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Microchip Technology MAPLAD36KP16AE3
- Part No.:
- MAPLAD36KP16AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP16AE3.pdf
- Description:
- TVS DIODE 16VWM 27.2VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:6,892
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Product details
Overview
MAPLAD36KP16AE3 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, features a 16 V reverse standoff voltage (VWM), clamps to ≤27.2 V at 1324 A peak impulse current, and operates across –55°C to +150°C junction temperature.
For engineers reviewing the MAPLAD36KP16AE3 datasheet, MAPLAD36KP16AE3 pinout, MAPLAD36KP16AE3 application, or MAPLAD36KP16AE3 equivalent, this device is selected for lightning protection per RTCA DO-160 Section 22, load dump suppression, and secondary IEC 61000-4-5 compliance with 42 Ω source impedance up to Class 5.
Technical Context
This TVS diode uses an avalanche breakdown mechanism to clamp transients within nanoseconds, with <100 ps response time from 0 V to V(BR) min. Its low thermal resistance (RθJC = 1.0 °C/W) enables efficient heat transfer to the PCB copper pad or heatsink under repetitive surge conditions.
It meets AEC-Q101 stress testing requirements and supports MIL-PRF-19500 upscreening options. The device is RoHS-compliant (e3 plating), moisture-sensitive Level 1 per J-STD-020B, and rated for 2.5 W steady-state dissipation at 25°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous operating voltage before clamping begins; must exceed system peak DC or AC waveform. |
| V(BR) min/max | 17.8–19.7 V @ 5 mA - Confirmed avalanche onset range; ensures reliable triggering above nominal bus voltage. |
| VC @ IPP | 27.2 V max @ 1324 A - Clamping voltage during full 36 kW surge; defines worst-case overvoltage seen by protected circuitry. |
| IPP | 1324 A - Peak impulse current capability at 10/1000 μs waveform; determines survivability against lightning-induced surges. |
| RθJC | 1.0 °C/W - Junction-to-case thermal resistance; enables direct mounting to heatsink or large copper pour for thermal management. |
| TJ range | –55°C to +150°C - Full operational junction temperature range; validated for avionics and under-hood automotive environments. |
Pinout & Package
MAPLAD36KP16AE3 uses the PLAD surface-mount package: void-free UL94V-0 epoxy body (12.32 × 10.54 × 5.08 mm), tin-plated terminals, cathode on metal base (bottom side). Mounting requires recommended pad layout (A = 11.94 mm, B = 5.85 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top surface) | Transient current entry point (unidirectional) | Connected to line/pin being protected; current flows into anode during positive surge. |
| Cathode (metal base) | Transient current return path | Must be soldered to large copper area or heatsink; serves as primary thermal and electrical return path. |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW peak pulse rating | Enables single-device protection against multi-stroke lightning per RTCA DO-160 Section 22 without cascaded stages. |
| Low RθJC = 1.0 °C/W | Allows >70% of surge energy to dissipate through case-to-heatsink path, reducing PCB trace heating and thermal stress. |
| AEC-Q101 qualified | Validates robustness for automotive powertrain and chassis applications subject to vibration, thermal cycling, and humidity. |
| RoHS-compliant e3 plating | Matte-tin termination ensures compatibility with lead-free reflow profiles and long-term solder joint reliability. |
Applications
| Aircraft Avionics Power Input | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Protection of 28 V DC aircraft bus inputs against lightning-induced surges per RTCA DO-160F Waveform 4 (Level 4) and Waveform 5A (Level 4). IC Role / Device Role / Timing Role: Primary transient voltage suppressor placed at board-level input connector, clamping fast-rising transients before they reach DC-DC converters and microcontrollers. Use Value: Single MAPLAD36KP16AE3 satisfies Level 4 pin-injection requirements up to 300 V VWM variants, eliminating need for external spark gaps or multi-stage filtering. | Use Scenario: Load dump protection on 12 V battery-fed ECU power rail during alternator regulation failure (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: Unidirectional TVS absorbing 100–200 ms, 120 V transients with peak energy exceeding 100 J. Use Value: Withstands 1324 A peak current and maintains clamping below 27.2 V, preventing damage to 3.3 V/5 V logic supplies downstream. |
| Industrial Motor Drive DC Bus | Railway Signaling Interface |
Use Scenario: Surge suppression on 48 V DC bus feeding IGBT gate drivers in variable-frequency drives subjected to switching-induced transients and EFT bursts. IC Role / Device Role / Timing Role: Secondary protection stage after upstream MOVs, handling fast, repetitive transients that bypass bulk clamping. Use Value: Sub-100 ps response ensures clamping before gate driver ICs experience overvoltage stress; low standby current (<450 μA) avoids leakage-related power loss. | Use Scenario: Protection of 24 V signaling lines in railway control cabinets exposed to induced surges from nearby traction currents and lightning coupling. IC Role / Device Role / Timing Role: Bidirectional-capable variant (e.g., MAPLAD36KP16CA) used for differential signal pairs; unidirectional MAPLAD36KP16AE3 applied to power rails. Use Value: Meets IEC 61000-4-5 Class 4 (42 Ω source) with 1324 A rating, ensuring immunity to 4 kV surges without degradation after repeated strikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A | 600 W PPP rating, 10× lower peak power; SMC package, higher RθJA (40 °C/W) | Limited to low-energy ESD/EFT; unsuitable for DO-160 lightning or load dump | Select only for cost-sensitive consumer-grade designs with sub-100 A surge exposure. |
| SMCJ16A | 1500 W PPP rating, same SMC package; clamps at 25.5 V @ 58.3 A - insufficient for multi-kA threats | Acceptable for basic IEC 61000-4-4/5 Class 2–3; fails DO-160 Level 4/5 and ISO 7637-2 Pulse 5 | Use where space constraints prevent PLAD footprint but surge energy remains below 1.5 kJ. |
Compared with SMBJ16A and SMCJ16A, MAPLAD36KP16AE3 provides 24× and 24× higher peak pulse power respectively, enabling single-device compliance with aviation lightning standards and automotive load dump - critical when PCB real estate allows its 12.5 × 10.8 mm footprint.
