MPSA92RLRAG Equivalent & Substitute Parts

Part Overview

The MPSA92RLRAG is a PNP bipolar junction transistor (BJT) manufactured by onsemi, rated for 300 V collector-emitter breakdown voltage and 500 mA maximum collector current. The device is packaged in a Through Hole TO-92 (TO-226-3) configuration with a maximum power dissipation of 625 mW and transition frequency of 50 MHz. The MPSA92RLRAG is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement requirements.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Current - Collector (Ic) (Max)	500	mA
Voltage - Collector Emitter Breakdown (Max)	300	V
Vce Saturation (Max) @ Ib, Ic	500 mV @ 2 mA, 20 mA	—
Current - Collector Cutoff (Max)	250	nA
DC Current Gain (hFE) (Min) @ Ic, Vce	25 @ 30 mA, 10 V	—
Power - Max	625	mW
Frequency - Transition	50	MHz
Operating Temperature Range	-55 to 150	°C
Mounting Type	Through Hole	—
Package / Case	TO-226-3, TO-92-3	—

Substitute Part Grouping Explanation

Substitution of the MPSA92RLRAG is determined by electrical and mechanical parameter equivalence across the following critical specifications:

Electrical Parameters (Must Match):

Transistor Type: PNP
Maximum Collector Current (Ic): 500 mA
Collector-Emitter Breakdown Voltage: 300 V
Vce Saturation: 500 mV @ 2 mA, 20 mA
Collector Cutoff Current (ICBO): 250 nA
DC Current Gain (hFE): 25 @ 30 mA, 10 V
Transition Frequency: 50 MHz

Mechanical Parameters:

Mounting Type: Through Hole or Surface Mount (application-dependent)
Package Type: TO-92-3 (Through Hole) or SOT-23-3 (Surface Mount)

Compliance & Status:

Product Status: Active or Obsolete (Active preferred for new procurement)
RoHS/REACH Compliance: Preferred for regulatory alignment

Substitute parts are grouped into two categories: direct through-hole replacements (KSP92TA, MPSA92 PBFREE) and functionally equivalent surface-mount alternative (MMBTA92LT1G).

Parameter Comparison

Parameter	MPSA92RLRAG	KSP92TA	MMBTA92LT1G	MPSA92 PBFREE
Manufacturer	onsemi	onsemi	onsemi	Central Semiconductor Corp
Transistor Type	PNP	PNP	PNP	PNP
Ic (Max)	500 mA	500 mA	500 mA	500 mA
Vce Breakdown (Max)	300 V	300 V	300 V	300 V
Vce Saturation (Max)	500 mV @ 2 mA, 20 mA	500 mV @ 2 mA, 20 mA	500 mV @ 2 mA, 20 mA	500 mV @ 2 mA, 20 mA
ICBO (Max)	250 nA	250 nA	250 nA	250 nA
hFE (Min)	25 @ 30 mA, 10 V	25 @ 30 mA, 10 V	25 @ 30 mA, 10 V	25 @ 30 mA, 10 V
Frequency - Transition	50 MHz	50 MHz	50 MHz	50 MHz
Power - Max	625 mW	625 mW	300 mW	625 mW
Operating Temperature	-55 to 150 °C	Up to 150 °C	-55 to 150 °C	-65 to 150 °C
Mounting Type	Through Hole	Through Hole	Surface Mount	Through Hole
Package / Case	TO-92-3 (TO-226)	TO-92-3 (TO-226AA)	SOT-23-3 (TO-236)	TO-92-3 (TO-226AA)
Product Status	Obsolete	Active	Active	Active
RoHS Status	REACH Unaffected	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Through-Hole Replacement (Preferred for Pin-Compatible Applications):

KSP92TA and MPSA92 PBFREE are direct electrical and mechanical equivalents to the MPSA92RLRAG. Both devices maintain identical electrical specifications across all critical parameters and are packaged in TO-92-3 through-hole configuration. KSP92TA is manufactured by onsemi with active product status and ROHS3 compliance. MPSA92 PBFREE is manufactured by Central Semiconductor Corp, also with active status and ROHS3 compliance, and supports an extended operating temperature range of -65 to 150 °C. Both substitutes are suitable for direct board-level replacement without circuit modification.

Surface-Mount Alternative (For PCB Redesign Applications):

MMBTA92LT1G provides functional equivalence with all electrical parameters matching the MPSA92RLRAG. This device is packaged in SOT-23-3 surface-mount configuration and is manufactured by onsemi with active product status and ROHS3 compliance. The maximum power dissipation is reduced to 300 mW compared to 625 mW for the through-hole versions. MMBTA92LT1G is suitable for applications where PCB redesign to surface-mount technology is feasible and power dissipation requirements do not exceed 300 mW.

Compliance Considerations:

All substitute parts carry REACH Unaffected status and ROHS3 compliance, aligning with current regulatory requirements. The MPSA92RLRAG is classified as REACH Unaffected without explicit RoHS certification, whereas all substitute parts provide ROHS3 compliance, offering improved regulatory alignment for new designs and procurement.

Frequently Asked Questions (FAQ)

Q: Can KSP92TA be used as a direct replacement for MPSA92RLRAG in existing designs?

A: Yes. KSP92TA is electrically and mechanically equivalent to MPSA92RLRAG. Both devices share identical electrical specifications (500 mA Ic, 300 V Vce breakdown, 625 mW power rating, 50 MHz transition frequency) and are packaged in TO-92-3 through-hole configuration. No circuit modification is required.

Q: What is the primary difference between KSP92TA and MMBTA92LT1G?

A: The primary difference is packaging and mounting type. KSP92TA is a through-hole TO-92-3 device, while MMBTA92LT1G is a surface-mount SOT-23-3 device. Additionally, MMBTA92LT1G has a maximum power dissipation of 300 mW compared to 625 mW for KSP92TA. All other electrical parameters are identical.

Q: Is MMBTA92LT1G suitable for applications requiring 625 mW power dissipation?

A: No. MMBTA92LT1G is rated for a maximum of 300 mW power dissipation. Applications requiring 625 mW dissipation must use KSP92TA or MPSA92 PBFREE. Exceeding the 300 mW rating will result in device damage.

Q: Can MPSA92 PBFREE be used in place of KSP92TA?

A: Yes. MPSA92 PBFREE is electrically and mechanically equivalent to KSP92TA. Both are through-hole TO-92-3 devices with identical electrical specifications. MPSA92 PBFREE supports an extended operating temperature range of -65 to 150 °C compared to KSP92TA's upper limit of 150 °C, making it suitable for applications requiring lower temperature operation.

Q: What does "PBFREE" designation indicate in MPSA92 PBFREE?

A: PBFREE indicates lead-free construction, compliant with ROHS3 regulations. This designation confirms the absence of lead in the device packaging and solder connections.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. KSP92TA, MMBTA92LT1G, and MPSA92 PBFREE are all ROHS3 compliant. The original MPSA92RLRAG is classified as REACH Unaffected without explicit RoHS certification. Substitutes provide improved regulatory alignment for new procurement and design activities.

Q: Which substitute part has the highest inventory availability?

A: MMBTA92LT1G has the highest inventory availability at 155,300 pieces. KSP92TA has 85,100 pieces, and MPSA92 PBFREE has 8,547 pieces in stock.

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