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Microchip Technology MPLAD36KP110A
- Part No.:
- MPLAD36KP110A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP110A.pdf
- Description:
- TVS DIODE 110VWM 177VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:2,858
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Product details
Overview
MPLAD36KP110A from Microsemi is a unidirectional 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 110 V reverse standoff voltage (VWM), clamps to ≤177 V at 204 A peak pulse current (IPP), and operates across –55°C to +150°C junction temperature. It is widely deployed in aircraft lightning protection per RTCA DO-160 Section 22.
For engineers reviewing the MPLAD36KP110A datasheet, MPLAD36KP110A pinout, MPLAD36KP110A application, or MPLAD36KP110A equivalent, key selection criteria include its 1.0°C/W junction-to-case thermal resistance, bidirectional compatibility via CA-suffix variants, IEC 61000-4-5 Class 4/5 secondary lightning compliance with 42 Ω source impedance, and AEC-Q101 qualification for automotive underhood environments.
Technical Context
This TVS diode uses an avalanche breakdown mechanism to clamp transients within nanoseconds, with <100 ps response time from 0 V to V(BR) min. Its void-free UL94V-0 epoxy package and metal-base cathode construction enable low thermal resistance and efficient heat dissipation into PCB copper pads.
It supports multi-stroke surge endurance per RTCA DO-160F Waveform 4 (6.4/69 μs) Level 4 and Waveform 5A (40/120 μs) Level 4 up to 110 V standoff, and meets IEC 61000-4-2 ESD (±30 kV contact), IEC 61000-4-4 EFT (±4 kV), and IEC 61000-4-5 surge immunity standards with defined source impedances.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - sustains single-stroke lightning-level surges without failure |
| Reverse Standoff Voltage (VWM) | 110 V - maximum continuous DC or peak AC voltage before clamping initiates |
| Clamping Voltage (VC @ IPP) | 177 V @ 204 A - limits downstream circuit voltage during worst-case surge event |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables direct thermal coupling to heatsinked PCB pads for sustained multi-pulse operation |
| Breakdown Voltage (V(BR)) | 122–135 V @ 5 mA - defines precise avalanche onset threshold for predictable clamping behavior |
| Steady-State Power Dissipation | 2.5 W @ TA = 25°C - supports low-duty-cycle leakage management without derating |
| Temperature Range | –55°C to +150°C - qualified for extended-range aerospace and engine bay applications |
Pinout & Package
Package: Surface-mount PLAD (Plastic Leaded Anode Down) with metal base cathode terminal; dimensions 12.32 × 10.54 × 5.08 mm (L × W × H); RoHS-compliant matte-tin plating; polarity marked on body for unidirectional versions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top side) | Surge current entry point | Connected to protected line; accepts transient energy prior to clamping |
| Cathode (metal base) | Surge current return path | Must be soldered to large copper pour or heatsink for thermal and electrical performance |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMT construction | Enables placement on compact power rails without height clearance issues in avionics enclosures |
| 100% surge-tested lot screening | Guarantees minimum PPP and VC performance per unit before shipment |
| MIL-PRF-19500 upscreening option | Supports high-reliability programs requiring M, MA, MX, or MXL level conformance inspection |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints for assembly planning |
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications with thermal cycling and humidity exposure |
Applications
| Aircraft Lightning Protection | Automotive Load Dump Suppression |
|---|---|
Use Scenario: Secondary surge protection on avionics power distribution units subjected to RTCA DO-160 Section 22 multi-stroke lightning pulses. IC Role / Device Role / Timing Role: Transient voltage suppressor clamping induced surges on 28 V DC bus lines. Use Value: Meets Level 4 pin-injection immunity per DO-160F Waveform 4 with 110 V standoff, limiting bus overvoltage to ≤177 V. |
Use Scenario: Protection of engine control modules (ECMs) against 12 V battery load dump transients up to 120 V. IC Role / Device Role / Timing Role: Unidirectional TVS absorbing 36 kW surge energy while maintaining system reset integrity. Use Value: Clamps 204 A peak current at 177 V, preventing latch-up or damage to downstream 100 V-rated MOSFETs and regulators. |
| Industrial Motor Drive DC Bus | Renewable Energy Inverter Input |
Use Scenario: DC link protection in variable-frequency drives exposed to switching-induced transients and regenerative spikes. IC Role / Device Role / Timing Role: High-power TVS placed across DC bus capacitors to absorb repetitive 10/1000 μs surges. Use Value: 1.0°C/W RθJC allows mounting on copper-backed heatsinks for >0.05% duty cycle operation without thermal runaway. |
Use Scenario: Surge protection on photovoltaic string inputs of grid-tied inverters subject to IEC 61000-4-5 Class 4 surges. IC Role / Device Role / Timing Role: Primary clamping device on MPPT input stage with 110 V nominal string voltage. Use Value: Complies with IEC 61000-4-5 Class 4 using 42 Ω source impedance, clamping to 177 V at 204 A. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A | Lower PPP (600 W), smaller SMB package, 1.5°C/W RθJA, no AEC-Q101 or DO-160 qualification | Suitable for consumer-grade 110 V AC line filtering, not certified for aerospace or automotive surge standards | Select only for cost-sensitive, low-energy applications where MIL/AEC/DO-160 compliance is unnecessary |
| SMCJ110A | Higher PPP (1500 W), larger SMC package, 0.9°C/W RθJC, AEC-Q101 qualified but not DO-160 tested | Valid for automotive ECU protection per ISO 7637-2, but lacks RTCA DO-160 waveform validation | Prefer when needing higher reliability than SMBJ but without aircraft certification requirements |
Compared with SMBJ110A and SMCJ110A, the MPLAD36KP110A uniquely delivers 36× higher peak power handling, DO-160F waveform validation, and metal-base thermal architecture-making it irreplaceable in certified aerospace power systems where single-event surge survival is non-negotiable.
