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onsemi MPS651RLRAG
- Part No.:
- MPS651RLRAG
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-226-3, TO-92-3 Long Body, Formed Leads
- Datasheet:
-
MPS651RLRAG.pdf
- Description:
- TRANS NPN 60V 2A TO92
- Quantity:
- Payment:
- Shipping:
Inventory:7,271
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Product details
Overview
MPS651RLRAG from onsemi is an NPN bipolar junction transistor (BJT) designed for general-purpose amplification and switching in low-to-medium power linear and digital circuits. It features a 60 V collector-emitter breakdown voltage (V(BR)CEO), 2.0 A continuous collector current (IC), and 1.5 W total power dissipation at TC = 25°C, making it suitable for relay drivers, power supplies, and motor control stages.
For engineers reviewing the MPS651RLRAG datasheet, pinout, applications, or equivalent options, key selection criteria include its TO-92 package compatibility, DC current gain (hFE ≥ 75 at IC = 50 mA), saturation voltage (VCE(sat) ≤ 0.5 V at IC = 2.0 A), and thermal resistance (RθJC = 83.3°C/W).
Technical Context
This device operates as a silicon NPN BJT with fixed emitter-base and collector-base junction structures optimized for stable DC gain across −55°C to +150°C junction temperature range. Its safe operating area (SOA) is defined by thermal, second breakdown, and wire bond limits - validated up to 100 µs pulse width at 25°C case temperature.
The MPS651RLRAG exhibits hFE ≥ 75 at IC = 50 mA and VCE = 2.0 V, dropping to ≥ 40 at IC = 2.0 A; fT = 75 MHz confirms usable small-signal bandwidth for audio-frequency amplification and switching below 10 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| V(BR)CEO | 60 Vdc - supports operation in 48 V rail systems with margin against transients |
| IC (continuous) | 2.0 Adc - enables direct drive of loads up to ~25 W at 12 V with adequate heatsinking |
| PD @ TC = 25°C | 1.5 W - requires thermal interface design when mounted on PCB copper or heatsink |
| hFE (min) | 75 at IC = 50 mA - ensures reliable base drive efficiency in Class-A amplifier stages |
| VCE(sat) | 0.5 V max at IC = 2.0 A / IB = 200 mA - reduces conduction loss in saturated-switch applications |
| fT | 75 MHz - sufficient for audio preamplifiers and low-speed digital logic interfacing |
Pinout & Package
Package: TO-92 (Case 29-11), Pb-free, straight-lead configuration per onsemi specification. Dimensions conform to ANSI Y14.5M–1982 (inch-based) and ASME Y14.5M–1994 (mm-based) standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Current sink terminal | Connected to ground or low-side return path; defines reference for base bias and collector load |
| 2 (Base) | Control input terminal | Receives forward-biased current to modulate collector-emitter conduction; requires current-limiting resistor |
| 3 (Collector) | Current source terminal | Connected to load and supply rail; carries full output current and dissipates majority of power in saturation |
Key Features
| Feature | Design Value |
|---|---|
| Pb-free construction | Complies with RoHS Directive 2011/65/EU and JEDEC JS709B; compatible with lead-free reflow profiles |
| High V(BR)CBO | 80 Vdc - improves immunity to inductive kickback in relay and solenoid driver circuits |
| Wide TJ range | −55°C to +150°C - supports deployment in automotive under-hood and industrial ambient environments |
| Low VBE(sat) | 1.2 V max at IC/IB = 10 - simplifies base drive design with standard logic-level microcontrollers |
Applications
| Relay Driver Circuit | DC-DC Converter Switch |
|---|---|
|
Use Scenario: Driving 12 V, 100 mA coil relays in programmable logic controllers. IC Role / Device Role / Timing Role: NPN switch controlling relay coil current path between VCC and ground. Use Value: VCE(sat) ≤ 0.5 V minimizes power loss (≤ 50 mW) and eliminates need for external flyback diode in low-duty-cycle operation. |
Use Scenario: Low-cost synchronous rectifier replacement in 5–24 V buck converters. IC Role / Device Role / Timing Role: Discrete NPN switch replacing MOSFET in low-frequency (<100 kHz), medium-current (<1.5 A) output stage. Use Value: hFE ≥ 75 ensures stable base drive with minimal gate-driver complexity and no body diode reverse recovery issues. |
| Audio Preamp Stage | Motor Speed Control |
|
Use Scenario: Single-ended Class-A voltage amplifier in battery-powered portable audio equipment. IC Role / Device Role / Timing Role: Linear amplification element biased in active region with fixed emitter resistor. Use Value: fT = 75 MHz provides >10× headroom over 20 kHz audio band, ensuring flat gain response and low distortion. |
Use Scenario: PWM-controlled 12 V DC fan or small brushed motor in HVAC control modules. IC Role / Device Role / Timing Role: High-side or low-side switch modulating average motor voltage via duty cycle. Use Value: SOA validated to 1 ms pulses allows reliable operation at 1 kHz PWM without thermal runaway or secondary breakdown. |
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 |
|---|---|---|---|
| MMBT651LT1G | Same V(BR)CEO (60 V), lower IC (1.0 A), SOT-23 package (smaller footprint, higher RθJA) | Preferred for space-constrained PCBs where thermal management permits lower current handling | Select when board area is critical and peak load current remains ≤1.0 A |
| PN2222A | Lower V(BR)CEO (40 V), same TO-92 package, hFE min = 100 at IC = 10 mA but degrades faster above 500 mA | Suitable for <30 V logic-level switching but not for 48 V transient-tolerant designs | Choose only if system rail voltage stays ≤30 V and high-gain at low current is prioritized over high-current saturation |
Compared with MMBT651LT1G and PN2222A, the MPS651RLRAG delivers superior 2.0 A current capability and 60 V breakdown margin in the industry-standard TO-92 through-hole package - enabling drop-in upgrades in legacy relay and power supply designs without layout change.
