onsemi MJD42CRLG
- Part No.:
- MJD42CRLG
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
MJD42CRLG.pdf
- Description:
- TRANS PNP 100V 6A DPAK
- Quantity:
- Payment:

- Shipping:

Inventory:4,481
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Product details
Overview
MJD42CRLG from onsemi is a PNP complementary power transistor in DPAK (TO-252) package, rated for 100 VCEO, 6 A continuous collector current, and 20 W power dissipation at TC = 25°C. It is designed for general-purpose amplifier and low-speed switching applications such as linear power supplies, motor drivers, and relay drivers.
For engineers reviewing the MJD42CRLG datasheet, pinout, applications, or equivalent options, key selection criteria include its PNP polarity, VCEO/IC/PD ratings, thermal resistance (RθJC = 6.25°C/W), and AEC-Q101 qualification for automotive use.
Technical Context
The MJD42CRLG operates as a silicon-based bipolar junction transistor with fixed PNP topology, supporting DC amplification and switching functions under junction temperatures from −65°C to +150°C. Its electrical behavior is defined by hFE = 15–75 (at IC = 0.3 A and 3 A), VCE(sat) ≤ 1.5 V (at IC = 6 A, IB = 600 mA), and fT ≥ 3 MHz.
Thermally, it relies on surface-mount pad design per Case 369C recommendations to achieve RθJA = 71.4°C/W and safe operation within SOA limits up to 100 V and 6 A under single-pulse conditions. The NJV prefix variant confirms AEC-Q101 qualification and PPAP capability for automotive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 100 Vdc - Maximum collector-emitter voltage before breakdown; defines safe operating voltage headroom in linear or switching circuits. |
| IC (cont.) | 6 Adc - Continuous collector current rating; determines maximum sustained load-handling capacity without thermal derating. |
| PD @ TC=25°C | 20 W - Total power dissipation at case temperature 25°C; requires heatsinking or PCB copper area for thermal management. |
| hFE | 15–75 - DC current gain range across 0.3–3 A; impacts base drive sizing and saturation margin in switching designs. |
| VCE(sat) | ≤1.5 V - Collector-emitter saturation voltage at IC=6 A/IB=600 mA; directly affects conduction loss and thermal rise in saturated switch mode. |
| RθJC | 6.25°C/W - Junction-to-case thermal resistance; enables calculation of junction temperature rise above heatsink temperature. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive electronics; supports use in engine control, body electronics, and ADAS subsystems. |
Pinout & Package
DPAK (TO-252) surface-mount package, Case 369C, 4-pin configuration with pins 2 and 4 internally connected to collector. Pin 1 is base, pin 3 is emitter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control terminal for forward-biased PNP operation; requires negative bias relative to emitter to turn on. |
| 2 & 4 | Collector | Common high-current output node; electrically tied together for enhanced current handling and thermal path to exposed pad. |
| 3 | Emiter | Main current source terminal; connects to higher potential rail in PNP switching configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Pb-free, RoHS-compliant | Meets EU RoHS Directive 2011/65/EU; eliminates lead in soldering and packaging materials for environmental compliance. |
| UL 94 V-0 epoxy | Flame-retardant encapsulation at 0.125 in thickness; satisfies safety standards for industrial and automotive enclosures. |
| NJV prefix variant | Indicates automotive-grade traceability, site-specific controls, and PPAP documentation support for OEM production programs. |
| Complementary pairing | Electrically matched with MJD41C (NPN) for push-pull, H-bridge, and Class AB amplifier topologies requiring balanced gain and SOA. |
| Surface-mount lead form | Lead-formed for tape-and-reel automated placement; compatible with standard SMT reflow profiles and IPC-A-610 Class 2/3 assembly. |
Applications
| Linear Power Supply Regulation | DC Motor Driver Stage |
|---|---|
Use Scenario: Used as pass transistor in adjustable linear regulators delivering up to 6 A at ≤100 V input-to-output differential. IC Role / Device Role / Timing Role: PNP power transistor operating in active region to regulate output voltage via feedback-controlled base current. Use Value: Enables low-noise, ripple-free DC output with minimal external components; VCE(sat) ≤1.5 V reduces dropout and improves efficiency at full load. |
Use Scenario: Drives brushed DC motors in automotive HVAC actuators and industrial positioning systems requiring bidirectional control. IC Role / Device Role / Timing Role: High-side PNP switch in half-bridge configuration, paired with NPN counterpart for direction reversal. Use Value: Supports 6 A continuous motor current with SOA compliance up to 100 V; AEC-Q101 qualification ensures reliability in vehicle cabin environments. |
| Relay Driver Circuit | Audio Amplifier Output Stage |
Use Scenario: Switches 12–24 V automotive relays with coil currents up to 500 mA in body control modules. IC Role / Device Role / Timing Role: Low-speed saturated switch providing galvanic isolation between microcontroller GPIO and relay coil. Use Value: hFE ≥15 at IC=0.5 A ensures robust saturation with minimal base drive; TO-252 footprint simplifies PCB layout and thermal relief. |
Use Scenario: Output stage in Class AB audio amplifiers for mid-power speaker drivers (e.g., 20–50 W RMS). IC Role / Device Role / Timing Role: Complementary PNP device in push-pull pair with MJD41C to deliver symmetrical current sourcing/sinking. Use Value: Matched hFE and SOA characteristics minimize crossover distortion; 3 MHz fT supports audio bandwidth up to 20 kHz with stable phase margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STP16NF06L | N-channel MOSFET (60 V, 16 A); logic-level gate drive; no base current required. | Replaces BJT in high-efficiency switching but lacks linear regulation capability and requires gate driver circuitry. | Select when low conduction loss and zero gate current are critical; not suitable for analog amplifier or linear regulator roles. |
| MJD42CT4G | Same die, identical specs; differs only in tape-and-reel quantity (2500 vs. 1800 units) and reel orientation. | No functional or application difference; fully interchangeable in all designs using DPAK footprint. | Prefer for high-volume SMT lines requiring larger reels; MJD42CRLG remains optimal for prototyping and medium-batch production. |
Compared with STP16NF06L and MJD42CT4G, the MJD42CRLG offers proven BJT linearity and simplicity for analog control, while maintaining direct compatibility with legacy TIP42-based designs and automotive qualification-making it ideal where thermal stability, SOA predictability, and AEC-Q101 traceability are mandatory.
