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

onsemi 2N5089RLRAG

Name: 2N5089RLRAG
Brand: onsemi
SKU: 2N5089RLRAG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2N5089RLRAG

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

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

Datasheet:: 2N5089RLRAG.pdf

Description:: TRANS NPN 25V 0.05A TO92

Quantity:: RFQ Add To RFQ list

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Inventory:7,833

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Product details

Overview

2N5089RLRAG from onsemi is an NPN silicon small-signal amplifier transistor in TO-92 package, rated for V_CEO = 25 V, I_C = 50 mA, and f_T = 50 MHz, with h_FE up to 1200 at I_C = 10 mA - used in low-noise audio preamplifier stages and RF front-end gain blocks.

For engineers reviewing the 2N5089RLRAG datasheet, pinout, applications, or equivalent options, key selection criteria include its 2.0 dB noise figure at 1 kHz, Pb-free TO-92 packaging, and verified performance across −55°C to +150°C junction temperature range.

Technical Context

This device operates as a linear NPN bipolar junction transistor optimized for low-noise amplification. Its h_fe ranges from 450 to 1800 (depending on I_C), and it delivers stable current gain with V_BE(on) ≤ 0.8 V and V_CE(sat) ≤ 0.5 V under specified bias conditions.

The 2N5089RLRAG exhibits C_cb = 4.0 pF and C_eb = 10 pF at rated test conditions, supporting bandwidth-critical designs. Its thermal resistance R_JA = 200°C/W (on PCB) and R_JC = 83.3°C/W enable reliable operation in compact analog signal chains without forced cooling.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	25 Vdc - maximum safe collector-emitter voltage before breakdown in common-emitter configuration
I_C	50 mAdc - continuous collector current rating defining usable linear output swing headroom
f_T	50 MHz - unity-gain frequency enabling stable amplification up to mid-VHF band
h_FE	400–1200 - DC current gain range ensuring predictable bias point stability across production lots
NF	2.0 dB @ 1 kHz - low noise figure critical for high-fidelity microphone and sensor signal conditioning
P_D @ T_A	625 mW - power dissipation limit at 25°C ambient, derating 5.0 mW/°C above that temperature
R_JA	200°C/W - junction-to-ambient thermal resistance measured on standard PCB, guiding heatsinking decisions

Pinout & Package

2N5089RLRAG uses the industry-standard TO-92 (Case 29, Style 1) plastic package with 3 leads, Pb-free finish, and JEDEC-compliant dimensions (max height 5.20 mm, body width 4.45 mm).

Pin/Terminal	Circuit Role	Design Meaning
1	Emitter	Current sink terminal; connects to ground or bias network in common-emitter amplifier topology
2	Base	Control input; requires ~0.7–0.8 V forward bias and microampere-level drive current
3	Collector	Output node; supplies amplified current to load or next stage with V_CE(sat) ≤ 0.5 V at I_C/I_B = 10

Key Features

Feature	Design Value
Low noise figure	2.0 dB at 1 kHz enables high-SNR signal recovery in microphone preamps and sensor interfaces
High DC current gain	h_FE ≥ 400 at I_C = 1.0 mA ensures robust biasing with minimal base drive current
Wide operating temperature	−55°C to +150°C junction range supports deployment in automotive engine compartments and industrial controls
Pb-free TO-92 package	RoHS-compliant construction with standard lead spacing (2.54 mm) simplifies manual and automated assembly
Controlled capacitance	C_cb = 4.0 pF and C_eb = 10 pF support stable high-frequency compensation in discrete amplifier designs

Applications

Audio Preamp Stage	RF Signal Amplifier
Use Scenario: Low-level signal amplification from electret condenser microphones in voice-controlled IoT devices. IC Role / Device Role / Timing Role: Small-signal NPN transistor configured in common-emitter topology to provide 20–40 dB voltage gain. Use Value: 2.0 dB noise figure preserves SNR while h_FE ≥ 400 ensures stable gain across supply and temperature variations.	Use Scenario: First-stage amplification in 27 MHz CB radio receiver front-ends. IC Role / Device Role / Timing Role: Discrete RF amplifier operating below f_T/10 to maintain linearity and minimize distortion. Use Value: 50 MHz f_T and 4.0 pF C_cb allow stable 27 MHz gain with minimal neutralization requirements.
Sensor Interface Circuit	Industrial Analog Front-End
Use Scenario: Amplifying millivolt-level outputs from thermopile or photodiode sensors in HVAC control modules. IC Role / Device Role / Timing Role: DC-coupled transimpedance or voltage amplifier with precision biasing via emitter degeneration. Use Value: −55°C to +150°C operating range and 1200 max h_FE ensure accuracy over full industrial temperature span.	Use Scenario: Input buffer and gain stage in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Linear amplifier handling 4–20 mA loop signals converted to voltage via precision shunt resistor. Use Value: 625 mW power rating and 200°C/W R_JA support continuous operation in sealed enclosures without airflow.

Audio Preamp Stage

RF Signal Amplifier

Use Scenario: Low-level signal amplification from electret condenser microphones in voice-controlled IoT devices.

IC Role / Device Role / Timing Role: Small-signal NPN transistor configured in common-emitter topology to provide 20–40 dB voltage gain.

Use Value: 2.0 dB noise figure preserves SNR while h_FE ≥ 400 ensures stable gain across supply and temperature variations.

Use Scenario: First-stage amplification in 27 MHz CB radio receiver front-ends.

IC Role / Device Role / Timing Role: Discrete RF amplifier operating below f_T/10 to maintain linearity and minimize distortion.

