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Microchip Technology MAPLAD36KP16CAE3
- Part No.:
- MAPLAD36KP16CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP16CAE3.pdf
- Description:
- TVS DIODE 16VWM 27.2VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:5,825
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Product details
Overview
MAPLAD36KP16CAE3 from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace, automotive, and industrial 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 pulse current (IPP), and meets RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MAPLAD36KP16CAE3 datasheet, MAPLAD36KP16CAE3 pinout, MAPLAD36KP16CAE3 application, or MAPLAD36KP16CAE3 equivalent, key selection criteria include its bidirectional polarity, 1.0 °C/W junction-to-case thermal resistance, RoHS-compliant e3 plating, IEC 61000-4-5 Class 5 secondary lightning protection capability, and compatibility with FR4 PCB mounting per recommended pad layout.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device during transients, leveraging avalanche breakdown to divert surge energy away from sensitive circuitry. Its metal-base cathode construction enables low thermal resistance (RθJC = 1.0 °C/W) and efficient heat transfer to the PCB ground plane.
It supports both unidirectional and bidirectional configurations - the "CA" suffix confirms bidirectional operation - and is validated for pin-injection protection per RTCA/DO-160F Waveform 4 (Level 4 up to 400 VWM) and Waveform 5A (Level 4 up to 78 VWM), with temperature derating guidance in MicroNote 132.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - sustains aircraft-grade lightning surges without failure |
| Reverse Standoff Voltage (VWM) | 16 V - maximum continuous operating voltage before clamping initiates |
| Breakdown Voltage (V(BR)) | 17.8–19.7 V @ 5 mA - ensures reliable avalanche conduction onset |
| Max Clamping Voltage (VC) | 27.2 V @ 1324 A IPP - limits downstream voltage stress during worst-case surge |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables direct PCB heat sinking for high-repetition-rate transients |
| Moisture Sensitivity Level | Level 1 per J-STD-020B - no dry pack required; simplifies SMT handling and storage |
| RoHS Compliance | e3 marking - matte-tin plating compliant with EU RoHS Directive 2011/65/EU |
Pinout & Package
MAPLAD36KP16CAE3 uses a surface-mount PLAD package with a metal base acting as the cathode terminal for bidirectional operation. The device has two terminals: anode and cathode, with polarity marked only on unidirectional variants; bidirectional versions (CA) are symmetric and non-polarized in circuit placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top metallization) | Surge current entry point during positive transients | Connected to protected line; forms symmetrical clamping path with cathode |
| Cathode (metal base) | Surge current return path and thermal interface | Soldered directly to large copper pour for heat dissipation and low-inductance grounding |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping architecture | Protects AC-coupled or floating signal lines without polarity constraints |
| 3σ lot norm screening on standby current (ID) | Ensures consistent leakage performance across production lots for mission-critical reliability |
| RTCA DO-160F Waveform 4 & 5A compliance | Validated for avionics pin-injection immunity up to Level 4 (400 VWM / 78 VWM respectively) |
| MIL-PRF-19500 upscreening option | Enables high-reliability qualification for defense/aerospace programs requiring extended screening |
| UL94V-0 void-free epoxy body | Prevents internal delamination under thermal cycling and mechanical shock in harsh environments |
Applications
| Aircraft Avionics Power Input | Automotive Load Dump Protection |
|---|---|
Use Scenario: 28 V DC power bus in flight control computers exposed to DO-160 Section 22 lightning-induced surges. IC Role / Device Role / Timing Role: Primary transient suppression device placed at board-level power entry. Use Value: Clamps 36 kW surges within 5 ns while maintaining <27.2 V clamping to protect downstream DC/DC converters and FPGAs. |
Use Scenario: 12 V/24 V battery-fed ECU inputs subjected to ISO 7637-2 Load Dump pulses (up to 120 V, 400 ms). IC Role / Device Role / Timing Role: High-power TVS placed upstream of LDO regulators and CAN transceivers. Use Value: Absorbs 1324 A peak current without degradation, enabling single-device protection instead of stacked TVS arrays. |
| Industrial Motor Drive DC Bus | Railway Signaling Interface |
Use Scenario: 400 V DC link in variable-frequency drives exposed to IEC 61000-4-5 Class 4 surges (2 Ω source impedance). IC Role / Device Role / Timing Role: Secondary surge protector parallel to bulk capacitance on DC bus. Use Value: Withstands repeated 36 kW transients while maintaining <10 μA ID at 16 V, minimizing standby power loss. |
Use Scenario: 72 V signaling lines in European railway interlocking systems requiring EN 50121-3-2 compliance. IC Role / Device Role / Timing Role: Bidirectional TVS on RS-485 differential pairs and sensor inputs. Use Value: Symmetric clamping prevents signal inversion during bipolar transients, preserving data integrity in safety-critical comms. |
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 SMAJ16CA | 600 W PPP rating, SMA package, RθJA = 50 °C/W - lacks metal-base thermal path | Not suitable for >100 Hz surge repetition or DO-160F Level 4/5 validation | Select only for cost-sensitive, low-duty-cycle consumer applications |
| Vishay SM8S16CA | 6600 W PPP, DO-218AB package, 1.5 °C/W RθJC - lower power density and higher clamping (≤28.5 V) | Meets AEC-Q101 but not DO-160F Waveform 4/5A; limited to automotive Tier 2 | Use where aerospace qualification is unnecessary and PCB space allows larger footprint |
Compared with MAPLAD36KP16CAE3, SMAJ16CA offers lower cost but cannot sustain multi-stroke lightning events, while SM8S16CA provides automotive qualification yet falls short of the 36 kW PPP and DO-160F compliance required for flight-critical systems.
