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Microchip Technology MPLAD36KP180AE3
- Part No.:
- MPLAD36KP180AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP180AE3.pdf
- Description:
- TVS DIODE 180VWM 291VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:3,034
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Product details
Overview
MPLAD36KP180AE3 from Microsemi is a unidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace and automotive power systems. It delivers 36 kW peak pulse power at 10/1000 μs, clamps at ≤291 V under 100 A peak impulse current, and features a 180 V reverse standoff voltage (VWM), 200–221 V breakdown voltage (V(BR)), and 1.0 °C/W junction-to-case thermal resistance - enabling robust secondary lightning protection per RTCA DO-160 Section 22 and IEC 61000-4-5.
For engineers reviewing the MPLAD36KP180AE3 datasheet, MPLAD36KP180AE3 pinout, MPLAD36KP180AE3 application, or MPLAD36KP180AE3 equivalent, key selection criteria include its 180 V VWM rating, unidirectional polarity, RoHS-compliant e3 plating, low-profile PLAD package with metal-base cathode, and qualification to AEC-Q101 and MIL-PRF-19500 screening levels.
Technical Context
This TVS diode operates as a clamping-type overvoltage protector, triggered when transient voltage exceeds its 200–221 V breakdown threshold. Its metal-base construction provides direct thermal path to PCB copper, achieving 1.0 °C/W RθJC and supporting sustained energy dissipation without derating up to 100°C case temperature.
It meets multi-stroke lightning immunity per RTCA DO-160F Waveform 4 (Level 4) and Waveform 5A (Level 4 up to 78 V devices), and supports secondary lightning protection per IEC 61000-4-5 across 2 Ω, 12 Ω, and 42 Ω source impedances - with verified performance for Class 1–5 applications at 180 V standoff.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 180 V - maximum continuous DC or peak AC operating voltage the device blocks without conduction |
| V(BR) min/max | 200–221 V @ 5 mA - precise breakdown range ensures reliable turn-on margin above VWM |
| VC @ IPP | 291 V max @ 100 A - clamping voltage defines worst-case downstream voltage stress during surge |
| PPP | 36,000 W @ 10/1000 μs - enables single-device protection against severe load dump and lightning transients |
| RθJC | 1.0 °C/W - allows direct mounting to thermal pad for efficient heat transfer to PCB ground plane |
| ID @ VWM | 10 μA max - ultra-low leakage preserves system standby power integrity |
| Polarity | Unidirectional - cathode on metal base enables simplified layout with single-sided grounding |
Pinout & Package
The MPLAD36KP180AE3 uses the PLAD surface-mount package: void-free UL94V-0 epoxy body (12.32 × 10.54 × 5.08 mm), matte-tin (e3) RoHS-compliant plating, and metal base serving as cathode terminal. Thermal pad design requires FR4 board with recommended footprint (A = 11.94 mm, B = 5.85 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal Base (Bottom) | Cathode | Primary heat sink interface and return path; must be soldered to large copper area for thermal management |
| Top Surface Pad | Anode | Signal-side connection point; routed to protected line (e.g., 24 V rail or avionics bus) |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW Peak Pulse Power | Single-device protection against automotive load dump (ISO 7637-2 Pulse 5a/b) and aircraft lightning (DO-160 Sec. 22) |
| 1.0 °C/W Junction-to-Case Resistance | Enables >70 W steady-state dissipation at TC = 100°C without external heatsink |
| AEC-Q101 Qualified | Validated reliability for automotive powertrain and chassis modules subject to temperature cycling and vibration |
| e3 RoHS Compliance | Matte-tin plating ensures lead-free assembly compatibility and eliminates tin whisker risk in high-reliability systems |
| RTCA DO-160F Waveform 4 Level 4 Rating | Withstands 6.4/69 μs pin-injection transients up to 180 V standoff - critical for flight-critical avionics I/O protection |
Applications
| Avionics Power Bus Protection | Commercial Vehicle DC Power Distribution |
|---|---|
Use Scenario: Protecting 28 V DC distribution buses in regional aircraft against induced lightning transients per DO-160 Section 22. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed at bus entry point to limit voltage excursion during multi-stroke events. Use Value: 36 kW PPP and 291 V clamping ensure downstream 28 V regulators and FPGAs remain within absolute maximum ratings during 100 A surges. | Use Scenario: Safeguarding 24 V control electronics in heavy-duty trucks against alternator load dump transients (ISO 7637-2 Pulse 5b). IC Role / Device Role / Timing Role: Primary surge suppression element mounted directly at battery feed-through point. Use Value: 180 V VWM provides 6× margin over nominal 24 V system, while 1.0 °C/W RθJC enables operation without forced air cooling. |
| Industrial Motor Drive DC Link | Railway Signaling Interface |
Use Scenario: Clamping switching spikes on 200–250 V DC link rails of variable-frequency drives in factory automation. IC Role / Device Role / Timing Role: Fast-response TVS absorbing IGBT turn-off energy and preventing gate driver latch-up. Use Value: 200–221 V V(BR) aligns with 200 V DC link rating, and 291 V VC limits MOSFET drain-source stress below 300 V rating. | Use Scenario: Protecting 110 V DC trackside signaling interfaces from EFT bursts and induced surges in rail infrastructure. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), handling residual fast-rising transients. Use Value: 180 V VWM matches 110 V nominal with safety margin, and IEC 61000-4-4/5 compliance ensures immunity to 4 kV EFT and 2 kV surge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180A | 600 W PPP, DO-214AA package, 201 V V(BR), 291 V VC @ 20 A | Lower energy handling; suitable only for sub-10 A transients in consumer/industrial gear | Select SMBJ180A only where surge currents remain below 20 A and thermal budget permits higher RθJA (50 °C/W) |
| SMCJ180A | 1500 W PPP, DO-214AB package, 201 V V(BR), 291 V VC @ 50 A | Mid-tier power rating; lacks DO-160F qualification and 36 kW capability for aerospace use | Choose SMCJ180A for cost-sensitive industrial controls where full DO-160 compliance is not required |
Compared with SMBJ180A and SMCJ180A, the MPLAD36KP180AE3 delivers 24× and 24× higher peak pulse power respectively, supports AEC-Q101 and MIL-PRF-19500 screening, and provides certified DO-160F Waveform 4 Level 4 immunity - making it the sole option for certified aerospace and high-reliability automotive load dump protection.
