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onsemi MPSW92RLRA
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- Part No.:
- MPSW92RLRA
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-226-3, TO-92-3 Long Body, Formed Leads
- Datasheet:
-
MPSW92RLRA.pdf
- Description:
- TRANS PNP 300V 0.5A TO92
- Quantity:
- Payment:
- Shipping:
Inventory:9,193
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Product details
Overview
MPSW92RLRA from onsemi is a PNP silicon high-voltage transistor rated for −300 VCEO, −500 mA continuous collector current, and 1.0 W dissipation at TA = 25°C, used in flyback snubber circuits, relay drivers, and HV switching power supplies.
For engineers reviewing the MPSW92RLRA datasheet, pinout, applications, or equivalent options, key selection criteria include verified −300 V breakdown rating, TO-92 package thermal resistance (RJA = 125 °C/W), DC current gain (hFE ≥ 25 at −1.0 mA), saturation voltage (VCE(sat) ≤ −0.5 V), and Pb-free compliance per ordering code suffix.
Technical Context
This PNP bipolar junction transistor operates with emitter-grounded configuration and supports linear amplification and saturated switching. Its −300 VCEO and −300 VCBO ratings enable use in off-line AC/DC primary-side circuits where high reverse blocking is required.
The device exhibits fT = 50 MHz at −10 mA and −20 V, supporting moderate-frequency switching; Ccb = 6.0 pF at −20 V ensures low capacitive loading in high-impedance gate-drive or feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −300 V - Sustains full mains-referenced voltage in offline switch-mode power supply snubbers |
| IC (continuous) | −500 mA - Supports medium-current relay coil and solenoid drive without forced cooling |
| PD @ TA = 25°C | 1.0 W - Enables operation in compact TO-92 packages with natural convection only |
| hFE | 25–40 - Provides predictable base drive requirements across −1 to −30 mA operating range |
| VCE(sat) | ≤ −0.5 V @ −20 mA / −2 mA - Minimizes conduction loss in saturated switching applications |
| fT | 50 MHz - Supports stable operation up to ~5–10 MHz switching in resonant converters |
| RJA | 125 °C/W - Requires heatsinking or derating above ambient > 50°C for sustained 1 W operation |
Pinout & Package
Package: TO-92 (Case 29-10), 1 W through-hole plastic package with bent leads, Pb-free compliant per RLRA suffix.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Current source terminal for PNP operation | Connected to system ground or positive rail return path in common-emitter configurations |
| 2 (Base) | Control input for minority-carrier injection | Requires negative bias relative to emitter to turn on; typical RB = 10–47 kΩ for relay drive |
| 3 (Collector) | High-voltage output terminal | Handles −300 V reverse bias; connected to transformer primary or inductive load anode side |
Key Features
| Feature | Design Value |
|---|---|
| High voltage blocking | −300 VCEO enables direct replacement of legacy 2N6517/2N6520 in CRT flyback and industrial HV supplies |
| TO-92 thermal performance | RJC = 50 °C/W allows localized heat transfer to PCB copper when mounted with short leads |
| Pb-free marking | RLRA suffix confirms RoHS-compliant packaging and traceable Pb-free wafer fabrication |
| Wide temperature range | −55°C to +150°C junction operation supports automotive under-hood and industrial control environments |
Applications
| Flyback Converter Snubber | Electromechanical Relay Driver |
|---|---|
Use Scenario: Absorbs voltage spikes across transformer primary during MOSFET/FET turn-off in offline SMPS. IC Role / Device Role / Timing Role: PNP high-voltage clamp transistor operating in active or saturated mode during transient events. Use Value: −300 VCEO withstands reflected flyback voltage without avalanche stress; 1.0 W rating handles repetitive energy pulses. |
Use Scenario: Switches 24–120 VDC relay coils in PLC I/O modules and industrial controllers. IC Role / Device Role / Timing Role: Medium-current PNP switch providing inverted logic-level interface between microcontroller and inductive load. Use Value: hFE ≥ 25 ensures reliable saturation with ≤2 mA base drive; −0.5 VCE(sat) limits coil power loss. |
| Capacitor Discharge Ignition (CDI) | High-Voltage Signal Generator |
Use Scenario: Triggers spark gap discharge in motorcycle and small-engine CDI systems using stored capacitor energy. IC Role / Device Role / Timing Role: Fast-switching PNP switch discharging HV capacitor into ignition coil primary winding. Use Value: 50 MHz fT and 6 pF Ccb support sub-microsecond rise time; −300 V rating accommodates 200–250 V storage voltages. |
Use Scenario: Generates calibrated HV pulses for sensor calibration, test equipment, and piezoelectric actuator drive. IC Role / Device Role / Timing Role: Linear amplifier or pulsed switch delivering controlled −100 to −250 V output waveforms. Use Value: Stable hFE over −55°C to +150°C ensures consistent pulse amplitude across environmental conditions. |
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 |
|---|---|---|---|
| MPSW92G | Same die, Pb-free TO-92 package; identical electrical specs; no lead bend specification in ordering code | Identical functional use; preferred for RoHS-only compliance without tape-and-reel requirement | Select MPSW92G when bulk or box packaging suffices and reel format is unnecessary |
| 2N6517 | −300 VCEO, −500 mA, but lower fT (25 MHz) and higher VCE(sat) (−1.0 V); obsolete with limited availability | Legacy drop-in in repair scenarios; not recommended for new designs due to aging process and supply risk | Use 2N6517 only for field repair of legacy equipment; MPSW92RLRA offers superior frequency response and modern reliability |
Compared with MPSW92G, MPSW92RLRA specifies tape-and-reel delivery (2000 units) and bent-lead orientation, enabling automated assembly; versus 2N6517, it delivers 2× higher fT and 50% lower VCE(sat), improving efficiency in fast-switching HV circuits.
