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Diodes Incorporated MJD2873Q-13
- Part No.:
- MJD2873Q-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
MJD2873Q-13.pdf
- Description:
- TRANS NPN 50V 2A TO252
- Quantity:
- Payment:
- Shipping:
Inventory:2,450
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Product details
Overview
MJD2873Q-13 from Diodes Incorporated is a 50V, 2A NPN medium-power transistor in TO252 (DPAK) package, designed for automotive-grade power switching and linear amplification. It delivers VCEO = 50 V, IC = 2 A continuous, VCE(sat) = 0.3 V at IC = 1 A / IB = 50 mA, and is AEC-Q101 qualified for under-hood motor control and body electronics.
For engineers reviewing the MJD2873Q-13 datasheet, MJD2873Q-13 pinout, MJD2873Q-13 application, or MJD2873Q-13 equivalent, key selection criteria include its 50V VCEO, 2.6 W power dissipation on 25 mm × 25 mm 2 oz copper, 4 kV HBM ESD rating, and TO252 thermal pad layout compatibility.
Technical Context
The MJD2873Q-13 is a silicon NPN bipolar junction transistor optimized for medium-current switching with low saturation voltage and robust thermal performance. Its hFE ranges from 40 to 120 (IC = 0.5–2 A), and fT = 65 MHz supports moderate-speed switching up to ~100 kHz in PWM-driven loads.
Designed for automotive environments, it operates across –55°C to +150°C, features halogen/antimony-free "Green" molding compound (UL 94V-0), and meets J-STD-020 moisture sensitivity Level 1. The exposed collector pad enables direct thermal coupling to PCB copper planes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum safe collector-emitter voltage before breakdown; enables use in 24 V automotive systems with margin. |
| IC (continuous) | 2 A - Sustained load current capability; supports solenoid drivers and fan motors without forced cooling. |
| VCE(sat) | 0.3 V @ IC = 1 A, IB = 50 mA - Low conduction loss reduces heat generation in high-duty-cycle switching. |
| PD (2 oz Cu) | 2.60 W - Power handling on standard 25 mm × 25 mm 2 oz FR4; defines thermal design baseline for board layout. |
| RθJA | 48 °C/W - Junction-to-ambient thermal resistance under defined test conditions; used to calculate max TJ rise. |
| ESD HBM | 4,000 V - Robustness against human-body electrostatic discharge; reduces need for external protection in assembly. |
| AEC-Q101 | Qualified - Validated for automotive applications including engine control modules and lighting drivers. |
Pinout & Package
Package: TO252 (DPAK), surface-mount, with exposed collector pad for thermal conduction. Molded plastic housing rated UL 94V-0; matte tin-plated leads solderable per MIL-STD-202, Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Collector (C) | Main current output path, electrically connected to exposed metal pad | Primary thermal path to PCB; must be routed to large copper pour for thermal management. |
| Emitter (E) | Current return node, common reference for base drive | Low-inductance connection required when driving inductive loads to minimize voltage spikes. |
| Base (B) | Control input for transistor turn-on/turn-off | Requires current-limited drive (e.g., 50 mA typical) to ensure full saturation and avoid overdrive loss. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive production use, including PPAP support and IATF 16949 manufacturing. |
| TO252 thermal pad | Exposed collector enables ≤48 °C/W RθJA with 25 mm × 25 mm 2 oz copper-reducing heatsink dependency. |
| Low VCE(sat) | 0.3 V at 1 A ensures <0.3 W conduction loss, minimizing self-heating in sustained 24 V load switching. |
| 4 kV HBM ESD rating | Eliminates need for discrete ESD protection in many board-level implementations during handling and assembly. |
| Halogen- and antimony-free | Meets automotive environmental standards (<900 ppm Br, <900 ppm Cl, <1000 ppm Sb); supports RoHS 3 compliance. |
Applications
| Automotive Body Control Module | Industrial DC Motor Driver |
|---|---|
Use Scenario: Driving 12 V/24 V window lift motors and door lock actuators in BCMs. IC Role / Device Role / Timing Role: Medium-power NPN switch controlling inductive loads via microcontroller GPIO with base resistor network. Use Value: 50 V VCEO and 2 A IC handle back-EMF and stall currents; AEC-Q101 ensures reliability over vehicle lifetime. |
Use Scenario: PWM-controlled 24 V brushed DC fans and conveyors in factory automation. IC Role / Device Role / Timing Role: Single-ended power stage switch operating at ≤20 kHz PWM frequency with flyback diode protection. Use Value: 0.3 V VCE(sat) limits conduction loss to <0.6 W at 2 A, reducing thermal stress without active cooling. |
| LED Headlamp Dimming Circuit | Power Supply Pass Transistor |
Use Scenario: Linear current regulation for adaptive LED headlamps requiring analog dimming. IC Role / Device Role / Timing Role: Adjustable emitter-follower pass element controlled by op-amp feedback loop. Use Value: hFE ≥ 40 at 2 A ensures stable gain across temperature; 150 °C max TJ supports sealed lamp housings. |
