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Microchip Technology MPLAD36KP300CAE3
- Part No.:
- MPLAD36KP300CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP300CAE3.pdf
- Description:
- TVS DIODE 300VWM 483VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:8,315
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Product details
Overview
MPLAD36KP300CAE3 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, clamps at ≤483 V under 75 A peak impulse current, and features a 300 V reverse standoff voltage (VWM) with ±5% breakdown tolerance (333–369 V). Its low-profile thermoset epoxy package enables robust lightning protection per RTCA DO-160F Waveform 4 Level 5 and IEC 61000-4-5 Class 5 (short distance).
For engineers reviewing the MPLAD36KP300CAE3 datasheet, MPLAD36KP300CAE3 pinout, MPLAD36KP300CAE3 application, or MPLAD36KP300CAE3 equivalent, key selection criteria include bidirectional clamping capability, 300 V working voltage alignment with 280–300 V DC bus systems, thermal resistance of 1.0 °C/W junction-to-case, RoHS-compliant matte-tin terminations, and verified compliance with AEC-Q101 and MIL-PRF-19500 screening options.
Technical Context
This device operates as a silicon avalanche diode-based TVS, leveraging controlled avalanche breakdown to divert transients away from sensitive circuitry. Its bidirectional construction ensures symmetrical clamping for AC-coupled or floating signal/power lines, with sub-5 ns response time enabling effective suppression of fast-rising ESD and RFI-induced spikes.
Thermal design is optimized via direct metal-base cathode contact (case = cathode), achieving 1.0 °C/W junction-to-case resistance when mounted on a heatsink. The 36 kW rating is validated at ≤0.05% duty cycle per IEC 61000-4-5 test conditions, with derating required above 100 °C case temperature per Figure 3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - sustains multi-stroke lightning surges without degradation |
| Reverse Standoff Voltage (VWM) | 300 V - maximum continuous DC or RMS AC voltage before clamping initiates |
| Breakdown Voltage (V(BR)) | 333–369 V @ 5 mA - defines minimum clamping threshold under standardized test current |
| Max Clamping Voltage (VC) | 483 V @ 75 A - limits downstream voltage stress during worst-case surge events |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to PCB copper or external heatsink |
| Moisture Sensitivity Level | Level 1 (IPC/JEDEC J-STD-020B) - no dry-pack or baking required prior to reflow |
| RoHS Compliance | e3 suffix - lead-free matte-tin plating compliant with EU Directive 2011/65/EU |
Pinout & Package
Package: PLAD (Plastic Low-Profile Avalanche Diode) - void-free UL94V-0 thermosetting epoxy body with metal base cathode termination; dimensions 12.32 × 10.54 × 5.08 mm (L × W × H); weight ~1.85 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Top Surface (Anode) | Anode terminal | Connected to protected line; forms avalanche junction with cathode base |
| Metal Base (Cathode) | Cathode terminal | Primary thermal path and electrical return; must be soldered to large copper pour or heatsink |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping symmetry | Enables protection of AC lines, differential buses, or floating supplies without polarity constraints |
| RTCA DO-160F Waveform 4 Level 5 compliance | Withstands 6.4/69 μs pin-injection transients up to 300 V VWM devices - critical for avionics interface protection |
| AEC-Q101 qualification | Validated reliability for automotive under-hood and powertrain applications including load dump immunity |
| 1.0 °C/W junction-to-case thermal resistance | Supports sustained surge handling when mounted on ≥2 oz copper with thermal vias to internal planes |
| MIL-PRF-19500 upscreening option | Enables high-reliability deployment in military/aerospace programs requiring lot traceability and 3σ ID screening |
Applications
| Aircraft Avionics Interface Protection | Automotive Power Distribution Module |
|---|---|
|
Use Scenario: Protecting ARINC 429 data lines and sensor inputs against induced lightning transients in flight control systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed at connector entry point to clamp common-mode surges before reaching level-shifting receivers. Use Value: Meets RTCA DO-160F Section 22 multi-stroke lightning requirements with <5 ns response, limiting voltage to ≤483 V during 6.4/69 μs waveform injection. |
Use Scenario: Safeguarding 24 V DC power rails in commercial vehicle battery management units exposed to ISO 7637-2 load dump pulses. IC Role / Device Role / Timing Role: Primary surge shunt across main fuse output, absorbing up to 36 kW energy while holding rail voltage below 483 V. Use Value: Withstands 12 V source impedance Class 4 surges (per IEC 61000-4-5) up to 280 V VWM variants - this 300 V version covers extended 28–32 V nominal systems. |
| Industrial Motor Drive DC Bus | Railway Signaling Power Input |
|
Use Scenario: Secondary protection on 300 V DC intermediate bus of variable-frequency drives subject to regenerative braking spikes and grid switching transients. IC Role / Device Role / Timing Role: Parallel-mounted TVS across bus capacitors to clamp overshoot exceeding 300 V operating range. Use Value: 36 kW rating handles repetitive 10/1000 μs surges at ≤0.05% duty cycle; 1.0 °C/W RθJC supports thermal stability with minimal heatsinking. |
Use Scenario: Input-stage surge suppression for 110 V DC signaling power supplies in European railway interlocking systems. IC Role / Device Role / Timing Role: Front-end TVS on rectified AC input to meet EN 50121-4 immunity requirements for rolling stock. Use Value: Certified for IEC 61000-4-5 Class 5 (42 Ω source) at 300 V VWM - matches 110 V DC nominal with 2.7× safety margin against 300 V clamping ceiling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ300CA | Lower PPP (600 W), SMA package, 1.5x higher RθJA (1.5 °C/W), unidirectional/bidirectional variants available | Targeted at lower-energy consumer/industrial I/O protection; insufficient for DO-160F Level 5 or multi-stroke lightning | Select SMBJ300CA only for cost-sensitive, non-aerospace designs with <1 kA surge exposure. |
| SMCJ300CA | Higher PPP (1500 W), SMC package, RθJC ≈ 1.2 °C/W, same VWM/V(BR) tolerance, but not AEC-Q101 or DO-160F qualified | Suitable for industrial motor controls and telecom power supplies where full aerospace certification is unnecessary | Choose SMCJ300CA for volume production where qualification overhead is prohibitive but 1.5 kW surge headroom suffices. |
Compared with SMBJ300CA and SMCJ300CA, the MPLAD36KP300CAE3 provides 24× and 24× higher peak pulse power respectively, certified AEC-Q101 and RTCA DO-160F compliance, and superior thermal performance - making it the sole viable option for certified aerospace and high-reliability automotive surge protection.
