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onsemi MPS6724RLRA
- Part No.:
- MPS6724RLRA
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-226-3, TO-92-3 Long Body, Formed Leads
- Datasheet:
-
MPS6724RLRA.pdf
- Description:
- TRANS NPN DARL 40V 1A TO92
- Quantity:
- Payment:
- Shipping:
Inventory:7,119
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Product details
Overview
MPS6724RLRA from onsemi is an NPN silicon Darlington transistor in a TO-92 package, rated for 40 VCEO, 1 A continuous collector current, and 1.0 W dissipation at TA = 25°C. It delivers high DC current gain (hFE = 25,000–40,000 at IC = 200 mA), low VCE(sat) ≤ 1.5 V, and operates across −55°C to +150°C junction temperature - used in relay drivers, lamp dimmers, and low-frequency switching power stages.
For engineers reviewing the MPS6724RLRA datasheet, pinout, applications, or equivalent options, key selection criteria include verified Darlington configuration, TO-92 mechanical compatibility, guaranteed hFE ≥ 25k at 200 mA, safe operating area limits per Figure 1, and tape-and-reel packaging (2000 units) for automated assembly.
Technical Context
The MPS6724RLRA is a monolithic NPN Darlington pair with integrated base-emitter resistor network absent - requiring external base drive control. Its high hFE enables microcontroller-level base current (e.g., 2 mA drives 1 A load), while fT = 100–1000 MHz supports stable operation up to audio frequencies but not RF switching.
Thermal design relies on RJA = 125°C/W (ambient) and RJC = 50°C/W (case), with second breakdown limiting active-region use above 10 ms pulses. Safe operating area (SOA) is defined by thermal, current, and secondary breakdown boundaries - not linearly scalable beyond 100 ms duty cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 40 V - Maximum collector-emitter voltage before breakdown; sets upper rail limit in switch-mode loads. |
| IC (cont.) | 1000 mA - Continuous collector current rating; defines max steady-state load drive capability. |
| PD @ TA=25°C | 1.0 W - Power dissipation limit with no heatsink; derates 8 mW/°C above ambient. |
| hFE | 25,000–40,000 - High DC current gain at IC = 200 mA/VCE = 5 V; reduces required base drive current. |
| VCE(sat) | ≤1.5 V @ IC/IB = 1000 mA/2 mA - Low saturation voltage minimizes conduction loss in switching applications. |
| fT | 100–1000 MHz - Current-gain bandwidth product; confirms suitability for audio and low-speed digital switching only. |
| TJ Range | −55°C to +150°C - Wide junction temperature range supports industrial and automotive under-hood environments. |
Pinout & Package
Package: TO-92 (Case 29-10, Style 1), straight-lead, Pb-free (G-suffix variant available). Dimensions comply with ON Semiconductor Issue D, March 2021.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter | Low-side return path; connects to ground or load common; carries full load current. |
| 2 | Base | Control input; requires current-limited drive (e.g., series resistor) to avoid overdrive damage. |
| 3 | Collector | High-side switch node; connects to load supply rail; must remain within VCEO and SOA limits. |
Key Features
| Feature | Design Value |
|---|---|
| High hFE Darlington structure | Enables single-stage amplification of µA-level signals into 1 A output - eliminates need for pre-driver stage. |
| Guaranteed VCEO = 40 V | Supports 24 V and 36 V industrial control rails with 2× safety margin against transients. |
| TO-92 tape-and-reel packaging (2000 units) | Enables direct placement via standard SMT feeders - no manual handling or bulk sorting required. |
| RJC = 50°C/W | Allows direct mounting to metal chassis or small heatsink for >0.5 W continuous dissipation without thermal runaway. |
| −55°C to +150°C TJ | Validated operation in extended-temperature environments including engine compartments and outdoor enclosures. |
Applications
| Relay Driver Circuit | Lamp Dimmer Module |
|---|---|
|
Use Scenario: Driving 12 V/24 V electromagnetic relays in PLC I/O modules with microcontroller GPIO. IC Role / Device Role / Timing Role: High-gain current amplifier converting 3.3 V/5 V logic-level base current into 100–500 mA coil current. Use Value: Eliminates need for dual-transistor driver stage; reduces BOM count and PCB area while maintaining <1.5 V dropout. |
Use Scenario: Phase-angle AC dimming of incandescent/halogen lamps using TRIAC-triggered gate drive. IC Role / Device Role / Timing Role: Low-frequency switch controlling TRIAC gate pulse timing via zero-cross detection circuitry. Use Value: Delivers reliable 1 A peak trigger current with <2.0 VBE(on), ensuring consistent TRIAC turn-on across temperature. |
| DC Motor Speed Control | Industrial Solenoid Actuator |
|
Use Scenario: PWM-based speed regulation of 12 V brushed DC motors in HVAC dampers and access control systems. IC Role / Device Role / Timing Role: Low-side switch modulating motor current at 1–20 kHz; handles back-EMF clamping via external diode. Use Value: Maintains <1.5 VCE(sat) at 1 A, limiting resistive loss to <1.5 W - enabling thermally stable 100% duty cycle operation with minimal heatsinking. |
Use Scenario: On/off control of 24 V solenoid valves in factory automation and fluid control panels. IC Role / Device Role / Timing Role: High-current switch delivering 800–1000 mA inductive load current with fast turn-off aided by base discharge path. Use Value: With hFE ≥ 25,000, enables direct drive from 5 V logic with <10 kΩ base resistor - simplifying interface design and reducing component count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Darlington transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBT6427LT1G | Lower VCEO = 30 V; hFE = 10,000–25,000; SOT-23 package; 350 mW PD. | Not suitable for 24 V+ loads or >350 mA continuous current; limited thermal mass. | Select when space-constrained PCB layout prioritizes SOT-23 footprint and load voltage ≤ 24 V. |
| ULN2003A | 7-channel Darlington array; 500 mA per channel; built-in clamp diodes and base resistors; SOIC-16. | Replaces discrete driver + protection components; requires logic-level enable, not analog base drive. | Select when driving multiple relays/lamps simultaneously and board space allows SOIC footprint. |
Compared with MMBT6427LT1G and ULN2003A, the MPS6724RLRA offers higher single-device voltage and current ratings, TO-92 mechanical robustness for hand-soldering or through-hole rework, and absence of integrated base resistors - giving full control over drive strength and switching speed.
