My Inquiry
My Account
Microchip Technology MAPLAD18KP100CAE3
- Part No.:
- MAPLAD18KP100CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD18KP100CAE3.pdf
- Description:
- TVS DIODE 100VWM 162VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:7,871
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAPLAD18KP100CAE3 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 100 V reverse standoff voltage (VWM), clamps to ≤162 V at 112 A peak impulse current (IPP), and meets RTCA DO-160F Level 4 pin injection for Waveform 4.
For engineers reviewing the MAPLAD18KP100CAE3 datasheet, MAPLAD18KP100CAE3 pinout, MAPLAD18KP100CAE3 application, or MAPLAD18KP100CAE3 equivalent, key selection criteria include its bidirectional polarity, 100 V VWM rating, low thermal resistance (RθJC = 0.7 °C/W), compliance with IEC 61000-4-5 Class 1–5 (42 Ω source), and RoHS-compliant e3 plating.
Technical Context
This TVS diode operates as a clamping device in parallel with sensitive circuitry to divert high-energy transients-such as lightning-induced surges or automotive load dump-away from downstream components. Its bidirectional construction enables symmetrical clamping for AC-coupled or floating signal lines, and its low RθJC ensures effective heat dissipation during multi-stroke events per RTCA DO-160 Section 22.
The device uses an avalanche breakdown mechanism with a specified breakdown voltage range of 111–123 V at I(BR), exhibits <5 ns response time, and maintains ≤10 μA standby current at VWM. It is qualified to AEC-Q101 and supports MIL-PRF-19500 upscreening options for high-reliability programs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 18,000 W @ 10/1000 μs - sustains aircraft lightning surge energy without failure |
| Reverse Standoff Voltage (VWM) | 100 V - maximum continuous operating voltage before clamping initiates |
| Clamping Voltage (VC) | ≤162 V @ IPP = 112 A - limits transient voltage seen by protected ICs |
| Breakdown Voltage (V(BR)) | 111–123 V @ I(BR) - defines precise avalanche onset threshold |
| Thermal Resistance (RθJC) | 0.7 °C/W - enables efficient heat transfer to heatsink or PCB copper |
| Standby Current (ID) | ≤10 μA @ VWM - negligible leakage in normal operation |
| Response Time | <5 ns - fast enough to protect against ESD and fast-rising transients |
Pinout & Package
MAPLAD18KP100CAE3 is housed in a surface-mount PLAD package with metal base cathode (bidirectional configuration). The package features void-free UL94V-0 epoxy body, matte-tin (e3) RoHS-compliant plating, and a 1 g mass. Recommended pad layout per RF01215 Rev B specifies 12.32–12.57 mm length (A1), 10.54–10.80 mm width (A2), and 5.08–5.33 mm terminal spacing (D).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (Dual Terminal) | Bidirectional conduction path | Terminals are symmetrical; no polarity marking required - clamps both positive and negative transients identically |
| Metal Base (Bottom) | Thermal & electrical reference plane | Serves as common connection point and primary heat sink interface - must be soldered to large copper pour |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled data lines or floating bus architectures without external polarity management |
| RTCA DO-160F Waveform 4 Level 4 compliance | Validated for 6.4/69 μs pin-injection transients at 100 V VWM - critical for avionics I/O protection |
| IEC 61000-4-5 Class 1–5 support (42 Ω source) | Meets secondary lightning immunity requirements across all severity levels in industrial and transport systems |
| 0.7 °C/W junction-to-case thermal resistance | Allows >90% of surge energy to be conducted into PCB copper or heatsink - reduces thermal stress on die |
| AEC-Q101 qualification | Confirms robustness for automotive under-hood applications including load dump and ISO 7637-2 pulses |
Applications
| Aerospace Avionics I/O Protection | Automotive Power Distribution |
|---|---|
Use Scenario: Protecting ARINC 429, MIL-STD-1553, or CAN FD transceivers from lightning-induced surges on aircraft wiring harnesses. IC Role / Device Role / Timing Role: Parallel-connected transient shunt that clamps line-to-ground surges before they reach communication PHYs. Use Value: Enables compliance with RTCA DO-160 Section 22 multi-stroke lightning testing without derating or parallel device stacking. | Use Scenario: Safeguarding 12 V/24 V power rails in engine control units (ECUs) during alternator load dump events. IC Role / Device Role / Timing Role: High-power crowbar element placed at main power input to absorb >100 J surges per ISO 7637-2 Pulse 5a. Use Value: Eliminates need for bulky discrete MOVs or hybrid TVS-MOV solutions while maintaining footprint efficiency. |
| Industrial Motor Drive Control | Railway Signaling Interface |
Use Scenario: Shielding encoder feedback lines and analog sensor inputs in variable-frequency drives exposed to switching transients from IGBTs. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp on differential position/speed signals. Use Value: Prevents false triggering or latch-up in precision ADCs and microcontrollers during high-dI/dt motor commutation. | Use Scenario: Hardening Ethernet PHYs and RS-485 transceivers in track-side signaling equipment against induced surges from nearby traction currents. IC Role / Device Role / Timing Role: Primary-level surge protector on field-side communication ports interfacing with legacy relay logic. Use Value: Achieves EN 50121-4 immunity up to Level 4 (2 kV line-earth) using single-device solution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA | 600 W PPP rating, SMB package, RθJC ≈ 25 °C/W | Limited to single-stroke or low-duty-cycle surges; unsuitable for DO-160 multi-stroke validation | Select only for cost-sensitive industrial controls where full lightning compliance is not required. |
| SMCJ100CA | 1500 W PPP rating, SMC package, RθJC ≈ 12 °C/W | Cannot sustain repeated 18 kW impulses; fails after ~3–5 strokes under DO-160 test conditions | Acceptable for automotive infotainment or body electronics, but not for flight-critical or engine-bay use. |
Compared with SMBJ100CA and SMCJ100CA, MAPLAD18KP100CAE3 provides 30× higher peak power handling, 17× lower thermal resistance, and certified multi-stroke endurance - making it the only viable option for aerospace-grade lightning protection where single-event reliability is insufficient.
