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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

onsemi MPSA92RLRMG

Name: MPSA92RLRMG
Brand: onsemi
SKU: MPSA92RLRMG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPSA92RLRMG

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-226-3, TO-92-3 Long Body, Formed Leads

Datasheet:: MPSA92RLRMG.pdf

Description:: TRANS PNP 300V 0.5A TO92

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Product details

Overview

MPSA92RLRMG from onsemi is a PNP silicon high-voltage general-purpose transistor in TO-92 package, rated for −300 V_CEO, −300 V_CBO, −5 V_EBO, −500 mA continuous collector current, and 625 mW power dissipation at T_A = 25°C. It serves as a high-voltage switching or amplification element in off-line power supply feedback circuits, relay drivers, and HV signal conditioning stages.

For engineers reviewing the MPSA92RLRMG datasheet, pinout, applications, or equivalent options, key selection criteria include verified −300 V breakdown ratings, DC current gain (h_FE ≥ 25 at I_C = −1.0 mA), V_CE(sat) ≤ −0.5 V, C_cb = 6.0 pF, and TO-92 mechanical compatibility with legacy through-hole designs.

Technical Context

The MPSA92RLRMG is a discrete PNP bipolar junction transistor optimized for high-voltage linear and switching operation. Its design supports stable DC current gain across −55°C to +150°C junction temperature range and maintains safe operating area integrity up to 10 ms pulse width at 100 V and 100 mA.

It features low base-emitter saturation voltage (V_BE(sat) ≤ −0.9 V) and moderate f_T of 50 MHz, enabling use in medium-speed switching applications where voltage robustness outweighs RF performance requirements. Thermal resistance R_JA is 200°C/W, confirming suitability for natural-convection PCB mounting without heatsinking in low-duty-cycle roles.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−300 V - Supports direct connection to 240 VAC rectified rails without external snubbing.
I_C (continuous)	−500 mA - Sufficient drive capability for small relays, optocoupler LEDs, or gate resistors in HV MOSFET bias networks.
h_FE (min)	25 @ I_C = −1.0 mA - Ensures reliable turn-on margin in high-impedance base-drive configurations.
V_CE(sat)	≤ −0.5 V @ I_C = −20 mA, I_B = −2.0 mA - Limits conduction loss to <10 mW in saturated switching mode.
C_cb	6.0 pF @ V_CB = −20 V - Minimizes Miller effect in fast-switching topologies below 10 MHz.
R_JA	200°C/W - Allows operation at full rating with no heatsink on standard FR-4 PCB at ambient ≤ 50°C.

Pinout & Package

Package: TO-92 (Case 29-11), Pb-free, straight-lead ammo pack configuration. Dimensions per ON Semiconductor specification: A = 4.45–5.20 mm, B = 4.32–5.33 mm, C = 3.18–4.19 mm, lead pitch = 2.54 mm.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current source terminal for PNP operation	Connected to higher-potential rail; must be referenced to system ground or regulated node for proper biasing.
2 (Collector)	Current sink terminal	Typically tied to load (e.g., relay coil or optocoupler anode); voltage swing limited by V_CEO rating.
3 (Base)	Control input for minority-carrier injection	Driven with negative current relative to emitter; requires series resistor to limit I_B and ensure h_FE-based saturation.

Key Features

Feature	Design Value
High V_CEO rating	−300 V enables direct interface with 230 VAC-derived DC bus without voltage dividers or isolation.
Pb-free TO-92 packaging	Complies with RoHS Directive 2011/65/EU and supports automated through-hole assembly with standard reflow profiles.
Wide T_J range	−55°C to +150°C operation allows deployment in industrial motor controls and outdoor power supplies.
Low leakage I_CBO	≤ −0.25 µA @ V_CB = −200 V ensures minimal standby current in always-on HV monitoring circuits.

