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Microchip Technology MPLAD36KP36AE3
- Part No.:
- MPLAD36KP36AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP36AE3.pdf
- Description:
- TVS DIODE 36VWM 58.1VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:6,794
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Product details
Overview
MPLAD36KP36AE3 from Microsemi is a high-reliability, surface-mount transient voltage suppressor (TVS) designed for primary and secondary lightning protection in aerospace and automotive systems. It delivers 36 kW peak pulse power at 10/1000 μs, features a 36 V reverse standoff voltage (VWM), clamps to ≤58.1 V at 620 A peak impulse current, and operates across –55°C to +150°C junction temperature.
For engineers reviewing the MPLAD36KP36AE3 datasheet, MPLAD36KP36AE3 pinout, MPLAD36KP36AE3 application, or MPLAD36KP36AE3 equivalent, this device is selected for RTCA DO-160 Section 22 multi-stroke lightning compliance, IEC 61000-4-5 Class 3–5 surge immunity, and ESD/EFT protection per IEC 61000-4-2/4-4 - especially where low thermal resistance and metal-base cathode thermal path are critical.
Technical Context
This unidirectional TVS uses a silicon avalanche diode structure optimized for high-energy transients. Its metal-base package provides direct thermal conduction to PCB copper, achieving 1.0 °C/W junction-to-case thermal resistance and enabling sustained multi-pulse operation under <0.05% duty cycle conditions.
It meets AEC-Q101 stress testing requirements and supports MIL-PRF-19500 upscreening options. Clamping response time is <100 ps, and it maintains stable breakdown voltage (40.0–44.2 V) with ±38 mV/°C temperature coefficient - critical for precision overtemperature margining in avionics power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - enables single-device suppression of aircraft load dump and lightning-induced surges without cascading failure. |
| Reverse Standoff Voltage (VWM) | 36 V - matches nominal 28 V DC aircraft bus with 25% margin above peak operating voltage. |
| Max Clamping Voltage (VC) | 58.1 V @ 620 A - ensures downstream 36 V-rated electronics remain within absolute maximum ratings during surge events. |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - allows direct mounting on large copper pour or heatsink for reliable multi-stroke endurance. |
| Operating Temperature Range | –55°C to +150°C - qualified for engine bay, wing-mounted, and flight control unit environments. |
| Moisture Sensitivity Level | Level 1 (per J-STD-020B) - eliminates dry-pack requirement and simplifies SMT assembly logistics. |
| RoHS Compliance | e3 suffix - lead-free matte tin plating compatible with Pb-free reflow profiles and long-term reliability standards. |
Pinout & Package
Package: PLAD (Plastic Leaded Anode Down) - void-free UL94V-0 epoxy body with metal base acting as cathode terminal and primary thermal path. Dimensions: 12.32 × 10.54 × 5.08 mm (L × W × H), weight ~1.7–2.0 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top surface pad) | Transient current entry point | Soldered to protected line (e.g., 28 V bus); low-inductance connection minimizes voltage overshoot during fast-rising transients. |
| Cathode (metal base) | Current return path & thermal interface | Directly bonded to PCB ground plane or heatsink; serves dual role as electrical return and primary heat dissipation path. |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW surge rating | Validated for RTCA DO-160 Section 22 multi-stroke lightning - supports ≥500 pulses at rated energy without parameter shift. |
| Low RθJC (1.0 °C/W) | Enables >2× longer surge duty cycle vs. standard SMB/SMA packages - critical for repeated load dump events in military vehicles. |
| AEC-Q101 qualified | Passes high-temperature reverse bias, temperature cycling, and humidity bias life tests - confirms suitability for automotive safety-critical ECUs. |
| IEC 61000-4-5 Class 5 support | Meets 42 Ω source impedance test up to 300 V VWM devices - verified for short-distance secondary lightning protection in cockpit systems. |
| Pin injection immunity (DO-160F Waveform 4) | Level 5 certified (6.4/69 μs) up to 300 V VWM - protects against induced transients on signal/power lines routed near radar or comms antennas. |
Applications
| Aircraft Power Distribution | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Protection of 28 V DC main bus feeding flight control actuators and sensors against lightning-induced surges per DO-160 Section 22. IC Role / Device Role / Timing Role: Primary transient clamp placed at bus entry point; metal-base cathode thermally coupled to chassis ground. Use Value: Prevents latch-up or destruction of downstream DC-DC converters and FPGAs during multi-stroke lightning events with <100 ps response. |
Use Scenario: Load dump suppression on 12 V/24 V battery-fed ECU power inputs in commercial and off-highway vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS absorbing ISO 7637-2 Pulse 5a/b energy before reaching LDO regulators and microcontrollers. Use Value: Eliminates need for series resistors or additional clamping stages - sustains 36 kW peak power without derating at 100°C ambient. |
| Avionics Signal Line Protection | Railway Traction Control Interface |
Use Scenario: Pin-level protection of ARINC 429 data lines and analog sensor inputs exposed to radiated RFI and ESD in cockpit displays. IC Role / Device Role / Timing Role: Secondary clamp after common-mode chokes; placed adjacent to connector to minimize loop area. Use Value: Meets DO-160F Waveform 4 Level 5 (6.4/69 μs) with <5 ns clamping delay - preserves signal integrity of 100 kbps serial links. |
Use Scenario: Surge protection on 110 V DC control interfaces between traction inverters and train management systems per EN 50121-3-2. IC Role / Device Role / Timing Role: Bidirectional-capable variant used (MPLAD36KP36CA); mounted on isolated ground plane with 42 Ω source impedance matching. Use Value: Withstands repeated Class 4 surges (4 kV, 2 Ω source) without degradation - validated for 20-year service life in rolling stock. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ36A | Lower PPP (400 W), SMA package, RθJA = 55 °C/W, no metal-base thermal path. | Suitable only for single-event, low-duty-cycle consumer-grade protection - not qualified for DO-160 or AEC-Q101. | Select when cost sensitivity outweighs multi-stroke reliability and thermal performance requirements. |
| Vishay V26MLA0603NH | MLV-based (not avalanche diode), 26 V nominal, 100 J energy rating, slower response (>1 ns), no AEC-Q101 or DO-160 validation. | Used in telecom power supplies; lacks aviation qualification and precise clamping voltage control. | Choose only for non-safety-critical industrial AC/DC input stages where voltage tolerance >±15% is acceptable. |
Compared with SMAJ36A and V26MLA0603NH, the MPLAD36KP36AE3 provides 90× higher peak power, certified aerospace qualification, and metal-base thermal architecture - making it the sole option for mission-critical, multi-pulse, high-temperature avionics and defense vehicle applications.
