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Microchip Technology MAPLAD36KP100A
- Part No.:
- MAPLAD36KP100A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP100A.pdf
- Description:
- TVS DIODE 100VWM 162VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:2,989
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Product details
Overview
MAPLAD36KP100A from Microsemi is a unidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace and automotive systems. It delivers 36 kW peak pulse power at 10/1000 μs, clamps at ≤162 V under 223 A peak impulse current, and features 100 V reverse standoff voltage with 111–123 V breakdown range. It is qualified to AEC-Q101 and meets RTCA DO-160F Waveform 4 Level 4 and IEC 61000-4-5 Class 1–4 lightning standards.
For engineers reviewing the MAPLAD36KP100A datasheet, MAPLAD36KP100A pinout, MAPLAD36KP100A application, or MAPLAD36KP100A equivalent, key selection criteria include its 100 V VWM rating, metal-base cathode thermal path, 1.0 °C/W junction-to-case thermal resistance, and compliance with secondary lightning protection requirements for avionics and 12/24 V vehicle electronics.
Technical Context
The MAPLAD36KP100A employs an avalanche diode structure optimized for low clamping ratio and fast response (<100 ps rise time), enabling effective suppression of fast-rising transients such as ESD, EFT, and induced RFI. Its thermally enhanced PLAD package places the cathode on the metal base for direct heat sinking, supporting stable multi-stroke operation under RTCA DO-160 Section 22 test conditions.
It operates across –55°C to +150°C junction temperature, with 10 μA maximum standby current at 100 V, and is rated for 42 Ω and 12 Ω source impedance IEC 61000-4-5 Class 1–4 applications. The device is RoHS-compliant (e3 plating), moisture-sensitive Level 1, and supports upscreening per MIL-PRF-19500.
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 surges in aircraft and heavy-duty vehicles |
| Reverse Standoff Voltage (VWM) | 100 V - matches nominal 100 V DC bus or 28 V/115 VAC-derived rail with safety margin for transient headroom |
| Breakdown Voltage (V(BR)) | 111–123 V @ 5 mA - ensures reliable avalanche conduction onset above operating voltage without premature leakage |
| Max Clamping Voltage (VC) | 162 V @ 223 A - limits downstream IC stress to safe levels during 10/1000 μs surges |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - allows efficient heat transfer to PCB copper or external heatsink, critical for repeated surge duty |
| Standby Current (ID) | ≤10 μA @ 100 V - minimizes quiescent power loss in always-on avionics and control modules |
| Operating Temperature Range | –55°C to +150°C - supports deployment in engine bays, flight control units, and other extreme-environment locations |
Pinout & Package
MAPLAD36KP100A uses the PLAD surface-mount package: void-free UL94V-0 epoxy body (12.32 × 10.54 × 5.33 mm), tin-plated terminals, and metal base acting as cathode terminal. Thermal performance relies on mounting the metal base directly to a large copper pour or heatsink.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal Base (Bottom Surface) | Cathode | Primary current return path and thermal conduction interface - must be soldered to ≥100 mm² copper area for rated PPP |
| Top Anode Pad | Anode | Signal-side connection point - routed with minimal trace inductance to protect sensitive inputs or power rails |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMT PLAD package | Enables high-power TVS integration in space-constrained avionics modules without through-hole mounting or added height |
| RTCA DO-160F Waveform 4 Level 4 compliance | Validated for 6.4/69 μs pin-injection transients at 100 V VWM - essential for commercial aircraft data bus and sensor interface protection |
| AEC-Q101 qualification | Confirms robustness for automotive load-dump and alternator-switching events in 24 V systems including ADAS ECUs |
| IEC 61000-4-5 Class 1–4 support (42 Ω & 12 Ω) | Meets secondary lightning immunity requirements for industrial control cabinets and ground-support equipment |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints - simplifies SMT assembly logistics and inventory management |
Applications
| Avionics Sensor Interface Protection | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Protecting ARINC 429 receivers and analog pressure/temperature sensor inputs in flight management systems from induced transients during lightning strikes. IC Role / Device Role / Timing Role: Primary clamping device placed at connector entry point to limit voltage seen by downstream op-amps and ADCs. Use Value: Clamps to ≤162 V within <100 ps, preserving signal integrity and preventing latch-up in 3.3 V/5 V interface ICs during DO-160 Section 22 multi-stroke testing. | Use Scenario: Safeguarding microcontroller I/O and CAN transceiver power rails against 12 V battery load dump and alternator ripple in diesel engine control units. IC Role / Device Role / Timing Role: High-energy shunt element mounted directly at ECU power input, absorbing >300 J per event without degradation. Use Value: Withstands 223 A peak current and maintains <10 μA leakage at 100 V, ensuring long-term reliability in harsh under-hood environments. |
| Industrial Motor Drive Control Board | Railway Signaling Power Supply |
