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Microchip Technology MAPLAD36KP64AE3
- Part No.:
- MAPLAD36KP64AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP64AE3.pdf
- Description:
- TVS DIODE 64VWM 103VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:3,081
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Product details
Overview
MAPLAD36KP64AE3 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 64 V reverse standoff voltage (VWM), unidirectional polarity, and clamps to ≤103.0 V at 350 A peak impulse current (IPP). It is widely deployed in aircraft avionics for RTCA DO-160 Section 22 multi-stroke lightning compliance.
For engineers reviewing the MAPLAD36KP64AE3 datasheet, MAPLAD36KP64AE3 pinout, MAPLAD36KP64AE3 application, or MAPLAD36KP64AE3 equivalent, this device is selected for high-energy surge suppression where low thermal resistance (RθJC = 1.0 °C/W), RoHS-compliant e3 plating, and MIL-PRF-19500 upscreening capability are critical - especially in DO-160 Waveform 4/5A pin-injection hardened designs.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode on the metal base (package bottom), enabling direct thermal coupling to heatsinks. Its silicon avalanche structure sustains 36,000 W surges while maintaining <100 ps response time and 10 μA standby current at VWM.
It meets IEC 61000-4-5 (Class 1–5, 2/12/42 Ω source), IEC 61000-4-2/4 ESD/EFT, and RTCA DO-160F Waveform 4 (Level 4–5) and Waveform 5A (Level 4–5) requirements - with derating guidance provided for temperature and repetition rate per MicroNote 132 and 134.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - enables single-device protection against severe lightning-induced transients per DO-160 and IEC 61000-4-5. |
| Reverse Standoff Voltage (VWM) | 64 V - maximum continuous operating voltage before clamping; matches 48 V automotive and 28 V avionics bus systems. |
| Clamping Voltage (VC) | ≤103.0 V @ IPP = 350 A - limits downstream voltage stress during surge events to safe levels for protected ICs. |
| Breakdown Voltage (V(BR)) | 71.1–78.6 V @ 5 mA - defines precise avalanche initiation threshold for predictable clamping onset. |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - allows efficient heat transfer to PCB copper or external heatsink, critical for multi-pulse reliability. |
| Standby Current (ID) | ≤10 μA @ 64 V - ensures negligible leakage in always-on systems without battery drain or signal distortion. |
| RoHS Compliance | e3 marking - matte-tin plating compliant with EU RoHS Directive 2011/65/EU, no lead or hazardous substances. |
Pinout & Package
MAPLAD36KP64AE3 uses a surface-mount PLAD package with metal-base cathode configuration. The metal base serves as the cathode terminal and provides primary thermal path; the top-side anode pad is electrically isolated and soldered to PCB trace.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal Base (Bottom) | Cathode | Primary thermal interface and high-current return path; must be soldered to large copper pour or heatsink. |
| Top Anode Pad | Anode | Signal input node; connects to line under protection; requires controlled-impedance routing for fast transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMT PLAD package | Enables high-power surge protection in space-constrained avionics modules without through-hole mounting or height penalties. |
| 3σ lot norm screening on ID | Ensures consistent low-leakage performance across production lots - critical for battery-backed or low-power sensor interfaces. |
| MIL-PRF-19500 upscreening option | Supports high-reliability qualification (e.g., M, MA, MX levels) for flight-critical subsystems requiring traceable wafer/assembly lots. |
| DO-160F Waveform 4 & 5A compliance | Validated for pin-injection immunity up to Level 5 (Waveform 4: 6.4/69 μs; Waveform 5A: 40/120 μs), essential for aircraft data bus protection. |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and bake-out prior to reflow - reduces manufacturing cost and avoids moisture-related popcorning. |
Applications
| Aircraft Avionics Power Input | Automotive 48 V DC-DC Converter Input |
|---|---|
Use Scenario: Protection of ARINC 429 or AFDX line receivers and power supplies against induced lightning transients on aircraft wingtip or tail-mounted sensors. IC Role / Device Role / Timing Role: Primary clamping element placed directly at connector entry point to shunt >30 kA surge energy before reaching downstream regulators and FPGAs. Use Value: Meets RTCA DO-160 Section 22 multi-stroke lightning standard with verified 36 kW dissipation and <100 ps response - prevents latch-up or burnout in safety-critical flight control electronics. |
Use Scenario: Surge suppression on input stage of bidirectional 48 V/12 V DC-DC converters used in mild-hybrid vehicles during load dump events. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery feed and converter MOSFET gate driver to clamp transients exceeding 64 V standoff. Use Value: Withstands 350 A peak impulse at 103 V clamping and RθJC = 1.0 °C/W, it prevents overvoltage failure during ISO 7637-2 Pulse 5a/b without thermal runaway. |
| Industrial Ethernet Switch PoE Port | Railway Signaling Interface |
Use Scenario: Secondary protection on Power over Ethernet (PoE) data lines subjected to induced surges from nearby traction power systems. IC Role / Device Role / Timing Role: Back-to-back placement with common-mode chokes to suppress differential-mode transients per IEC 61000-4-5 Class 4 (42 Ω source). Use Value: Clamps to ≤103 V within nanoseconds while sustaining 36 kW, preserving PHY IC integrity and maintaining IEEE 802.3af/at compliance under repeated surge stress. |
