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Microchip Technology MAPLAD18KP200CAE3
- Part No.:
- MAPLAD18KP200CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD18KP200CAE3.pdf
- Description:
- TVS DIODE 200VWM 322VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:2,461
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Product details
Overview
MAPLAD18KP200CAE3 from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace and automotive systems. It delivers 18,000 W peak pulse power at 10/1000 μs, features a 200 V reverse standoff voltage (VWM), clamps to ≤322 V at 10 A IPP, and meets RTCA DO-160 Section 22 multi-stroke lightning requirements in aircraft avionics.
For engineers reviewing the MAPLAD18KP200CAE3 datasheet, MAPLAD18KP200CAE3 pinout, MAPLAD18KP200CAE3 application, or MAPLAD18KP200CAE3 equivalent, key selection criteria include its bidirectional polarity, 200 V VWM rating, 322 V max clamping voltage at 10 A, IEC 61000-4-5 Class 4 compliance with 42 Ω source impedance, and RoHS-compliant e3 termination plating.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device during transients, leveraging avalanche breakdown across its silicon junction to divert surge current away from protected circuitry. Its metal-base package provides low thermal resistance (RθJC = 0.7 °C/W) and direct heat sinking capability, enabling sustained multi-pulse operation under RTCA DO-160 Waveform 4 (6.4/69 μs) Level 4 stress.
It supports secondary lightning protection per IEC 61000-4-5 across multiple source impedances (2 Ω, 12 Ω, 42 Ω), with validated performance up to Class 4 at 42 Ω and Class 2 at 2 Ω. The device is AEC-Q101 qualified and undergoes 3σ lot norm screening on standby current (ID).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 18,000 W @ 10/1000 μs - enables robust protection against lightning-induced surges in aircraft wiring |
| Reverse Standoff Voltage (VWM) | 200 V - matches nominal 115 VAC-derived DC bus or 270 VDC aircraft power systems |
| Max Clamping Voltage (VC) | 322 V @ 10 A IPP - ensures downstream ICs rated ≥330 V remain within safe operating limits |
| Breakdown Voltage (V(BR)) | 222–245 V @ I(BR) - guarantees reliable turn-on margin above VWM for stable clamping behavior |
| Thermal Resistance (Junction-to-Case) | 0.7 °C/W - allows direct mounting to heatsink for thermal management in high-duty-cycle environments |
| Standby Current (ID) | ≤10 μA @ 200 V - minimizes leakage impact on high-impedance sensor or control circuits |
| Temperature Coefficient (αV(BR)) | 243 mV/°C - enables predictable voltage shift over -55°C to +150°C operating range |
Pinout & Package
The MAPLAD18KP200CAE3 uses a surface-mount PLAD package with metal baseplate (cathode) and two solderable terminals on the top surface. The cathode is the metal base underside; anode is marked on top surface per Microsemi nomenclature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top marking side) | Surge current entry point for positive transients | Connects to line being protected; forms one half of bidirectional conduction path |
| Cathode (metal base underside) | Common reference and heat sink interface | Must be soldered to copper pour or heatsink; serves as thermal and electrical return path |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction (CA suffix) | Protects AC-coupled or floating signal lines without polarity constraints |
| 18 kW peak pulse rating | Meets RTCA DO-160 Section 22 multi-stroke lightning test requirements for commercial aircraft |
| RoHS-compliant e3 matte-tin plating | Enables lead-free reflow assembly while maintaining solderability and corrosion resistance |
| MIL-PRF-19500 upscreening options | Supports high-reliability programs requiring extended lot traceability and burn-in screening |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and floor-life limitations for production handling |
Applications
| Aircraft Avionics Power Input | Automotive Load Dump Protection |
|---|---|
Use Scenario: 270 VDC primary power feed to flight control computers and inertial navigation units. IC Role / Device Role / Timing Role: Primary surge clamp at main power entry point, absorbing multi-stroke lightning energy before it reaches DC-DC converters. Use Value: Enables compliance with RTCA DO-160F Section 22 Waveform 4 Level 4 (6.4/69 μs), preventing latch-up or destruction of downstream PMICs. | Use Scenario: 12 V/24 V battery rail in engine control modules exposed to ISO 7637-2 load dump events. IC Role / Device Role / Timing Role: Fast-response shunt protector that clamps transients within 5 ns to limit voltage overshoot to <35 V. Use Value: Sustains 18,000 W pulses without degradation, meeting AEC-Q101 stress requirements for automotive under-hood applications. |
| Industrial Motor Drive DC Bus | Telecom Base Station Power Interface |
Use Scenario: 400 VDC intermediate bus in variable-frequency drives subject to IGBT switching transients. IC Role / Device Role / Timing Role: Secondary protection layer after input filter, clamping fast-rising dv/dt spikes induced by parasitic inductance. Use Value: 322 V clamping at 10 A ensures gate drivers and current sensors remain below absolute maximum ratings during repetitive surges. | Use Scenario: -48 VDC telecom power feed entering remote radio units mounted on cell towers. IC Role / Device Role / Timing Role: Bidirectional clamp protecting both positive and negative polarity surges from induced lightning coupling on long feeder cables. Use Value: Validated for IEC 61000-4-5 Class 4 with 42 Ω source impedance, providing certified secondary lightning immunity per EN 61000-4-5. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ200CA | 600 W PPP rating, SMA package, RθJA = 110 °C/W | Limited to single-stroke surges; unsuitable for RTCA DO-160 multi-stroke testing | Select when cost-sensitive, low-energy industrial I/O protection is required |
| SMCJ200CA | 1500 W PPP rating, SMC package, RθJC = 2.5 °C/W | Cannot sustain 18 kW pulses; fails under repeated 10/1000 μs stress | Choose only for non-aerospace applications where peak power demand is <2 kW |
Compared with SMBJ200CA and SMCJ200CA, the MAPLAD18KP200CAE3 uniquely delivers 12× higher peak pulse power, 3.6× lower junction-to-case thermal resistance, and full qualification for aircraft-level lightning standards-making it irreplaceable for certified avionics power entry protection.
