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Microchip Technology MPLAD36KP64AE3
- Part No.:
- MPLAD36KP64AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP64AE3.pdf
- Description:
- TVS DIODE 64VWM 103VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:8,925
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Product details
Overview
MPLAD36KP64AE3 from Microsemi is a unidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace, automotive, and industrial power systems. It delivers 36 kW peak pulse power at 10/1000 μs, features a 64 V reverse standoff voltage (VWM), clamps to ≤103.0 V at 350 A peak pulse current (IPP), and operates across –55°C to +150°C junction temperature. It is qualified to AEC-Q101 and meets RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MPLAD36KP64AE3 datasheet, MPLAD36KP64AE3 pinout, MPLAD36KP64AE3 application, or MPLAD36KP64AE3 equivalent, this device is selected for primary or secondary lightning protection, load dump suppression, and ESD/EFT hardening where high-power, low-profile SMT TVS performance with traceable reliability is required.
Technical Context
This TVS diode uses silicon avalanche technology to provide fast-response clamping against high-energy transients. Its metal-base package enables low thermal resistance (RθJC = 1.0 °C/W), supporting sustained surge handling when mounted on FR4 with recommended pad layout. The device exhibits <100 ps response time from 0 V to V(BR) min and maintains stable breakdown voltage with αV(BR) = 75 mV/°C.
It is rated for IEC 61000-4-5 (Class 1–5, 2/12/42 Ω source impedance), IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and RTCA DO-160F Waveform 4 & 5A pin injection protection. Standby current ID is ≤10 μA at VWM, and forward clamping voltage VF is 4.0 V at 500 A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - supports aircraft lightning strike energy absorption without failure |
| Reverse Standoff Voltage (VWM) | 64 V - matches nominal 48 V DC bus or 28 V avionics systems with safety margin |
| Clamping Voltage (VC) | ≤103.0 V @ IPP = 350 A - limits downstream voltage stress during worst-case surge |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to PCB copper or heatsink for repeated surges |
| Breakdown Voltage (V(BR)) | 71.1–78.6 V @ 5 mA - ensures reliable turn-on before system overvoltage damage occurs |
| Temperature Range | –55°C to +150°C - certified for under-hood automotive and airborne environmental operation |
| Moisture Sensitivity Level | Level 1 per J-STD-020B - no dry pack or bake required prior to reflow soldering |
Pinout & Package
Package: PLAD (Plastic Low-Profile Anode-Down) - void-free UL94V-0 epoxy body with tin-lead or RoHS-compliant matte-tin plating; cathode is the metal base (bottom side); weight ≈1.7–2.0 g; dimensions: 12.32 × 10.54 × 5.08 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Top Surface Pad) | Input/Line Terminal | Soldered to protected line (e.g., 48 V rail); connects to PCB trace requiring surge current path |
| Cathode (Metal Base) | Ground Reference Terminal | Direct thermal and electrical connection to large copper pour or chassis ground; critical for low-inductance clamping |
Key Features
| Feature | Design Value |
|---|---|
| High-reliability wafer lot traceability | Enables full process traceability for aerospace and defense programs requiring MIL-PRF-19500 upscreening options |
| Surge-tested per unit | Every device verified to withstand ≥1000 A impulse (equipment-limited test), ensuring production consistency |
| Low-profile SMT footprint | 12.32 × 10.54 mm outline fits space-constrained avionics modules and automotive ECUs without height penalty |
| RoHS-compliant (e3) | Meets EU Directive 2011/65/EU; matte-tin plating ensures solderability per MIL-STD-750 Method 2026 |
| RTCA DO-160F Waveform 4 & 5A compliance | Validated for Level 4/5 pin injection immunity in aircraft wiring harnesses - eliminates need for external filtering |
Applications
| Aerospace Power Distribution | Automotive 48 V Systems |
|---|---|
|
Use Scenario: Protection of main distribution bus in regional aircraft against lightning-induced transients per DO-160 Section 22. IC Role / Device Role / Timing Role: Primary-level TVS clamp placed at bus entry point to absorb multi-stroke 36 kW surges. Use Value: Enables compliance with Class 5 lightning testing using single-device solution without parallel stacking or derating. |
Use Scenario: Load dump suppression on 48 V mild-hybrid vehicle battery management system (BMS) input. IC Role / Device Role / Timing Role: Unidirectional TVS shunting alternator-induced spikes (>120 V) within nanoseconds. Use Value: Prevents MOSFET gate oxide rupture and MCU reset by clamping to ≤103 V while surviving 350 A pulses. |
| Industrial Motor Drives | Railway Signaling Interfaces |
|
Use Scenario: Input protection for variable frequency drive (VFD) control board exposed to switching transients from IGBT commutation. IC Role / Device Role / Timing Role: Secondary surge protector downstream of MOVs, absorbing residual high-frequency energy. Use Value: Extends board lifetime by suppressing RFI-induced latch-up and reducing EFT-induced communication errors. |
Use Scenario: Ethernet PHY interface protection in wayside signaling units subjected to induced surges from nearby traction currents. IC Role / Device Role / Timing Role: Bidirectional-capable variant (MPLAD36KP64CA) used for differential pair clamping; this unidirectional version applied to DC bias rails. Use Value: Maintains EN 50121-4 immunity compliance without compromising signal integrity on 100BASE-TX lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A | Lower PPP (600 W), smaller SMB package, higher RθJA (≥50 °C/W), no DO-160 qualification | Suitable for consumer-grade 48 V systems; not rated for aviation multi-stroke or AEC-Q101 | Select when cost and board space outweigh reliability and certification requirements |
| SMCJ64A | Higher PPP (1500 W), larger SMC package, RθJA ~30 °C/W, AEC-Q101 qualified but not DO-160 tested | Used in automotive engine control modules; lacks RTCA/DO-160F waveform validation and 36 kW capability | Choose for ground vehicle ECU designs needing higher surge rating than SMBJ but without aircraft compliance needs |
Compared with SMBJ64A and SMCJ64A, the MPLAD36KP64AE3 provides 24× and 24× higher peak pulse power respectively, validated DO-160F immunity, and metal-base thermal performance essential for mission-critical aerospace and high-reliability industrial deployments.