Availability
MPSW92RLRA is available at Aetrix Electronics and suitable for flyback snubbers, relay drivers, and capacitor discharge ignition systems requiring stable component supply and Pb-free compliance.
Supply support for MPSW92RLRA 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, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The MPSW92RLRA belongs to onsemi's high-voltage discrete transistor family, designed specifically for robust, cost-effective switching in offline power conversion and industrial control applications where reliability at elevated voltage stress is critical.
FAQ
What is the maximum safe operating voltage for MPSW92RLRA in continuous DC blocking?
The MPSW92RLRA is rated for −300 VCEO at TJ = 25°C with IC = −1.0 mA, and −300 VCBO at IC = −100 μA. For continuous DC blocking, derating to ≤ −240 V is recommended above 25°C ambient to maintain reliability margin per thermal and aging guidelines in the onsemi datasheet.
Does MPSW92RLRA support surface-mount assembly?
No, MPSW92RLRA is packaged exclusively in TO-92 (Case 29-10), a through-hole plastic package with bent leads. It is not available in SMT variants such as SOT-23 or SC-70. Automated placement requires axial or radial lead feeders compatible with TO-92 tape-and-reel format.
What is the base-emitter saturation voltage for MPSW92RLRA under typical drive conditions?
The MPSW92RLRA exhibits VBE(sat) ≤ −0.9 V at IC = −20 mA and IB = −2.0 mA, per the onsemi datasheet. This value remains stable across −55°C to +125°C, enabling predictable base resistor sizing in relay driver and snubber gate-control circuits.
How does the thermal resistance of MPSW92RLRA affect PCB layout?
With RJA = 125 °C/W, the MPSW92RLRA requires ≥ 1 cm² of 2-oz copper pour connected to the emitter pad for 1 W operation at 50°C ambient. Via stitching to inner ground planes improves RJC utilization; avoid routing high-impedance signals near the collector pad due to 6 pF Ccb.
Is MPSW92RLRA suitable for linear amplifier applications?
Yes - the MPSW92RLRA supports linear operation with hFE = 25–40 across −1 to −30 mA and VCE = −10 V, and fT = 50 MHz enables bandwidth-limited audio or signal conditioning up to ~5 MHz. However, its 1.0 W power limit restricts use to low-power Class-A stages with careful thermal design.
MPSW92RLRA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 Long Body, Formed Leads
- Packaging:
- Tape & Reel (TR)
- 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:
- 1 W
- Frequency - Transition:
- 50MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92 (TO-226)
MPSW92RLRA FAQ
1.How can I place an order for MPSW92RLRA through Aetrix?
Please submit a Request for Quotation (RFQ) for MPSW92RLRA 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 MPSW92RLRA reliable?
The price and inventory of MPSW92RLRA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPSW92RLRA is usually 5 days.
3.What payment methods are accepted for MPSW92RLRA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPSW92RLRA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPSW92RLRA?
MPSW92RLRA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPSW92RLRA 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 MPSW92RLRA?
For technical support, including MPSW92RLRA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPSW92RLRA requirements.
6.How does Aetrix verify that MPSW92RLRA is sourced from the original manufacturer or authorized distributors?
All MPSW92RLRA 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 MPSW92RLRA meets industry standards.
7.What is the process for return or replacement of MPSW92RLRA?
All MPSW92RLRA units undergo pre-shipment inspection (PSI). If there is an issue with MPSW92RLRA, 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 MPSW92RLRA part is unused and in its original packaging.
Return procedure for MPSW92RLRA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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