onsemi MJD41CRLG
- Part No.:
- MJD41CRLG
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
MJD41CRLG.pdf
- Description:
- TRANS NPN 100V 6A DPAK
- Quantity:
- Payment:

- Shipping:

Inventory:4,775
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Product details
Overview
MJD41CRLG from onsemi is an NPN silicon 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 serves as a general-purpose amplifier and low-speed switching device in industrial power supplies, motor drivers, and relay drivers.
For engineers reviewing the MJD41CRLG datasheet, pinout, applications, or equivalent options, key selection criteria include its VCEO = 100 V rating, hFE ≥ 30 at IC = 0.3 A, VCE(sat) ≤ 1.5 V at IC = 6 A / IB = 600 mA, thermal resistance RJC = 6.25 °C/W, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
The MJD41CRLG is a complementary NPN power transistor paired with the PNP MJD42C, designed for discrete power stage implementation in linear and switching applications. Its DC current gain (hFE) ranges from 30 to 75 depending on operating point, and it supports safe operation up to TJ = +150°C with junction-to-case thermal resistance of 6.25 °C/W.
It features electrically similar characteristics to the legacy TIP41 series but in a surface-mount DPAK package with Pb-free (RoHS-compliant) construction. The device meets UL 94 V-0 flammability rating and is qualified per AEC-Q101 when ordered with NJV prefix - though MJD41CRLG itself is standard industrial grade.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 100 V - Maximum collector-emitter voltage before breakdown; enables use in 48 V and 100 V bus systems with margin. |
| IC (continuous) | 6 A - Continuous collector current capability; supports medium-power switching loads without forced cooling. |
| PD @ TC = 25°C | 20 W - Total power dissipation at case temperature 25°C; requires heatsinking above ~5 W ambient operation. |
| hFE (min) | 30 - Minimum DC current gain at IC = 0.3 A, VCE = 4 V; ensures reliable base drive sizing for saturation. |
| VCE(sat) | ≤1.5 V - Collector-emitter saturation voltage at IC = 6 A / IB = 600 mA; limits conduction loss to ≤9 W at full load. |
| RJC | 6.25 °C/W - Junction-to-case thermal resistance; defines minimum heatsink requirement for thermal management. |
Pinout & Package
DPAK-3 (TO-252) surface-mount package with exposed drain pad (pin 2 and 4 tied internally to collector), 6.10 mm × 6.54 mm footprint, 2.28 mm height, and 2.29 mm lead pitch. Thermal pad must be soldered to PCB copper for effective heat transfer.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control terminal; requires ≥600 mA base drive for full 6 A collector conduction; low-impedance input for TTL/CMOS-compatible driver stages. |
| 2 & 4 | Collector | High-current output node; pins 2 and 4 are internally connected to collector and thermal pad - must be routed to high-current trace and heatsink plane. |
| 3 | Emiter | Reference terminal for emitter-follower or common-emitter configuration; connects to ground or load return path; carries full load current. |
Key Features
| Feature | Design Value |
|---|---|
| Pb-free, RoHS-compliant construction | Meets global environmental compliance requirements without lead-based solder compatibility compromises. |
| UL 94 V-0 epoxy housing | Self-extinguishing plastic case suitable for safety-critical industrial and consumer enclosures. |
| Electrically similar to TIP41 series | Enables drop-in replacement in legacy through-hole designs adapted for surface-mount assembly. |
| 150°C maximum junction temperature | Supports operation in high-ambient environments such as engine compartments or enclosed power cabinets. |
| ESD rated HBM Class 3B | Withstands ≥8 kV human-body-model ESD events during handling and board assembly. |
Applications
| Industrial Power Supply | DC Motor Driver |
|---|---|
|
Use Scenario: Linear regulator pass element or series switch in 24–48 V industrial SMPS auxiliary supplies. IC Role / Device Role / Timing Role: NPN power switch controlling output voltage via base bias; operates in active or saturation region depending on regulation mode. Use Value: 100 VCEO rating provides headroom for transient spikes; 6 A current capacity supports >100 W auxiliary rails with minimal external components. |
Use Scenario: Low-speed H-bridge half-bridge leg or unidirectional motor control in conveyor systems and actuators. IC Role / Device Role / Timing Role: Discrete power switch driving brushed DC motors up to 60 W; used with flyback diode and base resistor network. Use Value: VCE(sat) ≤ 1.5 V minimizes I²R losses at 6 A; hFE ≥ 30 simplifies base drive design using microcontroller GPIO or logic buffers. |
| Relay Driver | Linear Amplifier Stage |
|
Use Scenario: Solid-state replacement for electromechanical relays in PLC I/O modules and building automation panels. IC Role / Device Role / Timing Role: High-current interface between low-power logic and inductive relay coils (e.g., 12–24 V, 100–500 mA). Use Value: 6 A IC rating allows parallel coil driving or surge-tolerant operation; built-in ESD protection reduces need for external TVS. |
Use Scenario: Output stage in audio preamplifiers, sensor signal conditioners, or analog feedback loops requiring linear gain. IC Role / Device Role / Timing Role: Class-A or class-AB emitter-follower providing current gain and low-output-impedance buffering. Use Value: hFE stability across −55°C to +150°C ensures consistent gain over temperature; fT = 3 MHz supports bandwidth up to ~100 kHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TIP41C | Through-hole TO-220 package; identical VCEO, IC, and hFE specs; higher RJA (62.5 °C/W vs. 71.4 °C/W for MJD41CRLG). | Requires socket or through-hole PCB layout; not suitable for automated SMT assembly. | Select TIP41C only for prototyping, repair, or legacy through-hole designs where rework tolerance is prioritized over density. |
| STP16NF06L | N-channel MOSFET (60 V, 16 A); gate-driven, no base current; RDS(on) = 0.05 Ω vs. VCE(sat) = 1.5 V; lower conduction loss at high duty cycles. | Replaces bipolar function with voltage-controlled switching; requires gate driver for fast edges; unsuitable for linear amplification. | Choose STP16NF06L for high-efficiency PWM motor control or SMPS primary switches; avoid for analog linear operation or TTL-level base drive. |
Compared with TIP41C, MJD41CRLG offers SMT compatibility and slightly better thermal performance in surface-mount layouts; compared with STP16NF06L, it provides simpler DC biasing and inherent linearity but higher conduction loss and base drive overhead.