Use Value: 50 MHz f_T and 4.0 pF C_cb allow stable 27 MHz gain with minimal neutralization requirements.

Sensor Interface Circuit

Industrial Analog Front-End

Use Scenario: Amplifying millivolt-level outputs from thermopile or photodiode sensors in HVAC control modules.

IC Role / Device Role / Timing Role: DC-coupled transimpedance or voltage amplifier with precision biasing via emitter degeneration.

Use Value: −55°C to +150°C operating range and 1200 max h_FE ensure accuracy over full industrial temperature span.

Use Scenario: Input buffer and gain stage in programmable logic controller (PLC) analog input modules.

IC Role / Device Role / Timing Role: Linear amplifier handling 4–20 mA loop signals converted to voltage via precision shunt resistor.

Use Value: 625 mW power rating and 200°C/W R_JA support continuous operation in sealed enclosures without airflow.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
2N5088RLRAG	V_CEO = 30 V (vs. 25 V), f_T = 50 MHz same, h_FE min 300 (vs. 400)	Higher voltage headroom but lower guaranteed gain at low currents	Select when >25 V collector supply or higher breakdown margin is required
BC547C	V_CEO = 45 V, h_FE = 420–800, NF = 4.0 dB (vs. 2.0 dB), TO-92 package	Higher voltage rating but significantly higher noise - unsuitable for ultra-low-noise mic preamps	Select for general-purpose switching or medium-noise amplification where cost is prioritized

Compared with 2N5089RLRAG, the 2N5088RLRAG offers greater voltage tolerance but reduced minimum h_FE, while BC547C trades noise performance for broader voltage capability - making 2N5089RLRAG optimal for noise-sensitive analog front-ends requiring 25 V operation.

Availability

2N5089RLRAG is available at Aetrix Electronics and suitable for audio preamplifiers, RF signal amplifiers, and industrial sensor interface circuits requiring stable component supply and RoHS-compliant packaging.

Supply support for 2N5089RLRAG 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 focused on energy-efficient innovation for automotive, industrial, cloud, and intelligent edge applications.

The 2N5089RLRAG belongs to onsemi's legacy NPN amplifier transistor family designed specifically for low-noise, high-gain analog signal conditioning in space- and cost-constrained PCB layouts.

FAQ

What is the maximum collector-emitter voltage rating for the 2N5089RLRAG?

The 2N5089RLRAG has a maximum collector-emitter voltage (V_CEO) rating of 25 Vdc. This value is specified under test conditions of I_C = 1.0 mAdc and I_B = 0, and represents the absolute maximum voltage the device can withstand in common-emitter configuration before breakdown. Exceeding this rating risks permanent damage to the 2N5089RLRAG.

Does the 2N5089RLRAG have a Pb-free package?

Yes, the 2N5089RLRAG features a Pb-free TO-92 package compliant with RoHS Directive 2011/65/EU. The "G" suffix in the part number explicitly denotes the Pb-free variant, and the device meets onsemi's standardized soldering and mounting specifications for lead-free reflow profiles.

What is the typical noise figure of the 2N5089RLRAG and at what conditions is it measured?

The 2N5089RLRAG has a typical noise figure (NF) of 2.0 dB, measured at I_C = 100 µAdc, V_CE = 5.0 Vdc, R_S = 1.0 kΩ, and f = 1.0 kHz. This low noise performance makes the 2N5089RLRAG especially suitable for high-fidelity audio and precision sensor amplification where signal integrity is critical.

Can the 2N5089RLRAG be used in high-temperature environments?

Yes, the 2N5089RLRAG is rated for junction temperatures from −55°C to +150°C. Its thermal resistance values - R_JA = 200°C/W and R_JC = 83.3°C/W - confirm suitability for industrial control, automotive under-hood, and other high-temperature applications when mounted per JEDEC-standard PCB layout guidelines.

How does the current gain (h_FE) of the 2N5089RLRAG vary with collector current?

The 2N5089RLRAG exhibits h_FE = 400–450 at I_C = 1.0 mAdc, 350–450 at I_C = 10 mAdc, and up to 1200 at I_C = 10 mAdc under specific test conditions. This wide gain range means circuit designers must verify bias stability across expected I_C variation - the 2N5089RLRAG performs best in moderate-current linear amplification, not saturated switching.

2N5089RLRAG 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):: 50 mA

Voltage - Collector Emitter Breakdown (Max):: 25 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 1mA, 10mA

Current - Collector Cutoff (Max):: 50nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 400 @ 100µA, 5V

Power - Max:: 625 mW

Frequency - Transition:: 50MHz

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

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

2N5089RLRAG FAQ

1.How can I place an order for 2N5089RLRAG through Aetrix?

Please submit a Request for Quotation (RFQ) for 2N5089RLRAG 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 2N5089RLRAG reliable?

The price and inventory of 2N5089RLRAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2N5089RLRAG is usually 5 days.

3.What payment methods are accepted for 2N5089RLRAG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2N5089RLRAG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2N5089RLRAG?

2N5089RLRAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2N5089RLRAG 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 2N5089RLRAG?

For technical support, including 2N5089RLRAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2N5089RLRAG requirements.

6.How does Aetrix verify that 2N5089RLRAG is sourced from the original manufacturer or authorized distributors?

All 2N5089RLRAG 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 2N5089RLRAG meets industry standards.

7.What is the process for return or replacement of 2N5089RLRAG?

All 2N5089RLRAG units undergo pre-shipment inspection (PSI). If there is an issue with 2N5089RLRAG, 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 2N5089RLRAG part is unused and in its original packaging.

Return procedure for 2N5089RLRAG:

1.Submit a request within 90 days.

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

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