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

onsemi MPS8099RLRMG

Name: MPS8099RLRMG
Brand: onsemi
SKU: MPS8099RLRMG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPS8099RLRMG

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

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

Datasheet:: MPS8099RLRMG.pdf

Description:: TRANS NPN 80V 0.5A TO92

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MPS8099RLRMG from onsemi is an NPN general-purpose amplifier transistor in TO-92 package, rated for 80 V_CEO, 500 mA continuous collector current, and 625 mW power dissipation at T_A = 25°C. It delivers h_FE ≥ 100 at I_C = 1.0 mA and supports f_T = 150 MHz, making it suitable for low-power linear amplification and switching in consumer and industrial signal conditioning circuits.

For engineers reviewing the MPS8099RLRMG datasheet, pinout, applications, or equivalent options, key selection criteria include its V_CEO/I_C rating balance, DC gain stability across 1–100 mA, low V_CE(sat) (≤0.4 V), Pb-free TO-92 packaging, and verified thermal resistance (R_JA = 200°C/W).

Technical Context

This discrete NPN bipolar junction transistor operates in active and saturation regions with defined breakdown limits: V_(BR)CEO = 80 V (I_C = 10 mA), V_(BR)CBO = 80 V, and V_(BR)EBO = 5.0 V. Its small-signal behavior includes f_T = 150 MHz at I_C = 10 mA and V_CE = 5 V, with C_obo ≤ 8.0 pF and C_ibo ≤ 30 pF at specified bias conditions.

Thermal design is supported by R_JC = 83.3°C/W and R_JA = 200°C/W (PCB-mounted), enabling reliable operation from −55°C to +150°C junction temperature. Safe operating area (SOA) curves confirm second-breakdown immunity up to 100 mA at V_CE = 40 V under ≤10% duty cycle pulsed conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	80 V - Maximum allowable collector-emitter voltage before breakdown; defines safe DC/peak voltage headroom in amplifier or switch stages.
I_C (continuous)	500 mA - Continuous collector current handling capacity; sets upper limit for steady-state load drive capability.
h_FE (min)	100 @ I_C = 1.0 mA - Minimum DC current gain at low-current bias; ensures predictable base drive requirements in linear amplifiers.
f_T	150 MHz - Current-gain bandwidth product; confirms suitability for RF preamp or high-speed switching up to ~50 MHz practical use.
V_CE(sat)	0.4 V @ I_C = 100 mA, I_B = 5 mA - Low saturation voltage minimizes conduction loss and self-heating in switching applications.
P_D @ T_A	625 mW - Total device dissipation at ambient 25°C; requires heatsinking or derating above 25°C (5.0 mW/°C).
R_JA	200°C/W - Junction-to-ambient thermal resistance on standard PCB; determines required board copper area for thermal management.

Pinout & Package

Package: TO-92 (Case 29-11), straight-lead, Pb-free, through-hole mounting. Dimensions per ON Semiconductor specification: body height 4.45–5.20 mm, lead pitch 2.54 mm, emitter-base-collector pinout (Pin 1 = Emitter, Pin 2 = Base, Pin 3 = Collector).

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current exit terminal for NPN operation	Reference node for biasing; connects to ground or low-impedance return path in common-emitter configurations.
2 (Base)	Control input for minority-carrier injection	Receives current-limited drive signal; requires series resistor to limit I_B and ensure h_FE-based I_C control.
3 (Collector)	Current entry terminal and output node	Connects to supply rail via load resistor; voltage swing at this pin defines amplifier output or switch output state.

Key Features

Feature	Design Value
Pb-free TO-92 packaging	Complies with RoHS Directive 2011/65/EU; eliminates lead contamination risk during soldering and end-of-life disposal.
High V_CEO/V_CBO rating	80 V rating enables use in 24–48 V industrial control rails without derating or overvoltage protection overhead.
Stable h_FE across I_C range	h_FE ≥ 100 at 1 mA and ≥ 75 at 100 mA ensures consistent gain behavior from sensor-level to driver-stage currents.
Low V_CE(sat)	0.3–0.4 V saturation voltage reduces power loss and thermal stress in saturated-switch applications like relay drivers.
150 MHz f_T	Supports wideband audio preamplification and medium-frequency oscillator designs without external compensation.

