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Microchip Technology MPLAD36KP64CAE3
- Part No.:
- MPLAD36KP64CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP64CAE3.pdf
- Description:
- TVS DIODE 64VWM 103VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:4,807
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Product details
Overview
MPLAD36KP64CAE3 from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace, automotive, and industrial power systems. It delivers 36 kW peak pulse power at 10/1000 μs, features a 64 V reverse standoff voltage (VWM), clamps to ≤103.0 V at 350 A peak pulse current (IPP), and operates across –55°C to +150°C junction temperature.
For engineers reviewing the MPLAD36KP64CAE3 datasheet, MPLAD36KP64CAE3 pinout, MPLAD36KP64CAE3 application, or MPLAD36KP64CAE3 equivalent, key selection criteria include its bidirectional polarity, low thermal resistance (RθJC = 1.0 °C/W), DO-160F Waveform 4 & 5 compliance, IEC 61000-4-5 Class 4/5 secondary lightning capability, and RoHS-compliant e3 termination.
Technical Context
This TVS diode uses silicon avalanche technology to provide fast-response clamping against high-energy transients including lightning-induced surges, load dump events, and EFT/ESD pulses. Its void-free thermosetting epoxy package meets UL94V-0 and enables direct mounting on FR4 PCBs with optimized thermal pad layout.
It is characterized for bidirectional operation with symmetrical breakdown (V(BR) = 71.1–78.6 V @ 5 mA), maximum clamping voltage VC = 103.0 V at IPP = 350 A, and standby leakage ID ≤10 μA at VWM = 64 V. Thermal performance is validated under controlled case temperature (TC) and junction-to-ambient (RθJA = 50 °C/W) conditions per MIL-STD-750 test methods.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - sustains multi-stroke lightning surges per RTCA DO-160 Section 22 without degradation |
| Reverse Standoff Voltage (VWM) | 64 V - maximum continuous DC or peak AC voltage the device blocks before clamping begins |
| Breakdown Voltage (V(BR)) | 71.1–78.6 V @ 5 mA - ensures reliable avalanche initiation margin above VWM for robust turn-on threshold |
| Clamping Voltage (VC) | ≤103.0 V @ IPP = 350 A - limits downstream circuit voltage stress during worst-case surge events |
| Peak Pulse Current (IPP) | 350 A @ 10/1000 μs - quantifies maximum single-pulse surge current the device safely diverts |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to heatsink or copper pour, critical for repetitive surge duty cycles |
| Operating Temperature Range | –55°C to +150°C - supports deployment in engine bays, avionics bays, and industrial control enclosures |
Pinout & Package
Package: PLAD (Plastic Leaded Anode/Cathode) - surface-mount, low-profile, void-free thermosetting epoxy body with metal base cathode contact; dimensions: 12.32 × 10.54 × 5.08 mm (L × W × H); weight ≈ 1.7–2.0 g; RoHS-compliant matte-tin plating (e3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top side metallization) | Surge current entry point (bidirectional) | Provides symmetrical conduction path for positive and negative transients; no polarity marking required for CA variants |
| Cathode (metal base underside) | Surge current return path / thermal interface | Directly contacts PCB copper pour or heatsink for lowest possible RθJC; serves as primary thermal dissipation surface |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction (CA suffix) | Enables single-device protection of AC lines or differential buses without external polarity management |
| DO-160F Waveform 4 & 5 compliance | Validated for aircraft pin-injection immunity up to Level 5 (6.4/69 μs and 40/120 μs) at 64 V standoff |
| IEC 61000-4-5 Class 4/5 support | Meets secondary lightning protection requirements with 2 Ω, 12 Ω, and 42 Ω source impedances |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints-ready for standard SMT reflow (260°C, 10 s) |
| AEC-Q101 qualified | Validated for automotive under-hood applications including load dump and ISO 7637-2 pulse testing |
Applications
| Aerospace Avionics Power Bus Protection | Automotive 12 V/24 V Load Dump Suppression |
|---|---|
Use Scenario: Protecting ARINC 429 data lines and 28 V DC power rails in flight control computers against lightning-induced surges per DO-160 Section 22. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed at board-level input connector to shunt multi-kW transients before reaching regulators and FPGAs. Use Value: Enables compliance with Level 4/5 pin injection (Waveform 4/5) and Class 5 lightning (42 Ω source) without derating or parallel devices. |
Use Scenario: Safeguarding engine control unit (ECU) power inputs during alternator load dump events (ISO 7637-2 Pulse 5a/b) in commercial vehicles. IC Role / Device Role / Timing Role: Primary surge suppression device mounted directly at battery feedthrough, clamping within <5 ns to limit voltage overshoot. Use Value: Withstands 350 A peak current and 36 kW pulse energy while maintaining VWM = 64 V compatibility with 24 V nominal systems. |
| Industrial Motor Drive DC Link Protection | Railway Signaling Interface Protection |
Use Scenario: Shielding IGBT gate drivers and bus voltage monitors in variable-frequency drives from switching-induced transients and ground bounce. IC Role / Device Role / Timing Role: Low-inductance TVS placed across DC link capacitor terminals to absorb commutation spikes and regenerative energy surges. Use Value: RθJC = 1.0 °C/W and 150°C max TJ allow sustained operation in enclosed cabinets with limited airflow and repeated surge duty. |
Use Scenario: Securing Ethernet-over-coax and RS-485 signaling ports in trackside signaling controllers exposed to induced lightning surges per EN 50121-4. IC Role / Device Role / Timing Role: Bidirectional TVS integrated into front-end protection network alongside GDTs and common-mode chokes for balanced line protection. Use Value: Symmetrical clamping (±103.0 V) preserves signal integrity on differential pairs while meeting IEC 61000-4-5 Class 4 (2 Ω source) requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ64CA | Lower PPP (400 W), smaller SMA package, RθJA = 110 °C/W, VWM = 64 V, VC = 103 V @ 38.9 A | Suitable for low-energy consumer electronics; insufficient for DO-160F Level 5 or IEC 61000-4-5 Class 4/5 | Select only for cost-sensitive, non-aerospace/non-automotive designs with <1 kA surge exposure |
| Vishay SM8S64A | Higher PPP (6600 W), DO-218AB package, unidirectional only, VWM = 64 V, VC = 104 V @ 192 A | Lacks bidirectional symmetry; requires dual-device configuration for AC/differential protection | Prefer when unidirectional clamping suffices and board space allows larger DO-218AB footprint |
Compared with MPLAD36KP64CAE3, SMAJ64CA offers lower cost but cannot meet multi-stroke lightning standards, while SM8S64A provides higher pulse rating than standard TVS diodes yet lacks bidirectional capability and aerospace qualification-making MPLAD36KP64CAE3 the sole choice for certified DO-160F and AEC-Q101-compliant bidirectional surge suppression.
