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onsemi MPSA92RLRP
- Part No.:
- MPSA92RLRP
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-226-3, TO-92-3 Long Body, Formed Leads
- Datasheet:
-
MPSA92RLRP.pdf
- Description:
- TRANS PNP 300V 0.5A TO92
- Quantity:
- Payment:
- Shipping:
Inventory:8,930
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Product details
Overview
MPSA92RLRP from onsemi is a PNP silicon small-signal transistor designed for high-voltage switching and amplification in discrete analog circuits. It features −300 VCEO, −300 VCBO, −5.0 VEBO, −500 mA continuous collector current, and 625 mW power dissipation at TA = 25°C - enabling use in flyback snubbers, relay drivers, and HV bias networks.
For engineers reviewing the MPSA92RLRP datasheet, pinout, applications, or equivalent options, key selection criteria include verified high-voltage blocking capability (−300 V), TO-92 package thermal resistance (RJA = 200 °C/W), DC current gain (hFE ≥ 25 @ IC = −1.0 mA), saturation voltage (VCE(sat) ≤ −0.5 V), and junction temperature range (−55 to +150 °C).
Technical Context
The MPSA92RLRP operates as a high-voltage PNP bipolar junction transistor with fixed emitter-base and collector-base junction structures optimized for stable gain and breakdown performance under reverse-biased conditions. Its design supports linear amplification up to 50 MHz (fT) and maintains reliable cutoff characteristics with ICBO ≤ −0.25 µA at −200 VCB.
Thermal management relies on its TO-92 package's defined RJA = 200 °C/W and RJC = 83.3 °C/W, requiring external heatsinking only above ~300 mW dissipation. Safe operating area (SOA) curves confirm pulsed operation up to 1 A at VCE = 10 V for 10 ms without secondary breakdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −300 V - Supports circuit operation with collector-to-emitter reverse bias up to 300 V without breakdown. |
| IC (cont.) | −500 mA - Enables driving moderate-current loads such as relays or LED strings without derating at 25°C ambient. |
| PD @ TA=25°C | 625 mW - Maximum continuous power dissipation in free-air; requires thermal derating above 25°C (5 mW/°C). |
| hFE | ≥25 @ IC = −1.0 mA - Sufficient DC gain for low-current switching and biasing applications with predictable base drive requirements. |
| VCE(sat) | ≤ −0.5 V @ IC = −20 mA, IB = −2.0 mA - Ensures low conduction loss when used as a saturated switch in HV logic interfaces. |
| fT | 50 MHz - Supports RF amplification and fast-switching applications up to mid-VHF frequencies. |
| TJ Range | −55 to +150 °C - Qualified for industrial and automotive under-hood environments where wide ambient extremes occur. |
Pinout & Package
Package: TO-92 (Case 29-11), molded plastic with bent leads; standardized 3-pin through-hole configuration rated for manual or wave solder assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Current source terminal for PNP operation | Connected to most positive rail in common-emitter configurations; defines reference for base control and collector load placement. |
| 2 (Collector) | Current sink terminal | Attached to load and high-voltage supply; must withstand −300 V reverse bias relative to emitter during off-state. |
| 3 (Base) | Control input for minority-carrier injection | Receives negative current to turn on; requires series resistor to limit IB and ensure VBE(sat) ≤ −0.9 V under full drive. |
Key Features
| Feature | Design Value |
|---|---|
| High VCEO rating | −300 V enables direct interface with 240 VAC-derived rails or flyback transformer secondaries without external clamping. |
| Low leakage ICBO | ≤ −0.25 µA at −200 VCB ensures stable off-state behavior in high-impedance bias networks over temperature. |
| TO-92 mechanical standardization | Compatible with legacy PCB footprints and automated insertion equipment; JEDEC-standardized lead pitch and body dimensions. |
| Wide TJ range | −55 to +150 °C operation allows deployment in unregulated enclosures or near heat-generating components without derating. |
| Verified fT bandwidth | 50 MHz gain-bandwidth product supports audio preamplifier stages and pulse-shaping circuits with minimal phase shift. |
Applications
| Switch-Mode Power Supply Snubber | Industrial Relay Driver |
|---|---|
Use Scenario: Absorbs voltage spikes across MOSFET/IGBT drains during turn-off in offline AC-DC converters. IC Role / Device Role / Timing Role: Discrete PNP clamp transistor configured in active clamp topology to limit dv/dt and reduce EMI. Use Value: −300 VCEO withstands reflected flyback voltages exceeding 250 V, while low VCE(sat) minimizes clamp conduction loss. |
Use Scenario: Drives 24 VDC or 120 VAC coil relays in programmable logic controllers and motor starters. IC Role / Device Role / Timing Role: High-voltage switch interfacing microcontroller GPIO to isolated relay coil via optocoupler or direct drive. Use Value: −500 mA IC supports coils drawing up to 400 mA; TO-92 package simplifies board-level integration with no thermal pad required. |
| High-Voltage Bias Network | Analog Signal Level Shifting |
Use Scenario: Provides stable current source for photomultiplier tube (PMT) anode chains or vacuum tube heater supplies. IC Role / Device Role / Timing Role: Constant-current source using emitter degeneration resistor and regulated base voltage. Use Value: Low ICBO and stable hFE over −55 to +125 °C ensure <1% drift in bias current across industrial temperature range. |
Use Scenario: Shifts TTL/CMOS logic levels to −12 V or −24 V domains in mixed-supply instrumentation systems. IC Role / Device Role / Timing Role: Inverting level translator with controlled rise/fall times via base resistor tuning. Use Value: 50 MHz fT supports clean edge transitions up to 5 MHz; VCE(sat) ≤ −0.5 V guarantees sub-0.5 V output swing error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage PNP transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPSA92G | Pb-free TO-92 variant with identical electrical specs and same marking (MPSA92); RoHS-compliant plating. | No functional difference; suitable for new designs requiring lead-free compliance. | Select MPSA92G when RoHS/REACH certification is mandatory and Pb-free assembly is specified. |
| BC639 | Lower VCEO (−80 V), higher hFE (min 40), same TO-92 package; not rated for >−100 V operation. | Restricted to low-voltage switching (<100 V); unsuitable for snubber or HV bias roles requiring >−200 V rating. | Choose BC639 only for cost-sensitive 24–48 V systems where gain stability and low saturation voltage are prioritized over voltage headroom. |
Compared with MPSA92RLRP, MPSA92G offers identical performance with environmental compliance, while BC639 trades −300 V capability for higher gain and lower cost - making it viable only in sub-100 V applications where voltage margin is not critical.
