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

onsemi MPS2222RLRM

Name: MPS2222RLRM
Brand: onsemi
SKU: MPS2222RLRM
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPS2222RLRM

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

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

Datasheet:: MPS2222RLRM.pdf

Description:: TRANS NPN 30V 0.6A TO92

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MPS2222RLRM from onsemi is an NPN silicon general-purpose transistor in TO-92 package, rated for 30 V_CEO, 600 mA continuous collector current, and 625 mW power dissipation at T_A = 25°C. It delivers DC current gain (h_FE) of 35–300 across 0.1–500 mA I_C, with V_CE(sat) ≤ 1.6 V at I_C = 150 mA / I_B = 15 mA, and is widely used in low-voltage switching and amplification circuits such as LED drivers and signal buffering.

For engineers reviewing the MPS2222RLRM datasheet, pinout, applications, or equivalent options, key selection considerations include its 30 V C-E breakdown rating, TO-92 mechanical compatibility, thermal resistance (R_JA = 200°C/W), and verified small-signal bandwidth (f_T = 250 MHz) - all critical for discrete BJT replacement and legacy design continuity.

Technical Context

This NPN bipolar junction transistor operates in active, saturation, and cutoff regions with defined DC gain curves across −55°C to +150°C junction temperature. Its base-emitter and collector-base junctions are optimized for stable gain at I_C = 10–150 mA and V_CE = 10 V, supporting predictable switching transitions (t_d ≤ 10 ns, t_r ≤ 25 ns) under 30 V supply conditions.

Thermal performance is governed by R_JA = 200°C/W (ambient) and R_JC = 83.3°C/W (case), enabling operation up to 150°C junction temperature when mounted on standard PCB copper. Input impedance (h_ie) ranges from 0.25 kΩ to 8.0 kΩ depending on bias point, while output admittance (h_oe) varies from 5.0 to 200 μmhos - parameters directly influencing stage loading and stability in multi-transistor designs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	30 V - Maximum safe collector-emitter voltage before breakdown; defines upper rail limit in switching applications.
I_C Continuous	600 mA - Sustained collector current capability; sets load-driving capacity in relay drivers and fan controllers.
P_D @ T_A = 25°C	625 mW - Power dissipation limit with no heatsink; determines thermal derating slope (5.0 mW/°C above 25°C).
h_FE Range	35–300 - DC current gain spread across 0.1–500 mA I_C; impacts base drive sizing and circuit gain predictability.
f_T	250 MHz - Unity-gain frequency at I_C = 20 mA, V_CE = 20 V; confirms suitability for RF preamp and high-speed digital interface stages.
V_CE(sat)	≤1.6 V @ I_C/I_B = 10 - Saturation voltage defining conduction loss and heat generation in switch-mode operation.
R_JA	200°C/W - Junction-to-ambient thermal resistance; dictates required PCB copper area and airflow for thermal management.

Pinout & Package

Package: TO-92 (Case 29-11, Style 1), epoxy-molded plastic with 3 leads. Standard lead configuration: Pin 1 = Emitter, Pin 2 = Base, Pin 3 = Collector. Mechanical dimensions conform to ANSI Y14.5M-1982; lead pitch = 2.54 mm (0.100"), body height ≤ 5.20 mm.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current exit path for majority carriers	Reference node for bias network; connects to ground or low-side return in common-emitter configurations.
2 (Base)	Control terminal for carrier injection	Receives current-limited drive signal; requires series resistor to set I_B and ensure saturation or linear operation.
3 (Collector)	Current entry path from external supply	Connects to load and positive rail; voltage swing limited by V_CEO = 30 V and thermal constraints.

Key Features

Feature	Design Value
TO-92 packaging	Standard through-hole footprint compatible with legacy PCB layouts and manual assembly processes.
625 mW power rating	Enables direct replacement of older 2N2222 variants without thermal redesign in low-duty-cycle applications.
250 MHz f_T	Supports audio-frequency amplification and sub-100 MHz digital signal conditioning without added compensation.
V_CE(sat) ≤ 1.6 V	Reduces conduction loss in saturated-switching roles, improving efficiency in 5–24 V logic-level control circuits.
−55°C to +150°C operating range	Validates use in industrial environments including automotive under-hood and outdoor power electronics enclosures.

