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

onsemi MPSA05_D26Z

Name: MPSA05_D26Z
Brand: onsemi
SKU: MPSA05_D26Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPSA05_D26Z

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-226-3, TO-92-3 (TO-226AA) Formed Leads

Datasheet:: MPSA05_D26Z.pdf

Description:: TRANS NPN 60V 0.5A TO-92-3

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Product details

Overview

MPSA05_D26Z from ON Semiconductor is an NPN general-purpose amplifier transistor rated for 60 V V_CEO, 500 mA I_C, and 625 mW P_D in TO-92 package, designed for low-to-medium current linear amplification and switching in consumer and industrial signal conditioning circuits.

For engineers reviewing the MPSA05_D26Z datasheet, pinout, applications, or equivalent options, key selection criteria include its 100 MHz f_T, h_FE ≥ 100 at 10–100 mA, V_CE(sat) ≤ 0.25 V, and compatibility with through-hole prototyping and legacy board designs requiring TO-92 footprint.

Technical Context

This device operates as a discrete silicon NPN bipolar junction transistor optimized for general-purpose amplification up to 300 mA collector current. Its design supports DC-coupled small-signal gain stages and saturated-switching configurations with validated V_BE(on) = 1.2 V and V_(BR)CEO = 60 V.

Thermal performance is defined by R_θJA = 200 °C/W on FR-4 PCB and derating of 5.0 mW/°C above 25°C ambient. It is not rated for automotive, safety-critical, or medical implant applications per manufacturer's authorized use policy.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	60 V - Maximum safe collector-emitter voltage before breakdown under open-base condition
I_C	500 mA - Continuous collector current rating defining maximum linear/saturated load drive capability
P_D	625 mW - Total power dissipation limit at 25°C ambient, critical for thermal layout sizing
h_FE	≥100 - Minimum DC current gain at both 10 mA and 100 mA I_C, ensuring predictable base drive requirements
f_T	100 MHz - Unity-gain bandwidth confirming suitability for audio and low-RF amplification
V_CE(sat)	≤0.25 V - Low saturation voltage at I_C = 100 mA / I_B = 10 mA, minimizing conduction loss in switching mode

Pinout & Package

Package: TO-92 (3-lead molded plastic), straight or bent lead option, compatible with standard through-hole mounting and wave soldering.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current exit path from transistor	Reference node for bias network; connects to ground or emitter resistor in common-emitter configuration
2 (Base)	Control terminal for minority carrier injection	Receives current-limited drive signal; requires series resistor to limit I_B and ensure h_FE-based saturation
3 (Collector)	Current entry path into transistor	Connects to load or supply rail; carries full I_C and dissipates majority of power in active/saturation modes

Key Features

Feature	Design Value
High DC current gain	h_FE ≥ 100 across 10–100 mA I_C, enabling stable biasing with minimal base drive overhead
Low saturation voltage	V_CE(sat) ≤ 0.25 V ensures <1% voltage drop across transistor when used as a switch at rated current
Validated RF performance	f_T = 100 MHz supports audio preamplifiers, tone control stages, and low-frequency oscillator circuits
Robust thermal margin	R_θJA = 200 °C/W allows operation up to +125°C junction temperature with modest PCB copper area

Applications

Audio Signal Amplification	DC Motor Control Interface
Use Scenario: Amplifying line-level analog signals in portable audio mixers and headphone drivers. IC Role / Device Role / Timing Role: NPN amplifier in common-emitter configuration providing 20–40 dB voltage gain with low distortion. Use Value: Delivers clean gain with V_CE(sat) ≤ 0.25 V and h_FE ≥ 100, reducing need for precision biasing components.	Use Scenario: Driving small brushed DC motors (≤5 W) in office automation devices and lab equipment. IC Role / Device Role / Timing Role: Saturated-switch BJT controlling motor current via PWM or on/off logic signals. Use Value: Supports 500 mA continuous I_C and withstands 60 V inductive flyback with external clamp diode.
Sensor Signal Conditioning	Legacy Logic-Level Translation
Use Scenario: Buffering and amplifying output from thermistor, phototransistor, or potentiometer-based sensors. IC Role / Device Role / Timing Role: Emitter-follower or common-emitter stage converting high-impedance sensor output to low-impedance drive. Use Value: High h_FE and low V_BE(on) = 1.2 V enable accurate DC-coupled amplification without level-shifting circuitry.	Use Scenario: Interfacing 3.3 V microcontroller GPIO to 5 V TTL logic or relay driver inputs. IC Role / Device Role / Timing Role: Single-transistor level shifter operating in active or saturated region depending on input swing. Use Value: Validated V_(BR)EBO = 4.0 V and V_(BR)CEO = 60 V allow safe operation across mixed-voltage domains.

Audio Signal Amplification

DC Motor Control Interface

Use Scenario: Amplifying line-level analog signals in portable audio mixers and headphone drivers.

IC Role / Device Role / Timing Role: NPN amplifier in common-emitter configuration providing 20–40 dB voltage gain with low distortion.

Use Value: Delivers clean gain with V_CE(sat) ≤ 0.25 V and h_FE ≥ 100, reducing need for precision biasing components.

Use Scenario: Driving small brushed DC motors (≤5 W) in office automation devices and lab equipment.

IC Role / Device Role / Timing Role: Saturated-switch BJT controlling motor current via PWM or on/off logic signals.

Use Value: Supports 500 mA continuous I_C and withstands 60 V inductive flyback with external clamp diode.

