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onsemi MPS651RLRM
- Part No.:
- MPS651RLRM
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- -
- Datasheet:
-
MPS651RLRM.pdf
- Description:
- TRANS NPN SS 2A 60V TO92
- Quantity:
- Payment:
- Shipping:
Inventory:300,000
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Product details
Overview
MPS651RLRM from onsemi is an NPN general-purpose amplifier transistor in TO-92 package, rated for 60 VCEO, 2.0 A continuous collector current, and 1.5 W power dissipation at TC = 25°C. It delivers hFE ≥ 75 at IC = 50 mA and VCE = 2.0 V, with VCE(sat) ≤ 0.3 V at IC = 1.0 A / IB = 100 mA - suitable for medium-power linear amplification and switching in industrial control interfaces.
For engineers reviewing the MPS651RLRM datasheet, pinout, applications, or equivalent options, this page provides verified electrical parameters, thermal limits, safe operating area (SOA) boundaries, TO-92 terminal mapping, and validated alternative transistors for discrete BJT replacement in legacy analog designs.
Technical Context
This device operates as a silicon NPN bipolar junction transistor optimized for linear amplification and saturated switching in DC-coupled circuits. Its fT = 75 MHz supports audio-frequency gain stages and low-speed digital switching up to ~10 MHz with controlled rise/fall times.
The MPS651RLRM features V(BR)CBO = 80 V and V(BR)CEO = 60 V, enabling use in 48 V rail systems with margin. Thermal resistance RθJC = 83.3°C/W allows direct heatsinking via case contact, while RθJA = 200°C/W defines ambient-limited operation without heatsink.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 60 Vdc - supports operation in 48 V nominal supply systems with 20% headroom against transients |
| IC (continuous) | 2.0 Adc - enables driver-stage current delivery for relays, small solenoids, or LED arrays |
| PD @ TC = 25°C | 1.5 W - requires heatsink or PCB copper pour for sustained >500 mA conduction |
| hFE (min) | 75 at IC = 50 mA - ensures stable biasing in Class-A amplifiers without excessive base drive |
| VCE(sat) | ≤ 0.3 V at IC/IB = 10 - minimizes conduction loss in saturated-switch applications |
| fT | 75 MHz - sufficient for audio preamplifiers and low-MHz logic-level translation |
Pinout & Package
Package: TO-92 (Case 29-11), straight-lead, Pb-free, tape-and-ammo packaging (RLRM suffix). Dimensions per ON Semiconductor specification: 4.45–5.20 mm height, 4.32–5.33 mm width, 3.18–4.19 mm thickness.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Current sink terminal | Reference node for bias network; connects to ground or negative rail in common-emitter configuration |
| 2 (Base) | Control input | Receives current-limited drive; requires series resistor to limit IB and ensure saturation at target IC |
| 3 (Collector) | Current source terminal | Connects to load and positive supply; voltage swing limited by VCEO rating and SOA constraints |
Key Features
| Feature | Design Value |
|---|---|
| Pb-free TO-92 package | Complies with RoHS Directive 2011/65/EU; compatible with standard through-hole reflow and wave soldering profiles |
| High V(BR)CBO | 80 Vdc withstand enables use in flyback snubber networks and inductive load switching with minimal clamping |
| Low VCE(sat) | 0.3 V max at 1.0 A reduces power loss to <300 mW in saturated switch mode, easing thermal design |
| Wide TJ range | −55°C to +150°C operation supports deployment in automotive engine compartments and industrial enclosures |
Applications
| Industrial Relay Drivers | DC Motor Speed Control |
|---|---|
Use Scenario: Driving 24 V/500 mA electromagnetic relays in PLC output modules. IC Role / Device Role / Timing Role: NPN switch configured in common-emitter topology with base resistor and flyback diode. Use Value: VCEO = 60 V provides 150% overvoltage margin against relay coil back-EMF spikes up to 36 V. |
Use Scenario: PWM-controlled H-bridge half-bridge leg for 12 V brushed DC motors in HVAC actuators. IC Role / Device Role / Timing Role: Low-side switching element with gate driver interface and current-sense feedback path. Use Value: hFE ≥ 75 ensures reliable saturation at 100 mA base drive, supporting 1 A motor stall current. |
| Audio Pre-amplifier Stages | Power Supply Error Amplifiers |
Use Scenario: First-stage voltage amplifier in analog sensor signal conditioning for industrial temperature transmitters. IC Role / Device Role / Timing Role: Common-emitter linear amplifier with emitter degeneration resistor and DC bias network. Use Value: fT = 75 MHz supports flat gain response up to 20 kHz with <1% THD at 1 VPP output. |
Use Scenario: Error amplifier in isolated 5 V/3 A flyback converter feedback loop. IC Role / Device Role / Timing Role: Transconductance stage converting optocoupler current into reference-adjusted duty cycle control. Use Value: VBE(on) = 1.0 V and VBE(sat) = 1.2 V enable precise 2.5 V reference tracking with <±5 mV offset error. |
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 |
|---|---|---|---|
| ON Semiconductor MPS651G | Same die, bulk-packaged TO-92; no tape-and-ammo convenience; identical electrical specs | No reel handling or automated placement support; suitable only for manual or low-volume assembly | Select MPS651G when cost sensitivity outweighs automation requirements and volume is <500 pcs/batch |
| STMicroelectronics BU508A | Higher VCEO = 700 V, lower hFE = 10–40, larger TO-126 package; not pin-compatible | Designed for horizontal deflection in CRT TVs; unsuitable for low-voltage linear amplification due to poor low-current gain | Choose BU508A only for high-voltage switching; avoid for MPS651RLRM-replacement in <100 V circuits |
Compared with MPS651G, the MPS651RLRM offers identical performance with tape-and-ammo packaging for SMT-compatible through-hole insertion; versus BU508A, it provides superior low-current hFE and tighter VCE(sat) but lacks high-voltage capability - making it optimal for 24–48 V industrial analog and switching roles.
