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Microchip Technology MAPLAD36KP180CAE3
- Part No.:
- MAPLAD36KP180CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP180CAE3.pdf
- Description:
- TVS DIODE 180VWM 291VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:4,345
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Product details
Overview
MAPLAD36KP180CAE3 from Microsemi is a bidirectional 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 transients to ≤291 V at 124 A peak pulse current, and features 180 V reverse standoff voltage (VWM) with ±5% breakdown voltage tolerance (200–221 V). It is qualified to AEC-Q101 and meets RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MAPLAD36KP180CAE3 datasheet, MAPLAD36KP180CAE3 pinout, MAPLAD36KP180CAE3 application, or MAPLAD36KP180CAE3 equivalent, key selection criteria include bidirectional clamping capability, IEC 61000-4-5 Class 4/5 secondary lightning compliance (with 2–42 Ω source impedance), RTCA/DO-160F Waveform 4 Level 4/5 pin injection performance, and thermal resistance of 1.0 °C/W junction-to-case.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device during transient events, leveraging avalanche breakdown to divert surge current away from protected circuitry. Its bidirectional construction enables symmetrical clamping for AC-coupled or floating signal lines, and its low RθJC (1.0 °C/W) supports high-repetition-rate surges when mounted on a heatsink per specification.
The device is characterized for operation across –55 °C to +150 °C junction temperature, with standby leakage current ≤10 μA at 180 V VWM, and exhibits a temperature coefficient of breakdown voltage (αVBR) of +219 mV/°C - enabling predictable derating in elevated ambient environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - sustains single-stroke lightning-level energy without failure |
| Reverse Standoff Voltage (VWM) | 180 V - maximum continuous operating voltage before clamping initiates |
| Breakdown Voltage (VBR) | 200–221 V @ 5 mA - tight tolerance ensures consistent turn-on threshold |
| Max Clamping Voltage (VC) | 291 V @ 124 A IPP - defines worst-case voltage seen by downstream circuitry |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables effective heat transfer to PCB copper or external heatsink |
| Surge Current Rating (IPP) | 124 A @ 10/1000 μs - quantifies maximum transient current it can safely shunt |
| Temperature Coefficient (αVBR) | +219 mV/°C - allows accurate clamping voltage prediction across operating temperature range |
Pinout & Package
MAPLAD36KP180CAE3 uses a thermally optimized surface-mount PLAD package with metal base cathode contact (bidirectional symmetry eliminates anode/cathode polarity distinction). The package features void-free UL94V-0 epoxy body, matte-tin RoHS-compliant plating (e3), and weighs 1.7–2.0 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (Metal Base) | Common Surge Return Path | Bidirectional conduction path - serves as shared connection point for both polarities; requires low-impedance thermal and electrical connection to ground plane or heatsink |
| Terminal 2 (Top Surface Pad) | Signal Line Interface | Connects to protected line (e.g., aircraft avionics bus, automotive CAN FD line); symmetric layout permits placement without orientation constraints |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping architecture | Enables protection of AC-coupled, differential, or floating interfaces without polarity sensitivity - critical for MIL-STD-1553, ARINC 429, and Ethernet PHY lines |
| AEC-Q101 qualification & lot traceability | Validates reliability for automotive under-hood applications and supports full wafer/assembly lot tracking for aerospace configuration control |
| RTCA DO-160F Section 22 compliance | Meets multi-stroke lightning immunity requirements for commercial aircraft systems - verified up to Level 5 for Waveform 4 (6.4/69 μs) |
| IEC 61000-4-5 Class 4/5 support (2–42 Ω ZS) | Provides design margin for secondary lightning protection across diverse source impedances encountered in airframe wiring harnesses |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life restrictions - simplifies SMT assembly logistics and reduces handling overhead |
Applications
| Aerospace Avionics Bus Protection | Automotive Load Dump Suppression |
|---|---|
|
Use Scenario: Protecting ARINC 429 data buses and MIL-STD-1553 stubs from induced lightning transients in commercial aircraft fuselage wiring. IC Role / Device Role / Timing Role: Bidirectional TVS diode placed at bus interface connector to clamp common-mode surges before entering line receiver ICs. Use Value: Maintains signal integrity under RTCA DO-160F Section 22 Level 5 waveforms while limiting clamped voltage to ≤291 V - below absolute maximum ratings of protected transceivers. |
Use Scenario: Safeguarding 12 V/24 V automotive ECUs against ISO 7637-2 load dump spikes (up to 120 V, 400 ms) and coupled transients. IC Role / Device Role / Timing Role: Primary surge suppression element located at ECU power input, upstream of DC-DC converters and LDOs. Use Value: Absorbs 36 kW peak energy without degradation, enabling robust protection without series fusing or active crowbar circuits - reducing BOM count and board space. |
| Industrial Ethernet PHY Interface | Railway Signaling Line Protection |
|
Use Scenario: Shielding Gigabit Ethernet PHYs (e.g., Marvell Alaska, Broadcom BCM54616) from EFT and ESD in factory automation gateways. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential pairs (TX+/TX−, RX+/RX−) to suppress common-mode surges while preserving signal rise/fall times. Use Value: Sub-100 ps response time and low capacitance (<100 pF typical) prevent signal distortion at 1000BASE-T speeds - validated per IEC 61000-4-4 (4 kV EFT). |
Use Scenario: Securing track-side signaling relays and axle counter interfaces against traction return current surges and lightning-induced ground potential rise. IC Role / Device Role / Timing Role: High-energy clamping device installed between signaling line and rail-ground reference to limit voltage excursion during 10/1000 μs surges. Use Value: Withstands repeated 36 kW impulses at 0.05% duty factor - demonstrated in EN 50121-4 testing for railway electromagnetic compatibility compliance. |
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 SP3052-030 | 300 W PPP rating, 30 V VWM, SOD-323 package - lower power, smaller footprint | Targeted at low-energy ESD/EFT on USB, I²C, or GPIO; insufficient for lightning or load dump | Select only for sub-1 kW surge environments where board space is constrained and thermal mass is limited |
| Vishay SMAJ180CA | 400 W PPP rating, 180 V VWM, SMA package - same VWM but 90× lower peak power | Applicable for basic IEC 61000-4-2/4-4 protection; fails under DO-160F Section 22 or ISO 7637-2 load dump | Use only where cost is primary constraint and surge energy remains below 500 W - not suitable for aerospace or heavy-duty automotive |
Compared with SP3052-030 and SMAJ180CA, MAPLAD36KP180CAE3 provides 90× higher peak pulse power and certified multi-stroke lightning resilience - making it the sole option among the three qualified for RTCA DO-160F Level 5 and ISO 7637-2 Class D load dump compliance.
