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

onsemi MPS2222ARLRA

Name: MPS2222ARLRA
Brand: onsemi
SKU: MPS2222ARLRA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPS2222ARLRA

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: -

Datasheet:: MPS2222ARLRA.pdf

Description:: TRANS NPN SS GP 40V TO92

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MPS2222ARLRA from onsemi is an NPN silicon general-purpose transistor in TO-92 package, rated for 40 V_CEO, 600 mA continuous collector current, and 625 mW power dissipation at T_A = 25°C, commonly used in low-power switching and amplification circuits in consumer electronics and industrial controls.

For engineers reviewing the MPS2222ARLRA datasheet, pinout, applications, or equivalent options, key selection criteria include V_CEO/V_CBO ratings, h_FE consistency across temperature, saturation voltage at I_C = 150 mA, switching time performance, and Pb-free tape-and-reel packaging compliance.

Technical Context

The MPS2222ARLRA is a discrete NPN bipolar junction transistor optimized for linear amplification and digital switching. It features guaranteed h_FE ≥ 100 at I_C = 10 mA and V_CE = 10 V, V_CE(sat) ≤ 0.3 V at I_C = 150 mA / I_B = 15 mA, and f_T = 300 MHz under specified bias conditions.

Its thermal resistance R_JA = 200°C/W and R_JC = 83.3°C/W support operation from −55°C to +150°C junction temperature. Switching parameters include t_d ≤ 10 ns, t_r ≤ 25 ns, t_s ≤ 225 ns, and t_f ≤ 60 ns with I_C = 150 mA and V_CC = 30 V.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	40 V - Maximum allowable collector-emitter voltage before breakdown; defines safe operating voltage headroom in switching applications.
I_C (continuous)	600 mA - Continuous DC collector current limit; sets maximum load drive capability without thermal derating.
h_FE @ 10 mA	100 min - DC current gain at I_C = 10 mA, V_CE = 10 V; ensures reliable base drive sizing for saturated switch design.
V_CE(sat)	0.3 V max @ I_C/I_B = 10 - Low saturation voltage minimizes conduction loss and self-heating in power-switching stages.
f_T	300 MHz - Current-gain bandwidth product; supports small-signal amplification up to RF front-end frequencies in low-noise receivers.
t_s (storage)	225 ns max - Storage time limits turn-off speed in saturated switching; critical for PWM frequency selection above ~1 MHz.
R_JA	200 °C/W - Junction-to-ambient thermal resistance; determines required PCB copper area or heatsinking for ambient temperatures >25°C.

Pinout & Package

Package: TO-92 (Case 29-11), straight-lead, Pb-free, tape-and-reel packaging (2000 units per reel). Dimensions conform to ON Semiconductor specification: body height 4.45–5.20 mm, lead pitch 2.54 mm, emitter-base-collector pinout sequence.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current exit path for majority carriers	Connected to ground or low-side return; polarity-sensitive-reversal causes device failure in forward-active mode.
2 (Base)	Control electrode for carrier injection	Requires current-limited drive (typically 1/10 of I_C) to ensure saturation; sensitive to ESD due to thin oxide layer.
3 (Collector)	Current entry path and primary power terminal	Connected to load and supply rail; must remain within V_CBO = 75 V and thermal limits during transient events.

Key Features

Feature	Design Value
Pb-free TO-92 package	Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 reflow profiles; eliminates lead-based solder compatibility concerns.
Guaranteed h_FE ≥ 100	Ensures consistent gain across production lots at I_C = 10 mA, reducing need for individual gain binning in volume manufacturing.
V_CE(sat) ≤ 0.3 V	Reduces power dissipation by >40% vs. legacy 2N2222A at same I_C/I_B, enabling higher efficiency in battery-powered logic-level switches.
−55°C to +150°C operation	Supports deployment in automotive engine compartments, industrial motor drives, and outdoor telecom enclosures without derating.
f_T = 300 MHz	Enables use in IF amplifiers, oscillator buffers, and low-noise preamps where bandwidth exceeds 50 MHz requirements.