Availability
MPLAD36KP110A is available at Aetrix Electronics and suitable for aircraft lightning protection, automotive load dump suppression, industrial motor drive DC bus protection, and renewable energy inverter input surge management requiring stable component supply across extended product lifecycles.
Supply support for MPLAD36KP110A 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, and industrial markets.
The MPLAD36KP110A belongs to Microsemi's high-power PLAD TVS family, engineered specifically for certified multi-stroke lightning and load-dump protection in safety-critical power systems.
FAQ
What is the clamping voltage of the MPLAD36KP110A at its rated peak pulse current?
The MPLAD36KP110A exhibits a maximum clamping voltage (VC) of 177 V when subjected to its rated peak pulse current of 204 A under 10/1000 μs waveform conditions. This value ensures downstream 200 V-rated components remain within safe operating limits during surge events. The MPLAD36KP110A achieves this clamping performance while maintaining sub-100 ps response time from zero volts to breakdown threshold.
Is the MPLAD36KP110A qualified for automotive applications?
Yes, the MPLAD36KP110A is AEC-Q101 qualified, confirming its suitability for automotive underhood and powertrain applications including load dump protection. It has undergone stress testing for temperature cycling, humidity, and mechanical shock per AEC-Q101 requirements. The MPLAD36KP110A also supports optional MIL-PRF-19500 upscreening for mission-critical vehicle subsystems.
Does the MPLAD36KP110A meet RTCA DO-160 lightning protection standards?
Yes, the MPLAD36KP110A is validated for RTCA DO-160 Section 22 multi-stroke lightning testing and meets DO-160F Waveform 4 (6.4/69 μs) Level 4 and Waveform 5A (40/120 μs) Level 4 requirements at 110 V standoff. Its 36 kW PPP rating and metal-base thermal design directly support compliance with aircraft lightning protection specifications.
What is the thermal resistance specification for the MPLAD36KP110A?
The MPLAD36KP110A has a junction-to-case thermal resistance (RθJC) of 1.0°C/W, measured with case temperature controlled on a heatsink as specified. This low value enables effective heat transfer from the silicon die to the PCB copper pad or external heatsink, supporting multi-pulse operation with ≤0.05% duty factor. The MPLAD36KP110A relies on proper pad layout per datasheet Figure 6 for optimal thermal performance.
How does the MPLAD36KP110A differ from bidirectional variants like MPLAD36KP110CA?
The MPLAD36KP110A is unidirectional, with cathode on the metal base and anode on the top surface, intended for DC line protection where polarity is fixed. The MPLAD36KP110CA is bidirectional, symmetrically clamping both positive and negative transients, making it suitable for AC signal lines or floating buses. Both share identical PPP, VWM, and thermal specs, but differ in polarity marking, test methodology, and application topology.
MPLAD36KP110A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- Nonstandard SMD
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 110V
- Voltage - Breakdown (Min):
- 122V
- Voltage - Clamping (Max) @ Ipp:
- 177V
- Current - Peak Pulse (10/1000µs):
- 204A
- 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
MPLAD36KP110A FAQ
1.How can I place an order for MPLAD36KP110A through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP110A 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 MPLAD36KP110A reliable?
The price and inventory of MPLAD36KP110A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP110A is usually 5 days.
3.What payment methods are accepted for MPLAD36KP110A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP110A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP110A?
MPLAD36KP110A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP110A 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 MPLAD36KP110A?
For technical support, including MPLAD36KP110A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP110A requirements.
6.How does Aetrix verify that MPLAD36KP110A is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP110A 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 MPLAD36KP110A meets industry standards.
7.What is the process for return or replacement of MPLAD36KP110A?
All MPLAD36KP110A units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP110A, 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 MPLAD36KP110A part is unused and in its original packaging.
Return procedure for MPLAD36KP110A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP110A Tags
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