Availability
MJD41CRLG is available at Aetrix Electronics and suitable for industrial power supplies, DC motor drivers, relay drivers, and linear amplifier stages requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MJD41CRLG 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 manufacturer specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and IoT applications.
The MJD41CRLG belongs to onsemi's complementary power transistor family designed for cost-sensitive, medium-power discrete switching and amplification in surface-mount industrial and automotive systems.
FAQ
What is the maximum continuous collector current rating for MJD41CRLG?
The MJD41CRLG has a maximum continuous collector current (IC) rating of 6 A at case temperature TC = 25°C. Derating is required above this temperature - the datasheet specifies a derating factor of 0.16 W/°C for power dissipation and implies proportional current reduction under thermal constraint. At TC = 100°C, usable IC drops to approximately 3.5 A based on thermal limits.
Is MJD41CRLG pin-compatible with the TIP41C transistor?
No, MJD41CRLG is not pin-compatible with TIP41C. MJD41CRLG uses a 4-pin DPAK (TO-252) package with pins 1=Base, 2&4=Collector (tied), 3=Emiter; TIP41C uses a 3-pin TO-220 package with pins 1=Base, 2=Collector, 3=Emiter. Physical layout, thermal pad connection, and pin count differ - direct PCB replacement requires redesign.
Does MJD41CRLG support automotive applications?
The standard MJD41CRLG is not AEC-Q101 qualified. However, onsemi offers the NJVMJD41CT4G variant - same die and electrical specs but with automotive-specific traceability, control change documentation, and PPAP capability. For automotive designs, specify the NJV-prefixed part; MJD41CRLG is intended for industrial and commercial applications.
What is the typical DC current gain (hFE) of MJD41CRLG at 3 A collector current?
Per the datasheet's Electrical Characteristics table, the MJD41CRLG has a minimum hFE of 15 at IC = 3 A and VCE = 4 V. Typical values range from 30 to 50 under those conditions, as shown in Figure 3 (DC Current Gain vs. Collector Current). This gain supports robust base drive design for switching applications with moderate speed requirements.
Can MJD41CRLG be used in linear amplifier configurations?
Yes, MJD41CRLG is explicitly designed for general-purpose amplifier applications. Its fT = 3 MHz, hFE stability across temperature, and SOA curve (Figure 12) support linear operation in class-A or class-AB emitter-follower stages. Designers must ensure proper heatsinking and biasing to maintain TJ < 150°C and avoid second breakdown during sustained output swing.
MJD41CRLG 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:
- NPN
- 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
MJD41CRLG FAQ
1.How can I place an order for MJD41CRLG through Aetrix?
Please submit a Request for Quotation (RFQ) for MJD41CRLG 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 MJD41CRLG reliable?
The price and inventory of MJD41CRLG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MJD41CRLG is usually 5 days.
3.What payment methods are accepted for MJD41CRLG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MJD41CRLG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MJD41CRLG?
MJD41CRLG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MJD41CRLG 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 MJD41CRLG?
For technical support, including MJD41CRLG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MJD41CRLG requirements.
6.How does Aetrix verify that MJD41CRLG is sourced from the original manufacturer or authorized distributors?
All MJD41CRLG 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 MJD41CRLG meets industry standards.
7.What is the process for return or replacement of MJD41CRLG?
All MJD41CRLG units undergo pre-shipment inspection (PSI). If there is an issue with MJD41CRLG, 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 MJD41CRLG part is unused and in its original packaging.
Return procedure for MJD41CRLG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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