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Microchip Technology MPLAD36KP260CA
- Part No.:
- MPLAD36KP260CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP260CA.pdf
- Description:
- TVS DIODE 260VWM 419VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:5,559
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Product details
Overview
MPLAD36KP260CA 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 ≤419 V under 86 A peak impulse current, and features a 260 V reverse standoff voltage (VWM) with ±5% breakdown tolerance (289–320 V). Its low-profile thermoset epoxy package enables robust lightning protection per RTCA DO-160 Section 22 and IEC 61000-4-5 Class 3–5.
For engineers reviewing the MPLAD36KP260CA datasheet, MPLAD36KP260CA pinout, MPLAD36KP260CA application, or MPLAD36KP260CA equivalent, key selection criteria include its bidirectional polarity, 260 V working voltage rating, 419 V max clamping at 86 A, thermal resistance of 1.0 °C/W junction-to-case, and compliance with AEC-Q101 and MIL-PRF-19500 screening options.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device triggered by avalanche breakdown above V(BR), providing fast response (<5 ns) to transients including lightning-induced surges, load dump spikes, and EFT events. Its bidirectional construction ensures symmetrical clamping for AC-coupled or floating signal/power lines.
Designed for secondary lightning protection per IEC 61000-4-5 with 42 Ω, 12 Ω, and 2 Ω source impedances, it supports Class 3–5 compliance depending on distance and impedance configuration. It also meets RTCA/DO-160F Waveform 4 (Level 4/5) and Waveform 5A (Level 4/5) pin injection requirements when derated per MicroNote 132.
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) | 260 V - maximum continuous DC or peak AC voltage before clamping initiates |
| Breakdown Voltage (V(BR)) | 289–320 V @ 5 mA - precise avalanche threshold enabling predictable turn-on margin |
| Max Clamping Voltage (VC) | 419 V @ 86 A - limits downstream voltage stress during worst-case surge conditions |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to PCB copper or heatsink for repeated surge duty |
| Surge Current Rating (IPP) | 86 A @ 10/1000 μs - quantifies single-event energy handling capability |
| Temperature Coefficient (αV(BR)) | 318 mV/°C - allows accurate V(BR) prediction across -55°C to +150°C operating range |
Pinout & Package
Package: PLAD (Plastic Leaded Anode/Cathode) - void-free UL94V-0 thermosetting epoxy body with metal base cathode terminal; dimensions: 12.32 × 10.54 × 5.08 mm (L × W × H); weight: ~1.85 g; RoHS-compliant matte-tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Top Surface Pad) | AC-side or line-side connection point | Primary surge entry path for bidirectional operation; symmetric with cathode |
| Cathode (Metal Base) | Ground-reference or return path | Low-inductance thermal and electrical interface to PCB copper pour or heatsink |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping symmetry | Enables protection of floating or AC-coupled bus lines without polarity constraints |
| RTCA DO-160 Section 22 compliance | Validated for multi-stroke lightning testing in aircraft avionics and power distribution units |
| AEC-Q101 qualification | Guarantees reliability under automotive temperature cycling, humidity, and mechanical shock |
| MIL-PRF-19500 upscreening option | Supports high-reliability programs requiring lot traceability, 3σ ID screening, and conformance inspection |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life limitations for SMT assembly |
Applications
| Aerospace Power Distribution | Automotive Load Dump Protection |
|---|---|
Use Scenario: 270 V DC primary power bus in commercial aircraft, exposed to lightning-induced transients per DO-160G Section 22. IC Role / Device Role / Timing Role: Bidirectional TVS clamp limiting bus voltage excursion during multi-stroke surges. Use Value: Enables compliance with Class 5 lightning protection over long-distance wiring harnesses using 42 Ω source impedance. |
