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Diodes Incorporated MJD32CQ-13
- Part No.:
- MJD32CQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
MJD32CQ-13.pdf
- Description:
- TRANS PNP 100V 3A TO-252-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,176
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Product details
Overview
MJD32CQ-13 from Diodes Incorporated is a 100V PNP bipolar junction transistor (BJT) in TO252 (DPAK) package, rated for -3A continuous collector current and -100V collector-emitter breakdown voltage. It is AEC-Q101 qualified, RoHS-compliant, and designed for automotive power switching applications such as body control modules and lighting drivers.
For engineers reviewing the MJD32CQ-13 datasheet, MJD32CQ-13 pinout, MJD32CQ-13 application, or MJD32CQ-13 equivalent, key selection criteria include its -100V VCEO, -3A IC, TO252 thermal performance (RθJA = 32°C/W on 50mm × 50mm 2oz Cu), complementary pairing with MJD31CQ, and AEC-Q101 qualification status.
Technical Context
This PNP BJT operates in linear amplification or saturated switching mode, with VBE(on) = -1.8V at -3A and VCE(sat) = -1.2V at -3A/-375mA drive. Its hFE ranges from 25 to 50 at -1A to -3A, supporting robust base-driven switching in high-side configurations.
The device features an exposed collector pad for thermal conduction, enabling 15W total power dissipation under optimized PCB layout. Its safe operating area (SOA) is defined up to 100ms single-pulse at -100V/-3A, with ESD ratings of 4kV HBM and 400V MM for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -100 V - Supports high-side switching in 48V automotive systems with margin against transients |
| IC (cont.) | -3 A - Enables direct drive of medium-power loads like solenoids or LED arrays without external buffering |
| VCE(sat) | -1.2 V @ -3A/-375mA - Limits conduction loss to ≤3.6W at full load, easing thermal design |
| hFE | 25–50 @ -1A to -3A - Ensures stable base current sizing across production lots and temperature range |
| RθJA | 32 °C/W (50mm × 50mm 2oz Cu) - Allows junction-to-ambient rise of ≤125°C at 3.9W dissipation in still air |
| TJ Range | -55°C to +150°C - Meets under-hood automotive ambient requirements per AEC-Q101 stress testing |
| ESD HBM | 4,000 V - Provides robust handling during automated assembly and system integration |
Pinout & Package
Package: TO252 (DPAK), surface-mount, with exposed collector pad for thermal and electrical connection. Molded green compound, matte tin-plated leads, JEDEC-compliant footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Collector (Tab) | Main current path, thermally coupled to PCB copper | Exposed metal pad serves as both high-current output and primary heat sink interface |
| Emitter | Current source terminal in PNP configuration | Connected to higher potential rail; enables high-side switch topology |
| Base | Control input for transistor biasing | Requires negative drive relative to emitter; typical RB = 10Ω–100Ω for fast turn-on |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use with PPAP capability and IATF16949 manufacturing |
| High-voltage blocking | Guaranteed -100V VCEO supports 48V/60V battery architectures with transient headroom |
| Thermal performance | RθJL = 8.4°C/W enables efficient heat transfer from junction to solder point |
| Green compliance | Halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb), RoHS 3 compliant |
| Complementary pairing | Matched with MJD31CQ NPN for push-pull or H-bridge driver stages |
Applications
| Automotive Body Control Module | LED Headlamp Driver |
|---|---|
Use Scenario: Switching 12V/24V loads including door locks, window motors, and HVAC actuators in centralized BCMs. IC Role / Device Role / Timing Role: High-side PNP switch controlling ground-referenced loads via microcontroller GPIO. Use Value: -100V rating withstands load-dump transients; -3A capacity eliminates need for external driver stages. | Use Scenario: Constant-current dimming and on/off control of high-brightness LED strings in adaptive front lighting systems. IC Role / Device Role / Timing Role: Linear or PWM-controlled current sink in series with LED string, driven by analog or digital signal. Use Value: Low VCE(sat) minimizes power loss and thermal rise; AEC-Q101 ensures long-term reliability in sealed headlamp enclosures. |
| Industrial Power Sequencer | DC Motor Brake Circuit |
Use Scenario: Controlled power-up/down sequencing of multiple subsystems in factory automation controllers. IC Role / Device Role / Timing Role: Voltage-level translator and current amplifier between low-voltage logic and 24V/48V power rails. Use Value: Wide TJ range (-55°C to +150°C) supports operation in uncontrolled industrial cabinets; TO252 footprint simplifies layout. | Use Scenario: Dynamic braking of brushed DC motors by shorting armature windings through a controlled path. IC Role / Device Role / Timing Role: Fast-turn-on PNP switch connecting motor terminals to ground during deceleration. Use Value: -5A ICM handles peak regenerative currents; SOA curve validated for 100ms pulses at full voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP high-voltage switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MJD32CUQ | Same die, TO252 package with enhanced thermal pad design and tighter VCE(sat) spec (-1.1V max) | Preferred for new designs requiring improved thermal resistance and lower conduction loss | Select MJD32CUQ for new designs; MJD32CQ remains valid for legacy compatibility and cost-sensitive programs |
| STP10P6F6 | PNP MOSFET (not BJT), -60V VDSS, -10A ID, gate-driven, no base current required | Suitable where ultra-low gate drive power and zero base current are critical | Choose STP10P6F6 only if system architecture supports gate-drive isolation and voltage level translation |
Compared with MJD32CQ-13, MJD32CUQ offers better thermal performance and tighter saturation voltage, while STP10P6F6 shifts to MOSFET-based control with higher current but lower voltage rating and different drive requirements.
