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onsemi MPSA14RLRAG
- Part No.:
- MPSA14RLRAG
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-226-3, TO-92-3 Long Body, Formed Leads
- Datasheet:
-
MPSA14RLRAG.pdf
- Description:
- TRANS NPN DARL 30V 0.5A TO92
- Quantity:
- Payment:
- Shipping:
Inventory:9,254
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Product details
Overview
MPSA14RLRAG from ON Semiconductor is an NPN Darlington transistor optimized for high-current-switching applications with DC current gain up to 10,000 at IC = 100 mA, VCE = 5.0 V, and VCE(sat) ≤ 1.5 V at IC = 100 mA / IB = 0.1 mA. It features a 30 V collector-emitter breakdown voltage, 1.2 A continuous collector current rating, and TO-92 package for through-hole mounting in relay drivers, lamp drivers, and low-frequency power switching circuits.
For engineers reviewing the MPSA14RLRAG datasheet, pinout, applications, or equivalent options, key selection criteria include verified Darlington gain performance, saturation voltage under defined drive conditions, thermal resistance (RθJA = 200 °C/W), junction temperature range (–55 to +150 °C), and compatibility with legacy Fairchild MPSA13/14 designs requiring high β at moderate current levels.
Technical Context
The MPSA14RLRAG implements a monolithic NPN Darlington pair structure with integrated base-emitter resistor network absent in the MPSA13, enabling simplified biasing in switching configurations. Its high hFE minimizes required base drive current while maintaining predictable VCE(sat) behavior across its rated operating range.
Designed for DC and low-frequency (<1 MHz) switching, it exhibits fT = 125 MHz under specified test conditions but is not characterized for RF amplification. Thermal design must account for PD = 625 mW at 25 °C with 5.0 mW/°C derating above ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Device Type | NPN Darlington transistor - provides high current gain in single-package configuration for reduced base drive requirements |
| VCES | 30 V - maximum allowable collector-emitter voltage before breakdown; defines safe operating voltage headroom |
| IC (Continuous) | 1.2 A - maximum DC collector current; sets upper limit for load switching capability |
| hFE (Min/Max) | 5,000 / 10,000 - guaranteed DC current gain range at IC = 100 mA, VCE = 5.0 V; enables microcontroller-level base drive |
| VCE(sat) | ≤1.5 V at IC = 100 mA, IB = 0.1 mA - low saturation voltage reduces conduction loss in switching applications |
| RθJA | 200 °C/W - junction-to-ambient thermal resistance on FR-4 PCB; determines temperature rise per watt dissipated |
Pinout & Package
Package: TO-92 - standard through-hole plastic package with 3-pin vertical lead configuration, compatible with automated insertion and wave soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Emission terminal of Darlington pair | Common emitter node; connects to ground or low-side return path in switching topologies |
| 2 (Base) | Control input for Darlington pair | Accepts low-current drive signal; internal base resistor network simplifies external biasing |
| 3 (Collector) | Output current terminal | Connects to load and supply rail; carries full switched load current up to 1.2 A |
Key Features
| Feature | Design Value |
|---|---|
| High DC Current Gain | hFE ≥ 5,000 at IC = 100 mA ensures reliable turn-on with minimal base current from logic-level sources |
| Low Saturation Voltage | VCE(sat) ≤ 1.5 V reduces power loss and heat generation during active conduction |
| Wide Operating Temperature Range | –55 °C to +150 °C junction rating supports industrial and automotive under-hood environments |
| TO-92 Mechanical Compatibility | Standard footprint allows drop-in replacement in existing designs using MPSA13/14 family layouts |
Applications
| Relay Driver Circuits | Lamp and LED Array Drivers |
|---|---|
Use Scenario: Driving electromagnetic relays with coil currents up to 1 A in industrial control panels and PLC I/O modules. IC Role / Device Role: High-gain switch that replaces discrete BJT pairs, reducing component count and board space. Use Value: Enables direct interfacing with 3.3 V or 5 V microcontrollers without additional base resistors or level-shifting circuitry. | Use Scenario: Switching incandescent lamps, halogen bulbs, or high-brightness LED strings in signage and lighting systems. IC Role / Device Role: Low-side load switch handling peak currents >500 mA with stable saturation characteristics. Use Value: Maintains consistent brightness and avoids thermal runaway due to predictable VCE(sat) and wide SOA. |
| DC Motor Control (Low-Speed) | Power Supply Enable Switching |
Use Scenario: Enabling brushed DC motors in consumer appliances and office equipment where PWM frequency < 1 kHz is used. IC Role / Device Role: Single-transistor H-bridge half-bridge or enable switch controlling motor power path. Use Value: Delivers 1.2 A continuous current with low conduction loss, minimizing heatsink requirements. | Use Scenario: Sequencing power rails in multi-voltage embedded systems (e.g., enabling 12 V auxiliary supplies after 3.3 V core stabilization). IC Role / Device Role: Controlled pass element in power-good signaling and supply enable logic. Use Value: Provides clean, fast turn-on/off with no shoot-through risk and minimal leakage (ICBO ≤ 100 nA). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN Darlington transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPSA13RLRAG | No integrated base resistor; requires external bias network for stable operation | Better suited for precision gain-critical linear amplification where base current control is mandatory | Select when exact gain matching or analog feedback paths require discrete base biasing |
| ULN2003A | 7-channel Darlington array with built-in clamp diodes and higher VCE(sat); surface-mount SO-16 package | Optimized for driving multiple inductive loads (relays, solenoids) simultaneously in compact layouts | Select when consolidating several low-side switches into one IC with integrated protection |
Compared with MPSA14RLRAG, MPSA13RLRAG offers higher design flexibility in biasing but increases component count, while ULN2003A trades single-device simplicity for multi-channel integration and clamp protection-neither is pin-compatible, but both serve overlapping high-gain switching roles in different form factors.