Availability
MPLAD36KP180AE3 is available at Aetrix Electronics and suitable for avionics power bus protection, commercial vehicle DC power distribution, and industrial motor drive DC link applications requiring stable component supply, long-term lifecycle support, and traceable high-reliability sourcing.
Supply support for MPLAD36KP180AE3 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, RF, and timing solutions for aerospace, defense, and industrial markets.
The MPLAD series was developed specifically for high-energy transient suppression in safety-critical platforms - emphasizing low thermal resistance, DO-160 compliance, and extended screening options for mission-critical deployment.
FAQ
What is the clamping voltage of the MPLAD36KP180AE3 under maximum rated surge current?
The MPLAD36KP180AE3 has a maximum clamping voltage (VC) of 291 V when subjected to its rated peak pulse current of 100 A under 10/1000 μs waveform conditions. This value is measured at the device terminals and defines the upper voltage limit imposed on protected circuitry during worst-case transients. The MPLAD36KP180AE3 maintains this clamping performance across its qualified operating temperature range of –55°C to +150°C.
Is the MPLAD36KP180AE3 suitable for automotive applications requiring AEC-Q101 qualification?
Yes, the MPLAD36KP180AE3 is tested and qualified to AEC-Q101 standards for discrete semiconductors. It undergoes stress testing including temperature cycling, highly accelerated life testing (HALT), and surge robustness verification per the AEC-Q101-004 standard. This qualification confirms its suitability for under-hood and powertrain applications where reliability under thermal and electrical stress is mandatory - such as 24 V load dump protection in commercial vehicles.
How does the PLAD package of the MPLAD36KP180AE3 improve thermal performance compared to standard SMC or SMB packages?
The PLAD package of the MPLAD36KP180AE3 uses a metal base as the cathode terminal, providing a direct thermal conduction path from the silicon die to the PCB copper pour. With a measured junction-to-case thermal resistance (RθJC) of just 1.0 °C/W - versus 15–25 °C/W for typical SMC/SMB packages - the MPLAD36KP180AE3 dissipates heat more efficiently. This enables higher steady-state power handling and sustained 36 kW surge capability without thermal runaway.
Does the MPLAD36KP180AE3 meet RTCA DO-160F lightning protection requirements?
Yes, the MPLAD36KP180AE3 is explicitly rated for RTCA DO-160F Section 22 lightning-induced transient protection. It achieves Level 4 immunity for Pin Injection Waveform 4 (6.4/69 μs) and Level 4 for Waveform 5A (40/120 μs) at its 180 V standoff rating. These certifications are validated through third-party lab testing and documented in Microsemi's RF01216 datasheet revision B, confirming its use in certified avionics equipment.
What is the meaning of the 'E3' suffix in MPLAD36KP180AE3?
Within the MPLAD36KP180AE3 part number, the 'E3' suffix indicates RoHS-compliant matte-tin plating on all external terminations, per JEDEC J-STD-020B moisture sensitivity level 1 (no dry pack required). This finish ensures compatibility with lead-free reflow processes, prevents tin whisker formation, and meets environmental compliance requirements for aerospace and industrial deployments - distinguishing it from non-RoHS variants marked with blank or 'E2' suffixes.
MPLAD36KP180AE3 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):
- 180V
- Voltage - Breakdown (Min):
- 200V
- Voltage - Clamping (Max) @ Ipp:
- 291V
- Current - Peak Pulse (10/1000µs):
- 124A
- 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
MPLAD36KP180AE3 FAQ
1.How can I place an order for MPLAD36KP180AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP180AE3 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 MPLAD36KP180AE3 reliable?
The price and inventory of MPLAD36KP180AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP180AE3 is usually 5 days.
3.What payment methods are accepted for MPLAD36KP180AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP180AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP180AE3?
MPLAD36KP180AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP180AE3 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 MPLAD36KP180AE3?
For technical support, including MPLAD36KP180AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP180AE3 requirements.
6.How does Aetrix verify that MPLAD36KP180AE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP180AE3 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 MPLAD36KP180AE3 meets industry standards.
7.What is the process for return or replacement of MPLAD36KP180AE3?
All MPLAD36KP180AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP180AE3, 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 MPLAD36KP180AE3 part is unused and in its original packaging.
Return procedure for MPLAD36KP180AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP180AE3 Tags
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