Availability
MPLAD36KP64AE3 is available at Aetrix Electronics and suitable for aerospace power distribution, automotive 48 V load dump protection, and industrial motor drive surge suppression requiring stable component supply across extended product lifecycles.
Supply support for MPLAD36KP64AE3 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 Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, RF, timing, and power solutions for aerospace, defense, and industrial markets.
The MPLAD36KP64AE3 belongs to Microsemi's PLAD-series high-power TVS family, engineered specifically for certified lightning and load dump protection in safety-critical platforms where thermal robustness and regulatory compliance are non-negotiable.
FAQ
What is the clamping voltage of MPLAD36KP64AE3 at its rated peak pulse current?
The MPLAD36KP64AE3 has a maximum clamping voltage (VC) of 103.0 V when subjected to its rated peak pulse current of 350 A under 10/1000 μs waveform conditions. This value is measured per Figure 3 in the RF01216 datasheet and defines the upper voltage limit imposed on protected circuitry during surge events. The MPLAD36KP64AE3 maintains this clamping performance across its full operating temperature range.
Is MPLAD36KP64AE3 qualified for automotive applications?
Yes, MPLAD36KP64AE3 is AEC-Q101 qualified for stress testing including HTGB, AC/DC life test, and temperature cycling. It is explicitly designed for automotive 48 V systems requiring load dump protection, with validated performance up to 150°C junction temperature. Its unidirectional polarity and 64 V VWM align with 48 V nominal bus architectures, and its 36 kW PPP rating exceeds ISO 7637-2 Pulse 5a requirements.
Does MPLAD36KP64AE3 require special PCB layout considerations?
Yes - the MPLAD36KP64AE3 requires a dedicated thermal pad layout per the manufacturer's recommended footprint (Ref: RF01216, Page 6). The metal cathode base must connect to a minimum 250 mm² copper pour for effective heat dissipation. Trace inductance must be minimized: anode and cathode traces should be short, wide, and symmetric. Avoid vias under the device body; use multiple thermal vias only outside the active area to prevent solder wicking.
How does MPLAD36KP64AE3 differ from bidirectional versions like MPLAD36KP64CA?
The MPLAD36KP64AE3 is unidirectional, meaning it conducts only during reverse-biased overvoltage events and blocks forward current - ideal for DC bus protection. In contrast, MPLAD36KP64CA is bidirectional and symmetrical, protecting AC or differential signals. Key differences include polarity marking (cathode-only on MPLAD36KP64AE3), clamping behavior under positive/negative transients, and application scope: MPLAD36KP64AE3 is used on grounded-rail DC systems, while MPLAD36KP64CA suits telecom or data line protection.
What certifications and standards does MPLAD36KP64AE3 meet?
MPLAD36KP64AE3 meets RTCA DO-160F Section 22 (lightning-induced transient susceptibility), IEC 61000-4-2 (±8 kV contact/±15 kV air ESD), IEC 61000-4-4 (±2 kV EFT), and IEC 61000-4-5 (Class 1–5, 2/12/42 Ω source impedance). It is also AEC-Q101 qualified, RoHS compliant (e3), and moisture sensitivity Level 1. These certifications are verified per Microsemi's test reports and documented in RF01216 Rev B.
MPLAD36KP64AE3 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):
- 64V
- Voltage - Breakdown (Min):
- 71.1V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 350A
- 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
MPLAD36KP64AE3 FAQ
1.How can I place an order for MPLAD36KP64AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP64AE3 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 MPLAD36KP64AE3 reliable?
The price and inventory of MPLAD36KP64AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP64AE3 is usually 5 days.
3.What payment methods are accepted for MPLAD36KP64AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP64AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP64AE3?
MPLAD36KP64AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP64AE3 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 MPLAD36KP64AE3?
For technical support, including MPLAD36KP64AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP64AE3 requirements.
6.How does Aetrix verify that MPLAD36KP64AE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP64AE3 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 MPLAD36KP64AE3 meets industry standards.
7.What is the process for return or replacement of MPLAD36KP64AE3?
All MPLAD36KP64AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP64AE3, 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 MPLAD36KP64AE3 part is unused and in its original packaging.
Return procedure for MPLAD36KP64AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP64AE3 Tags
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