onsemi NJVMJB42CT4G
- Part No.:
- NJVMJB42CT4G
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
NJVMJB42CT4G.pdf
- Description:
- TRANS PNP 100V 6A D2PAK
- Quantity:
- Payment:

- Shipping:

Inventory:482
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Product details
Overview
NJVMJB42CT4G from onsemi is a PNP silicon power transistor in D2PAK (TO-263) surface-mount package, rated for 100 VCEO, 6.0 A continuous collector current, and 65 W total power dissipation at TC = 25 °C. It delivers VCE(sat) ≤ 1.5 V at IC = 6.0 A / IB = 600 mA and supports automotive-grade operation per AEC-Q101. It is used in high-current linear regulators and DC motor control stages.
For engineers reviewing the NJVMJB42CT4G datasheet, pinout, applications, or equivalent options, key selection criteria include its PNP polarity, D2PAK thermal performance (RJC = 1.92 °C/W), safe operating area under pulsed loads, and Pb-free compliance for industrial and automotive PCB assembly.
Technical Context
This device operates as a medium-power PNP bipolar junction transistor with complementary pairing to NJVMJB41CT4G (NPN). Its electrical behavior is defined by hFE = 30–75 at IC = 0.3 A and 15–75 at IC = 3.0 A, with fT = 3.0 MHz under specified test conditions. It exhibits unclamped inductive switching capability up to 62.5 mJ at IC = 2.5 A, L = 20 mH.
The NJVMJB42CT4G is thermally optimized for surface-mount use on FR-4 boards, achieving RJA = 50 °C/W with minimum recommended pad size. Its junction temperature range spans −65 °C to +150 °C, and it supports soldering at 260 °C for 10 seconds at 1/8″ from case.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 100 Vdc - Maximum collector-emitter voltage before breakdown under open-base condition; defines maximum blocking capability in switching applications. |
| IC (continuous) | 6.0 Adc - Continuous collector current rating at TC = 25 °C; sets baseline load-handling capacity for linear or switching use. |
| PD @ TC = 25 °C | 65 W - Total power dissipation limit with heatsink contact; enables high-current operation when mounted to thermally conductive surfaces. |
| VCE(sat) | ≤1.5 Vdc at IC = 6.0 A / IB = 600 mA - Low saturation voltage minimizes conduction loss in high-side switch or regulator configurations. |
| hFE | 30–75 at IC = 0.3 A - DC current gain range determines required base drive strength for reliable turn-on in amplifier or switch circuits. |
| RJC | 1.92 °C/W - Junction-to-case thermal resistance confirms efficient heat transfer to external heatsink or PCB copper plane. |
| AEC-Q101 | Qualified - Meets stress-test requirements for automotive electronics, including temperature cycling, HTRB, and ESD robustness. |
Pinout & Package
Package: D2PAK (TO-263), Case 418B−04, surface-mount plastic power package with exposed drain tab (pin 2 and 4) serving as collector terminal and thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control input for forward-biased PNP operation; requires negative bias relative to emitter to turn on. |
| 2 | Collector | Main current-carrying terminal connected to high-side supply rail; electrically tied to exposed metal tab for thermal and electrical conduction. |
| 3 | Emitter | Output/reference terminal; typically connected to load or ground in high-side switch configuration. |
| 4 | Collector | Second collector connection-parallel to pin 2-to reduce current density and improve thermal distribution across the package tab. |
Key Features
| Feature | Design Value |
|---|---|
| Lead-formed for surface mount | Pre-bent leads enable direct placement and reflow soldering without mechanical modification; eliminates through-hole assembly steps. |
| Electrically identical to TIP42 series | Drop-in compatibility with legacy TIP42C designs allows upgrade path without circuit redesign or layout change. |
| NJV prefix | Indicates automotive qualification (AEC-Q101) and PPAP-capable manufacturing traceability-required for Tier 1 automotive supply chain compliance. |
| Pb-free packaging | G-suffix confirms RoHS-compliant termination and solderability; meets IPC-J-STD-020 moisture sensitivity level (MSL) requirements for SMT processes. |