Availability
MPSA14RLRAG is available at Aetrix Electronics and suitable for relay driver circuits, lamp/LED array drivers, low-speed DC motor control, and power supply enable switching requiring stable component supply and long-term industrial availability.
Supply support for MPSA14RLRAG 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
ON Semiconductor is a global semiconductor manufacturer specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and IoT applications.
The MPSA14RLRAG belongs to ON Semiconductor's general-purpose bipolar transistor product line, designed specifically for cost-sensitive, high-reliability switching applications where high current gain and robust thermal performance are essential.
FAQ
What is the maximum continuous collector current rating for the MPSA14RLRAG?
The MPSA14RLRAG has a maximum continuous collector current (IC) rating of 1.2 A at Ta = 25 °C. This value decreases with rising ambient temperature due to thermal derating-5.0 mW/°C above 25 °C-and must be validated against actual board layout, airflow, and power dissipation in the final application. The MPSA14RLRAG achieves this rating while maintaining VCE(sat) ≤ 1.5 V under defined drive conditions.
Does the MPSA14RLRAG include an integrated base resistor?
Yes, the MPSA14RLRAG incorporates an internal base resistor network, distinguishing it from the MPSA13RLRAG. This feature simplifies circuit design by eliminating the need for an external base bias resistor in standard switching configurations. The MPSA14RLRAG is therefore optimized for direct interface with logic-level signals, whereas the MPSA13RLRAG requires external biasing for stable operation.
What is the collector-emitter breakdown voltage (VCES) specification for the MPSA14RLRAG?
The MPSA14RLRAG specifies a minimum collector-emitter breakdown voltage (VCES) of 30 V at IC = 100 μA and IB = 0. This parameter defines the maximum voltage the device can block between collector and emitter in the off state without entering avalanche conduction. Designers must ensure operating voltages remain below this limit with appropriate safety margin, especially in inductive load switching where voltage spikes may occur.
How does the thermal resistance RθJA of the MPSA14RLRAG affect its power dissipation capability?
The MPSA14RLRAG has a junction-to-ambient thermal resistance (RθJA) of 200 °C/W on a standard FR-4 PCB (1.6" × 1.6" × 0.06"). This means each watt dissipated raises the junction temperature by 200 °C above ambient. With a maximum junction temperature of +150 °C and 25 °C ambient, the practical continuous power dissipation is limited to 625 mW-directly tied to the device's 200 °C/W RθJA and thermal environment. The MPSA14RLRAG must be thermally managed accordingly in high-duty-cycle applications.
Is the MPSA14RLRAG suitable for use in automotive applications?
The MPSA14RLRAG operates across –55 °C to +150 °C junction temperature, meeting extended temperature requirements common in under-hood automotive subsystems. However, it is not AEC-Q101 qualified, and ON Semiconductor does not authorize its use in safety-critical automotive functions such as airbag control or braking systems. For non-safety automotive applications like interior lighting or HVAC fan control, the MPSA14RLRAG may be used subject to full system-level validation-including ESD, EMC, and lifetime reliability testing-by the end customer.
MPSA14RLRAG 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):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 30 V
- Vce Saturation (Max) @ Ib, Ic:
- 1.5V @ 100µA, 100mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 20000 @ 100mA, 5V
- Power - Max:
- 625 mW
- Frequency - Transition:
- 125MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92 (TO-226)
MPSA14RLRAG FAQ
1.How can I place an order for MPSA14RLRAG through Aetrix?
Please submit a Request for Quotation (RFQ) for MPSA14RLRAG 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 MPSA14RLRAG reliable?
The price and inventory of MPSA14RLRAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPSA14RLRAG is usually 5 days.
3.What payment methods are accepted for MPSA14RLRAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPSA14RLRAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPSA14RLRAG?
MPSA14RLRAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPSA14RLRAG 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 MPSA14RLRAG?
For technical support, including MPSA14RLRAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPSA14RLRAG requirements.
6.How does Aetrix verify that MPSA14RLRAG is sourced from the original manufacturer or authorized distributors?
All MPSA14RLRAG 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 MPSA14RLRAG meets industry standards.
7.What is the process for return or replacement of MPSA14RLRAG?
All MPSA14RLRAG units undergo pre-shipment inspection (PSI). If there is an issue with MPSA14RLRAG, 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 MPSA14RLRAG part is unused and in its original packaging.
Return procedure for MPSA14RLRAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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