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Diodes Incorporated MJD42CQ-13
- Part No.:
- MJD42CQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
MJD42CQ-13.pdf
- Description:
- TRANS PNP 100V 6A TO252
- Quantity:
- Payment:
- Shipping:
Inventory:2,490
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Product details
Overview
MJD42CQ-13 from Diodes Incorporated is a 100V PNP medium-power bipolar junction transistor in TO252 (DPAK) package, rated for −6A continuous collector current and −100V collector-emitter breakdown voltage. It delivers −1.5V VCE(sat) at −6A/−600mA drive and supports automotive-grade operation with AEC-Q101 qualification, IATF16949 manufacturing, and PPAP capability. It serves as a high-voltage switching element in DC-DC converter output stages and motor driver H-bridge low-side legs.
For engineers reviewing the MJD42CQ-13 datasheet, MJD42CQ-13 pinout, MJD42CQ-13 application, or MJD42CQ-13 equivalent, key selection criteria include verified PNP polarity, TO252 thermal performance on 25mm × 25mm 2oz copper, −100V BVCEO margin for 48V industrial systems, and complementary pairing with MJD41CQ in push-pull configurations.
Technical Context
This PNP transistor operates in linear amplification or saturated switching modes, with hFE ranging from 30 (at −0.3A) to 15 (at −3A) under VCE = −4V bias. Its safe operating area (SOA) is defined up to 100µs pulse width at −100V/−10A, constrained by second breakdown limits and thermal impedance curves.
Thermal design requires attention to the exposed collector pad: RθJA varies from 46°C/W (25mm × 25mm 2oz Cu) to 83°C/W (minimum recommended pad), directly impacting maximum continuous power dissipation (1.5W–2.7W). ESD robustness includes 4kV HBM and 400V MM ratings per JEDEC standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −100 V: Sustains full blocking voltage across collector-emitter in open-base condition, enabling use in 48V bus switching. |
| IC (cont.) | −6 A: Continuous current handling capacity with appropriate PCB copper area, supporting ≥50W switched loads. |
| VCE(sat) | −1.5 V @ −6A/−600mA: Confirmed saturation voltage ensures <9W conduction loss at rated current. |
| fT | 3 MHz: Current gain-bandwidth product suitable for audio-frequency amplification and PWM switching below 500kHz. |
| RθJA | 46 °C/W (2oz Cu): Thermal resistance baseline for calculating junction temperature rise under steady-state 2.7W dissipation. |
| hFE | 30 @ −0.3A: Minimum DC current gain at low current, ensuring reliable base drive in linear regulator pass elements. |
Pinout & Package
Package: TO252 (DPAK), surface-mount, with exposed collector pad for thermal conduction and mechanical anchoring. Molded green compound (UL 94V-0), matte tin-plated leads, 0.34g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Collector (Tab) | Main current path input/output terminal | Exposed metal tab electrically connected to collector; must be soldered to large copper pour for thermal management and electrical connection. |
| Base | Control electrode | Receives negative base current to turn on PNP device; requires current-limiting resistor in series with microcontroller GPIO or driver IC. |
| Emitter | Current source reference node | Connected to higher potential rail (e.g., +48V); defines common reference for load return path in high-side switch configurations. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics applications requiring zero-defect reliability and change control. |
| TO252 thermal pad | Enables 2.7W continuous power dissipation when mounted on 25mm × 25mm 2oz copper, reducing need for heatsinks in space-constrained designs. |
| Complementary NPN pair | MJD41CQ shares identical package, voltage/current ratings, and thermal profile-enabling matched push-pull stage design without layout asymmetry. |
| Green, RoHS-compliant | Halogen- and antimony-free molding compound (<900ppm Br/Cl, <1000ppm Sb) meets automotive environmental compliance requirements. |
Applications
| Automotive HVAC Blower Control | Industrial 48V DC-DC Converter Output Stage |
|---|---|
|
Use Scenario: Regulating airflow in vehicle cabin by switching 48V blower motor via PWM-driven PNP transistor. IC Role / Device Role / Timing Role: Low-side switch in half-bridge configuration, sinking motor current during active PWM cycles. Use Value: −100V BVCEO provides 2× margin over 48V nominal bus, while −1.5V VCE(sat) limits conduction loss to ≤9W at full 6A load. |
Use Scenario: Synchronous rectification or freewheeling path in isolated 48V-to-12V flyback or forward converter. IC Role / Device Role / Timing Role: PNP freewheeling switch conducting during transformer reset phase to recover energy and reduce losses. Use Value: 3MHz fT supports clean turn-off at 200kHz switching frequency; SOA curve validates 100µs pulse handling at −100V/−10A peak stress. |
| Programmable LED Driver for Commercial Lighting | PLC Digital Output Module (Sink Type) |
|
Use Scenario: Constant-current dimming of high-brightness LED strings powered from 36–60V DC rails. IC Role / Device Role / Timing Role: Linear current regulator pass element, dissipating excess voltage as heat while maintaining precise LED current. Use Value: hFE ≥30 at −0.3A ensures stable closed-loop regulation with minimal base drive overhead; −7V VEBO prevents emitter-base breakdown during reverse transient events. |
