MPSH10RLRPG Equivalent & Substitute Parts

Part Overview

The MPSH10RLRPG is an RF transistor NPN manufactured by onsemi, rated for 25V collector-emitter breakdown voltage and 650MHz transition frequency. This through-hole TO-92-3 device delivers 350mW maximum power dissipation and is designed for RF small-signal applications. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. Active alternatives with comparable electrical characteristics and different package options are available from multiple manufacturers.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	25	V
Frequency - Transition	650	MHz
Power - Max	350	mW
DC Current Gain (hFE) (Min) @ Ic, Vce	60 @ 4mA, 10V	—
Operating Temperature	-55 to 150	°C (TJ)
Mounting Type	Through Hole	—
Package / Case	TO-226-3, TO-92-3	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution of the MPSH10RLRPG is determined by matching the following critical electrical and mechanical parameters:

Primary Matching Criteria:

Transistor Type: NPN
Voltage - Collector Emitter Breakdown (Max): 25V or higher
Frequency - Transition: 650MHz or higher
DC Current Gain (hFE) (Min) @ Ic, Vce: 60 @ 4mA, 10V or equivalent specification
Power - Max: 350mW or higher

Secondary Considerations:

Operating Temperature range compatibility
Mounting Type (through-hole or surface-mount alternatives)
Package / Case compatibility with board layout

Substitutes are grouped into two categories:

Direct Substitutes (Through-Hole TO-92-3): Parts maintaining identical mounting type and package form factor, enabling direct board-level replacement without layout modification.

Functional Equivalents (Surface-Mount Alternatives): Parts meeting or exceeding electrical specifications but utilizing surface-mount packages (SOT-23-3, SOT-343, SC-70, TSFP), requiring board redesign or adapter solutions.

Parameter Comparison

Part Number	Manufacturer	Transistor Type	Vce Breakdown (Max)	Frequency - Transition	Power - Max	hFE (Min)	Operating Temp	Mounting Type	Package / Case	Product Status
MPSH10RLRPG	onsemi	NPN	25V	650MHz	350mW	60 @ 4mA, 10V	-55 to 150°C	Through Hole	TO-92-3	Obsolete
KSP10TA	Fairchild Semiconductor	NPN	25V	650MHz	350mW	60 @ 4mA, 10V	-55 to 150°C	Through Hole	TO-92-3	Active
MMBTH10LT1G	onsemi	NPN	25V	650MHz	225mW	60 @ 4mA, 10V	-55 to 150°C	Surface Mount	SOT-23-3	Active
2N918 PBFREE	Central Semiconductor Corp	NPN	15V	600MHz	200mW	20 @ 3mA, 1V	-65 to 200°C	Through Hole	TO-72	Active
BFP405H6327XTSA1	Infineon Technologies	NPN	5V	25GHz	75mW	60 @ 5mA, 4V	-55 to 150°C	Surface Mount	SOT-343	Active
BFP720FESDH6327XTSA1	Infineon Technologies	NPN	4.7V	45GHz	100mW	160 @ 15mA, 3V	-55 to 150°C	Surface Mount	4-TSFP	Active
BFR106E6327HTSA1	Infineon Technologies	NPN	15V	5GHz	700mW	70 @ 70mA, 8V	-55 to 150°C	Surface Mount	SOT-23-3	Active
BFR360FH6327XTSA1	Infineon Technologies	NPN	9V	14GHz	210mW	90 @ 15mA, 3V	-55 to 150°C	Surface Mount	SOT-723	Active
MT3S16U(TE85L,F)	Toshiba Semiconductor and Storage	NPN	5V	4GHz	100mW	80 @ 5mA, 1V	-55 to 125°C	Surface Mount	SC-70	Active

Engineering Selection Recommendations

Direct Replacement (No Board Modification Required):

KSP10TA from Fairchild Semiconductor is the primary direct substitute for MPSH10RLRPG. Both parts share identical electrical specifications (25V Vce breakdown, 650MHz transition frequency, 350mW power rating, 60 hFE minimum) and through-hole TO-92-3 package configuration. KSP10TA is active in production, ensuring long-term availability and supply chain continuity. This part is suitable for immediate drop-in replacement in existing designs.

Surface-Mount Alternatives (Board Redesign Required):

MMBTH10LT1G (onsemi, SOT-23-3) maintains the same voltage rating (25V), frequency (650MHz), and gain characteristics (60 hFE) as the original part. Power rating is reduced to 225mW. This part is active with high inventory availability (62,400 units) and RoHS3 compliance. Surface-mount implementation requires PCB layout modification.

