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Microchip Technology MAPLAD18KP60CAE3
- Part No.:
- MAPLAD18KP60CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD18KP60CAE3.pdf
- Description:
- TVS DIODE 60VWM 96.8VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:5,763
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Product details
Overview
MAPLAD18KP60CAE3 from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace, automotive, and industrial systems. It delivers 18,000 W peak pulse power at 10/1000 μs, features a 60 V reverse standoff voltage (VWM), clamps to ≤96.8 V at 186 A peak impulse current (IPP), and meets RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MAPLAD18KP60CAE3 datasheet, MAPLAD18KP60CAE3 pinout, MAPLAD18KP60CAE3 application, or MAPLAD18KP60CAE3 equivalent, key selection criteria include bidirectional polarity, 60 V working voltage, low thermal resistance (RθJC = 0.7 °C/W), RoHS-compliant e3 plating, and qualification per AEC-Q101 and MIL-PRF-19500 screening options.
Technical Context
This TVS diode uses silicon avalanche technology to provide fast-response clamping against high-energy transients such as lightning-induced surges and automotive load dump events. Its metal-base package enables direct thermal coupling to heatsinks, supporting sustained operation under repetitive 0.05% duty-cycle impulses.
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 configuration), and provides pin-injection protection per RTCA/DO-160F Waveform 4 (Level 4) and Waveform 5A (Level 4 up to 36 V variants).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - Maximum continuous operating voltage before clamping begins; matches 48 V system rails with safety margin. |
| V(BR) min/max | 66.7–73.7 V - Breakdown initiates within this range at test current; ensures reliable turn-on above VWM. |
| VC @ IPP | ≤96.8 V at 186 A - Clamping voltage limits downstream IC stress during 10/1000 μs surge events. |
| PPP | 18,000 W - Peak pulse power handling capacity defines survivability under lightning-level energy. |
| RθJC | 0.7 °C/W - Low junction-to-case thermal resistance enables efficient heat transfer to PCB/heatsink. |
| Moisture Sensitivity | Level 1 per J-STD-020B - No dry pack required; supports standard SMT reflow without baking. |
| RoHS | e3 - Matte-tin plating compliant with EU RoHS Directive 2011/65/EU. |
Pinout & Package
The MAPLAD18KP60CAE3 uses a surface-mount PLAD package with metal base acting as cathode terminal for bidirectional operation. The device has two terminals: anode and cathode, both accessible via solder pads on opposite edges of the molded body. Polarity marking is not applied; orientation is defined by metal base placement (cathode side).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode Pad | Positive surge path input | Serves as one conduction path during positive transients; connects to protected line. |
| Cathode Pad (Metal Base) | Common reference / return path | Functions as shared terminal for both polarities; must be thermally anchored to copper pour or heatsink. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Protects AC-coupled or floating lines without polarity constraints; eliminates need for dual unidirectional devices. |
| 18 kW peak pulse rating | Withstands multi-stroke lightning surges per RTCA DO-160 Section 22, enabling aircraft-grade reliability. |
| Low RθJC (0.7 °C/W) | Enables >70 W steady-state dissipation at TC = 100°C when mounted per recommended pad layout. |
| AEC-Q101 qualified | Validated for automotive underhood applications including engine control units and battery management systems. |
| MIL-PRF-19500 upscreening option | Supports high-reliability programs requiring lot traceability, 3σ ID screening, and extended temperature testing. |
Applications
| Aerospace Avionics Power Input | Automotive Battery Management System |
|---|---|
Use Scenario: Protection of 28 V DC power inputs in flight control computers exposed to lightning-induced transients per DO-160F Section 22. IC Role / Device Role / Timing Role: Primary surge suppression device placed at board edge before DC-DC converters and microcontrollers. Use Value: Limits clamped voltage to ≤96.8 V during 186 A surges, preventing latch-up or damage to downstream 100 V-rated power ICs. | Use Scenario: Guarding BMS cell monitoring circuits connected across 12–48 V battery stacks during load dump events. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential sense lines to suppress common-mode transients induced by alternator switching. Use Value: Withstands 18,000 W pulses without degradation, maintaining accuracy of voltage/current sensing during repeated 12 V system transients. |
| Industrial Motor Drive Control Board | Railway Signaling Interface |
Use Scenario: Protecting isolated communication interfaces (RS-485, CAN) on motor drive controllers subjected to EFT and surge coupling from IGBT switching. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), absorbing residual energy before signal conditioning ICs. Use Value: Clamps sub-100 ns transients to safe levels while sustaining 186 A peak current-critical for preserving isolation barrier integrity. | Use Scenario: Shielding 60 V signaling lines in track-side electronic interlocking units from induced surges during nearby lightning strikes. IC Role / Device Role / Timing Role: Standoff-rated TVS deployed on field wiring entry points to meet EN 50121-4 immunity requirements. Use Value: Meets IEC 61000-4-5 Class 4 (42 Ω source) with ≤96.8 V clamping, ensuring relay coil drivers remain functional post-surge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ60CA | 600 W PPP rating, SMB package, RθJA ≈ 110 °C/W, no AEC-Q101 or DO-160 qualification | Consumer/industrial grade only; unsuitable for aerospace or automotive safety-critical use | Select when cost sensitivity outweighs reliability requirements and surge energy remains below 600 W. |
| SMCJ60CA | 1500 W PPP rating, SMC package, RθJA ≈ 40 °C/W, AEC-Q101 qualified but not DO-160 tested | Limited to automotive infotainment or non-safety ECUs; cannot meet DO-160 Section 22 multi-stroke validation | Choose for space-constrained automotive modules where 1500 W surge capacity suffices and full lightning compliance is not mandated. |
Compared with SMBJ60CA and SMCJ60CA, MAPLAD18KP60CAE3 provides 30× higher peak pulse power, certified DO-160F lightning resilience, and superior thermal performance-making it the sole option for mission-critical avionics and high-energy industrial surge environments.