Use Scenario: Industrial PLC output driving solenoids, relays, or indicator lamps requiring 24–48V sink capability. IC Role / Device Role / Timing Role: High-voltage, high-current sinking switch interfacing field devices to controller logic ground. Use Value: −10A ICM accommodates inrush currents of inductive loads; AEC-Q101 qualification ensures long-term reliability in harsh factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP medium-power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MJD42CT4G | Same die, TO220 package; no exposed thermal pad; RθJA = 65°C/W (free air). | Lacks surface-mount compatibility and superior thermal performance of TO252; suited for through-hole prototyping or legacy board reuse. | Select when manual assembly or vertical mounting is required; avoid where PCB space or thermal density constraints exist. |
| PNX4201 | −100V VCEO, −6A IC, but TO252-2 variant with different pinout (Emitter/Base swapped vs. MJD42CQ). | Pinout mismatch prevents direct replacement; requires PCB redesign or adapter footprint. | Choose only if sourcing flexibility outweighs layout cost; verify pin mapping before integration. |
Compared with MJD42CQ-13, MJD42CT4G trades surface-mount efficiency for through-hole serviceability, while PNX4201 offers identical ratings but incompatible pin assignment-making MJD42CQ-13 the optimal choice for new TO252-based automotive and industrial designs requiring validated thermal and reliability performance.
Availability
MJD42CQ-13 is available at Aetrix Electronics and suitable for automotive HVAC control, industrial 48V DC-DC converters, and PLC digital output modules requiring stable component supply, AEC-Q101 compliance, and TO252 thermal performance.
Supply support for MJD42CQ-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, specializing in high-reliability power management, signal integrity, and protection solutions for automotive, industrial, and computing markets.
The MJD42CQ belongs to Diodes' automotive-qualified medium-power transistor family, engineered for robust high-voltage switching in engine control units, body electronics, and industrial power supplies where thermal stability and AEC-Q101 validation are mandatory.
FAQ
Is MJD42CQ-13 pin-compatible with MJD41CQ?
No, MJD42CQ-13 (PNP) and MJD41CQ (NPN) are complementary types-not pin-compatible. Their pinouts differ: MJD42CQ has Collector-Base-Emitter (Tab-B-E), while MJD41CQ uses Collector-Base-Emitter (Tab-B-E) but with opposite polarity. Layout must account for reversed current flow and drive polarity; they are intended for matched push-pull pairs, not drop-in substitution.
What is the minimum PCB copper area needed for full 2.7W dissipation?
To achieve the 2.7W rating and 46°C/W RθJA, the exposed collector pad must connect to a 25mm × 25mm copper area with 2oz (70µm) thickness on a single-sided 1.6mm FR4 board. Smaller pads increase thermal resistance-e.g., minimum recommended pad yields RθJA = 83°C/W and max power = 1.5W-requiring derating per Figure 2's derating curve.
Does MJD42CQ-13 support pulsed operation beyond its DC ratings?
Yes, the Safe Operating Area (SOA) graph (Figure 1) confirms pulsed capability: at −100V, it supports −10A for 100µs pulses, and at −50V, up to −15A for 1ms. These limits assume single-pulse conditions with duty cycle ≤2% and pulse width ≤300µs, as specified in Note 9 for VCE(sat) and hFE test conditions.
How does the AEC-Q101 qualification impact supply chain assurance?
AEC-Q101 qualification means MJD42CQ-13 undergoes accelerated stress testing (HTOL, TC, UHAST, etc.) and is produced in IATF16949-certified facilities with PPAP documentation. This enables Aetrix Electronics to provide guaranteed lot traceability, controlled change notifications, and extended product longevity-critical for automotive Tier 1 suppliers and industrial OEMs managing multi-year production cycles.
MJD42CQ-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:
- 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):
- 1µA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 30 @ 300mA, 4V
- Power - Max:
- 1.5 W
- Frequency - Transition:
- 3MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252 (DPAK)
MJD42CQ-13 FAQ
1.How can I place an order for MJD42CQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for MJD42CQ-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 MJD42CQ-13 reliable?
The price and inventory of MJD42CQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MJD42CQ-13 is usually 5 days.
3.What payment methods are accepted for MJD42CQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MJD42CQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MJD42CQ-13?
MJD42CQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MJD42CQ-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 MJD42CQ-13?
For technical support, including MJD42CQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MJD42CQ-13 requirements.
6.How does Aetrix verify that MJD42CQ-13 is sourced from the original manufacturer or authorized distributors?
All MJD42CQ-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 MJD42CQ-13 meets industry standards.
7.What is the process for return or replacement of MJD42CQ-13?
All MJD42CQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with MJD42CQ-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 MJD42CQ-13 part is unused and in its original packaging.
Return procedure for MJD42CQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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