MMS9015HE3-H-TP PNP Transistor Equivalent & Substitute Parts

Part Overview

The MMS9015HE3-H-TP is an active PNP bipolar junction transistor manufactured by Micro Commercial Co, designed for surface mount applications in the SOT-23 package. This component operates at a maximum collector current of 100 mA with a collector-emitter breakdown voltage of 45 V and a maximum power dissipation of 200 mW. The device is qualified to AEC-Q101 automotive standards and carries ROHS3 compliance. Substitute parts are identified when equivalent electrical parameters and mechanical compatibility are maintained across the specified operating range.

Substiute Parts

MMS9015HE3-H-TP

Micro Commercial CoIn Stock: 844MMS9015HE3-H-TP Datasheet

Current PartRFQ

BC857A RFG

Taiwan Semiconductor CorporationIn Stock: 10037BC857A RFG Datasheet

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BC857B RFG

Taiwan Semiconductor CorporationIn Stock: 10037BC857B RFG Datasheet

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BC857C RFG

Taiwan Semiconductor CorporationIn Stock: 9958BC857C RFG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MMS9015HE3-H-TP is determined by strict equivalence in the following electrical and mechanical parameters:

Critical Matching Parameters:

• Transistor Type: PNP
• Maximum Collector Current (Ic): 100 mA
• Maximum Collector-Emitter Breakdown Voltage: 45 V
• Maximum Power Dissipation: 200 mW
• Package Type: SOT-23-3 (TO-236-3, SC-59)
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C to 150°C

Allowable Variation Parameters:

• Frequency - Transition: Substitute parts may operate at lower frequencies (100 MHz) while maintaining all other specifications
• DC Current Gain (hFE): Substitute parts may have different gain specifications at different measurement conditions
• Vce Saturation: Substitute parts may have different saturation voltages at different base and collector current conditions

The BC857A RFG, BC857B RFG, and BC857C RFG manufactured by Taiwan Semiconductor Corporation meet all critical matching parameters and are therefore qualified as direct substitutes for the MMS9015HE3-H-TP.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts—BC857A RFG, BC857B RFG, and BC857C RFG—are active products with ROHS3 compliance and REACH unaffected status, matching the regulatory and environmental compliance profile of the MMS9015HE3-H-TP. All substitute parts maintain the same operating temperature range of -55°C to 150°C and identical moisture sensitivity classification (MSL 1, Unlimited).

The primary electrical difference between the main part and substitute parts is the transition frequency specification. The MMS9015HE3-H-TP operates at 150 MHz, while the BC857 variants operate at 100 MHz. This difference is allowable in applications where the required bandwidth does not exceed 100 MHz.

Secondary differences exist in DC current gain (hFE) specifications and Vce saturation characteristics, measured at different base and collector current conditions. These differences do not affect substitution eligibility when the application circuit design accommodates the specified gain and saturation parameters of the selected substitute part.

All substitute parts are available in Tape & Reel (TR) packaging, suitable for automated assembly processes. The SOT-23-3 package pinout and mechanical dimensions are identical across all parts, ensuring direct board-level compatibility.

Frequently Asked Questions (FAQ)

Q: Can BC857A RFG, BC857B RFG, or BC857C RFG be used as direct replacements for MMS9015HE3-H-TP in all applications?

A: Direct substitution is valid when the application circuit operates at frequencies not exceeding 100 MHz and when the circuit design accommodates the DC current gain and saturation voltage specifications of the selected BC857 variant. The SOT-23-3 package and electrical ratings (45 V, 100 mA, 200 mW) are identical, ensuring mechanical and thermal compatibility.

Q: What is the difference between BC857A RFG, BC857B RFG, and BC857C RFG?

A: The three BC857 variants differ in their minimum DC current gain (hFE) specifications. BC857A RFG has a minimum hFE of 125 @ 2mA, 5V; BC857B RFG has 220 @ 2mA, 5V; and BC857C RFG has 420 @ 2mA, 5V. Selection between variants depends on the required gain characteristics for the specific circuit application.

Q: Are there packaging differences between the main part and substitute parts?

A: The MMS9015HE3-H-TP is supplied in standard packaging, while BC857A RFG, BC857B RFG, and BC857C RFG are supplied in Tape & Reel (TR) format. Both packaging formats contain identical SOT-23-3 components suitable for surface mount assembly. Tape & Reel packaging is standard for high-volume automated production.

Q: Does the 150 MHz versus 100 MHz transition frequency difference affect substitution?

A: The transition frequency difference is allowable when the application circuit operates below 100 MHz. For applications requiring operation above 100 MHz, the MMS9015HE3-H-TP with its 150 MHz specification is the appropriate choice. Circuit bandwidth requirements determine whether the lower frequency specification of BC857 variants is acceptable.

Q: Are all parts compliant with automotive and environmental standards?

A: The MMS9015HE3-H-TP carries AEC-Q101 automotive qualification. All substitute parts (BC857A RFG, BC857B RFG, BC857C RFG) are ROHS3 compliant and REACH unaffected. Automotive qualification status should be confirmed with the manufacturer if AEC-Q101 certification is a requirement for the end application.

Q: What is the significance of MSL 1 (Unlimited) moisture sensitivity?

A: MSL 1 (Unlimited) indicates that the component has unlimited shelf life and does not require special moisture control during storage or handling. This classification applies to all parts in this substitution group, ensuring equivalent moisture management requirements.