Availability
MPS651RLRAG is available at Aetrix Electronics and suitable for relay drivers, DC-DC converter switches, and audio preamplifier stages requiring stable component supply, long-term manufacturability, and Pb-free compliance.
Supply support for MPS651RLRAG 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 delivering energy-efficient power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The MPS651RLRAG belongs to onsemi's legacy general-purpose bipolar transistor product line, engineered for reliability in cost-sensitive, medium-power analog and switching applications across industrial and consumer electronics.
FAQ
What is the maximum continuous collector current rating for MPS651RLRAG?
The MPS651RLRAG is rated for 2.0 A continuous collector current (IC) at TC = 25°C. Derating is required above this temperature - 12 mW/°C reduction applies when case temperature exceeds 25°C, per the datasheet's thermal characteristics table.
Does MPS651RLRAG support Pb-free soldering processes?
Yes, MPS651RLRAG is a certified Pb-free device compliant with RoHS Directive 2011/65/EU. It uses matte tin plating and is qualified for standard lead-free reflow profiles with peak temperatures up to 260°C, as documented in onsemi's Soldering and Mounting Techniques Reference Manual.
What is the DC current gain (hFE) of MPS651RLRAG at 1.0 A collector current?
At IC = 1.0 A, VCE = 2.0 V, and TJ = 25°C, the MPS651RLRAG guarantees hFE ≥ 75. This value is confirmed in the "ON CHARACTERISTICS" section of the official datasheet (Publication Order Number: MPS650/D, Rev. 4).
Can MPS651RLRAG be used in high-frequency amplifier designs?
The MPS651RLRAG has an fT of 75 MHz, making it suitable for audio-frequency amplification and low-speed switching up to ~10 MHz. It is not recommended for RF or high-speed digital applications (>20 MHz) due to limited gain-bandwidth product and lack of specified S-parameters.
What is the thermal resistance from junction to case (RθJC) for MPS651RLRAG?
The thermal resistance from junction to case (RθJC) for MPS651RLRAG is 83.3°C/W, measured under specified test conditions (TC = 25°C). This value is critical for calculating junction temperature rise when mounted on a heatsink or copper pour.
MPS651RLRAG 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):
- 2 A
- Voltage - Collector Emitter Breakdown (Max):
- 60 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 200mA, 2A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 75 @ 1A, 2V
- Power - Max:
- 625 mW
- Frequency - Transition:
- 75MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92 (TO-226)
MPS651RLRAG FAQ
1.How can I place an order for MPS651RLRAG through Aetrix?
Please submit a Request for Quotation (RFQ) for MPS651RLRAG 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 MPS651RLRAG reliable?
The price and inventory of MPS651RLRAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPS651RLRAG is usually 5 days.
3.What payment methods are accepted for MPS651RLRAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPS651RLRAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPS651RLRAG?
MPS651RLRAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPS651RLRAG 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 MPS651RLRAG?
For technical support, including MPS651RLRAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPS651RLRAG requirements.
6.How does Aetrix verify that MPS651RLRAG is sourced from the original manufacturer or authorized distributors?
All MPS651RLRAG 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 MPS651RLRAG meets industry standards.
7.What is the process for return or replacement of MPS651RLRAG?
All MPS651RLRAG units undergo pre-shipment inspection (PSI). If there is an issue with MPS651RLRAG, 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 MPS651RLRAG part is unused and in its original packaging.
Return procedure for MPS651RLRAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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