Sensor Signal Conditioning

Legacy Logic-Level Translation

Use Scenario: Buffering and amplifying output from thermistor, phototransistor, or potentiometer-based sensors.

IC Role / Device Role / Timing Role: Emitter-follower or common-emitter stage converting high-impedance sensor output to low-impedance drive.

Use Value: High h_FE and low V_BE(on) = 1.2 V enable accurate DC-coupled amplification without level-shifting circuitry.

Use Scenario: Interfacing 3.3 V microcontroller GPIO to 5 V TTL logic or relay driver inputs.

IC Role / Device Role / Timing Role: Single-transistor level shifter operating in active or saturated region depending on input swing.

Use Value: Validated V_(BR)EBO = 4.0 V and V_(BR)CEO = 60 V allow safe operation across mixed-voltage domains.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC547B	Lower V_CEO = 45 V; h_FE range 200–450; same TO-92 package	Preferred where higher gain and lower voltage stress are acceptable	Select BC547B if tighter h_FE tolerance and reduced V_CEO margin are acceptable for cost-sensitive consumer designs
2N3904	Lower I_C = 200 mA; P_D = 625 mW; V_CEO = 40 V; same pinout	Used in low-power signal routing and digital logic interfacing	Choose 2N3904 only for sub-200 mA loads where its narrower voltage and current ratings are sufficient

Compared with BC547B and 2N3904, MPSA05_D26Z provides higher voltage headroom (60 V), higher current capability (500 mA), and guaranteed h_FE ≥ 100 at 100 mA-making it preferred for robust industrial interface and medium-power analog stages where reliability under moderate stress is required.

Availability

MPSA05_D26Z is available at Aetrix Electronics and suitable for audio signal amplification, DC motor control interfaces, sensor signal conditioning, and legacy logic-level translation requiring stable component supply and long-term TO-92 footprint compatibility.

Supply support for MPSA05_D26Z 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

ON Semiconductor is a global semiconductor supplier delivering energy-efficient power and signal management solutions for automotive, industrial, cloud computing, and consumer electronics.

MPSA05_D26Z belongs to ON Semiconductor's general-purpose bipolar transistor product line, engineered for cost-effective, reliable amplification and switching in non-safety-critical commercial and industrial electronics.

FAQ

What is the maximum collector-emitter voltage rating for MPSA05_D26Z?

The MPSA05_D26Z has a V_CEO rating of 60 V, meaning it can safely sustain up to 60 volts between collector and emitter with the base open. This rating is verified per the absolute maximum ratings table in the official ON Semiconductor datasheet and applies at T_A = 25°C. Exceeding this voltage risks avalanche breakdown and permanent device damage.

Does MPSA05_D26Z support switching applications?

Yes, MPSA05_D26Z supports switching applications due to its low V_CE(sat) of ≤ 0.25 V at I_C = 100 mA and I_B = 10 mA, and its ability to handle 500 mA continuous collector current. It is commonly used in saturated-switch configurations for relay drivers, LED arrays, and small DC motor control-provided external flyback protection is implemented for inductive loads.

What package type is used for MPSA05_D26Z?

MPSA05_D26Z uses the TO-92 package-a 3-lead through-hole molded plastic case with standardized pinout (Emitter-Base-Collector). This package supports manual prototyping, wave soldering, and legacy board compatibility. The marking "MPSA05" appears on the device body, consistent with ON Semiconductor's post-Fairchild integration nomenclature.

What is the minimum DC current gain (h_FE) of MPSA05_D26Z?

The minimum h_FE of MPSA05_D26Z is 100, specified at two operating points: I_C = 10 mA and I_C = 100 mA, both at V_CE = 1.0 V and T_A = 25°C. This guaranteed minimum ensures predictable base drive requirements across its intended current range, distinguishing it from variants with looser gain bins.

Is MPSA05_D26Z suitable for automotive applications?

No, MPSA05_D26Z is not qualified for automotive applications. Per ON Semiconductor's authorized use policy, it is designated as a standard commercial-grade device and explicitly excluded from use in automotive, aerospace, or safety-critical systems-including FDA Class 3 medical devices or life-support equipment-unless separately approved in writing by ON Semiconductor.

MPSA05_D26Z Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-226-3, TO-92-3 (TO-226AA) Formed Leads

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Transistor Type:: NPN

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

Voltage - Collector Emitter Breakdown (Max):: 60 V

Vce Saturation (Max) @ Ib, Ic:: 250mV @ 10mA, 100mA

Current - Collector Cutoff (Max):: 100nA

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

Power - Max:: 625 mW

Frequency - Transition:: 100MHz

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-92-3

MPSA05_D26Z FAQ

1.How can I place an order for MPSA05_D26Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MPSA05_D26Z 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 MPSA05_D26Z reliable?

The price and inventory of MPSA05_D26Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPSA05_D26Z is usually 5 days.

3.What payment methods are accepted for MPSA05_D26Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPSA05_D26Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPSA05_D26Z?

MPSA05_D26Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPSA05_D26Z 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 MPSA05_D26Z?

For technical support, including MPSA05_D26Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPSA05_D26Z requirements.

6.How does Aetrix verify that MPSA05_D26Z is sourced from the original manufacturer or authorized distributors?

All MPSA05_D26Z 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 MPSA05_D26Z meets industry standards.

7.What is the process for return or replacement of MPSA05_D26Z?

All MPSA05_D26Z units undergo pre-shipment inspection (PSI). If there is an issue with MPSA05_D26Z, 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 MPSA05_D26Z part is unused and in its original packaging.

Return procedure for MPSA05_D26Z:

1.Submit a request within 90 days.

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

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