BFR106E6327HTSA1 (Infineon Technologies, SOT-23-3) exceeds the original specifications with 15V Vce breakdown, 5GHz transition frequency, and 700mW power rating. This part is suitable for applications requiring higher frequency performance or increased power dissipation. Extremely high inventory availability (1,000,300 units) and RoHS3 compliance support long-term design continuity.

Limited Compatibility Alternatives:

2N918 PBFREE (Central Semiconductor Corp, TO-72) provides through-hole mounting but with reduced electrical specifications: 15V Vce breakdown (below 25V requirement), 600MHz frequency (below 650MHz requirement), and 200mW power (below 350mW requirement). This part is suitable only for applications with relaxed voltage and power requirements.

High-frequency alternatives (BFP405H6327XTSA1, BFP720FESDH6327XTSA1, BFR360FH6327XTSA1, MT3S16U) offer significantly higher transition frequencies (4GHz to 45GHz) but operate at reduced voltage ratings (4.7V to 9V). These parts are applicable only to designs requiring GHz-range performance and operating within lower voltage constraints.

Compliance and Availability:

All active substitute parts carry RoHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. KSP10TA and MMBTH10LT1G are recommended for standard RF applications requiring direct electrical and mechanical compatibility with the obsolete MPSH10RLRPG.

Frequently Asked Questions (FAQ)

Q: Can KSP10TA replace MPSH10RLRPG without any circuit modifications?

A: Yes. KSP10TA is a direct substitute with identical electrical specifications (25V Vce breakdown, 650MHz transition frequency, 350mW power, 60 hFE minimum) and through-hole TO-92-3 package. No circuit or board modifications are required.

Q: What is the difference between MMBTH10LT1G and MPSH10RLRPG?

A: MMBTH10LT1G matches the voltage (25V), frequency (650MHz), and gain (60 hFE) specifications of MPSH10RLRPG but has a reduced power rating (225mW versus 350mW) and uses surface-mount SOT-23-3 packaging instead of through-hole TO-92-3. Board redesign is required for implementation.

Q: Why do high-frequency alternatives like BFP405H6327XTSA1 have lower voltage ratings?

A: High-frequency RF transistors are optimized for GHz-range operation and typically operate at lower supply voltages (5V or less) to maintain performance and reduce parasitic effects. These parts are not suitable for 25V applications.

Q: Is MMBTH10LT1G suitable for all applications using MPSH10RLRPG?

A: MMBTH10LT1G is suitable for applications where the 225mW power rating is sufficient. Applications requiring the full 350mW power dissipation of the original part require either KSP10TA (through-hole) or BFR106E6327HTSA1 (surface-mount, 700mW capability).

Q: What is the inventory status of substitute parts?

A: KSP10TA has 2,100 units in stock. MMBTH10LT1G has 62,400 units available. BFR106E6327HTSA1 has 1,000,300 units in stock, providing the highest supply security for long-term production requirements.

Q: Can 2N918 PBFREE be used as a substitute?

A: 2N918 PBFREE does not meet the electrical requirements of MPSH10RLRPG. It has a 15V Vce breakdown (below the 25V requirement), 600MHz frequency (below 650MHz), and 200mW power (below 350mW). Use is limited to applications with relaxed specifications.

Q: Are all substitute parts RoHS3 compliant?

A: All active substitute parts listed (KSP10TA, MMBTH10LT1G, BFP405H6327XTSA1, BFP720FESDH6327XTSA1, BFR106E6327HTSA1, BFR360FH6327XTSA1, MT3S16U) are RoHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: What package types are available for substitution?

A: Through-hole TO-92-3 (KSP10TA, 2N918 PBFREE), surface-mount SOT-23-3 (MMBTH10LT1G, BFR106E6327HTSA1), surface-mount SOT-343 (BFP405H6327XTSA1), surface-mount 4-TSFP (BFP720FESDH6327XTSA1), surface-mount SOT-723 (BFR360FH6327XTSA1), and surface-mount SC-70 (MT3S16U).

Q: Which substitute offers the best long-term availability?

A: BFR106E6327HTSA1 offers the highest inventory (1,000,300 units) and exceeds the original specifications (700mW power, 5GHz frequency, 15V Vce). For through-hole applications, KSP10TA is the recommended choice with active production status.

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