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

onsemi MPSW01ARLRP

Name: MPSW01ARLRP
Brand: onsemi
SKU: MPSW01ARLRP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPSW01ARLRP

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

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

Datasheet:: MPSW01ARLRP.pdf

Description:: TRANS NPN 40V 1A TO92

Quantity:: RFQ Add To RFQ list

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Inventory:5,018

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Product details

Overview

MPSW01ARLRP from onsemi is an NPN silicon bipolar junction transistor (BJT) rated for 1.0 W at T_A = 25°C and 2.5 W at T_C = 25°C, with V_CEO = 30 V, I_C = 1000 mA, and h_FE ≥ 55 at I_C = 10 mA. It operates across −55°C to +150°C and is used in low-voltage switching and linear amplification circuits such as power supply regulators and LED drivers.

For engineers reviewing the MPSW01ARLRP datasheet, pinout, applications, or equivalent options, key selection criteria include its TO-92 package thermal resistance (R_JA = 125°C/W), saturation voltage (V_CE(sat) ≤ 0.5 V at I_C/I_B = 10), and DC current gain profile across 10–1000 mA load range.

Technical Context

The MPSW01ARLRP is a general-purpose NPN BJT optimized for medium-current switching and analog amplification. Its design supports continuous collector current up to 1000 mA with guaranteed h_FE ≥ 50 at I_C = 1000 mA and V_CE = 1.0 V, and features f_T = 50 MHz for small-signal bandwidth.

Thermal performance is defined by R_JC = 50°C/W and R_JA = 125°C/W, enabling operation at full power only with adequate PCB copper area or heatsinking. The device exhibits C_obo ≤ 20 pF at V_CB = 10 V, supporting stable high-frequency behavior in switching applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	30 V - Maximum safe collector-emitter voltage before breakdown under open-base conditions.
I_C (continuous)	1000 mA - Sustained collector current capability without derating at T_C = 25°C.
P_D @ T_A = 25°C	1.0 W - Power dissipation limit with no heatsink; requires PCB copper or airflow above ambient.
h_FE (min)	55 - Minimum DC current gain at I_C = 10 mA, ensuring reliable base drive sizing in switch designs.
V_CE(sat)	≤ 0.5 V - Low saturation voltage at I_C = 1000 mA / I_B = 100 mA, minimizing conduction loss in switching mode.
f_T	50 MHz - Transition frequency confirming usable bandwidth for audio and low-speed digital signal amplification.

Pinout & Package

Package: TO-92 (Case 29-10), 3-lead plastic through-hole package with bent leads, Pb-free compliant, rated for 1 W at ambient temperature.

Pin/Terminal	Circuit Role	Design Meaning
1	Emitter	Current exit path; connected to ground or low-side return in common-emitter configurations.
2	Base	Control terminal; requires ~100 mA drive for full saturation at 1 A collector current.
3	Collector	Current entry path; connects to load or supply rail in low-side switch topologies.

Key Features

Feature	Design Value
High current capability	Rated for 1000 mA continuous collector current with validated thermal derating curves.
Low V_CE(sat)	≤ 0.5 V ensures <0.5 W conduction loss at full load, improving efficiency in battery-powered switches.
Wide operating temperature	−55°C to +150°C junction range supports industrial and automotive under-hood environments.
Pb-free construction	RoHS-compliant TO-92 package meets global environmental compliance requirements without solderability compromise.

Applications

Power Supply Regulation	LED Driver Circuit
Use Scenario: Linear pass transistor in adjustable 5–12 V DC output regulators delivering up to 1 A. IC Role / Device Role / Timing Role: NPN BJT configured as emitter-follower to regulate output voltage via feedback control loop. Use Value: Low V_CE(sat) minimizes dropout voltage and heat generation, enabling compact heatsinkless designs.	Use Scenario: Constant-current switch driving high-brightness LED strings in signage and indicator panels. IC Role / Device Role / Timing Role: Low-side current sink controlling LED current with PWM-compatible base drive. Use Value: Guaranteed h_FE ≥ 50 at 1 A allows predictable base resistor selection and stable current regulation.
DC Motor Control	Signal Amplification
Use Scenario: Unidirectional 12 V brushed DC motor driver in consumer appliances and office equipment. IC Role / Device Role / Timing Role: Single-transistor low-side switch activated by microcontroller GPIO. Use Value: 30 V V_CEO headroom accommodates inductive kickback without snubber circuitry.	Use Scenario: Audio preamplifier stage for microphone or sensor signal conditioning in portable devices. IC Role / Device Role / Timing Role: Common-emitter amplifier with 50 MHz f_T supporting bandwidth up to 20 kHz. Use Value: Stable h_FE across 10–100 mA enables consistent gain calibration without trimming.

Power Supply Regulation

LED Driver Circuit

Use Scenario: Linear pass transistor in adjustable 5–12 V DC output regulators delivering up to 1 A.

IC Role / Device Role / Timing Role: NPN BJT configured as emitter-follower to regulate output voltage via feedback control loop.

Use Value: Low V_CE(sat) minimizes dropout voltage and heat generation, enabling compact heatsinkless designs.

Use Scenario: Constant-current switch driving high-brightness LED strings in signage and indicator panels.

IC Role / Device Role / Timing Role: Low-side current sink controlling LED current with PWM-compatible base drive.