Availability
MAPLAD18KP100CAE3 is available at Aetrix Electronics and suitable for aerospace avionics, automotive power distribution, industrial motor drive control, and railway signaling applications requiring stable component supply across extended product lifecycles.
Supply support for MAPLAD18KP100CAE3 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 MAPLAD family was engineered specifically for high-energy transient suppression in safety-critical platforms, with emphasis on DO-160, AEC-Q101, and IEC 61000-4-5 compliance - targeting environments where single-point failure is unacceptable.
FAQ
What is the clamping voltage of MAPLAD18KP100CAE3 at its rated peak pulse current?
The MAPLAD18KP100CAE3 has a maximum clamping voltage (VC) of 162 V when subjected to its peak impulse current (IPP) of 112 A under 10/1000 μs waveform conditions. This value is guaranteed per the manufacturer's electrical characteristics table and ensures downstream components experience limited overvoltage during surge events. The MAPLAD18KP100CAE3 achieves this clamping performance while maintaining sub-5 ns response time.
Is MAPLAD18KP100CAE3 qualified for automotive applications?
Yes, MAPLAD18KP100CAE3 is AEC-Q101 qualified and explicitly rated for automotive load dump protection per ISO 7637-2 Pulse 5a. Its 18,000 W peak pulse power rating, 100 V standoff voltage, and low thermal resistance make it suitable for under-hood ECUs and power distribution modules. The MAPLAD18KP100CAE3 also supports optional MIL-PRF-19500 upscreening for mission-critical vehicle subsystems.
Does MAPLAD18KP100CAE3 meet RTCA DO-160 lightning protection requirements?
Yes, MAPLAD18KP100CAE3 is validated for RTCA DO-160 Section 22 multi-stroke lightning testing and meets Level 4 pin injection for Waveform 4 (6.4/69 μs) and Waveform 5A (40/120 μs) per the referenced MicroNote 132. Its bidirectional construction and 18 kW rating enable compliance across multiple stroke counts without degradation - a requirement unmet by standard SMC/SMB TVS devices. The MAPLAD18KP100CAE3 is widely deployed in certified avionics I/O protection circuits.
What is the thermal resistance specification for MAPLAD18KP100CAE3?
The MAPLAD18KP100CAE3 has a junction-to-case thermal resistance (RθJC) of 0.7 °C/W, measured under defined mounting conditions per RF01215 Rev B. This ultra-low value enables efficient heat transfer from the silicon die to the PCB copper or external heatsink, supporting sustained multi-pulse operation. For reliable thermal performance, the MAPLAD18KP100CAE3 must be mounted on a minimum 25 mm² copper area per terminal, per the recommended pad layout.
How does the "CA" suffix in MAPLAD18KP100CAE3 indicate device functionality?
The "CA" suffix in MAPLAD18KP100CAE3 denotes bidirectional polarity - meaning the device provides symmetrical clamping for both positive and negative transients without requiring orientation during placement. This differs from "A"-suffixed unidirectional variants, where the cathode is fixed to the metal base. The MAPLAD18KP100CAE3 leverages this symmetry for AC-coupled interfaces like RS-485, CAN FD, or differential sensor lines in harsh environments.
MAPLAD18KP100CAE3 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):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 162V
- Current - Peak Pulse (10/1000µs):
- 112A
- 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
MAPLAD18KP100CAE3 FAQ
1.How can I place an order for MAPLAD18KP100CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD18KP100CAE3 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 MAPLAD18KP100CAE3 reliable?
The price and inventory of MAPLAD18KP100CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD18KP100CAE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD18KP100CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD18KP100CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD18KP100CAE3?
MAPLAD18KP100CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD18KP100CAE3 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 MAPLAD18KP100CAE3?
For technical support, including MAPLAD18KP100CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD18KP100CAE3 requirements.
6.How does Aetrix verify that MAPLAD18KP100CAE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD18KP100CAE3 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 MAPLAD18KP100CAE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD18KP100CAE3?
All MAPLAD18KP100CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD18KP100CAE3, 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 MAPLAD18KP100CAE3 part is unused and in its original packaging.
Return procedure for MAPLAD18KP100CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD18KP100CAE3 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…