Availability
MAPLAD18KP200CAE3 is available at Aetrix Electronics and suitable for aircraft avionics, automotive powertrain electronics, industrial motor drives, and telecom infrastructure requiring stable component supply across extended product lifecycles.
Supply support for MAPLAD18KP200CAE3 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 semiconductors for aerospace, defense, and industrial markets, with expertise in radiation-hardened ICs, timing solutions, and power protection devices.
The MAPLAD18KP200CAE3 belongs to Microsemi's high-power PLAD TVS family, engineered specifically for certified lightning protection in safety-critical airborne systems and harsh-environment vehicle electronics.
FAQ
What is the clamping voltage of MAPLAD18KP200CAE3 at its rated peak pulse current?
The MAPLAD18KP200CAE3 has a maximum clamping voltage (VC) of 322 V at 10 A peak pulse current (IPP) under 10/1000 μs waveform conditions. This value is measured per Figure 3 in RF01215 Rev B and ensures protected circuitry remains within safe voltage margins during high-energy transients. The MAPLAD18KP200CAE3 maintains this clamping performance across its full operating temperature range of –55°C to +150°C.
Is MAPLAD18KP200CAE3 qualified for automotive applications?
Yes, MAPLAD18KP200CAE3 is AEC-Q101 qualified and tested per the requirements of that standard, making it suitable for automotive powertrain and chassis applications. Its 18,000 W peak pulse rating and 200 V standoff voltage align with ISO 7637-2 load dump protection needs. The MAPLAD18KP200CAE3 also supports optional MIL-PRF-19500 upscreening for mission-critical vehicle systems.
Does MAPLAD18KP200CAE3 meet RTCA DO-160 lightning requirements?
Yes, MAPLAD18KP200CAE3 is explicitly validated for RTCA DO-160F Section 22 multi-stroke lightning testing, including Waveform 4 (6.4/69 μs) Level 4 at 25°C. The device's 18 kW rating, low clamping latency (<5 ns), and thermal design enable repeatable performance across multiple strokes. MAPLAD18KP200CAE3 documentation confirms compliance for all voltage variants from 7.0 V to 200 V in CA configuration.
What does the "E3" suffix indicate in MAPLAD18KP200CAE3?
"E3" denotes RoHS-compliant annealed matte-tin plating on the MAPLAD18KP200CAE3 terminals, per IPC/JEDEC J-STD-020B Level 1 moisture sensitivity classification. This finish ensures compatibility with lead-free reflow processes while maintaining solderability and corrosion resistance. The MAPLAD18KP200CAE3 requires no dry-pack storage and has unlimited floor life under standard handling conditions.
How is thermal management implemented for MAPLAD18KP200CAE3 in PCB layout?
MAPLAD18KP200CAE3 requires direct thermal coupling of its metal base (cathode) to a large copper pour or external heatsink, leveraging its 0.7 °C/W junction-to-case thermal resistance. The recommended pad layout specifies minimum 12.32 × 10.54 mm² copper area with thermal vias to inner ground planes. MAPLAD18KP200CAE3 derating curves (Figure 3) show 100% PPP rating only when case temperature is held ≤100°C via proper heatsinking.
MAPLAD18KP200CAE3 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):
- 56A
- Power - Peak Pulse:
- 18000W (18kW)
- 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
MAPLAD18KP200CAE3 FAQ
1.How can I place an order for MAPLAD18KP200CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD18KP200CAE3 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 MAPLAD18KP200CAE3 reliable?
The price and inventory of MAPLAD18KP200CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD18KP200CAE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD18KP200CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD18KP200CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD18KP200CAE3?
MAPLAD18KP200CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD18KP200CAE3 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 MAPLAD18KP200CAE3?
For technical support, including MAPLAD18KP200CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD18KP200CAE3 requirements.
6.How does Aetrix verify that MAPLAD18KP200CAE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD18KP200CAE3 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 MAPLAD18KP200CAE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD18KP200CAE3?
All MAPLAD18KP200CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD18KP200CAE3, 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 MAPLAD18KP200CAE3 part is unused and in its original packaging.
Return procedure for MAPLAD18KP200CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD18KP200CAE3 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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