Availability
MPSA92RLRP is available at Aetrix Electronics and suitable for industrial control systems, power supply protection circuits, and high-voltage signal conditioning requiring stable component supply, long-term obsolescence resilience, and consistent TO-92 mechanical compatibility.
Supply support for MPSA92RLRP 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 specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The MPSA92RLRP belongs to onsemi's legacy high-voltage bipolar transistor family, engineered specifically for robustness in industrial power conversion, relay interfacing, and analog signal conditioning where reliability under sustained high-voltage stress is essential.
FAQ
What is the maximum collector-emitter voltage rating for the MPSA92RLRP?
The MPSA92RLRP has a guaranteed minimum collector-emitter breakdown voltage V(BR)CEO of −300 V at IC = −1.0 mA and IB = 0. This rating is validated per onsemi's published datasheet (Publication Order Number: MPSA92/D, Rev. 6) and applies to continuous DC operation within the specified junction temperature range. Designers must maintain safe operating area margins below this limit under all transient and thermal conditions.
Is the MPSA92RLRP RoHS-compliant?
The MPSA92RLRP is not explicitly marked as Pb-free in its ordering code or datasheet - unlike the MPSA92RLRAG or MPSA92G variants which carry the "G" suffix denoting RoHS compliance. The MPSA92RLRP uses standard tin-lead plating and is intended for legacy or non-RoHS-restricted applications. For compliant alternatives, refer to the MPSA92RLRAG or MPSA92G part numbers.
What is the pin configuration of the MPSA92RLRP in the TO-92 package?
The MPSA92RLRP uses the standard TO-92 (Case 29-11) pinout: Pin 1 is Emitter, Pin 2 is Collector, and Pin 3 is Base - confirmed in the official onsemi package drawing and datasheet Figure 5. This configuration is consistent across all MPSA92 variants and must be observed during PCB layout to avoid functional failure or device damage.
Can the MPSA92RLRP replace the MPSA93 in a circuit?
No - the MPSA92RLRP and MPSA93 are not interchangeable. While both are PNP transistors in TO-92 packages, the MPSA93 has V(BR)CEO = −200 V and V(BR)CBO = −200 V, whereas the MPSA92RLRP is rated for −300 V in both parameters. Substituting MPSA92RLRP for MPSA93 introduces unnecessary voltage margin but may cause gain mismatch (hFE min 25 vs. 40 for MPSA93), affecting base drive design.
What is the thermal resistance from junction to ambient for the MPSA92RLRP?
The MPSA92RLRP has a maximum thermal resistance RJA of 200 °C/W when mounted on a standard FR-4 PCB with minimal copper area, per the onsemi datasheet. This value assumes natural convection cooling and defines the worst-case temperature rise per watt dissipated. For higher-power operation, designers should verify actual board layout thermal performance or consider forced airflow or heatsinking.
MPSA92RLRP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 Long Body, Formed Leads
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- 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)
MPSA92RLRP FAQ
1.How can I place an order for MPSA92RLRP through Aetrix?
Please submit a Request for Quotation (RFQ) for MPSA92RLRP 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 MPSA92RLRP reliable?
The price and inventory of MPSA92RLRP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPSA92RLRP is usually 5 days.
3.What payment methods are accepted for MPSA92RLRP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPSA92RLRP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPSA92RLRP?
MPSA92RLRP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPSA92RLRP 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 MPSA92RLRP?
For technical support, including MPSA92RLRP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPSA92RLRP requirements.
6.How does Aetrix verify that MPSA92RLRP is sourced from the original manufacturer or authorized distributors?
All MPSA92RLRP 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 MPSA92RLRP meets industry standards.
7.What is the process for return or replacement of MPSA92RLRP?
All MPSA92RLRP units undergo pre-shipment inspection (PSI). If there is an issue with MPSA92RLRP, 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 MPSA92RLRP part is unused and in its original packaging.
Return procedure for MPSA92RLRP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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