Applications

LED Driver Circuit	Low-Voltage Relay Control
Use Scenario: Driving 20–100 mA indicator LEDs from microcontroller GPIO pins. IC Role / Device Role / Timing Role: NPN switch configured in common-emitter mode with base resistor limiting I_B to achieve saturation. Use Value: V_CE(sat) ≤ 1.6 V ensures minimal voltage drop across MPS2222RLRM, preserving forward voltage margin for red/green/blue LEDs.	Use Scenario: Activating 5–24 VDC coil relays in PLC I/O modules and HVAC control panels. IC Role / Device Role / Timing Role: High-current switching element interfacing between logic-level signals and inductive loads. Use Value: 600 mA I_C rating supports typical 40–80 mA relay coils with 5× safety margin; TO-92 mounting simplifies board-level fuse integration.
Audio Signal Amplifier	Logic-Level Translation
Use Scenario: Single-stage preamplifier for electret microphone outputs in battery-powered voice recorders. IC Role / Device Role / Timing Role: Common-emitter amplifier biased at I_C ≈ 1–5 mA for 20–20 kHz small-signal gain. Use Value: h_FE ≥ 75 at 1 mA and f_T = 250 MHz provide flat frequency response and low distortion below 100 kHz.	Use Scenario: Converting 1.8 V or 3.3 V logic outputs to 5 V TTL-compatible levels in mixed-voltage systems. IC Role / Device Role / Timing Role: Level-shifting switch with emitter-follower or common-emitter topology. Use Value: Low V_BE(sat) (≤1.3 V) and fast switching (t_r ≤ 25 ns) enable clean edge transitions without propagation delay penalties.

LED Driver Circuit

Low-Voltage Relay Control

Use Scenario: Driving 20–100 mA indicator LEDs from microcontroller GPIO pins.

IC Role / Device Role / Timing Role: NPN switch configured in common-emitter mode with base resistor limiting I_B to achieve saturation.

Use Value: V_CE(sat) ≤ 1.6 V ensures minimal voltage drop across MPS2222RLRM, preserving forward voltage margin for red/green/blue LEDs.

Use Scenario: Activating 5–24 VDC coil relays in PLC I/O modules and HVAC control panels.

IC Role / Device Role / Timing Role: High-current switching element interfacing between logic-level signals and inductive loads.

Use Value: 600 mA I_C rating supports typical 40–80 mA relay coils with 5× safety margin; TO-92 mounting simplifies board-level fuse integration.

Audio Signal Amplifier

Logic-Level Translation

Use Scenario: Single-stage preamplifier for electret microphone outputs in battery-powered voice recorders.

IC Role / Device Role / Timing Role: Common-emitter amplifier biased at I_C ≈ 1–5 mA for 20–20 kHz small-signal gain.

Use Value: h_FE ≥ 75 at 1 mA and f_T = 250 MHz provide flat frequency response and low distortion below 100 kHz.

Use Scenario: Converting 1.8 V or 3.3 V logic outputs to 5 V TTL-compatible levels in mixed-voltage systems.

IC Role / Device Role / Timing Role: Level-shifting switch with emitter-follower or common-emitter topology.

Use Value: Low V_BE(sat) (≤1.3 V) and fast switching (t_r ≤ 25 ns) enable clean edge transitions without propagation delay penalties.

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
2N2222A	V_CEO = 40 V, h_FE min = 100 @ 150 mA - higher breakdown and tighter gain spec than MPS2222RLRM.	Preferred where higher voltage margin or guaranteed minimum gain is required in production-critical designs.	Select 2N2222A only if V_CEO > 30 V or h_FE consistency at I_C > 100 mA is mandatory; otherwise MPS2222RLRM offers cost and supply-chain advantages.
MPS2222A	Same die as MPS2222RLRM but in bulk TO-92; identical V_CEO = 30 V, I_C = 600 mA, and f_T = 250 MHz specs.	No functional difference - differs only in packaging (bulk vs. tape-and-ammo) and traceability marking.	MPS2222A is functionally interchangeable with MPS2222RLRM; choose MPS2222RLRM for automated SMT-line compatibility via ammo box delivery.

Compared with 2N2222A and MPS2222A, the MPS2222RLRM provides identical electrical performance to MPS2222A in a tape-and-ammo format optimized for pick-and-place, while offering lower voltage rating than 2N2222A - making it ideal for cost-sensitive, volume-manufactured 5–24 V systems where 30 V headroom suffices.