Applications

Switch-Mode Power Supply Feedback	AC Line Voltage Detection
Use Scenario: Monitoring rectified AC line voltage to trigger overvoltage shutdown in offline flyback controllers. IC Role / Device Role / Timing Role: High-side PNP switch isolating sensing circuitry from >300 V transient peaks. Use Value: Leverages −300 V_CEO and −300 V_CBO to eliminate external Zener clamping, reducing BOM count by one component.	Use Scenario: Detecting presence of 230 VAC mains to enable microcontroller wake-up before full system boot. IC Role / Device Role / Timing Role: HV-level translator converting AC-derived DC to logic-compatible active-low signal. Use Value: Uses h_FE ≥ 25 and V_CE(sat) ≤ −0.5 V to deliver clean digital edge with <10 µs propagation delay.
Relay Driver Circuit	Isolated Gate Bias Network
Use Scenario: Driving 12 V/24 V electromagnetic relays in programmable logic controller (PLC) output modules. IC Role / Device Role / Timing Role: Saturated PNP switch sinking relay coil current to ground via collector. Use Value: Delivers −500 mA I_C capability with <0.5 V saturation drop, limiting coil power loss to <12 mW at 24 V.	Use Scenario: Providing isolated turn-off bias to high-side N-channel MOSFETs in half-bridge inverters. IC Role / Device Role / Timing Role: Fast-turnoff current source pulling gate charge from floating driver IC outputs. Use Value: Low C_cb = 6.0 pF minimizes capacitive coupling noise into sensitive gate drive paths.

Switch-Mode Power Supply Feedback

AC Line Voltage Detection

Use Scenario: Monitoring rectified AC line voltage to trigger overvoltage shutdown in offline flyback controllers.

IC Role / Device Role / Timing Role: High-side PNP switch isolating sensing circuitry from >300 V transient peaks.

Use Value: Leverages −300 V_CEO and −300 V_CBO to eliminate external Zener clamping, reducing BOM count by one component.

Use Scenario: Detecting presence of 230 VAC mains to enable microcontroller wake-up before full system boot.

IC Role / Device Role / Timing Role: HV-level translator converting AC-derived DC to logic-compatible active-low signal.

Use Value: Uses h_FE ≥ 25 and V_CE(sat) ≤ −0.5 V to deliver clean digital edge with <10 µs propagation delay.

Relay Driver Circuit

Isolated Gate Bias Network

Use Scenario: Driving 12 V/24 V electromagnetic relays in programmable logic controller (PLC) output modules.

IC Role / Device Role / Timing Role: Saturated PNP switch sinking relay coil current to ground via collector.

Use Value: Delivers −500 mA I_C capability with <0.5 V saturation drop, limiting coil power loss to <12 mW at 24 V.

Use Scenario: Providing isolated turn-off bias to high-side N-channel MOSFETs in half-bridge inverters.

IC Role / Device Role / Timing Role: Fast-turnoff current source pulling gate charge from floating driver IC outputs.

Use Value: Low C_cb = 6.0 pF minimizes capacitive coupling noise into sensitive gate drive paths.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP high-voltage transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MPSA92RLRAG	Identical electrical specs and TO-92 package; differs only in packaging format (tape-and-reel vs. ammo pack).	No functional difference; selected when automated pick-and-place integration is required.	Choose MPSA92RLRAG for SMT-compatible reel-fed assembly lines; MPSA92RLRMG remains optimal for manual or wave-soldered through-hole production.
BC639-16	Lower V_CEO = −100 V, higher h_FE = 100–250, same TO-92 package and pinout.	Suitable only for sub-100 V applications; cannot replace MPSA92RLRMG in 230 VAC-derived circuits.	Select BC639-16 only where voltage stress is <80 V and higher DC gain is prioritized over breakdown safety margin.

Compared with MPSA92RLRMG, MPSA92RLRAG offers identical performance in tape-and-reel form for automated placement, while BC639-16 trades −300 V robustness for higher gain but is unsafe above 100 V-making MPSA92RLRMG the sole choice for true off-line HV interface roles.

Availability

MPSA92RLRMG is available at Aetrix Electronics and suitable for switch-mode power supply feedback, AC line voltage detection, and relay driver circuits requiring stable component supply and long-term industrial availability.