Applications

Audio Signal Amplification	Industrial Sensor Interface
Use Scenario: Amplifying low-level analog signals from electret microphones or piezoelectric sensors in battery-powered voice recorders. IC Role / Device Role / Timing Role: NPN amplifier in common-emitter configuration with fixed bias network and emitter degeneration resistor. Use Value: h_FE ≥ 100 ensures stable gain at µA-level base currents; 150 MHz f_T preserves audio fidelity up to 20 kHz with margin.	Use Scenario: Level-shifting and buffering 4–20 mA current-loop sensor outputs into ADC input stages of PLC analog input modules. IC Role / Device Role / Timing Role: Linear current-controlled current source with emitter-follower topology for impedance transformation. Use Value: V_CEO = 80 V withstands transient surges on industrial field wiring; low V_CE(sat) maintains accuracy under full-scale 20 mA load.
Relay Driver Circuit	DC Motor Speed Control
Use Scenario: Driving 12 V/500 mA electromagnetic relays in HVAC control panels where microcontroller GPIOs lack sufficient current drive. IC Role / Device Role / Timing Role: Saturated NPN switch with base resistor limiting I_B to achieve I_C/I_B ≈ 10–20 for robust turn-on. Use Value: 500 mA I_C rating matches typical relay coil current; 0.4 V V_CE(sat) keeps power dissipation below 200 mW at full load.	Use Scenario: PWM-based speed control of small brushed DC motors (e.g., 6–12 V, <300 mA) in portable medical pumps and lab equipment. IC Role / Device Role / Timing Role: Low-side switch modulating motor current using 1–20 kHz PWM from MCU timer output. Use Value: f_T = 150 MHz exceeds PWM frequency requirements; SOA curve validates safe operation at 100 mA/40 V peaks during commutation.

Audio Signal Amplification

Industrial Sensor Interface

Use Scenario: Amplifying low-level analog signals from electret microphones or piezoelectric sensors in battery-powered voice recorders.

IC Role / Device Role / Timing Role: NPN amplifier in common-emitter configuration with fixed bias network and emitter degeneration resistor.

Use Value: h_FE ≥ 100 ensures stable gain at µA-level base currents; 150 MHz f_T preserves audio fidelity up to 20 kHz with margin.

Use Scenario: Level-shifting and buffering 4–20 mA current-loop sensor outputs into ADC input stages of PLC analog input modules.

IC Role / Device Role / Timing Role: Linear current-controlled current source with emitter-follower topology for impedance transformation.

Use Value: V_CEO = 80 V withstands transient surges on industrial field wiring; low V_CE(sat) maintains accuracy under full-scale 20 mA load.

Relay Driver Circuit

DC Motor Speed Control

Use Scenario: Driving 12 V/500 mA electromagnetic relays in HVAC control panels where microcontroller GPIOs lack sufficient current drive.

IC Role / Device Role / Timing Role: Saturated NPN switch with base resistor limiting I_B to achieve I_C/I_B ≈ 10–20 for robust turn-on.

Use Value: 500 mA I_C rating matches typical relay coil current; 0.4 V V_CE(sat) keeps power dissipation below 200 mW at full load.

Use Scenario: PWM-based speed control of small brushed DC motors (e.g., 6–12 V, <300 mA) in portable medical pumps and lab equipment.

IC Role / Device Role / Timing Role: Low-side switch modulating motor current using 1–20 kHz PWM from MCU timer output.

Use Value: f_T = 150 MHz exceeds PWM frequency requirements; SOA curve validates safe operation at 100 mA/40 V peaks during commutation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC547C	Lower V_CEO (45 V), lower f_T (300 MHz typ but not guaranteed min), same TO-92 package.	Not suitable for >45 V rails; higher f_T does not guarantee better stability at high gain due to lower h_FE consistency.	Select BC547C only when supply voltage is ≤30 V and high-frequency linearity is secondary to cost.
MPSA18	Higher V_CEO (50 V), higher h_FE (100–300), same I_C rating, TO-92 package.	Limited to 50 V systems; superior gain uniformity makes it preferred for precision biasing but lacks 80 V margin.	Choose MPSA18 where tight h_FE matching is critical and rail voltage stays ≤40 V; MPS8099RLRMG remains optimal for 48 V+ environments.