Availability

MPS2222RLRM is available at Aetrix Electronics and suitable for LED driver circuits, low-voltage relay control, audio signal amplification, and logic-level translation requiring stable component supply and long-term obsolescence mitigation.

Supply support for MPS2222RLRM 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 management, analog, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.

The MPS2222RLRM belongs to onsemi's legacy general-purpose transistor product line, designed for reliability and compatibility in cost-sensitive, high-volume discrete applications including consumer electronics, industrial controls, and communication interfaces.

FAQ

What is the maximum collector-emitter voltage rating for MPS2222RLRM?

The MPS2222RLRM has a maximum collector-emitter voltage (V_CEO) rating of 30 Vdc. This value is specified under test conditions of I_C = 10 mA and I_B = 0, and represents the absolute maximum voltage that can be applied between collector and emitter before device breakdown occurs. Exceeding this rating risks permanent damage to the MPS2222RLRM.

Is MPS2222RLRM RoHS-compliant and lead-free?

Yes, the MPS2222RLRM is offered in a Pb-free (lead-free) version designated as MPS2222RLRMG per onsemi's ordering information. The standard MPS2222RLRM may be leaded unless explicitly ordered with the 'G' suffix; both share identical electrical and thermal specifications, with RoHS compliance confirmed in the official onsemi Pb-Free strategy documentation referenced in the datasheet.

What is the thermal resistance junction-to-ambient for MPS2222RLRM?

The thermal resistance junction-to-ambient (R_JA) for MPS2222RLRM is 200°C/W when mounted on a standard FR-4 PCB with minimal copper area. This value assumes natural convection cooling and defines how much the junction temperature rises above ambient per milliwatt of dissipated power - critical for calculating safe operating area in continuous or pulsed applications using the MPS2222RLRM.

Does MPS2222RLRM support high-frequency signal amplification?

Yes, the MPS2222RLRM has a current-gain bandwidth product (f_T) of 250 MHz at I_C = 20 mA and V_CE = 20 V, confirming its capability for high-frequency small-signal amplification up to ~100 MHz. Its input capacitance (C_ibo ≤ 30 pF) and noise figure (NF ≤ 4.0 dB) further support use in RF front-end and audio preamp stages where the MPS2222RLRM is deployed.

How does MPS2222RLRM differ from MPS2222A in terms of electrical performance?

The MPS2222RLRM and MPS2222A share identical electrical characteristics: both have V_CEO = 30 V, I_C = 600 mA, f_T = 250 MHz, and matching h_FE, V_CE(sat), and thermal specs. The distinction lies solely in packaging - MPS2222RLRM is supplied in tape-and-ammo format for automated assembly, whereas MPS2222A is typically offered in bulk TO-92 tubes.

MPS2222RLRM Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

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

Packaging:: Bulk

Product Status:: Obsolete

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 600 mA

Voltage - Collector Emitter Breakdown (Max):: 30 V

Vce Saturation (Max) @ Ib, Ic:: 1.6V @ 50mA, 500mA

Current - Collector Cutoff (Max):: 10nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 150mA, 10V

Power - Max:: 625 mW

Frequency - Transition:: 250MHz

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-92 (TO-226)

MPS2222RLRM FAQ

1.How can I place an order for MPS2222RLRM through Aetrix?

Please submit a Request for Quotation (RFQ) for MPS2222RLRM 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 MPS2222RLRM reliable?

The price and inventory of MPS2222RLRM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPS2222RLRM is usually 5 days.

3.What payment methods are accepted for MPS2222RLRM?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPS2222RLRM transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPS2222RLRM?

MPS2222RLRM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPS2222RLRM 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 MPS2222RLRM?

For technical support, including MPS2222RLRM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPS2222RLRM requirements.

6.How does Aetrix verify that MPS2222RLRM is sourced from the original manufacturer or authorized distributors?

All MPS2222RLRM 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 MPS2222RLRM meets industry standards.

7.What is the process for return or replacement of MPS2222RLRM?

All MPS2222RLRM units undergo pre-shipment inspection (PSI). If there is an issue with MPS2222RLRM, 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 MPS2222RLRM part is unused and in its original packaging.

Return procedure for MPS2222RLRM:

1.Submit a request within 90 days.

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

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