Availability
MAPLAD36KP180CAE3 is available at Aetrix Electronics and suitable for aerospace avionics, automotive powertrain ECUs, industrial Ethernet gateways, and railway signaling systems requiring stable component supply across extended product lifecycles.
Supply support for MAPLAD36KP180CAE3 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-hardened components for aerospace, defense, and industrial markets.
The MAPLAD36KP180CAE3 belongs to Microsemi's high-power PLAD-series TVS family, engineered specifically for mission-critical surge protection in environments demanding multi-stroke lightning resilience, AEC-Q101 reliability, and DO-160F certification.
FAQ
What is the clamping voltage of MAPLAD36KP180CAE3 at its rated peak pulse current?
The MAPLAD36KP180CAE3 exhibits a maximum clamping voltage (VC) of 291 V when subjected to its rated peak pulse current of 124 A under 10/1000 μs waveform conditions. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events. The clamping behavior is bidirectional and symmetric, ensuring consistent protection regardless of transient polarity.
Is MAPLAD36KP180CAE3 compliant with RoHS and halogen-free standards?
Yes, MAPLAD36KP180CAE3 carries the "e3" suffix, indicating full compliance with RoHS Directive 2011/65/EU and halogen-free requirements per IPC-4101D. The device uses annealed matte-tin plating on terminals and void-free UL94V-0 thermosetting epoxy encapsulation - both verified through material declarations and third-party testing reports issued by Microsemi.
Does MAPLAD36KP180CAE3 require heatsinking for reliable operation?
MAPLAD36KP180CAE3 has a junction-to-case thermal resistance of 1.0 °C/W, meaning effective heatsinking is essential for repetitive surge duty cycles. When mounted on FR4 with recommended pad layout, its junction temperature rise is manageable for single-event protection; however, for ≥0.05% duty factor applications (e.g., frequent lightning strikes), direct thermal coupling to a metal chassis or dedicated copper pour is required to maintain TJ ≤150 °C.
Can MAPLAD36KP180CAE3 be used in place of unidirectional TVS diodes like MPLAD36KP180A?
No - MAPLAD36KP180CAE3 is strictly bidirectional and lacks polarity marking; substituting it for unidirectional devices such as MPLAD36KP180A may compromise protection in DC-biased circuits where forward conduction must be blocked. Its bidirectional symmetry suits AC-coupled or floating lines only; for DC power rails, the unidirectional variant with cathode-defined orientation remains necessary.
What certifications does MAPLAD36KP180CAE3 hold for aerospace applications?
MAPLAD36KP180CAE3 is qualified to AEC-Q101 and tested per RTCA DO-160F Section 22 for multi-stroke lightning immunity (Level 4/5 for Waveform 4 and 5A). It also meets IEC 61000-4-5 Class 4/5 secondary lightning protection requirements with 2–42 Ω source impedance, and supports optional MIL-PRF-19500 upscreening for high-reliability aerospace deployments.
MAPLAD36KP180CAE3 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):
- 180V
- Voltage - Breakdown (Min):
- 200V
- Voltage - Clamping (Max) @ Ipp:
- 291V
- Current - Peak Pulse (10/1000µs):
- 124A
- 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
MAPLAD36KP180CAE3 FAQ
1.How can I place an order for MAPLAD36KP180CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP180CAE3 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 MAPLAD36KP180CAE3 reliable?
The price and inventory of MAPLAD36KP180CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP180CAE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP180CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP180CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP180CAE3?
MAPLAD36KP180CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP180CAE3 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 MAPLAD36KP180CAE3?
For technical support, including MAPLAD36KP180CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP180CAE3 requirements.
6.How does Aetrix verify that MAPLAD36KP180CAE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP180CAE3 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 MAPLAD36KP180CAE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP180CAE3?
All MAPLAD36KP180CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP180CAE3, 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 MAPLAD36KP180CAE3 part is unused and in its original packaging.
Return procedure for MAPLAD36KP180CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP180CAE3 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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