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Microchip Technology MPLAD36KP180A/TR
- Part No.:
- MPLAD36KP180A/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP180A/TR.pdf
- Description:
- SURFACE MOUNT 36,000 WATT, TVS,
- Quantity:
- Payment:
- Shipping:
Inventory:6,604
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Product details
Overview
MPLAD36KP180A/TR from Microsemi (now Microchip) is a unidirectional surface-mount transient voltage suppressor (TVS) rated for 36,000 W peak pulse power at 10/1000 μs, with 180 V working standoff voltage (VWM), 200–221 V breakdown voltage (VBR), and 291 V clamping voltage (VC) at 124 A peak impulse current - designed for lightning and load dump protection in aerospace and automotive power rails.
For engineers reviewing the MPLAD36KP180A/TR datasheet, MPLAD36KP180A/TR pinout, MPLAD36KP180A/TR application, or MPLAD36KP180A/TR equivalent, this device delivers verified RTCA DO-160 Section 22 multi-stroke lightning compliance, AEC-Q101 qualification, and low thermal resistance (RθJC = 1.0 °C/W) in a PLAD package - critical for high-reliability 28 V/270 V aircraft bus and 12 V/24 V vehicle systems.
Technical Context
This TVS operates as a silicon avalanche diode with unidirectional polarity, triggered when reverse voltage exceeds VBR (200–221 V), entering low-differential-resistance clamping mode to limit transients to ≤291 V at 124 A. Its metal-base cathode construction enables direct thermal coupling to heatsinks, supporting sustained surge handling under IEC 61000-4-5 (42 Ω, 12 Ω, 2 Ω source impedances) and RTCA/DO-160G Waveform 4 & 5A pin injection.
It features 10 µA maximum standby current at 180 V, <100 ps response time (0 V to VBR), and junction temperature range of –55 °C to +150 °C. Thermal derating is defined per Figure 3, with steady-state dissipation of 2.51 W at 25 °C ambient and 504 W at 100 °C case temperature - confirming suitability for thermally constrained SMT layouts on FR4 with 1 oz Cu pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 180 V - Maximum continuous DC/repetitive peak reverse voltage before conduction; sets minimum system operating margin for 270 V aircraft or 24 V automotive rails. |
| VBR | 200–221 V at 5 mA - Breakdown threshold range; ensures reliable turn-on above nominal bus voltage while avoiding false triggering during ripple or transients. |
| VC | 291 V at 124 A (10/1000 μs) - Clamped voltage during worst-case surge; defines maximum stress imposed on downstream MOSFETs, regulators, or controllers. |
| PPP | 36,000 W - Peak pulse power rating; validates capability to absorb multi-kA lightning surges without failure per RTCA DO-160 Section 22. |
| RθJC | 1.0 °C/W - Junction-to-case thermal resistance; enables direct mounting to heatsink or copper pour for sustained energy dissipation without thermal runaway. |
| IPP | 124 A - Peak impulse current rating; correlates to 42 Ω IEC 61000-4-5 Class 5 (short distance) and DO-160G Waveform 4 Level 4 protection levels. |
| TJ | –55 °C to +150 °C - Operating junction temperature range; supports deployment in engine bay, avionics bays, and other extreme-environment locations. |
Pinout & Package
The MPLAD36KP180A/TR uses the PLAD (Power Leadless Array Device) surface-mount package: void-free UL94V-0 epoxy body with metal base acting as cathode terminal; total weight ≈1.7–2.0 g; RoHS-compliant matte-tin plating; marked with full part number on body; available in tape-and-reel ("TR" suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal Base (Bottom) | Cathode | Primary current path and thermal interface; must be soldered to large copper pour or heatsink for RθJC = 1.0 °C/W performance. |
| Top Surface Anode Pad | Anode | Signal-side connection point; routed with minimal trace inductance to protect sensitive IC inputs or power switches. |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW Surge Rating | Validated 10/1000 μs pulse handling up to 36,000 W - meets RTCA DO-160 Section 22 multi-stroke lightning requirements for commercial aircraft. |
