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Microchip Technology MPLAD36KP36CAE3
- Part No.:
- MPLAD36KP36CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP36CAE3.pdf
- Description:
- TVS DIODE 36VWM 58.1VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:8,402
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Product details
Overview
MPLAD36KP36CAE3 from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace and automotive systems. It delivers 36,000 W peak pulse power at 10/1000 μs, clamps transients to ≤58.1 V at 620 A, and features a 36 V reverse standoff voltage (VWM) with ±5% breakdown tolerance (40.0–44.2 V). It is qualified to AEC-Q101 and meets RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MPLAD36KP36CAE3 datasheet, MPLAD36KP36CAE3 pinout, MPLAD36KP36CAE3 application, or MPLAD36KP36CAE3 equivalent, key selection criteria include bidirectional clamping capability, 36 kW surge rating, 36 V working voltage compatibility with 24 V automotive and avionics bus systems, thermal resistance of 1.0 °C/W junction-to-case, and RoHS-compliant matte-tin plating per MIL-STD-750 Method 2026.
Technical Context
This device operates as a silicon avalanche diode-based TVS, leveraging controlled avalanche breakdown to clamp transient overvoltages across protected lines. Its bidirectional construction enables symmetrical clamping on AC-coupled or differential signal paths without polarity sensitivity.
It is characterized for IEC 61000-4-5 (42 Ω, 12 Ω, and 2 Ω source impedances), RTCA DO-160F Waveform 4 (Level 4 up to 400 V VWM) and Waveform 5A (Level 4 up to 78 V VWM), and ESD/EFT immunity per IEC 61000-4-2/4-4. Thermal design relies on low RθJC (1.0 °C/W) and metal-base mounting for heat conduction into PCB copper or heatsink.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - supports repeated lightning-induced surges without degradation when mounted per recommended pad layout |
| Reverse Standoff Voltage (VWM) | 36 V - maximum continuous DC or RMS operating voltage before clamping initiates; matches nominal 24 V system rails with margin |
| Breakdown Voltage (V(BR)) | 40.0–44.2 V @ 5 mA - defines onset of avalanche conduction; tight 5% tolerance ensures predictable turn-on |
| Max Clamping Voltage (VC) | 58.1 V @ 620 A - limits downstream component stress during worst-case surge; <1.6× VWM ratio confirms efficient suppression |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables direct thermal path to PCB ground plane or heatsink; critical for sustained multi-pulse operation |
| Moisture Sensitivity Level | Level 1 per J-STD-020B - no dry pack or bake required prior to reflow, simplifying SMT assembly |
| RoHS Compliance | e3 suffix - matte-tin plating compliant with EU RoHS Directive 2011/65/EU and lead-free reflow profiles |
Pinout & Package
Package: PLAD (Plastic Low-profile Avalanche Diode) - void-free UL94V-0 epoxy body with metal base for thermal conduction; dimensions 12.32 × 10.54 × 3.68 mm (L × W × H); weight ~1.7–2.0 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (Dual-side terminals) | Bidirectional avalanche junction | Two symmetric metallized pads on opposite edges of metal base - no polarity marking required; both terminals function identically under positive/negative transients |
| Metal Base (Bottom) | Thermal & electrical common node | Electrically connected to both anode and cathode terminals; must be soldered to large copper area for thermal dissipation and low-inductance return path |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping architecture | Enables single-device protection of AC lines, differential buses (e.g., RS-485, CAN), or ungrounded systems without polarity concerns |
| 3σ lot norm screening on standby current (ID) | Ensures consistent leakage performance (<10 μA @ 36 V) across production lots, critical for low-power always-on circuits |
| AEC-Q101 qualification | Validates reliability for automotive under-hood applications including temperature cycling, humidity, and mechanical shock |
