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Microchip Technology MAPLAD36KP220CAE3
- Part No.:
- MAPLAD36KP220CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP220CAE3.pdf
- Description:
- TVS DIODE 220VWM 356VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:2,767
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Product details
Overview
MAPLAD36KP220CAE3 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 ≤356 V at 990 A, and operates with 220 V reverse standoff voltage (VWM), meeting RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MAPLAD36KP220CAE3 datasheet, MAPLAD36KP220CAE3 pinout, MAPLAD36KP220CAE3 application, or MAPLAD36KP220CAE3 equivalent, key selection criteria include bidirectional polarity, 220 V working voltage, 356 V maximum clamping voltage at 990 A, thermal resistance of 1.0 °C/W junction-to-case, and compliance with IEC 61000-4-5 (Class 3–5) and RTCA DO-160F Waveform 4 Level 4.
Technical Context
This TVS diode uses silicon avalanche technology to provide fast-response clamping (<5 ns response time) against high-energy transients. Its void-free thermosetting epoxy package enables low thermal resistance (RθJC = 1.0 °C/W) and stable operation up to +150 °C junction temperature.
It supports secondary lightning protection per IEC 61000-4-5 with 2 Ω, 12 Ω, and 42 Ω source impedances, and meets pin-injection immunity per RTCA DO-160F Waveform 4 (Level 4) and Waveform 5A (Level 4 up to 78 V standoff). Standby current is ≤10 μA at VWM.
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) | 220 V - maximum continuous operating voltage before clamping initiates |
| Max Clamping Voltage (VC) | 356 V @ 990 A - limits downstream circuit voltage during worst-case surge |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to heatsink or PCB copper area |
| Response Time | <5 ns - ensures sub-nanosecond turn-on for fast-rising transients |
| Standby Current (ID) | ≤10 μA @ 220 V - negligible leakage in normal operation |
| Operating Temperature Range | −55 °C to +150 °C - qualified for extended aerospace and under-hood automotive use |
Pinout & Package
The MAPLAD36KP220CAE3 uses a PLAD surface-mount package with metal base cathode (bidirectional symmetry eliminates polarity marking). Dimensions: 12.32 × 10.54 × 5.08 mm (L × W × H), weight ≈1.85 g. Requires recommended FR4 pad layout (A = 11.94 mm, B = 5.85 mm) for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (Anode-side pad) | Anode connection (bidirectional) | One side of symmetrical avalanche junction; no fixed polarity |
| Terminal 2 (Cathode-side pad) | Cathode connection (bidirectional) | Opposite side of symmetrical junction; metal base serves as thermal path |
| Metal base (underside) | Thermal conduction plane | Directly bonded to PCB copper pour or heatsink; primary heat dissipation path |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Protects AC-coupled or floating signal/power lines without polarity constraints |
| 36 kW peak pulse rating | Validated per RTCA DO-160 Section 22 multi-stroke lightning test protocol |
| RoHS-compliant matte-tin plating (e3) | Meets J-STD-020B Level 1 moisture sensitivity; no dry pack required |
| AEC-Q101 qualified | Screened for automotive reliability including surge testing and lot traceability |
| Low RθJC (1.0 °C/W) | Enables >70 W steady-state dissipation when mounted on 100 cm² 2-oz copper |
Applications
| Aircraft Avionics Power Input | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Protection of 28 V DC power inputs in flight control computers exposed to lightning-induced surges per DO-160F Section 22. IC Role / Device Role / Timing Role: Primary transient suppression device placed at board-level power entry point. Use Value: Clamps 36 kW surges to ≤356 V while maintaining <5 ns response, preventing latch-up or burnout in downstream DC/DC converters. | Use Scenario: Load dump protection on 12 V battery-fed ECU power rails during alternator regulation failure. IC Role / Device Role / Timing Role: High-energy crowbar device absorbing ISO 7637-2 Pulse 5a/b energy without degradation. Use Value: Sustains 990 A peak current at 220 V standoff, enabling single-device compliance with Class 5 load dump requirements. |
| Industrial Motor Drive DC Bus | Railway Signaling Interface |
Use Scenario: Surge protection on 220 V DC bus lines in variable-frequency drives subjected to switching transients and induced RFI. IC Role / Device Role / Timing Role: Secondary protection stage after upstream MOVs, handling fast repetitive transients. Use Value: Withstands 0.05% duty cycle impulse repetition and maintains ≤10 μA leakage, ensuring long-term reliability in harsh EMI environments. | Use Scenario: IEC 61000-4-5 Class 4 surge protection on 220 V signaling lines in trackside interlocking systems. IC Role / Device Role / Timing Role: Bidirectional clamping element on isolated communication/data lines with floating ground reference. Use Value: Meets 42 Ω source impedance Class 4 requirements with 356 V clamping, limiting stress on optocouplers and RS-485 transceivers. |
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 SP36-220 | Same 220 V VWM and 36 kW rating, but RθJC = 1.5 °C/W; slightly higher clamping (365 V @ 990 A) | Qualified to AEC-Q101 only; not RTCA DO-160F tested | Select when cost sensitivity outweighs aerospace qualification needs |
| Vishay SMAJ220CA | Lower PPP (400 W), smaller SMA package, RθJA = 50 °C/W; not suitable for multi-stroke lightning | Intended for board-level ESD/EFT only (IEC 61000-4-2/4), not system-level surge | Select only for low-energy signal-line protection where space is constrained |
Compared with Littelfuse SP36-220 and Vishay SMAJ220CA, MAPLAD36KP220CAE3 uniquely combines RTCA DO-160F Section 22 qualification, 1.0 °C/W thermal resistance, and bidirectional 36 kW capability-making it the only option for certified airborne lightning protection at 220 V standoff.
