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Microchip Technology MPLAD36KP30CAE3
- Part No.:
- MPLAD36KP30CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP30CAE3.pdf
- Description:
- TVS DIODE 30VWM 48.8VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:5,136
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Product details
Overview
MPLAD36KP30CAE3 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 30 V reverse standoff voltage (VWM), clamps transients to ≤48.8 V at 738 A peak pulse current (IPP), and meets RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MPLAD36KP30CAE3 datasheet, MPLAD36KP30CAE3 pinout, MPLAD36KP30CAE3 application, or MPLAD36KP30CAE3 equivalent, this device is selected for secondary lightning protection per IEC 61000-4-5 (42 Ω, 12 Ω, and 2 Ω source impedances), pin-injection immunity per RTCA/DO-160F Waveform 4 (Level 4 up to 300 V), and ESD/EFT robustness per IEC 61000-4-2/4-4.
Technical Context
This TVS diode operates in bidirectional avalanche breakdown mode with symmetrical clamping behavior across both polarities. Its low thermal resistance (RθJC = 1.0 °C/W) enables rapid heat dissipation during repetitive surges, and its void-free UL94V-0 epoxy package supports reliable operation from –55 °C to +150 °C junction temperature.
It is characterized by a 30 V reverse standoff voltage (VWM), 33.3–36.8 V minimum breakdown voltage (V(BR)) at 5 mA, and a maximum clamping voltage (VC) of 48.8 V at 738 A IPP under 10/1000 μs waveform - enabling precise coordination with downstream circuitry without overvoltage stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - sustains aircraft-grade lightning surges without failure |
| Reverse Standoff Voltage (VWM) | 30 V - sets maximum continuous operating voltage before conduction begins |
| Clamping Voltage (VC) | ≤48.8 V @ 738 A - limits transient voltage seen by protected ICs or sensors |
| Breakdown Voltage (V(BR)) | 33.3–36.8 V @ 5 mA - defines onset of controlled avalanche conduction |
| Thermal Resistance (RθJC) | 1.0 °C/W - enables efficient heat transfer to PCB copper or heatsink |
| Surge Rating (IEC 61000-4-5) | Class 1–5 with 42 Ω, 12 Ω, and 2 Ω source impedance - validated for multiple system-level test configurations |
| Moisture Sensitivity Level | Level 1 per J-STD-020B - no dry pack required, simplifies SMT handling and storage |
Pinout & Package
Package: PLAD (Plastic Leaded Anode/Cathode) - surface-mount, low-profile thermoset epoxy case with metal base cathode terminal; dimensions: 12.32 × 10.54 × 5.08 mm (L × W × H); RoHS-compliant matte-tin plating; weight ≈ 1.8 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top side) | Transient current entry point (bidirectional) | Accepts positive or negative surge polarity; symmetric conduction path |
| Cathode (metal base) | Transient current return path | Primary thermal interface - must be soldered to large copper pour or heatsink for RθJC = 1.0 °C/W performance |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional surge suppression | Enables single-device protection of AC lines or differential buses without polarity constraints |
| RTCA DO-160F Waveform 4 compliance (Level 4) | Withstands 6.4/69 μs pin-injection transients up to 300 V - critical for avionics I/O protection |
| AEC-Q101 qualified | Validated for automotive under-hood and powertrain applications requiring reliability under thermal cycling and vibration |
| 3σ lot norm screening on standby current (ID) | Ensures consistent leakage performance (<10 μA @ 30 V) across production lots for low-power system integrity |
| MIL-PRF-19500 upscreening option | Supports high-reliability programs requiring military-grade traceability and extended environmental testing |
Applications
| Aerospace Avionics I/O Protection | Automotive Load Dump Suppression |
|---|---|
Use Scenario: Protecting ARINC 429, MIL-STD-1553, or discrete sensor inputs in flight control computers from induced lightning transients. IC Role / Device Role / Timing Role: Primary secondary surge clamp at board-level interface, coordinated with upstream filters and isolation. Use Value: Meets RTCA DO-160 Section 22 multi-stroke lightning (Waveform 3, 4, 5A) while maintaining <10 μA leakage at 30 V system rail. |
Use Scenario: Safeguarding engine control unit (ECU) CAN transceivers and analog sensor front-ends during 12 V battery load dump events. IC Role / Device Role / Timing Role: Fast-response shunt protector placed directly at connector entry, clamping within <100 ps to limit voltage overshoot. Use Value: Clamps to ≤48.8 V at 738 A, preventing damage to 3.3 V/5 V logic and ensuring AEC-Q100 Grade 0 compatibility. |
| Industrial DC Power Rail Protection | Railway Signaling Interface Protection |
Use Scenario: Securing 24 V or 48 V PLC backplane power inputs against switching transients and EFT bursts in factory automation cabinets. IC Role / Device Role / Timing Role: High-energy crowbar element absorbing >36 kW surges without degradation over 1,000+ cycles. Use Value: 36,000 W PPP rating and 1.0 °C/W RθJC enable sustained operation under repetitive 0.05% duty cycle surges per IEC 61000-4-4. |
Use Scenario: Shielding track-side signaling electronics (e.g., axle counter interfaces) from induced surges due to nearby traction current switching. IC Role / Device Role / Timing Role: Bidirectional clamping device on 60 V nominal signaling lines, compliant with EN 50121-4 for railway EMC. Use Value: Validated for IEC 61000-4-5 Class 4 (42 Ω source) up to 300 V, matching EN 50121-4 surge test profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30CA | Lower PPP (600 W), smaller SMB package, higher RθJA (50 °C/W), no DO-160 qualification | Suitable for consumer or industrial low-energy ESD/EFT only - not for lightning or load dump | Select when cost and board space constrain requirements, and surge energy remains below 100 J |
| SMCJ33CA | Higher VWM (33 V), same 36 kW PPP, but larger SMC package (14.2 × 8.6 mm), no AEC-Q101 or DO-160 data | Used in telecom power supplies where footprint allows and aerospace certification is not required | Choose if 33 V standoff better matches system margin, and qualification to RTCA/DO-160 is unnecessary |
Compared with SMBJ30CA and SMCJ33CA, the MPLAD36KP30CAE3 uniquely combines 36 kW surge capacity, DO-160F Waveform 4 Level 4 compliance, AEC-Q101 qualification, and 1.0 °C/W junction-to-case thermal resistance - making it the only option qualified for high-reliability aerospace and automotive safety-critical power interfaces.
