My Inquiry
My Account
Microchip Technology MAPLAD18KP200AE3
- Part No.:
- MAPLAD18KP200AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD18KP200AE3.pdf
- Description:
- TVS DIODE 200VWM 322VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:4,197
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAPLAD18KP200AE3 from Microsemi is a unidirectional 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 exhibits 0.7 °C/W junction-to-case thermal resistance. It is qualified to AEC-Q101 and meets RTCA DO-160F Waveform 4 Level 4 pin injection requirements.
For engineers reviewing the MAPLAD18KP200AE3 datasheet, MAPLAD18KP200AE3 pinout, MAPLAD18KP200AE3 application, or MAPLAD18KP200AE3 equivalent, key selection criteria include its 200 V VWM rating, 322 V max clamping voltage at 10 A, 18 kW surge capability, RoHS-compliant e3 plating, and qualification for aircraft lightning protection per DO-160 Section 22.
Technical Context
This TVS diode operates as a clamping device in parallel with sensitive circuitry, activating above its 200 V standoff threshold to divert transients away from downstream components. Its low RθJC (0.7 °C/W) enables effective heat transfer to a heatsink or PCB copper plane, supporting sustained multi-stroke surge events under controlled thermal conditions.
It is rated for secondary lightning protection per IEC 61000-4-5 with 42 Ω, 12 Ω, and 2 Ω source impedances (Classes 1–5 depending on impedance), and provides ESD immunity per IEC 61000-4-2 and EFT protection per IEC 61000-4-4 - all verified via full lot surge testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 200 V - Maximum continuous DC or peak AC voltage the device blocks without conduction. |
| V(BR) min/max | 222–245 V @ I(BR) - Confirmed breakdown range ensures reliable turn-on margin above VWM. |
| VC @ IPP | 322 V max @ 10 A - Clamping voltage limits stress on protected ICs during 10/1000 μs surges. |
| PPP | 18,000 W @ 10/1000 μs - Enables single-device protection against severe lightning-induced transients. |
| RθJC | 0.7 °C/W - Allows direct thermal coupling to heatsink or large copper area for multi-pulse reliability. |
| ID @ VWM | 10 μA max - Negligible leakage current preserves system standby power integrity. |
| Package | PLAD - Low-profile surface-mount package with metal base cathode for optimal thermal path. |
Pinout & Package
The MAPLAD18KP200AE3 uses the PLAD package: a surface-mount, low-profile thermoset epoxy body with exposed metal base acting as the cathode terminal. The anode is accessible via the top-side metallized pad. Polarity marking is not visible on body; cathode orientation is defined by the metal base (bottom side).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal Base (Bottom) | Cathode | Primary thermal path and high-current return node; must be soldered to large copper pour or heatsink. |
| Top Metallized Pad | Anode | Signal-side connection point; routed to line being protected (e.g., power rail or data line). |
Key Features
| Feature | Design Value |
|---|---|
| 18 kW Peak Pulse Power | Single-device protection against DO-160 Section 22 multi-stroke lightning surges without cascaded staging. |
| AEC-Q101 Qualified | Validated reliability for automotive powertrain and chassis applications requiring extended temperature and life-cycle performance. |
| e3 RoHS Compliant Plating | Matte-tin termination compatible with lead-free reflow profiles and IPC/JEDEC J-STD-020B Level 1 moisture sensitivity. |
| 0.7 °C/W RθJC | Enables >5× higher thermal power handling vs. standard SMC packages, critical for repeated surge events. |
| RTCA DO-160F Waveform 4 Level 4 Compliance | Guaranteed operation under 6.4/69 μs pin-injection transients at 25 °C - essential for avionics I/O protection. |
Applications
| Aircraft Avionics Power Input | Automotive Load Dump Protection |
|---|---|
Use Scenario: Protecting 28 V DC power inputs of flight control computers and sensor modules from lightning-induced surges per DO-160 Section 22. IC Role / Device Role / Timing Role: Primary parallel clamping TVS placed upstream of DC-DC converters and LDOs. Use Value: Withstands ≥1000A 10/1000 μs surges while limiting clamped voltage to 322 V, preserving downstream 40 V-rated input stages. | Use Scenario: Safeguarding engine control unit (ECU) power rails during alternator load dump events (ISO 7637-2 Pulse 5a/b). IC Role / Device Role / Timing Role: High-energy transient shunt connected across battery feed to ground. Use Value: Absorbs 18 kW pulses without degradation, maintaining <10 μA leakage at 200 V to avoid battery drain in parked state. |
| Industrial Motor Drive DC Bus | Railway Signaling Interface |