Use Scenario: Shielding gate drivers and isolated feedback circuits in variable-frequency drives from switching-induced voltage spikes and ground bounce. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp on DC bus monitoring lines and auxiliary 24 V control rails. Use Value: 1.0 °C/W RθJC enables sustained operation at 0.05% duty cycle - critical for repetitive surge events in factory automation settings. | Use Scenario: Providing secondary lightning protection on 110 V DC signaling power inputs for trackside interlocking systems compliant with EN 50121-4. IC Role / Device Role / Timing Role: Final-stage TVS on power entry board, coordinated with upstream MOVs and gas discharge tubes. Use Value: Validated for IEC 61000-4-5 Class 4 with 42 Ω source impedance - ensures system-level immunity without derating penalties. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A | 600 W PPP rating, SMA package, 1.5x higher RθJA (15 °C/W), no DO-160 qualification | Limited to consumer-grade or non-safety-critical industrial use; insufficient for aviation multi-stroke requirements | Select only for cost-sensitive, low-energy applications where 36 kW capability is unnecessary |
| SMCJ100A | 1500 W PPP, SMC package, 5.5 °C/W RθJC, AEC-Q101 qualified but not DO-160 tested | Suitable for automotive ECU protection but lacks RTCA/DO-160F Waveform 4 validation required for certified avionics | Use when full 36 kW rating is not needed and DO-160 compliance is not mandated |
Compared with SMBJ100A and SMCJ100A, the MAPLAD36KP100A delivers 24× and 24× higher peak pulse power respectively, integrates a metal-base thermal path for direct heatsinking, and is the only one validated for RTCA DO-160F Waveform 4 Level 4 - making it uniquely suited for certified airborne equipment.
Availability
MAPLAD36KP100A is available at Aetrix Electronics and suitable for avionics certification programs, automotive ECU production, and industrial motor drive designs requiring stable component supply with long lifecycle assurance.
Supply support for MAPLAD36KP100A 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-tolerant components for aerospace, defense, and industrial markets.
The MAPLAD36KP100A belongs to Microsemi's high-power PLAD TVS family, engineered specifically for mission-critical surge protection in environments demanding DO-160, AEC-Q101, and IEC 61000-4-5 compliance.
FAQ
What is the clamping voltage of the MAPLAD36KP100A at its rated peak pulse current?
The MAPLAD36KP100A has a maximum clamping voltage (VC) of 162 V at 223 A peak pulse current under 10/1000 μs waveform conditions. This value is measured per JEDEC standards and guarantees predictable overvoltage limiting for downstream circuitry during surge events, directly supporting design margin calculations for protected ICs.
Is the MAPLAD36KP100A qualified for automotive applications?
Yes, the MAPLAD36KP100A is AEC-Q101 qualified and rated for automotive load dump and alternator switching transients. Its 100 V VWM, 162 V clamping, and –55°C to +150°C operating range make it suitable for engine control units, battery management systems, and ADAS domain controllers where high-energy transient immunity is required.
Does the MAPLAD36KP100A meet RTCA DO-160 lightning protection requirements?
Yes, the MAPLAD36KP100A is validated for RTCA DO-160F Section 22 multi-stroke lightning testing, specifically Waveform 4 (6.4/69 μs) Level 4. Its 36 kW PPP rating and low clamping ratio ensure compliance with aircraft-level secondary lightning protection mandates for sensor interfaces and data buses.
How should the metal base of the MAPLAD36KP100A be mounted for optimal thermal performance?
The metal base of the MAPLAD36KP100A must be soldered to a minimum 100 mm² copper area on the PCB, ideally connected to an internal ground plane or external heatsink. Per the datasheet pad layout, this ensures the specified 1.0 °C/W junction-to-case thermal resistance is achieved, enabling full 36 kW pulse handling without thermal runaway.
What is the polarity configuration of the MAPLAD36KP100A?
The MAPLAD36KP100A is a unidirectional TVS diode, with the cathode located on the metal base (bottom surface) and the anode on the top pad. Polarity marking is absent on the body per standard PLAD construction, so orientation must be verified using schematic symbol alignment and PCB silkscreen during layout.
MAPLAD36KP100A 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):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 162V
- Current - Peak Pulse (10/1000µs):
- 223A
- 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
MAPLAD36KP100A FAQ
1.How can I place an order for MAPLAD36KP100A through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP100A 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 MAPLAD36KP100A reliable?
The price and inventory of MAPLAD36KP100A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP100A is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP100A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP100A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP100A?
MAPLAD36KP100A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP100A 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 MAPLAD36KP100A?
For technical support, including MAPLAD36KP100A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP100A requirements.
6.How does Aetrix verify that MAPLAD36KP100A is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP100A 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 MAPLAD36KP100A meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP100A?
All MAPLAD36KP100A units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP100A, 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 MAPLAD36KP100A part is unused and in its original packaging.
Return procedure for MAPLAD36KP100A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP100A Tags
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