| RTCA DO-160F Section 22 compliance | Meets aircraft lightning-induced transient immunity requirements for multi-stroke events - verified via waveform 4 and 5A testing |
| Low RθJC (1.0 °C/W) | Supports >1000 surge cycles at 0.05% duty factor when mounted on FR4 with recommended 11.94 × 5.85 mm pad layout |
Applications
| Aerospace Avionics Power Bus Protection | Automotive 24 V Load Dump Suppression |
|---|---|
Use Scenario: Protecting ARINC 429 data lines and 28 V DC power inputs in flight control computers against lightning-induced transients per DO-160F Section 22. IC Role / Device Role / Timing Role: Bidirectional TVS placed at board edge to clamp common-mode surges before entering EMI filters and DC-DC converters. Use Value: Withstands ≥1000 multi-stroke lightning pulses at 620 A while maintaining clamping below 58.1 V - prevents latch-up or burnout in downstream ASICs. | Use Scenario: Safeguarding engine control unit (ECU) power inputs during alternator load dump events in commercial trucks and off-highway vehicles. IC Role / Device Role / Timing Role: Primary surge shunt mounted directly at connector entry point, paralleled with bulk capacitance to absorb 36 kW energy within 1 ms. Use Value: 36 V VWM aligns with 24 V nominal bus; clamping at 58.1 V ensures MCU and sensor ICs (rated to 60 V) remain within safe operating area. |
| Industrial RS-485 Transceiver Protection | Railway Signaling Interface Protection |
Use Scenario: Securing long-haul RS-485 communication links in factory automation systems exposed to EFT and induced surges from motor drives. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential pair (A/B) and shield, referenced to local ground plane. Use Value: Symmetric clamping eliminates need for dual unidirectional devices; 58.1 V VC limits transceiver stress during 4 kV EFT bursts per IEC 61000-4-4. | Use Scenario: Protecting 70 V DC signaling interfaces in European railway signaling cabinets against indirect lightning coupling per EN 50121-4. IC Role / Device Role / Timing Role: Secondary surge protector installed after primary gas discharge tube (GDT), handling residual energy with fast response (<5 ns). Use Value: 36 kW rating absorbs residual 10/1000 μs surges after GDT crowbarring; 36 V VWM allows use in 48–72 V nominal rail systems with derating margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA | 600 W PPP rating (vs. 36,000 W); DO-214AA package; 1.5× higher RθJA (50 °C/W vs. 1.0 °C/W) | Limited to low-energy ESD/EFT; unsuitable for lightning or load dump | Select only for cost-sensitive consumer electronics where surge energy <100 J |
| SMCJ36CA | 1500 W PPP rating; DO-214AB package; RθJC ≈ 2.5 °C/W; no AEC-Q101 or DO-160 qualification | Acceptable for industrial I/O protection but not certified for aerospace or automotive safety-critical systems | Choose when DO-160/AEC-Q101 compliance is not required and surge energy ≤500 J |
Compared with SMBJ36CA and SMCJ36CA, the MPLAD36KP36CAE3 provides 24× and 24× higher peak pulse power respectively, certified qualification for aviation and automotive environments, and a thermally optimized metal-base package enabling reliable multi-stroke operation - making it the sole option for mission-critical 36 kW surge handling.
Availability
MPLAD36KP36CAE3 is available at Aetrix Electronics and suitable for aerospace avionics, heavy-duty automotive ECUs, industrial RS-485 networks, and railway signaling systems requiring stable component supply across extended product lifecycles.
Supply support for MPLAD36KP36CAE3 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 RF semiconductors for aerospace, defense, and industrial markets.
The MPLAD series targets high-energy transient suppression in safety-critical platforms, emphasizing DO-160F, AEC-Q101, and IEC 61000-4-5 compliance with thermally robust surface-mount packaging.
FAQ
What is the clamping voltage of MPLAD36KP36CAE3 at its rated peak pulse current?