Availability
MPLAD36KP30CAE3 is available at Aetrix Electronics and suitable for aerospace avionics, automotive powertrain, and industrial DC power rail protection requiring stable component supply, long-term lifecycle support, and certified surge performance.
Supply support for MPLAD36KP30CAE3 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 solutions for aerospace, defense, and industrial markets.
The MPLAD36KP30CAE3 belongs to Microsemi's high-power PLAD-series TVS family, engineered specifically for mission-critical surge protection in environments demanding DO-160, AEC-Q101, and IEC 61000-4-x compliance.
FAQ
What is the clamping voltage of MPLAD36KP30CAE3 at its rated peak pulse current?
The MPLAD36KP30CAE3 has a maximum clamping voltage (VC) of 48.8 V at 738 A peak pulse current (IPP) under the standard 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and ensures downstream 3.3 V or 5 V ICs remain within safe absolute maximum ratings during surge events.
Is MPLAD36KP30CAE3 qualified for automotive applications?
Yes, the MPLAD36KP30CAE3 is AEC-Q101 qualified, confirming its suitability for automotive powertrain and chassis applications. It undergoes stress testing including temperature cycling, mechanical shock, and humidity bias life - validating reliability under under-hood thermal and vibration conditions where the MPLAD36KP30CAE3 operates continuously from –55 °C to +150 °C.
Does MPLAD36KP30CAE3 meet RTCA DO-160 lightning protection standards?
Yes, the MPLAD36KP30CAE3 is explicitly validated for RTCA DO-160 Section 22 multi-stroke lightning testing. It achieves Level 4 pin-injection immunity per Waveform 4 (6.4/69 μs) up to 300 V and supports full Waveform 3 and 5A compliance - making it suitable for primary and secondary lightning protection in commercial and military avionics systems.
What is the thermal resistance and recommended mounting for MPLAD36KP30CAE3?
The MPLAD36KP30CAE3 has a junction-to-case thermal resistance (RθJC) of 1.0 °C/W. To achieve this rating, the metal cathode base must be soldered to a minimum 10 cm² copper pad (2 oz Cu) or attached to an external heatsink. The datasheet specifies pad layout dimensions (11.94 × 5.85 mm) and requires void-free reflow to ensure thermal and mechanical integrity of the MPLAD36KP30CAE3 assembly.
How does the bidirectional construction of MPLAD36KP30CAE3 affect its use in AC or differential circuits?
The bidirectional construction of MPLAD36KP30CAE3 provides symmetrical clamping for both positive and negative transients, eliminating polarity concerns in AC signal lines, RS-485 buses, or transformer-coupled interfaces. Unlike unidirectional TVS diodes, the MPLAD36KP30CAE3 does not require series blocking diodes or orientation-aware layout - simplifying design and improving fault tolerance in bidirectional communication or power paths.
MPLAD36KP30CAE3 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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.8V
- Current - Peak Pulse (10/1000µs):
- 738A
- 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
MPLAD36KP30CAE3 FAQ
1.How can I place an order for MPLAD36KP30CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP30CAE3 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 MPLAD36KP30CAE3 reliable?
The price and inventory of MPLAD36KP30CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP30CAE3 is usually 5 days.
3.What payment methods are accepted for MPLAD36KP30CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP30CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP30CAE3?
MPLAD36KP30CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP30CAE3 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 MPLAD36KP30CAE3?
For technical support, including MPLAD36KP30CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP30CAE3 requirements.
6.How does Aetrix verify that MPLAD36KP30CAE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP30CAE3 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 MPLAD36KP30CAE3 meets industry standards.
7.What is the process for return or replacement of MPLAD36KP30CAE3?
All MPLAD36KP30CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP30CAE3, 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 MPLAD36KP30CAE3 part is unused and in its original packaging.
Return procedure for MPLAD36KP30CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP30CAE3 Tags
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