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onsemi MPSW42RLRAG
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- Part No.:
- MPSW42RLRAG
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-226-3, TO-92-3 Long Body, Formed Leads
- Datasheet:
-
MPSW42RLRAG.pdf
- Description:
- TRANS NPN 300V 0.5A TO92
- Quantity:
- Payment:
- Shipping:
Inventory:2,424
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Product details
Overview
MPSW42RLRAG from onsemi is an NPN silicon high-voltage transistor rated for 300 VCEO, 500 mA continuous collector current, and 1.0 W dissipation at TA = 25°C in a TO-92 package. It serves as a switching or linear amplifier in high-voltage industrial power supplies, relay drivers, and CRT horizontal deflection circuits where robust breakdown margin and thermal stability are required.
For engineers reviewing the MPSW42RLRAG datasheet, pinout, applications, or equivalent options, key selection criteria include verified VCEO/VCBO = 300 V, hFE ≥ 25 at 1 mA, fT = 50 MHz, RJA = 125 °C/W, and Pb-free TO-92 compliance per JESD97.
Technical Context
The MPSW42RLRAG is a discrete NPN bipolar junction transistor optimized for high-voltage switching with low saturation voltage (VCE(sat) ≤ 0.5 V at IC/IB = 10) and stable DC current gain across temperature (hFE = 25–40 at 1–30 mA). Its 3.0 pF Ccb and 50 MHz fT support moderate-speed switching up to ~10 MHz in flyback and line-output stages.
Designed for operation from −55°C to +150°C junction temperature, it features 50 °C/W junction-to-case thermal resistance and requires heatsinking only when operating above 1.0 W at elevated ambient temperatures. The device uses standard silicon epitaxial base technology with no integrated protection diodes or bias resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 300 Vdc - Withstands 300 V between collector and emitter with base open, enabling use in 240 VAC-derived supply rails and CRT anode circuits. |
| IC (continuous) | 500 mAdc - Supports load currents up to 500 mA in relay coil drivers and low-power SMPS primary switches without derating at 25°C. |
| PD @ TA = 25°C | 1.0 W - Delivers full 1 W dissipation in free-air conditions; requires PCB copper area or heatsink above 75°C ambient. |
| hFE | 25–40 - Provides predictable current amplification at IC = 1–30 mA, simplifying base drive design for saturated switching. |
| fT | 50 MHz - Enables reliable operation in horizontal deflection oscillators and medium-frequency PWM control loops. |
| RJA | 125 °C/W - Limits junction rise to 125°C at 1 W in standard TO-92 mounting; mandates thermal relief pads for sustained >0.5 W operation. |
Pinout & Package
Package: TO-92 (Case 29-10), Pb-free, straight-lead or bent-lead configuration, 2000 units per tape-and-reel reel.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter | Reference terminal for base-emitter junction; connects to ground or low-side return path in common-emitter configurations. |
| 2 | Base | Current-controlled input node; requires series resistor to limit IB for saturation (e.g., 2.0 mA typical for 20 mA IC). |
| 3 | Collector | High-voltage output node; handles up to 300 V with minimal leakage (ICBO ≤ 0.1 A) under reverse bias. |
Key Features
| Feature | Design Value |
|---|---|
| High breakdown voltage | VCEO = VCBO = 300 V enables direct interface with 240 VAC rectified rails and CRT EHT circuits without external snubbers. |
| Low VCE(sat) | ≤ 0.5 V at IC = 20 mA / IB = 2 mA reduces conduction loss and self-heating in switching applications. |
| Wide temperature range | −55°C to +150°C operation supports deployment in automotive engine compartments and industrial motor controls. |
| Pb-free TO-92 packaging | RoHS-compliant construction meets IPC/JEDEC J-STD-020 moisture sensitivity level 1 and JEDEC 97 requirements. |
Applications
| Industrial Power Supplies | Relay & Solenoid Drivers |
|---|---|
|
Use Scenario: Switching element in 12–24 VDC isolated auxiliary supplies with 200–300 V transient tolerance. IC Role / Device Role / Timing Role: High-voltage NPN switch controlling primary-side current in flyback converters. Use Value: 300 V VCEO eliminates need for series-connected transistors or voltage clamping networks. |
Use Scenario: Driving 12–48 VDC relays and solenoids in PLC I/O modules and HVAC controllers. IC Role / Device Role / Timing Role: Saturated switch interfacing microcontroller GPIO to inductive loads. Use Value: VCE(sat) ≤ 0.5 V minimizes power loss and thermal stress during continuous 500 mA coil activation. |
| CRT Horizontal Deflection | High-Voltage Signal Amplification |
|
Use Scenario: Line output transistor in monochrome monitor deflection yoke circuits with 20–30 kHz switching. IC Role / Device Role / Timing Role: High-speed, high-voltage switch driving flyback transformer primary. Use Value: 50 MHz fT and 3.0 pF Ccb ensure clean edge response and minimal phase lag at 25 kHz. |
Use Scenario: Linear amplifier stage in photomultiplier tube (PMT) signal conditioning with 100–300 V collector supply. IC Role / Device Role / Timing Role: Common-emitter voltage amplifier with fixed bias network. Use Value: Stable hFE across −55°C to +150°C maintains gain consistency in radiation-hardened instrumentation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage NPN transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPSW42RLRA | Same die, SnPb lead finish; RJA identical; no Pb-free marking. | Acceptable where RoHS exemption applies; not suitable for new consumer/medical designs requiring Pb-free compliance. | Select MPSW42RLRA only if legacy SnPb assembly process is mandated and Pb-free is not required. |
| 2N5551 | Lower VCEO = 160 V, higher hFE = 80–250, same TO-92 package; fT = 100 MHz. | Not suitable for >160 V circuits; preferred in low-voltage, high-gain amplifier roles where speed matters more than voltage rating. | Choose 2N5551 only when circuit VCE remains below 140 V and gain linearity is critical. |
Compared with MPSW42RLRA and 2N5551, the MPSW42RLRAG uniquely balances 300 V capability, 1 W power handling, and Pb-free compliance-making it the sole option among the three for RoHS-compliant, high-voltage industrial switching where both breakdown margin and regulatory alignment are mandatory.