Availability
MAPLAD36KP16CAE3 is available at Aetrix Electronics and suitable for aircraft avionics, automotive ECUs, and industrial motor drives requiring stable component supply, long-term lifecycle support, and traceable high-reliability sourcing.
Supply support for MAPLAD36KP16CAE3 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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets, with expertise in radiation-hardened ICs and precision timing solutions.
The MAPLAD36KP16CAE3 belongs to Microsemi's high-power PLAD TVS family, engineered specifically for multi-stroke lightning protection in certified airborne equipment and mission-critical power systems.
FAQ
What does the 'CA' suffix indicate in MAPLAD36KP16CAE3?
The 'CA' suffix in MAPLAD36KP16CAE3 denotes bidirectional construction, meaning the device provides symmetrical clamping for both positive and negative transients without polarity sensitivity. This differs from unidirectional variants (e.g., MAPLAD36KP16AE3), which require correct anode/cathode orientation and clamp only in one direction. Bidirectional operation is essential for AC-coupled interfaces and floating signal lines.
Is MAPLAD36KP16CAE3 qualified to RTCA DO-160F Section 22?
Yes, MAPLAD36KP16CAE3 is validated for RTCA DO-160F Section 22 multi-stroke lightning testing, including Waveform 4 (6.4/69 μs) Level 4 up to 400 VWM and Waveform 5A (40/120 μs) Level 4 up to 78 VWM. Performance is confirmed per MicroNote 132, with temperature derating applied above 25°C ambient to maintain clamping integrity across operational ranges.
What is the thermal interface requirement for MAPLAD36KP16CAE3?
MAPLAD36KP16CAE3 requires direct soldering of its metal base (cathode) to a thermally robust PCB copper pour or heatsink to leverage its 1.0 °C/W junction-to-case thermal resistance. The recommended pad layout (Ref. RF01216) specifies minimum 0.470" × 0.230" (11.94 mm × 5.85 mm) copper area with thermal vias to inner ground planes. Failure to implement this results in thermal runaway under repetitive 36 kW surges.
Does MAPLAD36KP16CAE3 meet IEC 61000-4-5 for industrial surge immunity?
Yes, MAPLAD36KP16CAE3 is rated for IEC 61000-4-5 secondary lightning protection across multiple source impedances: Class 1–5 at 42 Ω (up to 400 VWM), Class 1–4 at 12 Ω (up to 280 VWM), and Class 2–4 at 2 Ω (up to 130 VWM). These ratings are verified per test conditions in the RF01216 datasheet and apply directly to MAPLAD36KP16CAE3 without derating.
What does the 'e3' marking signify on MAPLAD36KP16CAE3?
The 'e3' marking on MAPLAD36KP16CAE3 indicates RoHS-compliant matte-tin plating per JEDEC J-STD-020B, with lead-free termination suitable for Pb-free reflow soldering profiles up to 260°C for 10 seconds. This replaces legacy tin-lead plating and ensures compliance with EU Directive 2011/65/EU while maintaining solderability and wire-bond compatibility.
MAPLAD36KP16CAE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- Nonstandard SMD
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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
MAPLAD36KP16CAE3 FAQ
1.How can I place an order for MAPLAD36KP16CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP16CAE3 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 MAPLAD36KP16CAE3 reliable?
The price and inventory of MAPLAD36KP16CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP16CAE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP16CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP16CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP16CAE3?
MAPLAD36KP16CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP16CAE3 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 MAPLAD36KP16CAE3?
For technical support, including MAPLAD36KP16CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP16CAE3 requirements.
6.How does Aetrix verify that MAPLAD36KP16CAE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP16CAE3 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 MAPLAD36KP16CAE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP16CAE3?
All MAPLAD36KP16CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP16CAE3, 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 MAPLAD36KP16CAE3 part is unused and in its original packaging.
Return procedure for MAPLAD36KP16CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP16CAE3 Tags
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DESD3V3E1BL-7B
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