Use Value: Guaranteed h_FE ≥ 50 at 1 A allows predictable base resistor selection and stable current regulation.

DC Motor Control

Signal Amplification

Use Scenario: Unidirectional 12 V brushed DC motor driver in consumer appliances and office equipment.

IC Role / Device Role / Timing Role: Single-transistor low-side switch activated by microcontroller GPIO.

Use Value: 30 V V_CEO headroom accommodates inductive kickback without snubber circuitry.

Use Scenario: Audio preamplifier stage for microphone or sensor signal conditioning in portable devices.

IC Role / Device Role / Timing Role: Common-emitter amplifier with 50 MHz f_T supporting bandwidth up to 20 kHz.

Use Value: Stable h_FE across 10–100 mA enables consistent gain calibration without trimming.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN BJT switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MPSW01A	V_CEO = 40 V, V_CBO = 50 V; otherwise identical electrical specs and TO-92 package.	Higher voltage margin suits 24 V systems where 30 V rating is insufficient.	Select MPSW01A when operating above 25 V DC supply or requiring higher breakdown safety margin.
BC337-40	Lower I_C = 800 mA, lower P_D = 625 mW, h_FE = 250–630 (higher but less consistent at high current).	Not suitable for sustained 1 A loads; better for low-power amplification than switching.	Choose BC337-40 only for signal gain stages below 500 mA, not for 1 A switching duty.

Compared with MPSW01A and BC337-40, the MPSW01ARLRP provides optimal balance of 1 A current handling, 30 V rating, and thermal robustness in TO-92-making it preferred for cost-sensitive, medium-power linear and switching applications where reliability at full rated current is required.

Availability

MPSW01ARLRP is available at Aetrix Electronics and suitable for power supply regulation, LED driver circuits, and DC motor control requiring stable component supply, RoHS compliance, and through-hole manufacturability.

Supply support for MPSW01ARLRP 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 management, analog, sensors, and logic solutions for automotive, industrial, and consumer markets.

The MPSW01 series belongs to onsemi's general-purpose bipolar transistor product line, designed for cost-effective, high-reliability discrete switching and amplification in space-constrained through-hole applications.

FAQ

What is the maximum collector current rating for MPSW01ARLRP?

The MPSW01ARLRP is rated for 1000 mA (1 A) continuous collector current at T_C = 25°C. At ambient temperature (T_A = 25°C), derating applies above 25°C at 8.0 mW/°C, limiting usable current without heatsinking. This rating is verified per onsemi's datasheet Figure 2 and Absolute Maximum Ratings table.

Does MPSW01ARLRP have Pb-free packaging?

Yes, MPSW01ARLRP uses a Pb-free TO-92 package, confirmed by the "G" suffix in the ordering code and explicit marking diagram notes in the onsemi datasheet. The device complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level (MSL) requirements for through-hole assembly.

What is the typical DC current gain (h_FE) of MPSW01ARLRP at 1000 mA?

At I_C = 1000 mA, V_CE = 1.0 V, and T_A = 25°C, the MPSW01ARLRP has a minimum h_FE of 50, per the Electrical Characteristics table. Typical values reach 60–70 in production lots, supporting robust base drive design for saturated switching applications.

Can MPSW01ARLRP replace MPSW01A in a 30 V circuit?

Yes, MPSW01ARLRP can replace MPSW01A in 30 V circuits since its V_CEO = 30 V matches the operating voltage, and all other parameters-including pinout, package, and thermal specs-are identical. However, MPSW01A offers higher 40 V V_CEO and should be retained if future voltage margin expansion is planned.

What is the thermal resistance junction-to-ambient (R_JA) for MPSW01ARLRP?

The MPSW01ARLRP has a specified R_JA of 125°C/W under standard JEDEC test conditions (single-layer PCB, no copper pour). This value assumes minimal PCB copper; adding 1 in² of 2 oz copper on the collector pad reduces R_JA to ~65°C/W, enabling higher sustained power dissipation.

MPSW01ARLRP 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:: NPN

Current - Collector (Ic) (Max):: 1 A

Voltage - Collector Emitter Breakdown (Max):: 40 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 100mA, 1A

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 60 @ 100mA, 1V

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)

MPSW01ARLRP FAQ

1.How can I place an order for MPSW01ARLRP through Aetrix?

Please submit a Request for Quotation (RFQ) for MPSW01ARLRP 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 MPSW01ARLRP reliable?

The price and inventory of MPSW01ARLRP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPSW01ARLRP is usually 5 days.

3.What payment methods are accepted for MPSW01ARLRP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPSW01ARLRP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPSW01ARLRP?

MPSW01ARLRP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPSW01ARLRP 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 MPSW01ARLRP?

For technical support, including MPSW01ARLRP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPSW01ARLRP requirements.

6.How does Aetrix verify that MPSW01ARLRP is sourced from the original manufacturer or authorized distributors?

All MPSW01ARLRP 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 MPSW01ARLRP meets industry standards.

7.What is the process for return or replacement of MPSW01ARLRP?

All MPSW01ARLRP units undergo pre-shipment inspection (PSI). If there is an issue with MPSW01ARLRP, 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 MPSW01ARLRP part is unused and in its original packaging.

Return procedure for MPSW01ARLRP:

1.Submit a request within 90 days.

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

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