The MPLAD36KP36CAE3 has a maximum clamping voltage (VC) of 58.1 V at 620 A peak pulse current under 10/1000 μs waveform conditions. This value is measured across the device terminals with proper PCB thermal management per the recommended pad layout. The clamping voltage remains stable across multiple surge events due to low thermal resistance (1.0 °C/W) and robust silicon die construction. MPLAD36KP36CAE3 maintains this specification over its full operating temperature range of –55°C to +150°C.
Is MPLAD36KP36CAE3 suitable for automotive under-hood applications?
Yes, MPLAD36KP36CAE3 is qualified to AEC-Q101 and rated for operation from –55°C to +150°C junction temperature, making it suitable for under-hood automotive environments. Its 36 kW surge rating handles alternator load dump transients, and its bidirectional configuration protects differential buses like CAN FD and LIN. The device undergoes temperature cycling, humidity, and mechanical shock testing per AEC-Q101 requirements. MPLAD36KP36CAE3 also supports moisture sensitivity Level 1, eliminating bake steps before reflow soldering in high-volume automotive manufacturing.
How does the PLAD package of MPLAD36KP36CAE3 improve thermal performance compared to standard SMC packages?
The PLAD package of MPLAD36KP36CAE3 uses a metal base integrated into the bottom of the molded body, providing a direct thermal conduction path from the silicon die to the PCB copper pour or external heatsink. This achieves a junction-to-case thermal resistance of just 1.0 °C/W - over 50× lower than typical SMC packages (~50 °C/W junction-to-ambient). The metal base also reduces parasitic inductance, improving high-frequency surge response. MPLAD36KP36CAE3 requires no thermal vias or complex stack-ups; a simple 11.94 × 5.85 mm copper pad meets thermal requirements per Microsemi's layout guidelines.
Does MPLAD36KP36CAE3 meet RTCA DO-160F Section 22 lightning test requirements?
Yes, MPLAD36KP36CAE3 is specifically validated for RTCA DO-160F Section 22 multi-stroke lightning testing, including Waveform 4 (6.4/69 μs) at Level 4 and Waveform 5A (40/120 μs) at Level 4 for 36 V VWM devices. It passes all stroke counts and repetition rates defined in the standard when mounted per Microsemi's recommended PCB layout and thermal interface. The device's 36,000 W peak pulse power rating and sub-5 ns response time ensure compliance. MPLAD36KP36CAE3 documentation references MicroNote 132 for temperature derating guidance during multi-stroke events.
What is the significance of the 'CA' and 'e3' suffixes in MPLAD36KP36CAE3?
The 'CA' suffix in MPLAD36KP36CAE3 denotes bidirectional construction, enabling symmetrical clamping on both polarities without polarity marking. The 'e3' suffix indicates RoHS-compliant matte-tin plating per JEDEC J-STD-020B Level 1 - meaning no dry pack or baking is required before lead-free reflow. Both suffixes are integral to the device's identity: CA defines electrical behavior, e3 defines material compliance. MPLAD36KP36CAE3 is not interchangeable with unidirectional (A-suffix) or non-RoHS (blank-suffix) variants due to functional and regulatory differences.
MPLAD36KP36CAE3 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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 620A
- 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
MPLAD36KP36CAE3 FAQ
1.How can I place an order for MPLAD36KP36CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP36CAE3 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 MPLAD36KP36CAE3 reliable?
The price and inventory of MPLAD36KP36CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP36CAE3 is usually 5 days.
3.What payment methods are accepted for MPLAD36KP36CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP36CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP36CAE3?
MPLAD36KP36CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP36CAE3 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 MPLAD36KP36CAE3?
For technical support, including MPLAD36KP36CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP36CAE3 requirements.
6.How does Aetrix verify that MPLAD36KP36CAE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP36CAE3 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 MPLAD36KP36CAE3 meets industry standards.
7.What is the process for return or replacement of MPLAD36KP36CAE3?
All MPLAD36KP36CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP36CAE3, 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 MPLAD36KP36CAE3 part is unused and in its original packaging.
Return procedure for MPLAD36KP36CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP36CAE3 Tags
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