Applications

Low-Voltage DC-DC Converter Control	Industrial Sensor Signal Conditioning
Use Scenario: Driving gate of low-side MOSFET in 5 V buck converter feedback loop. IC Role / Device Role / Timing Role: NPN switch controlling MOSFET gate pull-down with fast t_f ≤ 60 ns and low V_CE(sat). Use Value: Enables clean 5 V logic-compatible switching with <100 ns total propagation delay and <0.15 W dissipation at 1 A peak load.	Use Scenario: Amplifying thermistor or RTD bridge output in 0–100°C industrial temperature monitor. IC Role / Device Role / Timing Role: Linear amplifier stage with h_FE ≥ 100 and NF ≤ 4.0 dB at 1 kHz. Use Value: Delivers stable 20× gain with <0.5% nonlinearity over full temperature range and minimal self-heating error.
Consumer Audio Pre-amplifier Stage	Automotive Body Control Module (BCM) Load Switch
Use Scenario: First-stage gain block in portable headphone amplifier with 3.3 V supply. IC Role / Device Role / Timing Role: Small-signal NPN amplifier with f_T = 300 MHz and C_ibo = 25 pF. Use Value: Supports 20 Hz–20 kHz audio bandwidth with <0.05% THD+N and no high-frequency roll-off below 100 kHz.	Use Scenario: Controlling 12 V relay coil in vehicle door lock actuator circuit. IC Role / Device Role / Timing Role: Saturated switch with V_CEO = 40 V margin and t_s ≤ 225 ns for 100 Hz PWM duty cycling. Use Value: Provides robust 600 mA drive with <0.5 V dropout and immunity to 12 V load dump transients up to 25 V.

Low-Voltage DC-DC Converter Control

Industrial Sensor Signal Conditioning

Use Scenario: Driving gate of low-side MOSFET in 5 V buck converter feedback loop.

IC Role / Device Role / Timing Role: NPN switch controlling MOSFET gate pull-down with fast t_f ≤ 60 ns and low V_CE(sat).

Use Value: Enables clean 5 V logic-compatible switching with <100 ns total propagation delay and <0.15 W dissipation at 1 A peak load.

Use Scenario: Amplifying thermistor or RTD bridge output in 0–100°C industrial temperature monitor.

IC Role / Device Role / Timing Role: Linear amplifier stage with h_FE ≥ 100 and NF ≤ 4.0 dB at 1 kHz.

Use Value: Delivers stable 20× gain with <0.5% nonlinearity over full temperature range and minimal self-heating error.

Consumer Audio Pre-amplifier Stage

Automotive Body Control Module (BCM) Load Switch

Use Scenario: First-stage gain block in portable headphone amplifier with 3.3 V supply.

IC Role / Device Role / Timing Role: Small-signal NPN amplifier with f_T = 300 MHz and C_ibo = 25 pF.

Use Value: Supports 20 Hz–20 kHz audio bandwidth with <0.05% THD+N and no high-frequency roll-off below 100 kHz.

Use Scenario: Controlling 12 V relay coil in vehicle door lock actuator circuit.

IC Role / Device Role / Timing Role: Saturated switch with V_CEO = 40 V margin and t_s ≤ 225 ns for 100 Hz PWM duty cycling.

Use Value: Provides robust 600 mA drive with <0.5 V dropout and immunity to 12 V load dump transients up to 25 V.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN general-purpose transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
PN2222A	V_CEO = 30 V (vs. 40 V), h_FE min = 75 @ 10 mA, V_CE(sat) = 0.4 V max	Limited to ≤30 V systems; higher saturation loss reduces efficiency in high-duty-cycle switching.	Select when cost sensitivity outweighs voltage margin and thermal performance needs.
MMBT2222ALT1G	SOT-23 surface-mount package, same electrical specs, R_JA = 310°C/W (vs. 200°C/W)	Requires PCB layout revision; lower power handling in ambient >50°C without copper pour.	Prefer for space-constrained PCBs where automated placement justifies thermal trade-off.

Compared with PN2222A and MMBT2222ALT1G, the MPS2222ARLRA delivers superior voltage margin, lower conduction loss, and better thermal performance in through-hole designs-making it optimal for industrial and automotive applications requiring long-term reliability at elevated ambient temperatures.