| Unclamped inductive energy rating | 62.5 mJ at IC = 2.5 A - Enables robust operation in relay drivers and solenoid controls without external snubbers in many cases. |
Applications
| High-Current Linear Regulator | Automotive Door Lock Actuator Driver |
|---|---|
|
Use Scenario: High-stability 5 V/3 A output stage in industrial power supplies where low dropout and minimal external components are critical. IC Role / Device Role / Timing Role: PNP pass transistor regulating output voltage via emitter-follower configuration with feedback loop controlling base bias. Use Value: VCE(sat) ≤ 1.5 V ensures <1.5 V dropout at full load, enabling efficient regulation from 6.5 V input while maintaining thermal margin via RJC = 1.92 °C/W. |
Use Scenario: Driving 12 V DC brushed motors in vehicle door lock mechanisms requiring bidirectional pulse control and reverse EMF handling. IC Role / Device Role / Timing Role: High-side PNP switch enabling controlled energization of motor windings; paired with N-channel logic-level MOSFET for H-bridge half-bridge topology. Use Value: 62.5 mJ unclamped inductive energy rating absorbs back-EMF spikes during motor commutation without clamping diodes, reducing BOM count and board space. |
| Industrial Fan Speed Controller | DC Power Distribution Switch |
|
Use Scenario: PWM-controlled 24 V cooling fan in programmable logic controller (PLC) enclosures operating continuously at ambient temperatures up to 70 °C. IC Role / Device Role / Timing Role: PNP switching element modulating fan current at 25 kHz; base driven by microcontroller GPIO through current-limiting resistor. Use Value: RJA = 50 °C/W on FR-4 ensures junction temperature remains below 135 °C at 3 A average load, supporting 20-year field life in sealed industrial environments. |
Use Scenario: Overcurrent-protected 48 V DC power rail switch in telecom rectifier modules, interfacing with upstream current-sense amplifiers and shutdown logic. IC Role / Device Role / Timing Role: Main pass element in high-side current-limiting circuit; emitter tied to load, collector to supply, base controlled by protection IC. Use Value: 100 VCEO rating provides 2× safety margin over 48 V nominal rail, while hFE ≥ 30 ensures stable current limiting down to 100 mA fault thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MJB42CT4G | No NJV prefix; not AEC-Q101 qualified; same electrical specs and D2PAK package. | Limited to non-automotive industrial use; lacks PPAP documentation and extended reliability testing. | Select when automotive qualification is unnecessary and cost sensitivity outweighs long-term supply assurance. |
| TIP42C | TO-220 through-hole package; identical VCEO, IC, and hFE ratings but higher RJA (~65 °C/W). | Requires drilled PCB and heatsink mounting; unsuitable for automated SMT lines or space-constrained layouts. | Choose only for prototyping, repair, or legacy through-hole systems where rework flexibility is prioritized over production efficiency. |
Compared with NJVMJB42CT4G, MJB42CT4G offers identical performance at lower qualification cost, while TIP42C trades surface-mount compatibility for mechanical serviceability-making NJVMJB42CT4G the optimal choice for new AEC-Q101-compliant SMT designs requiring thermal efficiency and supply-chain traceability.
Availability
NJVMJB42CT4G is available at Aetrix Electronics and suitable for automotive body control modules, industrial motor drives, and high-reliability linear power supplies requiring stable component supply, long-lifecycle support, and AEC-Q101 compliance.
Supply support for NJVMJB42CT4G 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 is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The MJB4x series was developed for high-current, high-voltage discrete switching and linear regulation in space-constrained surface-mount applications-emphasizing thermal performance, automotive qualification, and drop-in compatibility with legacy TO-220 power transistors.
FAQ
What is the maximum junction temperature rating for NJVMJB42CT4G?
