My Inquiry
My Account
Microchip Technology MPLAD18KP110CAE3
- Part No.:
- MPLAD18KP110CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD18KP110CAE3.pdf
- Description:
- TVS DIODE 110VWM 177VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:5,332
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MPLAD18KP110CAE3 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 110 V reverse standoff voltage (VWM), clamps to ≤177 V at 1000 A peak impulse current (IPP), and meets RTCA DO-160F Waveform 4 Level 4 and IEC 61000-4-5 Class 1–5 secondary lightning protection requirements.
For engineers reviewing the MPLAD18KP110CAE3 datasheet, MPLAD18KP110CAE3 pinout, MPLAD18KP110CAE3 application, or MPLAD18KP110CAE3 equivalent, this device is selected for high-reliability DC bus protection where multi-stroke lightning immunity, low thermal resistance (RθJC = 0.7 °C/W), and RoHS-compliant surface-mount packaging are critical design constraints.
Technical Context
This TVS diode operates as a bidirectional clamping device with symmetrical avalanche breakdown behavior, enabling protection against both positive and negative transients on the same line. Its metal-base package provides direct thermal path to PCB copper, supporting high-duty-cycle surge events when mounted per recommended pad layout on FR4.
It is characterized for operation across –55°C to +150°C junction temperature, with 5.0 mV/°C temperature coefficient of breakdown voltage and <5 ns response time. Compliance includes AEC-Q101 qualification, MIL-PRF-19500 upscreening options, and IEC 61000-4-2/4-4/4-5 test validation at multiple source impedances (2 Ω, 12 Ω, 42 Ω).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous DC or peak AC voltage the device blocks without conduction |
| V(BR) min/max | 122–135 V - Breakdown occurs within this range at specified test current, defining clamping onset threshold |
| VC @ IPP | ≤177 V @ 1000 A - Maximum clamped voltage seen by protected circuit during worst-case 10/1000 μs surge |
| PPP | 18,000 W - Peak transient energy absorption capability under standardized 10/1000 μs waveform |
| RθJC | 0.7 °C/W - Enables efficient heat transfer from junction to case, critical for thermal management in high-power surges |
| Package | Surface-mount PLAD - Void-free thermosetting epoxy body with tin-plated terminals, UL94V-0 rated |
| RoHS | e3 suffix - Fully compliant with EU RoHS Directive 2011/65/EU, lead-free matte-tin plating |
Pinout & Package
The MPLAD18KP110CAE3 uses a 2-terminal surface-mount PLAD package with the cathode and anode formed on opposite sides of the metal base; polarity is symmetrical due to bidirectional construction. The metal base serves as the primary thermal interface and electrical terminal for both polarities.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (Top-side metallization) | Anode/Cathode (bidirectional) | One side of symmetrical avalanche junction; connects to protected line without polarity constraint |
| Terminal 2 (Metal base / bottom) | Anode/Cathode (bidirectional) | Second side of junction; provides low-inductance, low-thermal-resistance path to PCB ground plane or chassis |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines or ungrounded DC buses without polarity concerns |
| 18 kW peak pulse rating | Supports DO-160 Section 22 multi-stroke lightning testing without degradation over repeated strikes |
| 0.7 °C/W junction-to-case thermal resistance | Allows sustained surge duty cycles when mounted on ≥1 in² copper area, reducing risk of thermal runaway |
| AEC-Q101 qualified | Validated for automotive under-hood applications including load dump and alternator ripple suppression |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and floor-life restrictions, simplifying SMT assembly logistics |
Applications
| Aircraft Avionics Power Input | Automotive Engine Control Unit (ECU) Power Rail |
|---|---|
Use Scenario: Protection of 28 V DC avionics power inputs against induced lightning transients per RTCA DO-160F Section 22 Waveform 4 Level 4. IC Role / Device Role / Timing Role: Primary clamping element placed directly at connector entry point to limit voltage excursion before reaching downstream regulators and FPGAs. Use Value: Clamps to ≤177 V while absorbing 18 kW pulses, maintaining system uptime during multi-stroke lightning events without sacrificial failure. | Use Scenario: Suppression of 12 V battery line transients caused by alternator load dump and inductive switching in modern gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed between battery rail and ECU input filter to clamp both positive and negative spikes simultaneously. Use Value: Withstands 1000 A peak current at 10/1000 μs and maintains <5 ns response, preventing latch-up or gate oxide damage in microcontrollers and CAN transceivers. |
| Industrial Motor Drive DC Bus | Railway Signaling Interface |
Use Scenario: Protection of 110 V DC intermediate bus in variable-frequency drives exposed to regenerative braking surges and grid coupling transients. IC Role / Device Role / Timing Role: High-power TVS installed across DC bus terminals to shunt energy away from IGBT gate drivers and bus capacitors. Use Value: 18,000 W PPP rating and 0.7 °C/W RθJC enable reliable operation without heatsink under repetitive 1 Hz surge conditions per IEC 61000-4-5 Class 4. | Use Scenario: Secondary surge protection for 110 V signaling lines in trackside electronic interlocking systems subjected to nearby lightning strikes. IC Role / Device Role / Timing Role: Bidirectional TVS deployed at field cable entry point to meet EN 50121-4 immunity requirements for railway applications. Use Value: Validated for IEC 61000-4-5 testing at 42 Ω source impedance (Class 1–5), ensuring compliance without additional series impedance or filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA | 600 W PPP rating, SMB package, RθJC ≈ 15 °C/W | Not suitable for DO-160F Level 4 or IEC 61000-4-5 Class 4+; limited to low-energy consumer-grade surges | Select only for cost-sensitive, non-aerospace designs with <100 A IPP requirements |
| SMCJ110CA | 1500 W PPP rating, SMC package, RθJC ≈ 3.5 °C/W | Meets IEC 61000-4-5 Class 3 but lacks DO-160F Waveform 4 validation and AEC-Q101 qualification | Acceptable for industrial controls where 18 kW capability is not mandated, but requires derating above 85°C ambient |
Compared with SMBJ110CA and SMCJ110CA, the MPLAD18KP110CAE3 delivers 30× and 12× higher peak pulse power respectively, with verified performance under aviation-grade multi-stroke lightning and automotive load dump stress profiles - making it the only option for mission-critical 110 V DC systems requiring >1000 A surge handling and thermal robustness.