Availability
MAPLAD36KP220CAE3 is available at Aetrix Electronics and suitable for aircraft avionics power input, automotive engine control unit (ECU), and industrial motor drive DC bus applications requiring stable component supply across extended product lifecycles.
Supply support for MAPLAD36KP220CAE3 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) designs high-reliability semiconductors for aerospace, defense, and industrial markets, with expertise in radiation-hardened ICs, timing solutions, and surge protection devices.
The MAPLAD36KP220CAE3 belongs to Microsemi's high-power PLAD TVS family, engineered specifically for certified lightning and load-dump protection in safety-critical platforms where multi-stroke survivability and thermal stability are mandatory.
FAQ
What is the clamping voltage of MAPLAD36KP220CAE3 at its rated peak pulse current?
The MAPLAD36KP220CAE3 has a maximum clamping voltage (VC) of 356 V at 990 A peak pulse current 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 circuits during worst-case surge events. The clamping performance is guaranteed across −55 °C to +150 °C junction temperature range.
Is MAPLAD36KP220CAE3 qualified for automotive applications?
Yes, MAPLAD36KP220CAE3 is AEC-Q101 qualified and tested per automotive surge standards including ISO 7637-2 Pulse 5a/b (load dump). Its 220 V standoff and 356 V clamping enable compliance with Class 5 load dump requirements when properly mounted on thermally enhanced PCB layouts. Full qualification documentation is available upon request from Aetrix Electronics.
Does MAPLAD36KP220CAE3 require a heatsink for reliable operation?
MAPLAD36KP220CAE3 does not require an external heatsink for transient surge events due to its 1.0 °C/W junction-to-case thermal resistance and metal-base construction. However, for sustained power dissipation above 2.5 W, a minimum 100 cm² 2-oz copper pour is recommended. Steady-state derating curves are provided in Figure 5 of the RF01216 datasheet.
How does the CA suffix in MAPLAD36KP220CAE3 indicate device polarity?
The "CA" suffix in MAPLAD36KP220CAE3 explicitly denotes bidirectional construction. Unlike unidirectional variants (e.g., MAPLAD36KP220AE3), this version provides symmetrical clamping for both positive and negative transients without polarity orientation constraints. The metal base serves as a common thermal path-not a designated cathode-as confirmed in the device polarity note on page 2 of RF01216.
What is the moisture sensitivity level (MSL) of MAPLAD36KP220CAE3?
MAPLAD36KP220CAE3 is rated MSL Level 1 per IPC/JEDEC J-STD-020B, meaning it has unlimited floor life and requires no dry pack or baking prior to reflow soldering. This is enabled by its void-free UL94V-0 epoxy body and annealed matte-tin (e3) terminations, which prevent moisture ingress and ensure robust lead-free assembly compatibility.
MAPLAD36KP220CAE3 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):
- 220V
- Voltage - Breakdown (Min):
- 245V
- Voltage - Clamping (Max) @ Ipp:
- 356V
- Current - Peak Pulse (10/1000µs):
- 102A
- 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
MAPLAD36KP220CAE3 FAQ
1.How can I place an order for MAPLAD36KP220CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP220CAE3 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 MAPLAD36KP220CAE3 reliable?
The price and inventory of MAPLAD36KP220CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP220CAE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP220CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP220CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP220CAE3?
MAPLAD36KP220CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP220CAE3 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 MAPLAD36KP220CAE3?
For technical support, including MAPLAD36KP220CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP220CAE3 requirements.
6.How does Aetrix verify that MAPLAD36KP220CAE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP220CAE3 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 MAPLAD36KP220CAE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP220CAE3?
All MAPLAD36KP220CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP220CAE3, 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 MAPLAD36KP220CAE3 part is unused and in its original packaging.
Return procedure for MAPLAD36KP220CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP220CAE3 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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Diodes Incorporated
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D5V0P1B2LP-7B
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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Diodes Incorporated
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