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Microchip Technology MPLAD36KP24AE3/TR
- Part No.:
- MPLAD36KP24AE3/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP24AE3/TR.pdf
- Description:
- SURFACE MOUNT 36,000 WATT, TVS,
- Quantity:
- Payment:
- Shipping:
Inventory:7,453
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Product details
Overview
MPLAD36KP24AE3/TR from Microchip Technology (formerly Microsemi) is a unidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace, automotive, and industrial power rails. It features a 24 V working standoff voltage (VWM), 39.8 V maximum clamping voltage (VC) at 905 A peak pulse current (IPP), and 36,000 W peak pulse power rating at 10/1000 μs waveform - validated for RTCA DO-160 Section 22 multi-stroke lightning compliance.
For engineers reviewing the MPLAD36KP24AE3/TR datasheet, MPLAD36KP24AE3/TR pinout, MPLAD36KP24AE3/TR application, or MPLAD36KP24AE3/TR equivalent, key selection criteria include clamping performance under 905 A surge, thermal resistance (RθJC = 1.0 °C/W), RoHS-compliant matte-tin plating, and compatibility with FR4 PCBs using the specified pad layout for optimal heat dissipation.
Technical Context
This TVS diode operates in avalanche breakdown mode to clamp transients above its 24 V standoff threshold, delivering sub-100 ps response time in unidirectional configuration. Its low RθJC of 1.0 °C/W enables effective junction-to-case thermal transfer when mounted on heatsinked copper pads, supporting sustained operation up to +150 °C junction temperature.
It meets IEC 61000-4-5 (42 Ω source) Class 1–5 secondary lightning protection and RTCA/DO-160G Waveform 4 (6.4/69 μs) Level 4–5 pin injection requirements. Standby leakage (ID ≤ 10 µA at VWM) ensures minimal impact on 24 V system bias integrity during normal operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous DC or repetitive peak reverse voltage applied without conduction; matches nominal 24 V rail systems. |
| VBR @ IBR | 26.7–29.5 V @ 5 mA - Breakdown onset range; ensures reliable turn-on before downstream component damage thresholds. |
| VC @ IPP | 39.8 V @ 905 A - Clamped voltage during full-rated 10/1000 μs surge; limits stress on protected ICs to safe levels. |
| PPP | 36,000 W - Peak pulse power handling capability; supports multi-stroke lightning events per DO-160 Section 22. |
| RθJC | 1.0 °C/W - Junction-to-case thermal resistance; requires direct metal pad contact for thermal management. |
| ID @ VWM | ≤10 µA - Reverse leakage at rated standoff; negligible loading on 24 V supply under quiescent conditions. |
| TJ | –55 to +150 °C - Operating junction temperature range; qualified for under-hood automotive and avionics environments. |
Pinout & Package
The MPLAD36KP24AE3/TR uses the PLAD surface-mount package: void-free thermosetting epoxy body (UL94V-0), tin-plated terminals, and cathode marked on the metal base (underside). Mounting requires thermal pad per Figure 7 in datasheet Rev B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top surface) | Transient current entry point | Connected to protected line (e.g., 24 V rail); conducts surge toward cathode during overvoltage event. |
| Cathode (metal base) | Transient current exit path & thermal interface | Must be soldered to large copper pour or heatsink; serves as primary thermal conduction path and return to ground. |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW surge rating | Enables single-device protection against DO-160 Section 22 multi-stroke lightning surges without cascaded stages. |
| 1.0 °C/W RθJC | Allows >90% of surge energy to dissipate through case into PCB copper, reducing thermal stress on silicon junction. |
| AEC-Q101 qualification | Validates reliability for automotive powertrain and chassis applications subject to vibration, thermal cycling, and humidity. |
| RoHS-compliant e3 marking | Confirms matte-tin plating meets JEDEC J-STD-020D.1 Level 1 moisture sensitivity - no dry pack required pre-reflow. |
| RTCA DO-160G Waveform 4 Level 4 support | Guarantees clamping performance for 6.4/69 μs pin-injection transients up to 25 kV in aircraft electronics bays. |
Applications
| Automotive Load Dump Protection | Aerospace Power Bus Protection |
|---|---|
Use Scenario: 12–24 V vehicle electrical systems exposed to ISO 7637-2 Pulse 5a load dump transients (up to 120 V, 400 ms). IC Role / Device Role / Timing Role: Primary clamping device placed at battery input of ECUs, ADAS controllers, and infotainment head units. Use Value: Limits voltage to ≤39.8 V during 905 A surge, preventing damage to 40 V-rated DC-DC converters and microcontrollers. | Use Scenario: 28 V DC distribution in commercial aircraft avionics bays subjected to RTCA DO-160 Section 22 lightning-induced surges. IC Role / Device Role / Timing Role: Secondary surge protector on ARINC 429 data line power supplies and flight control actuator drivers. Use Value: Meets multi-stroke endurance requirements with <100 ps response, ensuring signal integrity across repeated lightning strikes. |
| Industrial 24 V PLC I/O Protection | Renewable Energy DC Link Protection |
Use Scenario: Digital input modules in programmable logic controllers interfacing with field sensors in electrically noisy factory environments. IC Role / Device Role / Timing Role: Front-end transient suppressor on 24 V sensor supply lines, upstream of optocouplers and level shifters. Use Value: Clamps EFT bursts (IEC 61000-4-4) and ESD (IEC 61000-4-2) to <40 V, preserving isolation barrier integrity and ADC reference stability. | Use Scenario: DC bus between solar inverters and battery storage systems exposed to grid-switching transients and lightning-induced ground potential rise. IC Role / Device Role / Timing Role: High-power crowbar device on 24–48 V DC link, coordinated with fuses to clear faults after clamping. Use Value: Absorbs 36,000 W pulses without degradation, enabling single-stage protection architecture and reducing bill-of-materials count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A | Lower PPP (600 W), higher VC (38.9 V @ 15.4 A), SMC package with RθJC = 13.5 °C/W. | Only suitable for low-energy ESD/EFT; cannot meet DO-160 lightning or load dump requirements. | Select SMBJ24A only for cost-sensitive consumer-grade 24 V interfaces where surge energy is <100 J. |
| SMCJ24A | 1500 W PPP, VC = 38.9 V @ 38.9 A, same SMC package but higher surge rating than SMBJ. | Limited to single-stroke IEC 61000-4-5 Class 4; fails multi-stroke DO-160 validation. | Choose SMCJ24A for industrial controls needing higher surge margin than SMBJ but not certified aviation-grade performance. |
Compared with SMBJ24A and SMCJ24A, MPLAD36KP24AE3/TR delivers 24× higher peak power handling and certified multi-stroke lightning endurance - essential for aerospace, automotive, and critical infrastructure where single-point failure is unacceptable.