Availability
MPLAD36KP36AE3 is available at Aetrix Electronics and suitable for aircraft power distribution, automotive ECU protection, avionics signal line hardening, and railway traction control interfaces requiring stable component supply across extended product lifecycles.
Supply support for MPLAD36KP36AE3 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
Microsemi (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened ICs for aerospace, defense, and industrial markets.
The MPLAD36KP36AE3 belongs to Microsemi's high-power PLAD TVS family, engineered specifically for DO-160-compliant lightning protection and AEC-Q101-qualified automotive surge immunity - emphasizing thermal robustness and multi-stroke endurance.
FAQ
What is the clamping voltage of MPLAD36KP36AE3 at its rated peak pulse current?
The MPLAD36KP36AE3 has a maximum clamping voltage (VC) of 58.1 V at 620 A peak pulse current (IPP) under 10/1000 μs waveform conditions. This value is guaranteed across –55°C to +150°C and ensures protected circuitry remains within safe operating limits during surge events. The MPLAD36KP36AE3 achieves this with sub-100 ps response time and minimal voltage overshoot due to its low-parasitic metal-base construction.
Is MPLAD36KP36AE3 qualified for automotive applications per AEC-Q101?
Yes, the MPLAD36KP36AE3 is fully AEC-Q101 qualified, having passed high-temperature reverse bias, temperature cycling, and humidity bias life testing. It is explicitly listed in Microsemi's AEC-Q101 documentation for unidirectional TVS devices. The MPLAD36KP36AE3 is deployed in engine control units and battery management systems where sustained reliability under thermal and electrical stress is mandatory.
Does MPLAD36KP36AE3 meet RTCA DO-160 Section 22 lightning requirements?
Yes, the MPLAD36KP36AE3 is designed and tested to meet RTCA DO-160 Section 22 multi-stroke lightning standards. It supports ≥500 pulses at full 36 kW rating with no parameter drift. Its low RθJC (1.0 °C/W) and metal-base thermal path enable consistent performance across repeated strokes - a key requirement for aircraft power distribution systems where MPLAD36KP36AE3 is commonly applied.
What is the polarity configuration and cathode identification for MPLAD36KP36AE3?
The MPLAD36KP36AE3 is a unidirectional TVS with cathode located on the metal base (bottom surface) of the PLAD package. The top surface pad is the anode. Polarity marking is not present on the body - orientation is defined by mechanical placement: metal base must be soldered to system ground or heatsink. This configuration ensures optimal thermal transfer and low-inductance current return, directly supporting the MPLAD36KP36AE3's 36 kW surge capability.
Can MPLAD36KP36AE3 be used in bidirectional configurations?
No - the MPLAD36KP36AE3 is unidirectional only. For bidirectional operation, the equivalent part is MPLAD36KP36CA (CA suffix). The 'A' suffix in MPLAD36KP36AE3 explicitly denotes unidirectional construction. Using MPLAD36KP36AE3 in AC-coupled or symmetrical surge environments would result in forward conduction during negative transients and potential failure. Always select MPLAD36KP36CA for bidirectional applications requiring the same 36 V standoff and 36 kW rating.
MPLAD36KP36AE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- Nonstandard SMD
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 620A
- Power - Peak Pulse:
- 36000W (36kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PLAD
MPLAD36KP36AE3 FAQ
1.How can I place an order for MPLAD36KP36AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP36AE3 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 MPLAD36KP36AE3 reliable?
The price and inventory of MPLAD36KP36AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP36AE3 is usually 5 days.
3.What payment methods are accepted for MPLAD36KP36AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP36AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP36AE3?
MPLAD36KP36AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP36AE3 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 MPLAD36KP36AE3?
For technical support, including MPLAD36KP36AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP36AE3 requirements.
6.How does Aetrix verify that MPLAD36KP36AE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP36AE3 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 MPLAD36KP36AE3 meets industry standards.
7.What is the process for return or replacement of MPLAD36KP36AE3?
All MPLAD36KP36AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP36AE3, 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 MPLAD36KP36AE3 part is unused and in its original packaging.
Return procedure for MPLAD36KP36AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP36AE3 Tags
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