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Microchip Technology MAPLAD36KP200CA
- Part No.:
- MAPLAD36KP200CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP200CA.pdf
- Description:
- TVS DIODE 200VWM 322VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:6,937
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Product details
Overview
MAPLAD36KP200CA from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace, automotive, and industrial power systems. It delivers 36 kW peak pulse power at 10/1000 μs, features a 200 V reverse standoff voltage (VWM), clamps to ≤322 V at 112 A peak pulse current (IPP), and meets RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MAPLAD36KP200CA datasheet, MAPLAD36KP200CA pinout, MAPLAD36KP200CA application, or MAPLAD36KP200CA equivalent, key selection criteria include bidirectional polarity, 200 V working voltage rating, 322 V maximum clamping voltage at rated IPP, thermal resistance of 1.0 °C/W junction-to-case, and compliance with IEC 61000-4-5 (Class 4, 12 Ω source) and RTCA DO-160F Waveform 4 Level 4.
Technical Context
This device operates as a silicon avalanche diode-based TVS, leveraging controlled breakdown behavior to clamp transients within nanoseconds. Its bidirectional construction enables symmetrical clamping for AC-coupled or floating signal/power lines, and its low RθJC (1.0 °C/W) supports direct mounting to heatsinks for sustained multi-pulse operation.
The MAPLAD36KP200CA is characterized for 10/1000 μs waveform testing per IEC 61000-4-5 and RTCA DO-160F, with verified clamping performance up to 322 V at 112 A IPP. It achieves <5 ns response time and supports secondary lightning protection across Class 1–4 under 12 Ω and 42 Ω source impedances per IEC 61000-4-5.
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) | 200 V - maximum continuous DC or peak AC voltage before conduction begins |
| Breakdown Voltage (V(BR)) | 222–245 V @ 5 mA - ensures reliable turn-on margin above VWM |
| Max Clamping Voltage (VC) | 322 V @ 112 A IPP - limits protected circuit voltage during worst-case surge |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to external heatsink for repeated surges |
| Surge Current Rating (IPP) | 112 A @ 10/1000 μs - validated per IEC 61000-4-5 and RTCA DO-160F Waveform 4 |
| Temperature Coefficient (αV(BR)) | 243 mV/°C - quantifies V(BR) drift over operating range (−55°C to +150°C) |
Pinout & Package
MAPLAD36KP200CA uses a thermally optimized surface-mount PLAD package with metal base cathode contact (bidirectional symmetry eliminates anode/cathode distinction). The metal base serves as both thermal path and electrical terminal; no discrete pins exist - terminals are the top metallized surface and bottom metal base.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Top Metallized Surface | Anode/Cathode (bidirectional) | Provides symmetrical conduction path; connects to protected line or node |
| Bottom Metal Base | Common Terminal / Thermal Path | Serves as second terminal and primary heat sink interface; must be soldered to copper pour |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC signals, differential buses, or floating power rails without polarity concerns |
| 36 kW peak pulse rating | Meets RTCA DO-160 Section 22 multi-stroke lightning for commercial aircraft avionics |
| 1.0 °C/W RθJC | Supports >100 pulses at 0.05% duty cycle when mounted on FR4 with recommended pad layout |
| IEC 61000-4-5 Class 4 compliance (12 Ω source) | Validated for industrial equipment surge immunity up to 4 kV test level |
| RoHS-compliant e3 plating | Matte-tin terminations ensure reliable solderability per MIL-STD-750 Method 2026 |
Applications
| Aerospace Avionics Power Input | Automotive DC Bus Protection |
|---|---|
|
Use Scenario: Primary DC input protection for flight control computers and inertial navigation units exposed to lightning-induced transients per RTCA DO-160F Section 22. IC Role / Device Role / Timing Role: Bidirectional TVS acting as first-line voltage clamp on 28 V aircraft bus inputs. Use Value: Limits transient voltage to ≤322 V during 10/1000 μs surges, preserving downstream DC/DC converters and FPGA power rails. |
Use Scenario: Load dump suppression on 24 V heavy-duty vehicle battery-fed ECUs handling alternator transients up to 120 V. IC Role / Device Role / Timing Role: High-power TVS placed at ECU main power entry point to absorb ISO 7637-2 Pulse 5a energy. Use Value: Withstands 112 A peak current and dissipates 36 kW, preventing latch-up or burnout in microcontroller power domains. |
| Industrial Motor Drive DC Link | Railway Signaling Interface |
|
Use Scenario: Secondary surge protection on 200 V DC link of variable-frequency drives subjected to switching-induced transients and coupling from nearby arcs. IC Role / Device Role / Timing Role: Clamp device bridging DC+ and DC− rails to suppress common-mode surges exceeding 200 V standoff. Use Value: 200 V VWM matches nominal DC link; 322 V clamping prevents IGBT gate driver overvoltage during fast-rising transients. |
Use Scenario: Protection of 200 V signaling lines in European railway interlocking systems requiring EN 50121-4 Class 4 immunity. IC Role / Device Role / Timing Role: Bidirectional TVS on track circuit or axle counter communication pairs exposed to traction return current surges. Use Value: Validated for IEC 61000-4-5 Class 4 (12 Ω source), ensuring survivability against 4 kV surges without degradation over 1000 cycles. |
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 SMAJ200CA | Lower PPP (400 W), smaller SMC package, 322 V VC @ 1.25 A IPP | Only suitable for low-energy transients (e.g., ESD/EFT); not rated for lightning or load dump | Select MAPLAD36KP200CA when 36 kW surge handling and RTCA DO-160 compliance are required. |
| Vishay V200CH8 | Same 200 V VWM and bidirectional polarity, but 5 kW PPP rating and TO-262 package | Limited to single-stroke events; lacks multi-pulse thermal capability and DO-160 qualification | Choose MAPLAD36KP200CA for aerospace or high-reliability multi-stroke environments where thermal robustness is critical. |
Compared with SMAJ200CA and V200CH8, the MAPLAD36KP200CA provides 9× higher peak power handling, validated multi-stroke endurance, and explicit RTCA DO-160F Section 22 qualification - making it uniquely suited for mission-critical airborne and industrial power rail protection where single-event failure is unacceptable.