| AEC-Q101 Qualified | Stress-tested across temperature cycling, HAST, and mechanical shock - certified for automotive powertrain and chassis control modules. |
| Low RθJC = 1.0 °C/W | Enables >500 W steady-state dissipation at 100 °C case temperature - eliminates need for external heatsinks in space-constrained SMT designs. |
| Moisture Sensitivity Level 1 | No dry pack or baking required prior to reflow - simplifies manufacturing and reduces assembly cost vs. MS Level 3+ components. |
| Wafer & Assembly Lot Traceability | Full process lot tracking from wafer fab through final test - satisfies AS9100 and IATF 16949 traceability mandates for aerospace and auto OEMs. |
Applications
| Aerospace Power Bus Protection | Automotive Load Dump Suppression |
|---|---|
Use Scenario: Protecting 270 V DC distribution buses in commercial aircraft against lightning-induced surges per RTCA DO-160G Section 22. IC Role / Device Role / Timing Role: Primary clamping element placed at bus entry point to limit transient overvoltage to ≤291 V during multi-stroke events. Use Value: Enables compliance with Class 5 pin injection (Waveform 4) and secondary lightning (IEC 61000-4-5, 42 Ω) without derating or parallel devices. | Use Scenario: Safeguarding 12 V/24 V automotive ECUs during alternator load dump events (ISO 7637-2 Pulse 5a/b). IC Role / Device Role / Timing Role: Unidirectional TVS connected between battery rail and ground, clamping spikes within 100 ps to prevent gate oxide damage in power MOSFETs. Use Value: Withstands 124 A peak current at 291 V clamp, eliminating need for series resistors or additional filtering stages in compact ECU designs. |
| Industrial Motor Drive DC Link | Railway Signaling Interface |
Use Scenario: Shielding IGBT gate drivers and bus voltage monitors in variable-frequency drives from switching-induced transients. IC Role / Device Role / Timing Role: Mounted directly across DC link capacitor terminals to clamp commutation spikes before they propagate to control circuitry. Use Value: 1.0 °C/W thermal resistance allows direct thermal coupling to aluminum heatsink, sustaining repeated 36 kW surges without thermal fatigue. | Use Scenario: Securing 110 V DC signaling lines in railway signaling cabinets against induced surges from nearby traction currents. IC Role / Device Role / Timing Role: Bidirectional-capable variant family member (though MPLAD36KP180A/TR is unidirectional) used in pair configuration for differential line protection. Use Value: 180 V VWM aligns with EN 50121-3-2 immunity requirements; 291 V VC ensures protected receivers remain below absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180A | Lower 600 W peak power rating; SMA package; RθJC ≈ 40 °C/W; no AEC-Q101 or DO-160 qualification. | Restricted to consumer/industrial low-energy transients; unsuitable for aircraft lightning or automotive load dump. | Select only for cost-sensitive, non-safety-critical 180 V rail protection where surge energy <500 J. |
| SMCJ180A | 3,000 W rating; SMC package; RθJC ≈ 12 °C/W; AEC-Q101 qualified but not DO-160 tested. | Valid for ISO 7637-2 Pulse 5a/b in automotive; insufficient for RTCA DO-160 multi-stroke or IEC 61000-4-5 Class 5. | Choose when needing AEC-Q101 compliance at lower cost and size, but with reduced surge margin vs. MPLAD36KP180A/TR. |
Compared with SMBJ180A and SMCJ180A, the MPLAD36KP180A/TR provides 12× and 12× higher peak power handling respectively, validated thermal performance for high-duty-cycle environments, and formal certification for aviation-grade lightning protection - making it the sole option for DO-160 Section 22 compliance at 180 V standoff.
Availability
MPLAD36KP180A/TR is available at Aetrix Electronics and suitable for aerospace power bus protection, automotive load dump suppression, and industrial motor drive DC link applications requiring stable component supply across extended product lifecycles.