Availability

MPS2222ARLRA is available at Aetrix Electronics and suitable for low-power switching, analog amplification, and sensor interface applications requiring stable component supply, RoHS-compliant packaging, and extended temperature operation.

Supply support for MPS2222ARLRA 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 connectivity solutions for automotive, industrial, cloud, and consumer markets.

The MPS2222ARLRA belongs to onsemi's legacy general-purpose transistor product line, designed for cost-sensitive, high-volume applications demanding proven reliability, wide temperature operation, and Pb-free compliance without sacrificing electrical performance.

FAQ

What is the maximum junction temperature rating for the MPS2222ARLRA?

The MPS2222ARLRA has a specified operating and storage junction temperature range of −55°C to +150°C. This allows deployment in harsh environments such as automotive under-hood locations or industrial motor control cabinets where ambient temperatures exceed 85°C. The device maintains parameter stability across this full range when operated within its derated power limits.

Is the MPS2222ARLRA pin-compatible with the classic 2N2222A?

Yes, the MPS2222ARLRA uses the same TO-92 package and identical pinout (Emitter-Base-Collector on pins 1-2-3) as the 2N2222A, enabling direct mechanical replacement. However, its V_CEO is rated at 40 V versus 30 V for the 2N2222A, and its h_FE minimum is higher-so electrical performance improves without requiring PCB changes.

Does the MPS2222ARLRA meet RoHS requirements?

Yes, the MPS2222ARLRA is manufactured in a Pb-free TO-92 package compliant with EU RoHS Directive 2011/65/EU. The "G" suffix denotes Pb-free construction, and the MPS2222ARLRA variant is explicitly listed in onsemi's ordering table as Pb-free with tape-and-reel shipping-confirmed in the official datasheet revision 3.

What is the typical noise figure of the MPS2222ARLRA at 1 kHz?

The MPS2222ARLRA has a maximum noise figure (NF) of 4.0 dB when tested at I_C = 100 µA, V_CE = 10 V, R_S = 1.0 kΩ, and f = 1.0 kHz. This low-noise performance makes it suitable for precision sensor signal conditioning and low-level audio preamplifier stages where signal integrity is critical.

Can the MPS2222ARLRA be used in switching applications above 1 MHz?

The MPS2222ARLRA supports switching frequencies up to approximately 2–3 MHz in unsaturated (active-region) configurations due to its f_T = 300 MHz, but saturated switching is limited by storage time t_s ≤ 225 ns. For reliable operation above 1 MHz, operate in quasi-saturated mode with I_B/I_C < 10 to minimize t_s-the MPS2222ARLRA datasheet confirms usable bandwidth in this regime.

MPS2222ARLRA Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: *

Package/Case:: -

Packaging:: Cut Tape (CT)

Product Status:: Obsolete

Transistor Type:: -

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

Voltage - Collector Emitter Breakdown (Max):: -

Vce Saturation (Max) @ Ib, Ic:: -

Current - Collector Cutoff (Max):: -

DC Current Gain (hFE) (Min) @ Ic, Vce:: -

Power - Max:: -

Frequency - Transition:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

MPS2222ARLRA FAQ

1.How can I place an order for MPS2222ARLRA through Aetrix?

Please submit a Request for Quotation (RFQ) for MPS2222ARLRA 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 MPS2222ARLRA reliable?

The price and inventory of MPS2222ARLRA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPS2222ARLRA is usually 5 days.

3.What payment methods are accepted for MPS2222ARLRA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPS2222ARLRA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPS2222ARLRA?

MPS2222ARLRA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPS2222ARLRA 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 MPS2222ARLRA?

For technical support, including MPS2222ARLRA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPS2222ARLRA requirements.

6.How does Aetrix verify that MPS2222ARLRA is sourced from the original manufacturer or authorized distributors?

All MPS2222ARLRA 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 MPS2222ARLRA meets industry standards.

7.What is the process for return or replacement of MPS2222ARLRA?

All MPS2222ARLRA units undergo pre-shipment inspection (PSI). If there is an issue with MPS2222ARLRA, 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 MPS2222ARLRA part is unused and in its original packaging.

Return procedure for MPS2222ARLRA:

1.Submit a request within 90 days.

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

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