Availability
MPLAD36KP64CAE3 is available at Aetrix Electronics and suitable for aerospace avionics, automotive ECU power systems, and industrial motor drive protection requiring stable component supply, long-term lifecycle assurance, and traceable high-reliability sourcing.
Supply support for MPLAD36KP64CAE3 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, mixed-signal, and radiation-hardened ICs for aerospace, defense, and industrial markets.
The MPLAD series belongs to Microsemi's high-power surface-mount TVS portfolio, engineered specifically for DO-160F-compliant lightning protection and AEC-Q101-qualified automotive surge resilience in harsh thermal and electrical environments.
FAQ
What is the clamping voltage of MPLAD36KP64CAE3 at its rated peak pulse current?
The MPLAD36KP64CAE3 has a maximum clamping voltage (VC) of 103.0 V when subjected to its rated peak pulse current of 350 A under 10/1000 μs waveform conditions. This value is measured across the device terminals during standardized surge testing and defines the upper voltage limit imposed on protected circuits during worst-case transients. The MPLAD36KP64CAE3 maintains this clamping performance consistently across its operating temperature range.
Is MPLAD36KP64CAE3 suitable for bidirectional AC line protection?
Yes, MPLAD36KP64CAE3 is explicitly designed for bidirectional surge suppression, indicated by the "CA" suffix in its part number. Its symmetrical breakdown (71.1–78.6 V in both directions) and matched clamping behavior enable effective protection of AC-coupled interfaces, differential data lines, and floating power rails without polarity concerns. The MPLAD36KP64CAE3 does not require external diode pairing or orientation-specific placement.
Does MPLAD36KP64CAE3 comply with automotive qualification standards?
Yes, MPLAD36KP64CAE3 is tested and qualified to AEC-Q101 for discrete semiconductors, validating its reliability in automotive under-hood environments. It meets requirements for temperature cycling, humidity testing, mechanical shock, and surge immunity-including load dump simulation (ISO 7637-2 Pulse 5). The MPLAD36KP64CAE3 is specified for operation from –55°C to +150°C, supporting engine bay and transmission control module deployments.
What is the thermal resistance from junction to case for MPLAD36KP64CAE3?
The junction-to-case thermal resistance (RθJC) of MPLAD36KP64CAE3 is 1.0 °C/W, measured under defined test conditions with the metal base (cathode) mounted to a thermally controlled heatsink. This low value reflects the device's optimized thermal path through its metal-base PLAD package and enables effective heat dissipation during repetitive surge events. Proper PCB copper pour design is essential to realize this RθJC in actual application.
Can MPLAD36KP64CAE3 be used in DO-160F Section 22 lightning protection designs?
Yes, MPLAD36KP64CAE3 is specifically validated for RTCA DO-160F Section 22 multi-stroke lightning testing, including Waveform 4 (6.4/69 μs) and Waveform 5A (40/120 μs) pin injection up to Level 5. Its 36 kW peak pulse power rating, fast response (<5 ns), and bidirectional clamping make it suitable for primary and secondary lightning protection zones in aircraft avionics. The MPLAD36KP64CAE3 meets these requirements without derating when mounted per recommended pad layout.
MPLAD36KP64CAE3 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):
- 64V
- Voltage - Breakdown (Min):
- 71.1V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 350A
- Power - Peak Pulse:
- 36000W (36kW)
- 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
MPLAD36KP64CAE3 FAQ
1.How can I place an order for MPLAD36KP64CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP64CAE3 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 MPLAD36KP64CAE3 reliable?
The price and inventory of MPLAD36KP64CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP64CAE3 is usually 5 days.
3.What payment methods are accepted for MPLAD36KP64CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP64CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP64CAE3?
MPLAD36KP64CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP64CAE3 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 MPLAD36KP64CAE3?
For technical support, including MPLAD36KP64CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP64CAE3 requirements.
6.How does Aetrix verify that MPLAD36KP64CAE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP64CAE3 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 MPLAD36KP64CAE3 meets industry standards.
7.What is the process for return or replacement of MPLAD36KP64CAE3?
All MPLAD36KP64CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP64CAE3, 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 MPLAD36KP64CAE3 part is unused and in its original packaging.
Return procedure for MPLAD36KP64CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP64CAE3 Tags
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