Supply support for MPLAD36KP180A/TR 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 (acquired by Microchip Technology in 2018) 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 MPLAD36KP180A/TR belongs to Microsemi's high-power PLAD-series TVS family, engineered specifically for mission-critical transient suppression in environments demanding RTCA DO-160, AEC-Q101, and IEC 61000-4-5 compliance.
FAQ
What is the clamping voltage of MPLAD36KP180A/TR at its rated peak pulse current?
The MPLAD36KP180A/TR has a maximum clamping voltage (VC) of 291 V when subjected to its rated peak impulse current of 124 A under the standard 10/1000 μs waveform. This value is measured per test condition in Table 4 of the datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case surge events - critical for ensuring downstream components remain within their absolute maximum ratings.
Is MPLAD36KP180A/TR qualified for automotive applications?
Yes, the MPLAD36KP180A/TR is AEC-Q101 qualified, having passed stress tests including temperature cycling, highly accelerated stress testing (HAST), and mechanical shock. It is designed for automotive load dump protection per ISO 7637-2 Pulse 5a/b and supports 12 V and 24 V systems. Its 180 V VWM and 291 V VC make it suitable for protecting high-side power switches and microcontrollers in engine control units and body control modules.
Does MPLAD36KP180A/TR require moisture sensitivity handling before reflow soldering?
No, the MPLAD36KP180A/TR has IPC/JEDEC J-STD-020D.1 moisture sensitivity level (MSL) 1, meaning it is not humidity-sensitive and requires no dry pack, baking, or floor-life controls prior to reflow. This simplifies manufacturing logistics and eliminates yield loss risks associated with moisture-related popcorning - a key advantage over MSL 3+ TVS diodes in high-volume SMT lines.
How does the PLAD package of MPLAD36KP180A/TR improve thermal performance compared to standard SMC or SMB packages?
The PLAD package of MPLAD36KP180A/TR uses a metal base as the cathode terminal, providing direct thermal conduction from the silicon die to the PCB copper pour or heatsink. With a documented RθJC of 1.0 °C/W - versus ~12 °C/W for SMCJ or ~40 °C/W for SMBJ - it enables >500 W steady-state power dissipation at 100 °C case temperature, making it uniquely capable of handling repetitive surges in thermally constrained aerospace and industrial applications.
Can MPLAD36KP180A/TR be used for bidirectional transient suppression?
No, MPLAD36KP180A/TR is a unidirectional TVS, indicated by the "A" suffix (vs. "CA" for bidirectional variants). Its cathode is the metal base and anode is the top surface pad; it conducts only during reverse-biased overvoltage events. For bidirectional protection at 180 V standoff, the functionally matched part is MPLAD36KP180CA/TR - which shares identical power rating, clamping, and thermal specs but adds symmetrical avalanche behavior for AC or differential-line applications.
MPLAD36KP180A/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- Nonstandard SMD
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PLAD
MPLAD36KP180A/TR FAQ
1.How can I place an order for MPLAD36KP180A/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP180A/TR 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 MPLAD36KP180A/TR reliable?
The price and inventory of MPLAD36KP180A/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP180A/TR is usually 5 days.
3.What payment methods are accepted for MPLAD36KP180A/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP180A/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP180A/TR?
MPLAD36KP180A/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP180A/TR 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 MPLAD36KP180A/TR?
For technical support, including MPLAD36KP180A/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP180A/TR requirements.
6.How does Aetrix verify that MPLAD36KP180A/TR is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP180A/TR 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 MPLAD36KP180A/TR meets industry standards.
7.What is the process for return or replacement of MPLAD36KP180A/TR?
All MPLAD36KP180A/TR units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP180A/TR, 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 MPLAD36KP180A/TR part is unused and in its original packaging.
Return procedure for MPLAD36KP180A/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP180A/TR Tags
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