Availability
MPLAD18KP110CAE3 is available at Aetrix Electronics and suitable for aircraft avionics, automotive ECU power rails, industrial motor drive DC buses, and railway signaling interfaces requiring stable component supply across extended product lifecycles.
Supply support for MPLAD18KP110CAE3 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 ICs for aerospace, defense, and industrial markets.
The MPLAD series was developed specifically for high-power transient suppression in safety-critical platforms where standard TVS devices fail under multi-stroke lightning or automotive load dump conditions - emphasizing thermal robustness, lot traceability, and qualification to MIL-PRF-19500 and AEC-Q101.
FAQ
What is the clamping voltage of MPLAD18KP110CAE3 at its rated peak pulse current?
The MPLAD18KP110CAE3 has a maximum clamping voltage (VC) of 177 V when subjected to a 1000 A peak impulse current (IPP) under the standard 10/1000 μs waveform. This value is measured at 25°C and defines the upper voltage limit imposed on the protected circuit during worst-case surge events, ensuring downstream components remain within safe operating voltage margins.
Is MPLAD18KP110CAE3 qualified for automotive applications?
Yes, the MPLAD18KP110CAE3 is AEC-Q101 qualified and explicitly validated for automotive load dump protection. Its bidirectional construction, 18,000 W peak pulse power rating, and thermal resistance of 0.7 °C/W make it suitable for engine control unit (ECU) power rail protection in under-hood environments where temperature extremes and high-energy transients are common.
Does MPLAD18KP110CAE3 meet RTCA DO-160F lightning protection requirements?
Yes, the MPLAD18KP110CAE3 is certified for RTCA DO-160F Section 22 Waveform 4 Level 4 (6.4/69 μs) and Waveform 5A Level 4 (40/120 μs) at 25°C. These validations confirm its effectiveness in aircraft avionics power inputs against induced lightning transients, with full test data documented in Microsemi's RF01215 Rev B specification sheet.
What is the thermal resistance from junction to case for MPLAD18KP110CAE3?
The MPLAD18KP110CAE3 has a junction-to-case thermal resistance (RθJC) of 0.7 °C/W, measured under defined mounting conditions on FR4 with recommended pad layout. This low value enables efficient heat transfer from the silicon junction to the PCB copper plane or heatsink, supporting high-duty-cycle surge operation without thermal runaway.
How does the bidirectional construction of MPLAD18KP110CAE3 affect its circuit placement?
The bidirectional construction of MPLAD18KP110CAE3 eliminates polarity constraints during PCB layout - it can be placed across any two points requiring symmetrical transient suppression, such as AC signal lines or floating DC buses. Unlike unidirectional TVS diodes, no orientation check is needed, reducing assembly errors and enabling simplified routing in space-constrained avionics and railway signaling modules.
MPLAD18KP110CAE3 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):
- 110V
- Voltage - Breakdown (Min):
- 122V
- Voltage - Clamping (Max) @ Ipp:
- 177V
- Current - Peak Pulse (10/1000µs):
- 102A
- 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
MPLAD18KP110CAE3 FAQ
1.How can I place an order for MPLAD18KP110CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD18KP110CAE3 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 MPLAD18KP110CAE3 reliable?
The price and inventory of MPLAD18KP110CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD18KP110CAE3 is usually 5 days.
3.What payment methods are accepted for MPLAD18KP110CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD18KP110CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD18KP110CAE3?
MPLAD18KP110CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD18KP110CAE3 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 MPLAD18KP110CAE3?
For technical support, including MPLAD18KP110CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD18KP110CAE3 requirements.
6.How does Aetrix verify that MPLAD18KP110CAE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD18KP110CAE3 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 MPLAD18KP110CAE3 meets industry standards.
7.What is the process for return or replacement of MPLAD18KP110CAE3?
All MPLAD18KP110CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD18KP110CAE3, 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 MPLAD18KP110CAE3 part is unused and in its original packaging.
Return procedure for MPLAD18KP110CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD18KP110CAE3 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…