Availability
MPLAD36KP300CAE3 is available at Aetrix Electronics and suitable for aircraft avionics interface protection, automotive power distribution modules, and industrial motor drive DC bus applications requiring stable component supply across extended product lifecycles.
Supply support for MPLAD36KP300CAE3 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 power management solutions for aerospace, defense, and industrial markets.
The MPLAD36KP300CAE3 belongs to Microsemi's high-power PLAD TVS family, engineered specifically for certified lightning and load-dump protection in safety-critical platforms where multi-stroke survivability and thermal robustness are mandatory.
FAQ
What is the clamping voltage of MPLAD36KP300CAE3 at its rated peak pulse current?
The MPLAD36KP300CAE3 exhibits a maximum clamping voltage (VC) of 483 V when subjected to its specified peak pulse current of 75 A under 10/1000 μs waveform conditions. This value is measured per standard test methodology defined in IEC 61000-4-5 and ensures downstream components remain within safe voltage limits during surge events. The MPLAD36KP300CAE3 maintains this clamping performance across its qualified operating temperature range of –55 °C to +150 °C.
Is MPLAD36KP300CAE3 suitable for automotive applications requiring AEC-Q101 qualification?
Yes, the MPLAD36KP300CAE3 is explicitly tested and qualified to AEC-Q101 standards for discrete semiconductors, covering stress tests such as HTGB, HTRB, and surge endurance. Its bidirectional architecture and 300 V VWM make it appropriate for 24 V automotive power distribution modules facing ISO 7637-2 load dump pulses. The MPLAD36KP300CAE3 also supports optional MIL-PRF-19500 screening for enhanced reliability in mission-critical automotive subsystems.
How does the PLAD package of MPLAD36KP300CAE3 improve thermal performance over standard SMC or SMB packages?
The PLAD package of MPLAD36KP300CAE3 integrates a metal base that serves as both the cathode terminal and primary thermal conduction path, achieving a junction-to-case thermal resistance of just 1.0 °C/W - significantly lower than typical SMC (≈1.2 °C/W) or SMB (≈1.5 °C/W) packages. This allows the MPLAD36KP300CAE3 to dissipate 36 kW surges more effectively when mounted on thermally enhanced PCBs or heatsinks, reducing thermal runaway risk during repetitive transients.
Does MPLAD36KP300CAE3 meet RTCA DO-160F lightning protection requirements?
Yes, the MPLAD36KP300CAE3 is certified for RTCA DO-160F Section 22 lightning-induced transient protection, specifically meeting Waveform 4 (6.4/69 μs) Level 5 requirements for 300 V VWM devices. Its sub-5 ns response time and 483 V clamping voltage ensure compliance with stringent avionics interface immunity mandates. The MPLAD36KP300CAE3 is also validated for multi-stroke lightning testing per DO-160F, confirming durability across repeated surge events.
What is the meaning of the 'E3' suffix in MPLAD36KP300CAE3?
The 'E3' suffix in MPLAD36KP300CAE3 indicates RoHS-compliant matte-tin plating on all terminations, conforming to EU Directive 2011/65/EU and IPC/JEDEC J-STD-020B moisture sensitivity Level 1. This eliminates the need for dry-packaging or baking prior to reflow soldering and ensures compatibility with lead-free assembly processes. The MPLAD36KP300CAE3 retains identical electrical and thermal specifications as its non-RoHS counterpart, with no performance trade-offs.
MPLAD36KP300CAE3 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):
- 300V
- Voltage - Breakdown (Min):
- 333V
- Voltage - Clamping (Max) @ Ipp:
- 483V
- Current - Peak Pulse (10/1000µs):
- 75A
- 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
MPLAD36KP300CAE3 FAQ
1.How can I place an order for MPLAD36KP300CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP300CAE3 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 MPLAD36KP300CAE3 reliable?
The price and inventory of MPLAD36KP300CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP300CAE3 is usually 5 days.
3.What payment methods are accepted for MPLAD36KP300CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP300CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP300CAE3?
MPLAD36KP300CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP300CAE3 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 MPLAD36KP300CAE3?
For technical support, including MPLAD36KP300CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP300CAE3 requirements.
6.How does Aetrix verify that MPLAD36KP300CAE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP300CAE3 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 MPLAD36KP300CAE3 meets industry standards.
7.What is the process for return or replacement of MPLAD36KP300CAE3?
All MPLAD36KP300CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP300CAE3, 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 MPLAD36KP300CAE3 part is unused and in its original packaging.
Return procedure for MPLAD36KP300CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP300CAE3 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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