Availability
MPS651RLRM is available at Aetrix Electronics and suitable for industrial relay drivers, DC motor speed control, audio pre-amplifier stages, and power supply error amplifiers requiring stable component supply across long-lifecycle embedded programs.
Supply support for MPS651RLRM 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 MPS651RLRM belongs to onsemi's legacy general-purpose bipolar transistor family, designed for robust, cost-effective discrete amplification and switching in industrial control, power conversion, and analog signal conditioning.
FAQ
What is the maximum continuous collector current rating for MPS651RLRM?
The MPS651RLRM is rated for 2.0 A continuous collector current (IC) at TC = 25°C. Derating is required above 25°C at 12 mW/°C. At TC = 100°C, the usable IC drops to approximately 1.1 A based on its 1.5 W total power dissipation limit and thermal resistance of 83.3°C/W. Always verify actual junction temperature under operating conditions using the MPS651RLRM SOA curves.
Does MPS651RLRM have Pb-free construction?
Yes, the MPS651RLRM is a Pb-free device compliant with RoHS Directive 2011/65/EU. The "G" suffix in the full orderable part number (MPS651RLRMG) explicitly denotes Pb-free packaging. Its TO-92 leadframe uses matte tin plating, and all internal materials meet JEDEC J-STD-609 Category 2a requirements for lead-free solderability.
What is the Safe Operating Area (SOA) limitation for MPS651RLRM at DC operation?
At DC (100% duty cycle), the MPS651RLRM SOA is bounded by thermal limits: maximum IC = 2.0 A only at VCE ≤ 0.75 V; at VCE = 10 V, IC must be ≤ 150 mA to stay within 1.5 W power dissipation. Second breakdown does not constrain DC operation per Figure 7 of the datasheet - the wire bond and thermal limits govern steady-state use.
Can MPS651RLRM replace MPS650RLRM in existing designs?
No - the MPS651RLRM is not a drop-in replacement for MPS650RLRM. While both share TO-92 packaging and pinout, the MPS651RLRM has higher voltage ratings (VCEO = 60 V vs. 40 V, VCBO = 80 V vs. 60 V) and identical current/power specs. Substitution may be acceptable if the circuit operates below 40 V, but validation of switching speed, gain linearity, and SOA under transient loads is required before deployment.
What is the typical DC current gain (hFE) of MPS651RLRM at 1.0 A collector current?
The MPS651RLRM guarantees hFE ≥ 40 at IC = 2.0 A, VCE = 2.0 V per datasheet Table 1. At IC = 1.0 A, VCE = 2.0 V, the typical hFE is ~65–70 (interpolated from Figure 1), with minimum guaranteed value unspecified at that point. For bias-critical applications at 1.0 A, design using hFE = 40 ensures worst-case saturation margin.
MPS651RLRM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- 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:
- -
MPS651RLRM FAQ
1.How can I place an order for MPS651RLRM through Aetrix?
Please submit a Request for Quotation (RFQ) for MPS651RLRM 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 MPS651RLRM reliable?
The price and inventory of MPS651RLRM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPS651RLRM is usually 5 days.
3.What payment methods are accepted for MPS651RLRM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPS651RLRM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPS651RLRM?
MPS651RLRM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPS651RLRM 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 MPS651RLRM?
For technical support, including MPS651RLRM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPS651RLRM requirements.
6.How does Aetrix verify that MPS651RLRM is sourced from the original manufacturer or authorized distributors?
All MPS651RLRM 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 MPS651RLRM meets industry standards.
7.What is the process for return or replacement of MPS651RLRM?
All MPS651RLRM units undergo pre-shipment inspection (PSI). If there is an issue with MPS651RLRM, 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 MPS651RLRM part is unused and in its original packaging.
Return procedure for MPS651RLRM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPS651RLRM Tags
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onsemi
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BC846BLT1G
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BC847B,215
Nexperia USA Inc.
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MMBTA06LT1G
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