Availability
MJD32CQ-13 is available at Aetrix Electronics and suitable for automotive body control modules, LED lighting drivers, industrial power sequencers, and DC motor brake circuits requiring stable component supply and AEC-Q101 assurance.
Supply support for MJD32CQ-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 MJD32CQ belongs to Diodes' Automotive-Grade Bipolar Transistor product line, engineered specifically for high-reliability power switching in harsh-environment vehicle systems, with emphasis on AEC-Q101 compliance and thermal robustness.
FAQ
Is MJD32CQ-13 pin-compatible with MJD32CUQ?
Yes, MJD32CQ-13 and MJD32CUQ share identical TO252 (DPAK) pinout and mechanical footprint. Both use Collector (tab), Emitter, and Base pin assignments in the same top-view configuration. No PCB redesign is needed when upgrading to MJD32CUQ, though layout optimization for the enhanced thermal pad is recommended.
What is the minimum base current required to saturate MJD32CQ at 3A collector current?
At -3A IC, saturation requires IB ≥ -375mA per datasheet test condition. With hFE(min) = 25 at this current, a design-safe base drive of -450mA ensures reliable saturation across temperature and process variation. A 10Ω base resistor from a -5V logic source delivers -500mA, meeting this requirement.
Can MJD32CQ-13 be used in linear regulator applications?
No - MJD32CQ-13 is not characterized or qualified for linear regulation. Its Safe Operating Area (SOA) limits continuous operation above ~1.5W at elevated voltages, and thermal runaway risk increases under constant VCE/IC bias. It is specified and tested exclusively for switching and amplification roles per DS37050.
Does MJD32CQ-13 require a heatsink in standard automotive applications?
A dedicated heatsink is not required if PCB copper area meets Diodes' recommended layout: 50mm × 50mm 2oz Cu for RθJA = 32°C/W. At 3.9W dissipation and 25°C ambient, junction temperature reaches ~153°C - within 150°C limit only with forced airflow or derating. For sustained 3A operation, thermal vias to inner layers or localized copper pour are strongly advised.
MJD32CQ-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):
- 3 A
- Voltage - Collector Emitter Breakdown (Max):
- 100 V
- Vce Saturation (Max) @ Ib, Ic:
- 1.2V @ 375mA, 3A
- Current - Collector Cutoff (Max):
- 1µA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 10 @ 3A, 4V
- Power - Max:
- 15 W
- Frequency - Transition:
- 3MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-3
MJD32CQ-13 FAQ
1.How can I place an order for MJD32CQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for MJD32CQ-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 MJD32CQ-13 reliable?
The price and inventory of MJD32CQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MJD32CQ-13 is usually 5 days.
3.What payment methods are accepted for MJD32CQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MJD32CQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MJD32CQ-13?
MJD32CQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MJD32CQ-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 MJD32CQ-13?
For technical support, including MJD32CQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MJD32CQ-13 requirements.
6.How does Aetrix verify that MJD32CQ-13 is sourced from the original manufacturer or authorized distributors?
All MJD32CQ-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 MJD32CQ-13 meets industry standards.
7.What is the process for return or replacement of MJD32CQ-13?
All MJD32CQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with MJD32CQ-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 MJD32CQ-13 part is unused and in its original packaging.
Return procedure for MJD32CQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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