Use Scenario: Protection of 70 V signaling inputs in European railway interlocking systems exposed to electromagnetic interference from overhead catenary switching. IC Role / Device Role / Timing Role: Unidirectional TVS installed at trackside relay interface to absorb 2 Ω source impedance surges per EN 50121-4 Class 3. Use Value: Validated for IEC 61000-4-5 Class 3 at 2 Ω source (VWM = 64 V → VC ≤ 103 V), ensuring fail-safe operation in safety-integrated circuits (SIL2/SIL3). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Semtech RCLAMP3652P.TCT | Lower PPP (3.6 kW), 6-pin SLP package, bidirectional only, 64 V VWM, 110 V VC @ 30 A. | Designed for high-speed data line ESD (USB, HDMI), not high-energy lightning or load dump. | Select only for board-level ESD near connectors; insufficient for DO-160 or ISO 7637-2 compliance. |
| Littelfuse SP3052-060HDTW | 600 W PPP, SOD-323 package, 64 V VWM, 105 V VC @ 5 A, AEC-Q101 qualified. | Targeted at automotive infotainment ESD protection; lacks multi-kA surge rating or thermal mass for sustained dissipation. | Use for low-energy ESD in non-safety-critical modules; cannot replace MAPLAD36KP64AE3 in primary surge paths. |
Compared with RCLAMP3652P.TCT and SP3052-060HDTW, MAPLAD36KP64AE3 delivers 10× higher peak power handling, metal-base thermal conduction for multi-pulse reliability, and formal DO-160/IEC 61000-4-5 certification - making it uniquely suitable for aerospace-grade primary surge arrest where energy absorption and thermal stability are non-negotiable.
Availability
MAPLAD36KP64AE3 is available at Aetrix Electronics and suitable for aircraft avionics, automotive 48 V power systems, industrial PoE infrastructure, and railway signaling applications requiring stable component supply, long-term lifecycle support, and traceable high-reliability sourcing.
Supply support for MAPLAD36KP64AE3 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, and timing solutions for aerospace, defense, and industrial markets.
The MAPLAD series belongs to Microsemi's high-power transient voltage suppressor product line, engineered specifically for mission-critical surge protection in environments demanding DO-160, IEC 61000-4-5, and AEC-Q101 compliance - with emphasis on thermal robustness and multi-stroke survivability.
FAQ
What is the clamping voltage of MAPLAD36KP64AE3 at its rated peak pulse current?
The MAPLAD36KP64AE3 has a maximum clamping voltage (VC) of 103.0 V when subjected to its rated peak impulse current of 350 A under 10/1000 μs waveform conditions. This value is guaranteed per the datasheet's electrical characteristics table and ensures downstream circuitry remains below destructive voltage thresholds during surge events.
Is MAPLAD36KP64AE3 RoHS compliant, and what does the 'e3' suffix indicate?
Yes, MAPLAD36KP64AE3 is RoHS compliant, as confirmed by the 'e3' suffix in its part number. This denotes annealed matte-tin plating meeting EU Directive 2011/65/EU requirements - free of lead, cadmium, mercury, hexavalent chromium, PBB, and PBDE - and compatible with standard Pb-free reflow profiles.
How is thermal management implemented for MAPLAD36KP64AE3 in high-duty-cycle applications?
MAPLAD36KP64AE3 relies on its metal-base cathode for thermal conduction, with a specified junction-to-case thermal resistance of 1.0 °C/W. Effective thermal management requires soldering the base to a minimum 1.5 cm² copper pour (2 oz Cu) or attaching to an external heatsink; derating curves in Figure 3 guide power reduction above 100°C case temperature.
Does MAPLAD36KP64AE3 meet RTCA DO-160F Section 22 lightning test requirements?
Yes, MAPLAD36KP64AE3 is explicitly validated for RTCA DO-160F Section 22 multi-stroke lightning testing. Its 36 kW peak pulse power rating, sub-100 ps response time, and documented performance across Waveform 4 (6.4/69 μs) and Waveform 5A (40/120 μs) confirm suitability for aircraft-level primary and secondary lightning protection per the standard.
What is the polarity configuration and pin identification for MAPLAD36KP64AE3?
MAPLAD36KP64AE3 is a unidirectional TVS diode with cathode on the metal base (bottom side) and anode on the top-side solder pad. Polarity is marked on unidirectional variants via a polarity symbol on the body; the metal base must be connected to the system ground or low-impedance return path to enable proper clamping operation.
MAPLAD36KP64AE3 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
MAPLAD36KP64AE3 FAQ
1.How can I place an order for MAPLAD36KP64AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP64AE3 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 MAPLAD36KP64AE3 reliable?
The price and inventory of MAPLAD36KP64AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP64AE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP64AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP64AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP64AE3?
MAPLAD36KP64AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP64AE3 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 MAPLAD36KP64AE3?
For technical support, including MAPLAD36KP64AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP64AE3 requirements.
6.How does Aetrix verify that MAPLAD36KP64AE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP64AE3 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 MAPLAD36KP64AE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP64AE3?
All MAPLAD36KP64AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP64AE3, 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 MAPLAD36KP64AE3 part is unused and in its original packaging.
Return procedure for MAPLAD36KP64AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP64AE3 Tags
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