CPH3121-TL-E PNP bipolar transistor rated for 12V collector-emitter voltage and 3A collector current. Features low saturation voltage and high-speed switching in a compact CPH3 surface mount package.
Mfr Part #:

CPH3121-TL-E

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
PNP bipolar transistor rated for 12V collector-emitter voltage and 3A collector current. Features low saturation voltage and high-speed switching in a compact CPH3 surface mount package.
Total Stock: 3,000 pcs

CPH3121-TL-E Available from 1 distributor

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3000 pcs On Request 1 On Request On Request On Request On Request On Request

CPH3121-TL-E Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Base Current (IB)
Base-to-Emitter Saturation Voltage (VBE(sat))
Collector Current Pulse (ICP)
Collector Cutoff Current (ICBO)
Collector to Base Breakdown Voltage (V(BR)CBO)
Collector to Emitter Breakdown Voltage (V(BR)CEO)
Collector-to-Base Voltage (VCBO)
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
Emitter Cutoff Current (Iebo)
Emitter to Base Breakdown Voltage (V(BR)EBO)
Emitter-to-Base Voltage (VEBO)
Fall Time (tf)
Frequency
Mounting Type
Operating Temperature
Output Capacitance (Cob)
Power
Standard Package Quantity
Storage Temperature
Storage Time (tstg)
Supplier Device Package
Tape & Reel
Transistor Type
Turn-On Time (ton)
Vce Saturation (Max) @ Ib, Ic
Voltage

CPH3121-TL-E Description

Short technical summary and product information.

The CPH3121-TL-E is a PNP bipolar junction transistor manufactured by On Semiconductor. It is designed for general-purpose switching and amplification applications requiring moderate current and voltage handling.

 

It features a maximum collector-emitter voltage of 12V and a continuous collector current rating of 3A (5A pulse). The DC current gain (hFE) is typically 560 at 500mA, with a minimum of 200. The collector-emitter saturation voltage is typically -165mV at 1.5A. The transition frequency is 380 MHz, making it suitable for high-speed switching.

 

The device is housed in a CPH3 surface mount package (JEITA/JEDEC SC-59, TO-236, SOT-23) with a low profile of 0.9mm height. It is supplied in tape and reel packaging with 3000 pieces per reel. The operating junction temperature range is up to 150°C.

 

Typical applications include relay drivers, lamp drivers, and motor drivers. The low saturation voltage and high current capability make it efficient for power management circuits.

CPH3121-TL-E Quick Information

Product Type: Bipolar Transistor
Canonical Name: CPH3121-TL-E PNP Bipolar Transistor
Subcategory: Single PNP

CPH3121-TL-E Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected
Lead Free: Yes

CPH3121-TL-E Features

  • PNP bipolar transistor with 12V VCEO rating.
  • Continuous collector current up to 3A.
  • Low collector-emitter saturation voltage of -165mV.
  • High transition frequency of 380 MHz.
  • Compact CPH3 surface mount package.

CPH3121-TL-E Applications

  • Ideal for relay and lamp driver circuits.
  • Suitable for motor driver applications.
  • Used in high-speed switching power supplies.
  • Applicable in general-purpose amplification.

CPH3121-TL-E FAQs

7 frequently asked questions generated from this part’s specifications.
What is the package type of the CPH3121-TL-E?

CPH3 (SC-59, TO-236, SOT-23) surface mount package.

What is the maximum junction temperature?

150°C

Is the CPH3121-TL-E RoHS compliant?

RoHS3 compliant (unverified).

What is the collector-emitter voltage rating?

12V maximum.

What is the maximum collector current?

3A continuous, 5A pulse.

What is the DC current gain (hFE)?

Minimum 200, typical 560 at VCE=-2V, IC=-500mA.

What are the switching times?

Turn-on time 30ns, storage time 90ns, fall time 14ns.

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