Use Scenario: Series pass element in 5 V/2 A linear regulator for noise-sensitive analog subsystems. IC Role / Device Role / Timing Role: Voltage-controlled current source maintaining regulated output under variable load. Use Value: 2.6 W PD and 48 °C/W RθJA allow 2 A operation with ≤125 °C junction rise on standard PCB layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN medium-power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STP2873 | VCEO = 50 V, IC = 2 A, but VCE(sat) = 0.5 V @ 1 A - 67% higher conduction loss. | Lacks AEC-Q101 qualification; not approved for automotive production. | Acceptable for cost-sensitive industrial prototypes where qualification is not required. |
| ON Semiconductor MJD2873T4G | Identical electrical specs and TO252 package; same VCEO, IC, VCE(sat), and fT. | Also AEC-Q101 qualified, but manufactured in different IATF 16949 facilities; PPAP documentation differs. | Drop-in replacement with identical performance; preferred when dual-sourcing is mandated. |
Compared with STP2873 and MJD2873T4G, the MJD2873Q-13 uniquely combines 0.3 V VCE(sat), AEC-Q101 validation, and Diodes' traceable green packaging-making it optimal for thermally constrained automotive modules requiring long-term supply continuity.
Availability
MJD2873Q-13 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, LED lighting drivers, and linear power regulation requiring stable component supply and AEC-Q101 compliance.
Supply support for MJD2873Q-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The MJD2873Q belongs to Diodes' automotive-qualified bipolar transistor product line, engineered specifically for reliable power switching in harsh-environment applications such as engine control, chassis systems, and exterior lighting.
FAQ
What is the maximum safe operating temperature for MJD2873Q-13?
The MJD2873Q-13 has an operating junction temperature range of –55°C to +150°C. Its absolute maximum TJ is 150°C; sustained operation above this threshold risks parametric shift and premature failure. Thermal design must ensure TJ remains within limits using the published RθJA values and actual PCB copper area.
Is MJD2873Q-13 pin-compatible with legacy MJD2873 variants?
Yes-the MJD2873Q-13 uses the standard TO252 (DPAK) footprint with Collector/Base/Emitter pinout (C-B-E). It maintains mechanical and electrical compatibility with earlier non-Q versions, though only the Q variant carries AEC-Q101 qualification and green material compliance.
Does MJD2873Q-13 require a heatsink in typical 2 A switching applications?
Not necessarily: with a 25 mm × 25 mm 2 oz copper pad, its RθJA is 48 °C/W. At 2 A and 0.3 V VCE(sat), power dissipation is 0.6 W, resulting in ~29°C junction rise above ambient-well within safe margins without a heatsink.
How does the "Q" suffix affect compliance and sourcing?
The "Q" denotes AEC-Q101 qualification, IATF 16949 manufacturing, PPAP capability, and full automotive change control. It also signifies halogen/antimony-free "Green" materials per Diodes' specification-critical for Tier 1 automotive BOM acceptance and long-term sustainability requirements.
MJD2873Q-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 2 A
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 50mA, 1A
- Current - Collector Cutoff (Max):
- 100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 120 @ 500mA, 2V
- Power - Max:
- 1.45 W
- Frequency - Transition:
- 65MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252 (DPAK)
MJD2873Q-13 FAQ
1.How can I place an order for MJD2873Q-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for MJD2873Q-13 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 MJD2873Q-13 reliable?
The price and inventory of MJD2873Q-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MJD2873Q-13 is usually 5 days.
3.What payment methods are accepted for MJD2873Q-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MJD2873Q-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MJD2873Q-13?
MJD2873Q-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MJD2873Q-13 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 MJD2873Q-13?
For technical support, including MJD2873Q-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MJD2873Q-13 requirements.
6.How does Aetrix verify that MJD2873Q-13 is sourced from the original manufacturer or authorized distributors?
All MJD2873Q-13 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 MJD2873Q-13 meets industry standards.
7.What is the process for return or replacement of MJD2873Q-13?
All MJD2873Q-13 units undergo pre-shipment inspection (PSI). If there is an issue with MJD2873Q-13, 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 MJD2873Q-13 part is unused and in its original packaging.
Return procedure for MJD2873Q-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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