Supply support for MPSA92RLRMG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

onsemi (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient electronics, delivering power management, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.

The MPSA92RLRMG belongs to onsemi's legacy high-voltage discrete transistor family, engineered specifically for reliability-critical off-line power conversion, industrial control, and mains-connected sensing applications where voltage margin and thermal stability are paramount.

FAQ

What is the maximum collector-emitter voltage rating for MPSA92RLRMG?

The MPSA92RLRMG has a guaranteed minimum V_CEO rating of −300 Vdc under specified test conditions (I_C = −1.0 mA, I_B = 0). This rating is validated per onsemi's published datasheet revision 6 and applies to continuous DC operation at T_A = 25°C. Derating is required above 25°C ambient per the 5.0 mW/°C thermal derating curve.

Does MPSA92RLRMG have Pb-free packaging?

Yes, MPSA92RLRMG is supplied in a Pb-free TO-92 package compliant with RoHS Directive 2011/65/EU. The "G" suffix in the part marking confirms Pb-free construction, and the device meets onsemi's standardized soldering and mounting guidelines for lead-free processes as documented in SOLDERRM/D.

What is the DC current gain (h_FE) range for MPSA92RLRMG at typical operating conditions?

The MPSA92RLRMG exhibits h_FE ≥ 25 at I_C = −1.0 mA and V_CE = −10 Vdc, with no upper limit specified. At I_C = −10 mA, h_FE remains ≥ 25, and at I_C = −30 mA, it holds ≥ 25 for the MPSA92 variant. These values are measured at T_A = 25°C and represent minimum guaranteed performance per onsemi's Electrical Characteristics table.

Can MPSA92RLRMG be used in place of MPSA93 in a design?

No-MPSA92RLRMG and MPSA93 are not interchangeable. While both are PNP TO-92 transistors, MPSA93 has V_CEO = −200 V and V_CBO = −200 V, whereas MPSA92RLRMG is rated for −300 V in both parameters. Substituting MPSA92RLRMG for MPSA93 introduces unnecessary voltage margin but may affect bias network stability due to differing h_FE distributions and capacitance values.

What is the thermal resistance junction-to-ambient (R_JA) for MPSA92RLRMG?

The MPSA92RLRMG has a maximum R_JA of 200°C/W when mounted on a standard FR-4 PCB with no heatsink, per onsemi's Thermal Characteristics table. This value assumes natural convection cooling and defines the worst-case temperature rise from junction to ambient at rated power dissipation (625 mW at T_A = 25°C).

MPSA92RLRMG Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-226-3, TO-92-3 Long Body, Formed Leads

Packaging:: Bulk

Product Status:: Active

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 500 mA

Voltage - Collector Emitter Breakdown (Max):: 300 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 2mA, 20mA

Current - Collector Cutoff (Max):: 250nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 25 @ 30mA, 10V

Power - Max:: 625 mW

Frequency - Transition:: 50MHz

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-92 (TO-226)

MPSA92RLRMG FAQ

1.How can I place an order for MPSA92RLRMG through Aetrix?

Please submit a Request for Quotation (RFQ) for MPSA92RLRMG on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MPSA92RLRMG reliable?

The price and inventory of MPSA92RLRMG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPSA92RLRMG is usually 5 days.

3.What payment methods are accepted for MPSA92RLRMG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPSA92RLRMG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPSA92RLRMG?

MPSA92RLRMG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPSA92RLRMG order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MPSA92RLRMG?

For technical support, including MPSA92RLRMG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPSA92RLRMG requirements.

6.How does Aetrix verify that MPSA92RLRMG is sourced from the original manufacturer or authorized distributors?

All MPSA92RLRMG products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MPSA92RLRMG meets industry standards.

7.What is the process for return or replacement of MPSA92RLRMG?

All MPSA92RLRMG units undergo pre-shipment inspection (PSI). If there is an issue with MPSA92RLRMG, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MPSA92RLRMG part is unused and in its original packaging.

Return procedure for MPSA92RLRMG:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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