The NJVMJB42CT4G has an operating junction temperature range of −65 °C to +150 °C. This wide range supports deployment in under-hood automotive environments and industrial enclosures with elevated ambient temperatures. The device's thermal resistance values (RJC = 1.92 °C/W, RJA = 50 °C/W on FR-4) allow accurate junction temperature estimation using measured case or ambient temperatures and actual power dissipation in the NJVMJB42CT4G application.
Is NJVMJB42CT4G pin-compatible with TIP42C?
No, NJVMJB42CT4G is not pin-compatible with TIP42C. While both are PNP power transistors with identical electrical specifications, NJVMJB42CT4G uses the D2PAK (TO-263) surface-mount package with four terminals (Base, Collector, Emitter, Collector), whereas TIP42C uses the TO-220 through-hole package with three pins in different physical arrangement. PCB layout and assembly process must be redesigned to migrate from TIP42C to NJVMJB42CT4G.
Does NJVMJB42CT4G require a heatsink in typical applications?
Yes, NJVMJB42CT4G requires thermal management via PCB copper pour or external heatsink when dissipating more than ~2 W continuously. At 6.0 A collector current and 1.5 V saturation voltage, conduction loss reaches 9 W-exceeding its 2.0 W ambient-rated power dissipation. Mounting the D2PAK tab to ≥10 cm² of 2-oz copper with thermal vias reduces effective RJA and keeps junction temperature within safe limits for the NJVMJB42CT4G in sustained-load scenarios.
What does the "NJV" prefix signify in NJVMJB42CT4G?
The "NJV" prefix in NJVMJB42CT4G indicates onsemi's automotive-grade product variant: it denotes AEC-Q101 qualification, PPAP capability, enhanced traceability (wafer lot, assembly site, date code), and controlled change management per automotive quality standards. This distinguishes it from standard MJB42CT4G, which shares identical electrical performance but lacks automotive-specific reliability validation and documentation rigor required for NJVMJB42CT4G deployment in vehicle systems.
Can NJVMJB42CT4G be used in complementary pair configurations with NJVMJB41CT4G?
Yes, NJVMJB42CT4G is explicitly designed as the PNP complement to NJVMJB41CT4G (NPN) in the same D2PAK package. Their matched VCEO, IC, PD, and thermal characteristics enable symmetrical push-pull amplifier stages, H-bridge motor drivers, and balanced linear regulators. Both share identical footprint, thermal profile, and AEC-Q101 qualification-ensuring consistent performance and reliability when used together as a matched pair in NJVMJB42CT4G/NJVMJB41CT4G designs.
NJVMJB42CT4G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- 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):
- 700µA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 15 @ 3A, 4V
- Power - Max:
- 2 W
- Frequency - Transition:
- 3MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
NJVMJB42CT4G FAQ
1.How can I place an order for NJVMJB42CT4G through Aetrix?
Please submit a Request for Quotation (RFQ) for NJVMJB42CT4G 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 NJVMJB42CT4G reliable?
The price and inventory of NJVMJB42CT4G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NJVMJB42CT4G is usually 5 days.
3.What payment methods are accepted for NJVMJB42CT4G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NJVMJB42CT4G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NJVMJB42CT4G?
NJVMJB42CT4G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NJVMJB42CT4G 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 NJVMJB42CT4G?
For technical support, including NJVMJB42CT4G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NJVMJB42CT4G requirements.
6.How does Aetrix verify that NJVMJB42CT4G is sourced from the original manufacturer or authorized distributors?
All NJVMJB42CT4G 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 NJVMJB42CT4G meets industry standards.
7.What is the process for return or replacement of NJVMJB42CT4G?
All NJVMJB42CT4G units undergo pre-shipment inspection (PSI). If there is an issue with NJVMJB42CT4G, 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 NJVMJB42CT4G part is unused and in its original packaging.
Return procedure for NJVMJB42CT4G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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