Availability
MAPLAD18KP60CAE3 is available at Aetrix Electronics and suitable for aerospace avionics, automotive battery management systems, and industrial motor drive control boards requiring stable component supply across long production lifecycles.
Supply support for MAPLAD18KP60CAE3 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 analog, mixed-signal, and power semiconductors for aerospace, defense, communications, and industrial markets.
The PLAD family-including MAPLAD18KP60CAE3-is engineered specifically for high-energy transient suppression in safety-critical platforms where lightning, load dump, and ESD immunity are mandatory design requirements.
FAQ
What is the clamping voltage of MAPLAD18KP60CAE3 at its rated peak pulse current?
The MAPLAD18KP60CAE3 exhibits a maximum clamping voltage (VC) of 96.8 V at its rated peak impulse current (IPP) of 186 A under 10/1000 μs waveform conditions. This value is guaranteed per datasheet Figure 3 and ensures downstream circuitry remains within safe operating voltage limits during high-energy transients.
Is MAPLAD18KP60CAE3 qualified for automotive applications?
Yes, MAPLAD18KP60CAE3 is qualified per AEC-Q101 for automotive use. It undergoes stress testing including temperature cycling, humidity bias, and surge endurance-all verified per the standard. Its bidirectional construction and 60 V standoff make it suitable for 48 V battery architectures and BMS front-end protection.
Does MAPLAD18KP60CAE3 meet RTCA DO-160 lightning protection requirements?
Yes, MAPLAD18KP60CAE3 is explicitly validated for RTCA DO-160 Section 22 multi-stroke lightning testing. It achieves Level 4 pin-injection protection per Waveform 4 (6.4/69 μs) and supports secondary lightning protection per IEC 61000-4-5 across multiple source impedances-key for certified avionics installations.
What is the thermal resistance junction-to-case for MAPLAD18KP60CAE3?
The MAPLAD18KP60CAE3 has a junction-to-case thermal resistance (RθJC) of 0.7 °C/W, measured with case temperature controlled on a heatsink as specified in the datasheet. This low value enables effective heat extraction when the metal base is soldered to a large copper area or external heatsink.
How does the CA suffix in MAPLAD18KP60CAE3 indicate device polarity?
The "CA" suffix in MAPLAD18KP60CAE3 denotes bidirectional construction. Unlike unidirectional variants ending in "A", the CA version clamps symmetrically for both positive and negative transients-essential for protecting AC-coupled or floating signal paths without polarity concerns.
MAPLAD18KP60CAE3 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):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 96.8V
- Current - Peak Pulse (10/1000µs):
- 186A
- 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
MAPLAD18KP60CAE3 FAQ
1.How can I place an order for MAPLAD18KP60CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD18KP60CAE3 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 MAPLAD18KP60CAE3 reliable?
The price and inventory of MAPLAD18KP60CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD18KP60CAE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD18KP60CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD18KP60CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD18KP60CAE3?
MAPLAD18KP60CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD18KP60CAE3 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 MAPLAD18KP60CAE3?
For technical support, including MAPLAD18KP60CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD18KP60CAE3 requirements.
6.How does Aetrix verify that MAPLAD18KP60CAE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD18KP60CAE3 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 MAPLAD18KP60CAE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD18KP60CAE3?
All MAPLAD18KP60CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD18KP60CAE3, 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 MAPLAD18KP60CAE3 part is unused and in its original packaging.
Return procedure for MAPLAD18KP60CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD18KP60CAE3 Tags
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