Availability
MPSW42RLRAG is available at Aetrix Electronics and suitable for industrial power supplies, relay drivers, CRT deflection circuits, and high-voltage signal amplifiers requiring stable component supply and full RoHS compliance.
Supply support for MPSW42RLRAG 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 manufacturer specializing in energy-efficient power, analog, sensor, and logic solutions for automotive, industrial, and cloud infrastructure markets.
The MPSW42RLRAG belongs to onsemi's high-voltage discrete transistor family, engineered specifically for reliability-critical switching applications demanding 300 V standoff, wide temperature operation, and Pb-free manufacturability.
FAQ
What is the maximum collector-emitter voltage rating for MPSW42RLRAG?
The MPSW42RLRAG has a guaranteed minimum V(BR)CEO of 300 Vdc at IC = 1.0 mAdc and IB = 0. This rating is validated per JEDEC JESD24 and applies to the MPSW42RLRAG in its standard TO-92 package with proper PCB layout and thermal management.
Is MPSW42RLRAG pin-compatible with MPSW42RLRA?
Yes, the MPSW42RLRAG is mechanically and electrically pin-compatible with MPSW42RLRA - both use identical TO-92 package (Case 29-10) with Pin 1 = Emitter, Pin 2 = Base, Pin 3 = Collector. The only difference is Pb-free plating on MPSW42RLRAG versus SnPb on MPSW42RLRA.
What is the thermal resistance junction-to-ambient for MPSW42RLRAG?
The MPSW42RLRAG has a specified RJA of 125 °C/W under standard JEDEC test conditions (single-layer 1 in² copper pad, 1 oz Cu, no airflow). This value assumes the device is mounted on a PCB with minimal thermal relief; actual RJA improves with added copper area or forced air cooling.
Does MPSW42RLRAG include built-in protection features like clamp diodes or thermal shutdown?
No, the MPSW42RLRAG is a fundamental NPN bipolar transistor without integrated protection circuitry. It contains no base-emitter clamp diodes, no thermal shutdown, and no overcurrent limiting. External components such as flyback diodes and base resistors must be provided per application requirements.
What is the typical DC current gain (hFE) of MPSW42RLRAG at 10 mA collector current?
At IC = 10 mAdc and VCE = 10 Vdc, the MPSW42RLRAG exhibits hFE ≥ 40 (minimum) per the official onsemi datasheet. This gain is measured at TA = 25°C and remains ≥ 25 at IC = 1 mAdc and ≥ 40 at IC = 30 mAdc under the same conditions.
MPSW42RLRAG 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:
- NPN
- 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):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 40 @ 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)
MPSW42RLRAG FAQ
1.How can I place an order for MPSW42RLRAG through Aetrix?
Please submit a Request for Quotation (RFQ) for MPSW42RLRAG 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 MPSW42RLRAG reliable?
The price and inventory of MPSW42RLRAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPSW42RLRAG is usually 5 days.
3.What payment methods are accepted for MPSW42RLRAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPSW42RLRAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPSW42RLRAG?
MPSW42RLRAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPSW42RLRAG 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 MPSW42RLRAG?
For technical support, including MPSW42RLRAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPSW42RLRAG requirements.
6.How does Aetrix verify that MPSW42RLRAG is sourced from the original manufacturer or authorized distributors?
All MPSW42RLRAG 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 MPSW42RLRAG meets industry standards.
7.What is the process for return or replacement of MPSW42RLRAG?
All MPSW42RLRAG units undergo pre-shipment inspection (PSI). If there is an issue with MPSW42RLRAG, 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 MPSW42RLRAG part is unused and in its original packaging.
Return procedure for MPSW42RLRAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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