Availability
MPS6724RLRA is available at Aetrix Electronics and suitable for relay drivers, lamp dimmers, DC motor controllers, and industrial solenoid actuators requiring stable component supply, long-lifecycle support, and tape-and-reel packaging for automated assembly.
Supply support for MPS6724RLRA 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, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The MPS6724RLRA belongs to onsemi's legacy discrete transistor portfolio, designed specifically for cost-sensitive, high-reliability linear and switching applications in industrial controls and appliance subsystems.
FAQ
What is the maximum continuous collector current rating for the MPS6724RLRA?
The MPS6724RLRA is rated for 1000 mA continuous collector current (IC) at TA = 25°C. Derating applies above ambient temperature - 8 mW/°C reduction in total device dissipation. At elevated temperatures or with limited heatsinking, actual usable current drops per the SOA curve in Figure 1 of the datasheet.
Does the MPS6724RLRA have integrated base resistors?
No, the MPS6724RLRA does not include internal base resistors. It is a bare Darlington transistor requiring external base current limiting - typically via a series resistor sized to deliver ~2 mA base current for 1 A collector load, per the VBE(on) ≤ 2.0 V specification.
Is the MPS6724RLRA RoHS-compliant and lead-free?
Yes, the MPS6724RLRA is offered in a Pb-free TO-92 package. The "G" suffix (e.g., MPS6724RLRAG) explicitly denotes the lead-free version, and the base marking includes a microdot or "G" identifier per ON Semiconductor's Pb-Free Packaging Standard.
What is the safe operating area (SOA) limitation for pulsed operation of the MPS6724RLRA?
The MPS6724RLRA SOA is defined in Figure 1 of the datasheet: for 10 ms pulses, maximum IC is ~300 mA at VCE = 20 V; for 100 ms, it drops to ~100 mA. Secondary breakdown dominates beyond 1 ms - pulse width, duty cycle, and VCE must all stay within the shaded region to avoid irreversible failure.
Can the MPS6724RLRA replace the MPS6725 in a 40 V design?
No - the MPS6725 has VCEO = 50 V and VCBO = 60 V, while the MPS6724RLRA is rated only to 40 VCEO. Substituting MPS6724RLRA in a 50 V design risks premature breakdown. Use only where VCE remains ≤ 40 V with margin, such as 24 V or 36 V systems.
MPS6724RLRA 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 - Darlington
- Current - Collector (Ic) (Max):
- 1 A
- Voltage - Collector Emitter Breakdown (Max):
- 40 V
- Vce Saturation (Max) @ Ib, Ic:
- 1.5V @ 2mA, 1A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 4000 @ 1A, 5V
- Power - Max:
- 1 W
- Frequency - Transition:
- 1GHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92 (TO-226)
MPS6724RLRA FAQ
1.How can I place an order for MPS6724RLRA through Aetrix?
Please submit a Request for Quotation (RFQ) for MPS6724RLRA 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 MPS6724RLRA reliable?
The price and inventory of MPS6724RLRA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPS6724RLRA is usually 5 days.
3.What payment methods are accepted for MPS6724RLRA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPS6724RLRA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPS6724RLRA?
MPS6724RLRA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPS6724RLRA 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 MPS6724RLRA?
For technical support, including MPS6724RLRA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPS6724RLRA requirements.
6.How does Aetrix verify that MPS6724RLRA is sourced from the original manufacturer or authorized distributors?
All MPS6724RLRA 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 MPS6724RLRA meets industry standards.
7.What is the process for return or replacement of MPS6724RLRA?
All MPS6724RLRA units undergo pre-shipment inspection (PSI). If there is an issue with MPS6724RLRA, 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 MPS6724RLRA part is unused and in its original packaging.
Return procedure for MPS6724RLRA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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