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Microchip Technology MAPLAD18KP13AE3
- Part No.:
- MAPLAD18KP13AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD18KP13AE3.pdf
- Description:
- TVS DIODE 13VWM 21.5VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:6,362
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Product details
Overview
MAPLAD18KP13AE3 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 13 V reverse standoff voltage (VWM), clamps to ≤21.5 V at 838 A peak current, and operates across –55°C to +150°C junction temperature. It is qualified to AEC-Q101 and meets RTCA DO-160F Waveform 4 Level 4 for pin injection protection.
For engineers reviewing the MAPLAD18KP13AE3 datasheet, MAPLAD18KP13AE3 pinout, MAPLAD18KP13AE3 application, or MAPLAD18KP13AE3 equivalent, key selection criteria include its 13 V VWM rating, 21.5 V max clamping voltage at 838 A, low 0.7 °C/W junction-to-case thermal resistance, RoHS-compliant e3 plating, and qualification for lightning-level secondary protection per IEC 61000-4-5 with 42 Ω source impedance.
Technical Context
The MAPLAD18KP13AE3 employs an avalanche diode structure optimized for fast response (<100 ps rise time) and high-energy absorption in a low-profile thermoset epoxy package. Its metal-base cathode construction enables direct thermal coupling to PCB copper or heatsinks, supporting sustained multi-stroke surge handling under RTCA DO-160 Section 22 conditions.
It is rated for 100% surge testing per lot, with 3σ screening on standby current (ID), and supports secondary lightning protection up to Class 5 per IEC 61000-4-5 when configured with 42 Ω source impedance - specifically validated for MPLAD18KP7.0A through MPLAD18KP200CA variants including MAPLAD18KP13AE3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - maximum continuous DC or peak AC operating voltage the device blocks without conduction |
| V(BR) min/max | 14.4 V to 15.9 V - breakdown occurs within this range at specified test current, defining turn-on threshold |
| VC @ IPP | ≤21.5 V at 838 A - maximum voltage seen across terminals during worst-case 10/1000 μs surge, protecting downstream circuitry |
| PPP | 18,000 W @ 10/1000 μs - peak power dissipation capability under standardized lightning surge waveform |
| RθJC | 0.7 °C/W - enables efficient heat transfer from junction to case, critical for thermal management in high-reliability mounts |
| ID @ VWM | ≤10 μA - ultra-low leakage ensures minimal standby power loss and signal integrity in high-impedance circuits |
| Package | PLAD - surface-mount, void-free UL94V-0 epoxy body with metal base cathode for thermal and mechanical robustness |
Pinout & Package
The MAPLAD18KP13AE3 uses a 2-terminal PLAD package with cathode on the metal base (bottom side) and anode on the top-side metallized pad. The package measures 12.32–12.57 mm × 10.54–10.80 mm × 3.68–3.94 mm (L×W×H), with recommended FR4 mounting pad per RF01215 Rev B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top-side pad) | Surge current entry point for unidirectional clamping | Connected to protected line; conducts surge current toward cathode during overvoltage event |
| Cathode (metal base) | Surge current return path and thermal interface | Must be soldered to large copper pour or heatsink; serves as primary thermal conduction path and ground reference |
Key Features
| Feature | Design Value |
|---|---|
| 18 kW peak pulse power rating | Enables single-device protection against severe lightning-induced transients per RTCA DO-160 Section 22 |
| AEC-Q101 qualified | Validated for automotive under-hood and chassis applications requiring extended temperature and reliability compliance |
| RoHS-compliant e3 plating | Tin finish compatible with lead-free reflow profiles and IPC/JEDEC J-STD-020B Level 1 moisture sensitivity |
| Lot-traceable wafer fabrication | Supports full traceability for aerospace programs requiring MIL-PRF-19500 upscreening options |
| 0.7 °C/W RθJC | Allows >90% of surge energy to dissipate externally via PCB copper, reducing junction temperature rise during repetitive surges |
Applications
| Aerospace Avionics Power Input | Automotive Load Dump Protection |
|---|---|
Use Scenario: 28 V DC power input stage of flight control computers exposed to DO-160F Waveform 4 (6.4/69 μs) lightning-induced surges. IC Role / Device Role / Timing Role: Primary transient voltage suppressor placed directly at connector entry point to clamp incoming surges before they reach DC-DC converters. Use Value: Clamps to ≤21.5 V at 838 A, ensuring downstream 3.3 V/5 V logic remains below absolute maximum ratings during Level 4 pin injection events. | Use Scenario: 12 V battery-fed ECU power rail subjected to ISO 7637-2 Pulse 5a load dump transients up to 120 V. IC Role / Device Role / Timing Role: Unidirectional TVS shunting excess energy to ground during alternator disconnection events. Use Value: Absorbs 18,000 W peak power without degradation, maintaining <10 μA leakage to preserve sleep-mode current budgets. |
| Industrial Motor Drive DC Bus | Railway Signaling Interface |
Use Scenario: DC link protection in 400 V industrial inverters where IGBT switching induces high dV/dt transients. IC Role / Device Role / Timing Role: Secondary surge limiter parallel to bulk capacitance, clamping fast-rising spikes before they stress gate drivers. Use Value: Sub-100 ps response time limits voltage overshoot to <21.5 V, preventing unintended IGBT turn-on and shoot-through failure. | Use Scenario: 24 V signaling lines in EN 50121-3-2 compliant railway trackside equipment subject to indirect lightning coupling. IC Role / Device Role / Timing Role: IEC 61000-4-5 Class 4 secondary protector with 42 Ω source impedance on fieldbus interfaces. Use Value: Validated clamping performance at 838 A ensures interface ICs survive repeated 4 kV surges without latch-up or parametric shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13A | 600 W PPP rating, SMC package, 21.5 V VC @ 27.9 A - 30× lower peak power handling | Intended for board-level ESD/EFT only; not qualified for DO-160 or IEC 61000-4-5 Class 4+ | Select SMBJ13A only for cost-sensitive consumer electronics with sub-1 kV surge requirements. |
| SMCJ13A | 1500 W PPP rating, same SMC package, 21.5 V VC @ 69.4 A - 12× lower energy capacity than MAPLAD18KP13AE3 | Lacks AEC-Q101 qualification and RTCA DO-160 validation; limited to industrial-grade surge suppression | Choose SMCJ13A for non-safety-critical industrial controls where 1.5 kW peak power suffices and aerospace/automotive certification is unnecessary. |
Compared with SMBJ13A and SMCJ13A, MAPLAD18KP13AE3 provides 12–30× higher peak pulse power, certified qualification for aviation lightning standards, and a metal-base thermal path enabling reliable operation under multi-stroke surge conditions - making it irreplaceable in safety-critical aerospace and high-end automotive power systems.