Availability
MAPLAD36KP200CA is available at Aetrix Electronics and suitable for aerospace avionics, automotive ECU power inputs, and industrial motor drive DC links requiring stable component supply, long-term lifecycle support, and traceable high-reliability sourcing.
Supply support for MAPLAD36KP200CA 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 MAPLAD36KP200CA belongs to Microsemi's PLAD-series high-power TVS family, engineered specifically for multi-stroke lightning protection and high-energy automotive load dump in safety-critical systems.
FAQ
What is the clamping voltage of MAPLAD36KP200CA at its rated peak pulse current?
The MAPLAD36KP200CA has a maximum clamping voltage (VC) of 322 V at 112 A peak pulse current (IPP) under 10/1000 μs waveform conditions. This value is measured per IEC 61000-4-5 and is guaranteed across temperature and production lots. The clamping performance ensures protected circuits remain below critical voltage thresholds during high-energy transients.
Is MAPLAD36KP200CA certified for RTCA DO-160F lightning testing?
Yes, the MAPLAD36KP200CA is explicitly qualified for RTCA DO-160F Section 22 multi-stroke lightning testing. It meets Level 4 for Waveform 4 (6.4/69 μs) and is validated for repeated surge application - a requirement for commercial aircraft avionics power inputs. Documentation is provided in Microsemi Application Note RF01216 Rev B.
How does the thermal design of MAPLAD36KP200CA support repeated surge events?
The MAPLAD36KP200CA achieves a junction-to-case thermal resistance of 1.0 °C/W, enabling rapid heat transfer to an external heatsink or PCB copper pour. When mounted per the recommended pad layout on FR4, it supports >100 pulses at 0.05% duty factor - essential for applications like aircraft ground power surges or industrial motor drive commutation noise.
What is the meaning of the 'CA' suffix in MAPLAD36KP200CA?
The 'CA' suffix in MAPLAD36KP200CA denotes bidirectional construction. Unlike unidirectional variants (e.g., MAPLAD36KP200A), the CA version provides symmetrical clamping for both polarities - ideal for AC-coupled interfaces, differential data lines, or floating power domains where voltage reversal may occur during transients.
Does MAPLAD36KP200CA require derating at elevated ambient temperatures?
Yes, MAPLAD36KP200CA requires thermal derating above 25°C ambient. Its steady-state power dissipation drops from 2.5 W at TA = 25°C to 71 W at TC = 100°C (case temperature), and peak pulse power must be reduced per the derating curve in Figure 3 of RF01216. Designers must reference MicroNote 134 for combined steady-state and pulse power derating rules.
MAPLAD36KP200CA 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):
- 200V
- Voltage - Breakdown (Min):
- 222V
- Voltage - Clamping (Max) @ Ipp:
- 322V
- Current - Peak Pulse (10/1000µs):
- 112A
- 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
MAPLAD36KP200CA FAQ
1.How can I place an order for MAPLAD36KP200CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP200CA 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 MAPLAD36KP200CA reliable?
The price and inventory of MAPLAD36KP200CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP200CA is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP200CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP200CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP200CA?
MAPLAD36KP200CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP200CA 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 MAPLAD36KP200CA?
For technical support, including MAPLAD36KP200CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP200CA requirements.
6.How does Aetrix verify that MAPLAD36KP200CA is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP200CA 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 MAPLAD36KP200CA meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP200CA?
All MAPLAD36KP200CA units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP200CA, 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 MAPLAD36KP200CA part is unused and in its original packaging.
Return procedure for MAPLAD36KP200CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP200CA Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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Diodes Incorporated
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