Compared with BC547C and MPSA18, MPS8099RLRMG uniquely balances 80 V breakdown, 500 mA current, and guaranteed 150 MHz f_T in a Pb-free TO-92, offering broader voltage headroom and documented thermal performance for industrial-grade reliability.

Availability

MPS8099RLRMG is available at Aetrix Electronics and suitable for industrial sensor interfaces, relay driver circuits, audio preamplifiers, and DC motor control requiring stable component supply with RoHS-compliant packaging and traceable sourcing.

Supply support for MPS8099RLRMG 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, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.

The MPS8099RLRMG belongs to onsemi's legacy general-purpose transistor family designed for cost-sensitive, high-reliability linear amplification and switching in industrial controls, instrumentation, and power-supply auxiliary circuits.

FAQ

What is the maximum collector-emitter voltage rating for MPS8099RLRMG?

The MPS8099RLRMG has a guaranteed minimum collector-emitter breakdown voltage V_(BR)CEO of 80 V at I_C = 10 mA. This rating allows safe operation in 48 V industrial systems with margin for transients. Exceeding 80 V risks irreversible avalanche failure, and design should maintain ≤80% of this rating for long-term reliability.

Does MPS8099RLRMG have Pb-free construction?

Yes, MPS8099RLRMG is explicitly marked as Pb-free in the onsemi datasheet (MPS8099/D, page 3 ordering table). The "G" suffix in the part number denotes RoHS-compliant termination, and the TO-92 package uses matte tin plating per onsemi's Pb-Free Packaging Standard.

What is the DC current gain (h_FE) range for MPS8099RLRMG at 10 mA collector current?

At I_C = 10 mA and V_CE = 5 V, the MPS8099RLRMG exhibits h_FE between 100 and 300 per the datasheet's Electrical Characteristics table. This wide range reflects process variation; design must accommodate the minimum value (100) for worst-case base drive calculation.

Can MPS8099RLRMG be used in switching applications?

Yes, MPS8099RLRMG is qualified for switching use with documented t_r, t_f, t_d, and t_s values in Figures 7–8. Its V_CE(sat) ≤ 0.4 V at I_C/I_B = 20 and f_T = 150 MHz support clean transitions up to ~10 MHz square-wave operation when properly biased and heatsinked.

What is the thermal resistance junction-to-ambient (R_JA) for MPS8099RLRMG?

The MPS8099RLRMG has R_JA = 200°C/W when mounted on a standard FR-4 PCB with typical copper land patterns, as measured per JEDEC JESD51-2. This value assumes no added heatsink; actual R_JA improves with larger copper pour areas or thermal vias under the collector lead.

MPS8099RLRMG 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):: 500 mA

Voltage - Collector Emitter Breakdown (Max):: 80 V

Vce Saturation (Max) @ Ib, Ic:: 400mV @ 5mA, 100mA

Current - Collector Cutoff (Max):: 100nA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 1mA, 5V

Power - Max:: 625 mW

Frequency - Transition:: 150MHz

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

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

MPS8099RLRMG FAQ

1.How can I place an order for MPS8099RLRMG through Aetrix?

Please submit a Request for Quotation (RFQ) for MPS8099RLRMG 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 MPS8099RLRMG reliable?

The price and inventory of MPS8099RLRMG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPS8099RLRMG is usually 5 days.

3.What payment methods are accepted for MPS8099RLRMG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPS8099RLRMG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPS8099RLRMG?

MPS8099RLRMG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPS8099RLRMG 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 MPS8099RLRMG?

For technical support, including MPS8099RLRMG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPS8099RLRMG requirements.

6.How does Aetrix verify that MPS8099RLRMG is sourced from the original manufacturer or authorized distributors?

All MPS8099RLRMG 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 MPS8099RLRMG meets industry standards.

7.What is the process for return or replacement of MPS8099RLRMG?

All MPS8099RLRMG units undergo pre-shipment inspection (PSI). If there is an issue with MPS8099RLRMG, 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 MPS8099RLRMG part is unused and in its original packaging.

Return procedure for MPS8099RLRMG:

1.Submit a request within 90 days.

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

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