Availability
MAPLAD18KP13AE3 is available at Aetrix Electronics and suitable for aerospace avionics, automotive powertrain ECUs, and industrial motor drive systems requiring stable component supply across extended product lifecycles.
Supply support for MAPLAD18KP13AE3 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) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened solutions for aerospace, defense, and industrial markets.
The MAPLAD18KP13AE3 belongs to Microsemi's high-power PLAD TVS family, engineered specifically for aircraft lightning protection and automotive load dump compliance - emphasizing thermal robustness, multi-stroke survivability, and full qualification to RTCA DO-160 and AEC-Q101.
FAQ
What is the clamping voltage of MAPLAD18KP13AE3 at its rated peak pulse current?
The MAPLAD18KP13AE3 has a maximum clamping voltage (VC) of 21.5 V at its rated peak pulse current (IPP) of 838 A under 10/1000 μs waveform conditions. This value is guaranteed per the manufacturer's electrical characteristics table and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The MAPLAD18KP13AE3 maintains this clamping performance across its full operating temperature range.
Is MAPLAD18KP13AE3 qualified for automotive applications?
Yes, MAPLAD18KP13AE3 is fully qualified to AEC-Q101 for automotive use. It undergoes lot-level surge testing, 3σ screening on standby current, and thermal cycling validation to ensure reliability in under-hood and chassis environments. Its 13 V VWM and 21.5 V clamping voltage make MAPLAD18KP13AE3 suitable for 12 V battery rail protection against ISO 7637-2 Pulse 5a load dump transients.
Does MAPLAD18KP13AE3 meet RTCA DO-160 lightning protection requirements?
Yes, MAPLAD18KP13AE3 is explicitly validated for RTCA DO-160F Section 22 lightning-induced transient protection. It achieves Level 4 pin injection protection per Waveform 4 (6.4/69 μs) and supports multi-stroke compliance essential for aircraft power and avionics systems. The MAPLAD18KP13AE3's 18,000 W PPP rating and low RθJC are key enablers of this certification.
What does the "E3" suffix indicate in MAPLAD18KP13AE3?
"E3" denotes RoHS-compliant matte-tin plating per J-STD-020B Level 1 moisture sensitivity - meaning MAPLAD18KP13AE3 requires no dry-pack handling and is compatible with standard lead-free reflow profiles. This finish ensures solderability and long-term intermetallic stability while meeting environmental compliance mandates for aerospace and automotive programs.
How is thermal management implemented for MAPLAD18KP13AE3 in high-power surge scenarios?
MAPLAD18KP13AE3 uses a metal-base cathode design with 0.7 °C/W junction-to-case thermal resistance, requiring direct soldering of the base to a large copper pour or external heatsink. Thermal performance depends on PCB pad layout per RF01215 Rev B; insufficient copper area causes junction temperature to exceed 150°C during repeated 10/1000 μs surges. Proper layout ensures MAPLAD18KP13AE3 sustains its 18,000 W rating across multi-stroke events.
MAPLAD18KP13AE3 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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 838A
- 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
MAPLAD18KP13AE3 FAQ
1.How can I place an order for MAPLAD18KP13AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD18KP13AE3 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 MAPLAD18KP13AE3 reliable?
The price and inventory of MAPLAD18KP13AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD18KP13AE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD18KP13AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD18KP13AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD18KP13AE3?
MAPLAD18KP13AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD18KP13AE3 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 MAPLAD18KP13AE3?
For technical support, including MAPLAD18KP13AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD18KP13AE3 requirements.
6.How does Aetrix verify that MAPLAD18KP13AE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD18KP13AE3 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 MAPLAD18KP13AE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD18KP13AE3?
All MAPLAD18KP13AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD18KP13AE3, 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 MAPLAD18KP13AE3 part is unused and in its original packaging.
Return procedure for MAPLAD18KP13AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD18KP13AE3 Tags
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