Availability
MJD42CRLG is available at Aetrix Electronics and suitable for linear power supply regulation, DC motor driver stages, relay driver circuits, and audio amplifier output stages requiring stable component supply and automotive-grade reliability.
Supply support for MJD42CRLG 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, and cloud infrastructure markets.
The MJD42CRLG belongs to onsemi's complementary power transistor family designed for robust, cost-effective amplification and low-speed switching in harsh-environment applications including automotive body electronics and industrial controls.
FAQ
What is the polarity and transistor type of MJD42CRLG?
The MJD42CRLG is a PNP bipolar junction transistor (BJT), confirmed by its complementary designation to the NPN MJD41C and its electrical specifications-including negative base-emitter voltage requirement for turn-on and collector-emitter sustaining voltage (VCEO) defined for PNP operation. This polarity makes it suitable for high-side switching and current-sourcing applications where the emitter connects to the positive rail.
Is MJD42CRLG qualified for automotive applications?
Yes, the NJV prefix in the ordering code NJVMJD42CRLG* explicitly denotes AEC-Q101 qualification and PPAP capability. The device meets stress testing requirements for temperature cycling, humidity, and mechanical shock, and is approved for use in automotive body control modules, HVAC actuators, and lighting drivers where long-term reliability under vibration and thermal cycling is essential.
What package does MJD42CRLG use and how is it mounted?
MJD42CRLG uses the DPAK (TO-252) surface-mount package, Case 369C, with dimensions 6.10 × 6.54 × 2.28 mm. It is mounted using standard SMT reflow processes, with the exposed collector pad (pins 2 and 4) thermally connected to a large PCB copper pour or heatsink to manage its 20 W power dissipation at TC = 25°C.
How does MJD42CRLG compare to the legacy TIP42 series?
The MJD42CRLG is electrically similar to the TIP42C, sharing identical VCEO = 100 V, IC = 6 A, and PD = 65 W (with heatsink) ratings-but packaged in DPAK instead of TO-220. Its smaller footprint, Pb-free construction, and AEC-Q101 qualification make it a drop-in replacement for new designs targeting surface-mount automation and automotive compliance, while retaining the same gain and saturation behavior.
What is the maximum safe operating area (SOA) limit for MJD42CRLG?
The MJD42CRLG's SOA is defined in Figure 12 of the datasheet: at TC = 25°C, it supports up to 100 V and 6 A in DC operation, with pulse limits scaling inversely with duration (e.g., 10 A at 1 ms). Safe operation requires adherence to both thermal limits (via RθJC = 6.25°C/W) and second-breakdown constraints-especially critical in linear regulator or Class AB amplifier applications where simultaneous high VCE and IC occur.
MJD42CRLG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 6 A
- Voltage - Collector Emitter Breakdown (Max):
- 100 V
- Vce Saturation (Max) @ Ib, Ic:
- 1.5V @ 600mA, 6A
- Current - Collector Cutoff (Max):
- 50µA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 15 @ 3A, 4V
- Power - Max:
- 1.75 W
- Frequency - Transition:
- 3MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
MJD42CRLG FAQ
1.How can I place an order for MJD42CRLG through Aetrix?
Please submit a Request for Quotation (RFQ) for MJD42CRLG 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 MJD42CRLG reliable?
The price and inventory of MJD42CRLG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MJD42CRLG is usually 5 days.
3.What payment methods are accepted for MJD42CRLG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MJD42CRLG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MJD42CRLG?
MJD42CRLG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MJD42CRLG 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 MJD42CRLG?
For technical support, including MJD42CRLG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MJD42CRLG requirements.
6.How does Aetrix verify that MJD42CRLG is sourced from the original manufacturer or authorized distributors?
All MJD42CRLG 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 MJD42CRLG meets industry standards.
7.What is the process for return or replacement of MJD42CRLG?
All MJD42CRLG units undergo pre-shipment inspection (PSI). If there is an issue with MJD42CRLG, 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 MJD42CRLG part is unused and in its original packaging.
Return procedure for MJD42CRLG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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