Availability
MAPLAD36KP16AE3 is available at Aetrix Electronics and suitable for aerospace avionics, automotive powertrain systems, and industrial motor drive designs requiring stable component supply and long-lifecycle support.
Supply support for MAPLAD36KP16AE3 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 MAPLAD36KP16AE3 belongs to Microsemi's high-power PLAD TVS family, engineered specifically for mission-critical surge protection where multi-kilowatt transient energy, thermal robustness, and qualification to RTCA DO-160 and AEC-Q101 are mandatory.
FAQ
What is the clamping voltage of MAPLAD36KP16AE3 under maximum surge conditions?
The MAPLAD36KP16AE3 has a maximum clamping voltage (VC) of 27.2 V at its rated peak impulse current of 1324 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 a full 36 kW surge event. The device maintains this clamping performance across its specified junction temperature range.
Is MAPLAD36KP16AE3 suitable for automotive load dump protection per ISO 7637-2?
Yes, MAPLAD36KP16AE3 is qualified for automotive load dump protection per ISO 7637-2 Pulse 5a. Its 1324 A peak impulse current rating and 27.2 V clamping voltage enable it to safely absorb the high-energy transients generated during alternator regulation failure on 12 V systems. The device's AEC-Q101 qualification further confirms its suitability for under-hood ECU applications.
Does MAPLAD36KP16AE3 require a heatsink for reliable operation?
MAPLAD36KP16AE3 does not require an external heatsink for single-event surge suppression, but thermal management is critical for repetitive surges. Its RθJC of 1.0 °C/W mandates direct soldering of the metal cathode base to a minimum 11.94 mm × 5.85 mm copper pad (per recommended layout) to achieve rated 36 kW performance. For >0.05% duty cycle applications, forced convection or heatsink attachment is advised.
How does the e3 suffix in MAPLAD36KP16AE3 affect assembly?
The e3 suffix in MAPLAD36KP16AE3 indicates RoHS-compliant matte-tin plating, fully compatible with standard lead-free reflow soldering profiles (peak 260°C for 10 s). This finish eliminates concerns about tin whisker growth and ensures solderability per MIL-STD-750 Method 2026, making MAPLAD36KP16AE3 suitable for high-reliability automated assembly without special flux or process adjustments.
Can MAPLAD36KP16AE3 be used in bidirectional configurations?
No - MAPLAD36KP16AE3 is unidirectional only. Its polarity is fixed: cathode on the metal base, anode on the top surface. For bidirectional protection, the functionally equivalent part is MAPLAD36KP16CA (CA suffix denotes bidirectional construction). Using MAPLAD36KP16AE3 in AC or differential signal paths would result in forward conduction during negative transients and potential failure.
MAPLAD36KP16AE3 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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 27.2V
- Current - Peak Pulse (10/1000µs):
- 1324A (1.324kA)
- 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
MAPLAD36KP16AE3 FAQ
1.How can I place an order for MAPLAD36KP16AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP16AE3 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 MAPLAD36KP16AE3 reliable?
The price and inventory of MAPLAD36KP16AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP16AE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP16AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP16AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP16AE3?
MAPLAD36KP16AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP16AE3 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 MAPLAD36KP16AE3?
For technical support, including MAPLAD36KP16AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP16AE3 requirements.
6.How does Aetrix verify that MAPLAD36KP16AE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP16AE3 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 MAPLAD36KP16AE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP16AE3?
All MAPLAD36KP16AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP16AE3, 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 MAPLAD36KP16AE3 part is unused and in its original packaging.
Return procedure for MAPLAD36KP16AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP16AE3 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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