Use Scenario: Protecting 200 V DC bus monitoring circuits in variable-frequency drives from switching transients and inductive kickback. IC Role / Device Role / Timing Role: Standoff-rated clamping device placed between bus and isolated ADC front-end. Use Value: 200 V VWM matches nominal bus voltage; 322 V clamping ensures ADC input stays within ±10% overvoltage tolerance. | Use Scenario: Securing 200 V signaling lines in European railway signaling cabinets against induced surges from nearby traction currents. IC Role / Device Role / Timing Role: Secondary-level IEC 61000-4-5 protector on field-side interfaces with 42 Ω source impedance. Use Value: Certified for Class 4/5 protection at 42 Ω, enabling compliance with EN 50121-4 without external series impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ200A | 600 W PPP rating, SMC package, RθJC ≈ 15 °C/W, no AEC-Q101 or DO-160 qualification. | Limited to low-energy industrial I/O; unsuitable for multi-stroke lightning or automotive load dump. | Select only for cost-sensitive, non-safety-critical 200 V rail protection where surge energy ≤600 W. |
| SMCJ200A | 1500 W PPP, same SMC package, higher leakage (50 μA), no DO-160 or AEC-Q101 validation. | Acceptable for basic ESD/EFT in telecom power supplies but lacks multi-pulse endurance. | Choose when footprint compatibility with legacy SMC designs is mandatory and surge energy remains below 1.5 kW. |
Compared with SMBJ200A and SMCJ200A, MAPLAD18KP200AE3 delivers 30× higher pulse power, 21× lower thermal resistance, and formal qualification for aviation and automotive surge standards - making it the sole option for mission-critical 200 V system protection where multi-stroke reliability is required.
Availability
MAPLAD18KP200AE3 is available at Aetrix Electronics and suitable for aircraft avionics, automotive powertrain systems, and industrial motor drive designs requiring stable component supply, long-term lifecycle support, and certified surge robustness.
Supply support for MAPLAD18KP200AE3 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, RF, timing, and radiation-hardened solutions for aerospace, defense, and industrial markets.
The PLAD-series TVS family was engineered specifically for high-energy, high-reliability transient suppression in safety-critical platforms - emphasizing thermal efficiency, multi-stroke endurance, and formal qualification to DO-160, AEC-Q101, and IEC 61000-4-5.
FAQ
What is the maximum clamping voltage of MAPLAD18KP200AE3 at its rated peak pulse current?
The MAPLAD18KP200AE3 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 the RF01215 datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Is MAPLAD18KP200AE3 qualified for automotive applications?
Yes, MAPLAD18KP200AE3 is AEC-Q101 qualified, confirming its suitability for automotive powertrain and chassis applications. It meets stress test requirements including temperature cycling, humidity bias, and surge testing - validated across wafer fabrication and assembly lots with full traceability.
Does MAPLAD18KP200AE3 meet RTCA DO-160 lightning protection requirements?
Yes, MAPLAD18KP200AE3 is explicitly rated for RTCA DO-160 Section 22 multi-stroke lightning protection and supports Waveform 4 (6.4/69 μs) Level 4 pin injection testing at 25 °C. Its 18 kW rating and low RθJC enable compliance in both primary and secondary protection configurations.
What is the thermal resistance from junction to case (RθJC) for MAPLAD18KP200AE3?
The MAPLAD18KP200AE3 has a junction-to-case thermal resistance (RθJC) of 0.7 °C/W, measured with the case temperature controlled on a heatsink as specified in the datasheet. This ultra-low value enables efficient heat extraction during repetitive surge events when mounted on appropriate copper areas or heatsinks.
How is polarity identified on the MAPLAD18KP200AE3 package?
The cathode of MAPLAD18KP200AE3 is the exposed metal base on the bottom of the PLAD package; the anode is the top metallized pad. No polarity marking appears on the body - orientation must be confirmed by physical layout (metal base = cathode) and verified during PCB design and assembly.
MAPLAD18KP200AE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- Nonstandard SMD
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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
MAPLAD18KP200AE3 FAQ
1.How can I place an order for MAPLAD18KP200AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD18KP200AE3 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 MAPLAD18KP200AE3 reliable?
The price and inventory of MAPLAD18KP200AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD18KP200AE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD18KP200AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD18KP200AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD18KP200AE3?
MAPLAD18KP200AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD18KP200AE3 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 MAPLAD18KP200AE3?
For technical support, including MAPLAD18KP200AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD18KP200AE3 requirements.
6.How does Aetrix verify that MAPLAD18KP200AE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD18KP200AE3 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 MAPLAD18KP200AE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD18KP200AE3?
All MAPLAD18KP200AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD18KP200AE3, 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 MAPLAD18KP200AE3 part is unused and in its original packaging.
Return procedure for MAPLAD18KP200AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD18KP200AE3 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
