CPH3101-TL-E Equivalent & Substitute Parts

Part Overview

The CPH3101-TL-E is a Surface Mount Bipolar (BJT) Transistor manufactured by onsemi, classified as a PNP device rated for 30V collector-emitter breakdown voltage and 2A maximum collector current. This component is designed for general-purpose switching and amplification applications requiring moderate frequency response up to 150MHz with 900mW power dissipation capability. The CPH3101-TL-E is currently listed as obsolete, making identification of functionally equivalent substitute components essential for ongoing design support, production continuity, and system maintenance.

Substiute Parts

CPH3101-TL-E

onsemiIn Stock: 788CPH3101-TL-E Datasheet

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CPH3115-TL-E

onsemiIn Stock: 2506CPH3115-TL-E Datasheet

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2SAR512RTL

Rohm SemiconductorIn Stock: 103062SAR512RTL Datasheet

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PBSS5240T,215

Nexperia USA Inc.In Stock: 17240PBSS5240T,215 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CPH3101-TL-E is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Transistor Type: PNP (mandatory match)
• Voltage - Collector Emitter Breakdown (Max): ≥30V (equal or higher rating acceptable)
• Current - Collector (Ic) (Max): ≥2A (equal or higher rating acceptable)
• Power - Max: ≥900mW (equal or higher rating acceptable)
• DC Current Gain (hFE) (Min): ≥200 @ 100mA, 2V (equal or higher acceptable)
• Operating Temperature (TJ): ≥150°C (equal or higher acceptable)
• Mounting Type: Surface Mount (mandatory match)
• RoHS Status: ROHS3 Compliant (mandatory match)

Secondary Compatibility Factors:

• Frequency - Transition: ≥150MHz (equal or higher acceptable)
• Vce Saturation characteristics: Lower values preferred for switching efficiency
• Current - Collector Cutoff (Max): Lower values preferred for leakage performance

The identified substitute parts meet or exceed the primary electrical specifications of the CPH3101-TL-E while maintaining surface mount compatibility and regulatory compliance. Package form factors may differ while maintaining functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

CPH3115-TL-E (onsemi): This part maintains identical voltage and power ratings to the CPH3101-TL-E while reducing maximum collector current to 1.5A. The CPH3115-TL-E is suitable for applications where the full 2A capability is not required. Both devices share onsemi manufacturing heritage and identical ROHS3 compliance. The CPH3115-TL-E is also listed as obsolete, limiting its long-term availability.

2SAR512RTL (Rohm Semiconductor): This part matches the 2A collector current and 30V voltage rating of the CPH3101-TL-E while providing superior power dissipation at 1W and higher frequency response at 430MHz. The 2SAR512RTL carries active product status, ensuring ongoing availability and supply chain stability. This part is the preferred substitute for new designs and production continuity. ROHS3 compliance and identical operating temperature range are maintained.

PBSS5240T,215 (Nexperia USA Inc.): This part exceeds the voltage rating at 40V and matches the 2A collector current specification. Power dissipation is reduced to 480mW, which may limit applications requiring the full 900mW capability of the original device. The PBSS5240T,215 carries active product status and offers the highest inventory availability. Package form factor differs from the original 3-CPH configuration. ROHS3 compliance is maintained.

Compliance and Regulatory Status: All substitute parts maintain ROHS3 compliance, REACH unaffected status, and EAR99 export classification consistent with the CPH3101-TL-E. Moisture sensitivity level remains at MSL 1 (Unlimited) across all options.

Frequently Asked Questions (FAQ)

Q: Can the CPH3115-TL-E directly replace the CPH3101-TL-E in all applications?

A: The CPH3115-TL-E is suitable for applications where maximum collector current does not exceed 1.5A. Applications requiring the full 2A capability of the CPH3101-TL-E require evaluation of actual circuit current demands. Both devices share identical voltage, power, and gain specifications, making the CPH3115-TL-E a direct substitute for current-limited designs.

Q: Why is the 2SAR512RTL recommended as the primary substitute?

A: The 2SAR512RTL matches all critical electrical parameters of the CPH3101-TL-E (2A collector current, 30V voltage rating, 900mW+ power dissipation) while maintaining active product status. Active status ensures long-term availability, supply chain stability, and ongoing manufacturing support. The higher frequency response (430MHz vs. 150MHz) provides additional performance margin for switching applications.

Q: What are the package compatibility considerations?

A: The CPH3101-TL-E uses a 3-CPH package (3-SMD, Gull Wing configuration). The CPH3115-TL-E and 2SAR512RTL use SC-96 packages, while the PBSS5240T,215 uses TO-236-3/SOT-23-3 packages. Physical package differences require PCB layout evaluation and potential footprint modification. Electrical functionality remains equivalent across all package options.

Q: Is the PBSS5240T,215 suitable for applications requiring 900mW power dissipation?

A: The PBSS5240T,215 is rated for 480mW maximum power dissipation, which is 53% lower than the CPH3101-TL-E specification. Applications requiring sustained operation at or near 900mW power levels should use the 2SAR512RTL (1W rating) or CPH3115-TL-E (900mW rating) instead. The PBSS5240T,215 is suitable for lower power switching applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts (CPH3115-TL-E, 2SAR512RTL, and PBSS5240T,215) carry ROHS3 compliance certification identical to the CPH3101-TL-E. REACH unaffected status is maintained across all options.

Q: What is the impact of higher voltage ratings in the PBSS5240T,215?

A: The PBSS5240T,215 is rated for 40V collector-emitter breakdown voltage compared to 30V for the CPH3101-TL-E. Higher voltage ratings provide additional safety margin in applications subject to transient overvoltage conditions. This characteristic does not negatively impact performance in circuits designed for 30V operation.

Q: How do frequency specifications affect substitution?

A: The CPH3101-TL-E operates at 150MHz transition frequency. The CPH3115-TL-E (450MHz) and 2SAR512RTL (430MHz) provide significantly higher frequency capability, suitable for higher-speed switching applications. The PBSS5240T,215 (200MHz) exceeds the original specification. Higher frequency ratings do not restrict use in lower-frequency applications.

Q: What is the significance of Vce saturation differences?

A: Lower Vce saturation values indicate improved switching efficiency and reduced power loss during saturation. The PBSS5240T,215 exhibits the lowest saturation voltage (350mV @ 200mA, 2A), followed by the 2SAR512RTL (400mV @ 35mA, 700mA). The CPH3115-TL-E shows improved saturation characteristics (375mV @ 15mA, 750mA) compared to the original CPH3101-TL-E (600mV @ 75mA, 1.5A). Lower saturation voltages are advantageous for switching applications.