Availability
MPLAD36KP24AE3/TR is available at Aetrix Electronics and suitable for automotive load dump protection, aerospace power bus hardening, and industrial 24 V PLC I/O requiring stable component supply across extended production lifecycles.
Supply support for MPLAD36KP24AE3/TR 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
Microchip Technology acquired Microsemi in 2018 and now offers its high-reliability discrete portfolio including radiation-tolerant and aerospace-qualified components.
The MPLAD36KP series was developed specifically for mission-critical surge protection in avionics, defense electronics, and automotive systems demanding certified multi-stroke lightning resilience and AEC-Q101 reliability.
FAQ
What is the clamping voltage of MPLAD36KP24AE3/TR at its rated peak pulse current?
The MPLAD36KP24AE3/TR has a maximum clamping voltage (VC) of 39.8 V when subjected to its rated 905 A peak pulse current (IPP) under the standard 10/1000 μs waveform. This value is guaranteed across temperature and ensures protected downstream circuitry remains below 40 V during worst-case surge events. The MPLAD36KP24AE3/TR achieves this while maintaining low dynamic impedance due to its optimized silicon geometry and low RθJC.
Is MPLAD36KP24AE3/TR suitable for automotive applications requiring AEC-Q101 qualification?
Yes, MPLAD36KP24AE3/TR is explicitly AEC-Q101 qualified per the manufacturer's datasheet Revision B. This certification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - validating its use in automotive powertrain, chassis, and body electronics. The MPLAD36KP24AE3/TR also meets ISO 7637-2 Pulse 5a load dump requirements when properly mounted on thermally enhanced PCBs.
Does MPLAD36KP24AE3/TR require moisture-sensitive handling prior to reflow soldering?
No, MPLAD36KP24AE3/TR has IPC/JEDEC J-STD-020D.1 moisture sensitivity level (MSL) 1, meaning it is not moisture sensitive and does not require dry packing or floor-life controls before reflow. The device's void-free epoxy body and RoHS-compliant matte-tin plating enable direct placement and standard Pb-free reflow profiles up to 260 °C peak temperature, as confirmed in the official datasheet.
How does the thermal design of MPLAD36KP24AE3/TR differ from standard SMC/SMB TVS diodes?
MPLAD36KP24AE3/TR features RθJC = 1.0 °C/W - over 13× lower than typical SMC-packaged TVS diodes (~13.5 °C/W). This is achieved via its metal-base cathode construction, which must be soldered directly to a large thermal pad. Unlike SMB/SMC devices that rely on lead-frame conduction, the MPLAD36KP24AE3/TR transfers >90% of surge heat through the case into the PCB, enabling sustained high-power operation without thermal runaway.
Can MPLAD36KP24AE3/TR be used for bidirectional surge protection?
No, MPLAD36KP24AE3/TR is a unidirectional TVS diode, indicated by the "A" suffix (not "CA"). It conducts only during reverse-biased overvoltage events on the anode relative to cathode. For bidirectional protection, Microchip offers the MPLAD36KP24CAE3/TR variant. Using MPLAD36KP24AE3/TR on AC or bipolar signal lines would result in forward conduction during negative half-cycles, potentially damaging the device or circuit.
MPLAD36KP24AE3/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- Nonstandard SMD
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 39.8V
- Current - Peak Pulse (10/1000µs):
- 905A
- Power - Peak Pulse:
- 36000W (36kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PLAD
MPLAD36KP24AE3/TR FAQ
1.How can I place an order for MPLAD36KP24AE3/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP24AE3/TR 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 MPLAD36KP24AE3/TR reliable?
The price and inventory of MPLAD36KP24AE3/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP24AE3/TR is usually 5 days.
3.What payment methods are accepted for MPLAD36KP24AE3/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP24AE3/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP24AE3/TR?
MPLAD36KP24AE3/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP24AE3/TR 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 MPLAD36KP24AE3/TR?
For technical support, including MPLAD36KP24AE3/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP24AE3/TR requirements.
6.How does Aetrix verify that MPLAD36KP24AE3/TR is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP24AE3/TR 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 MPLAD36KP24AE3/TR meets industry standards.
7.What is the process for return or replacement of MPLAD36KP24AE3/TR?
All MPLAD36KP24AE3/TR units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP24AE3/TR, 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 MPLAD36KP24AE3/TR part is unused and in its original packaging.
Return procedure for MPLAD36KP24AE3/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP24AE3/TR Tags
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