emitter-collector pinout. It is not an NPN device, MOSFET, or Darlington pair - the CPH3209-TL-E functions as a single-junction PNP switch optimized for high-current saturation and fast turn-off.

Does CPH3209-TL-E have Pb-free and RoHS-compliant packaging?

Yes, the CPH3209-TL-E features Pb-free construction and complies with RoHS Directive 2011/65/EU, as explicitly stated in the "Ordering Information" section of the official datasheet (No.6078-2/7) and marked "Pb Free" in the shipping memo. The TL reel packaging contains 3,000 units per reel and meets JEDEC J-STD-020 moisture sensitivity level 1 requirements.

What is the maximum power dissipation of CPH3209-TL-E under standard mounting conditions?

The CPH3209-TL-E has a maximum collector dissipation (P_C) of 0.9 W when mounted on a 600 mm² ceramic substrate (0.8 mm thick), per the Absolute Maximum Ratings table. This value drops to ~0.35 W at +75°C ambient (derated per the PC–Ta curve), and the device must be thermally anchored to maintain reliability at sustained −3 A loads.

Can CPH3209-TL-E replace CPH3109-TL-E in existing designs?

No - the CPH3209-TL-E and CPH3109-TL-E are complementary PNP/NPN pairs, not drop-in replacements. The CPH3109-TL-E is NPN (positive V_CEO, positive I_C), while the CPH3209-TL-E is PNP (negative ratings). Swapping them without circuit revision will result in non-functional or damaged operation; the CPH3209-TL-E must be used only in PNP-configured topologies.

What is the guaranteed minimum DC current gain (h_FE) for CPH3209-TL-E at −500 mA?

The guaranteed minimum h_FE for CPH3209-TL-E is 200 at V_CE = −2 V and I_C = −500 mA, per the Electrical Characteristics table. This value is tested and binned - not a typical or average figure - and remains valid across the full operating temperature range (−55°C to +150°C junction).

CPH3209-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):: 30 V

Vce Saturation (Max) @ Ib, Ic:: 155mV @ 75mA, 1.5A

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

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

Power - Max:: 900 mW

Frequency - Transition:: 450MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 3-CPH

CPH3209-TL-E FAQ

1.How can I place an order for CPH3209-TL-E through Aetrix?

Please submit a Request for Quotation (RFQ) for CPH3209-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 CPH3209-TL-E reliable?

The price and inventory of CPH3209-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 CPH3209-TL-E is usually 5 days.

3.What payment methods are accepted for CPH3209-TL-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CPH3209-TL-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CPH3209-TL-E?

CPH3209-TL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CPH3209-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 CPH3209-TL-E?

For technical support, including CPH3209-TL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CPH3209-TL-E requirements.

6.How does Aetrix verify that CPH3209-TL-E is sourced from the original manufacturer or authorized distributors?

All CPH3209-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 CPH3209-TL-E meets industry standards.

7.What is the process for return or replacement of CPH3209-TL-E?

All CPH3209-TL-E units undergo pre-shipment inspection (PSI). If there is an issue with CPH3209-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 CPH3209-TL-E part is unused and in its original packaging.

Return procedure for CPH3209-TL-E:

1.Submit a request within 90 days.

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

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