Use Scenario: 24 V battery-fed control module in heavy-duty truck experiencing ISO 16750-2 load dump events up to 120 V. IC Role / Device Role / Timing Role: Primary surge suppression stage absorbing >36 kW energy before downstream regulators. Use Value: Prevents latch-up or destruction of microcontrollers and CAN transceivers during 100 ms, 120 V transients. |
| Industrial Motor Drive DC Link | Railway Signaling Interface |
Use Scenario: DC link between rectifier and inverter in 3-phase motor drives subject to switching-induced voltage spikes. IC Role / Device Role / Timing Role: Fast-response clamping element shunting inductive kickback energy away from IGBT gate drivers. Use Value: Reduces risk of false triggering or gate oxide damage by clamping transients within 5 ns to ≤419 V. |
Use Scenario: 110 V signaling line in European railway interlocking systems requiring IEC 61000-4-5 Class 4 immunity. IC Role / Device Role / Timing Role: Secondary protection device placed after primary gas discharge tube (GDT) on field wiring. Use Value: Provides precise low-clamping-voltage follow-on protection with 260 V VWM matching nominal line voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ260CA | Lower PPP (600 W), smaller SMB package, higher RθJA (50 °C/W), no AEC-Q101 or MIL screening | Suitable for consumer-grade or non-safety-critical board-level protection only | Select when cost and size constrain design, and surge energy is <1% of MPLAD36KP260CA capability |
| SMCJ260CA | Higher PPP (1500 W), larger SMC package, RθJA = 25 °C/W, AEC-Q101 qualified but not DO-160 tested | Fits industrial controls needing moderate surge margin but lacking aerospace certification | Choose when DO-160 compliance is unnecessary and PCB space permits SMC footprint |
Compared with SMBJ260CA and SMCJ260CA, the MPLAD36KP260CA delivers 24× and 24× higher peak pulse power respectively, supports full DO-160G Section 22 validation, and offers MIL-PRF-19500 upscreening-making it uniquely suited for certified aerospace and mission-critical automotive platforms.
Availability
MPLAD36KP260CA is available at Aetrix Electronics and suitable for aerospace power distribution, automotive load dump protection, and industrial motor drive DC link applications requiring stable component supply, long-term lifecycle support, and certified surge performance.
Supply support for MPLAD36KP260CA 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 MPLAD36KP260CA belongs to Microsemi's PLAD-series high-power TVS family, engineered specifically for certified lightning and load-dump protection in safety-critical systems where multi-kW surge handling and regulatory compliance are mandatory.
FAQ
What is the clamping voltage of MPLAD36KP260CA at its rated peak pulse current?
The MPLAD36KP260CA has a maximum clamping voltage (VC) of 419 V at 86 A peak pulse current (IPP) under 10/1000 μs waveform conditions. This value is measured per Figure 3 in RF01216 Rev B and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The clamping behavior remains stable across its -55°C to +150°C operating junction temperature range.
Is MPLAD36KP260CA certified for RTCA DO-160 lightning testing?
Yes, the MPLAD36KP260CA is validated for RTCA DO-160 Section 22 multi-stroke lightning testing, specifically supporting Level 4 and Level 5 compliance for Waveform 4 (6.4/69 μs) and Waveform 5A (40/120 μs) when applied with appropriate temperature derating per MicroNote 132. Its 36 kW PPP rating and low thermal resistance enable repeatable performance across stroke sequences.
Does MPLAD36KP260CA meet automotive reliability standards?
Yes, the MPLAD36KP260CA is qualified to AEC-Q101, covering stress tests including temperature cycling, humidity bias, mechanical shock, and surge current. It is intended for automotive applications such as 24 V load dump protection in commercial vehicles and off-highway equipment where sustained reliability under harsh environmental conditions is required.
What is the thermal resistance and how does it affect PCB layout for MPLAD36KP260CA?
The MPLAD36KP260CA has a junction-to-case thermal resistance (RθJC) of 1.0 °C/W. To maintain safe operation during repetitive surges, the metal base (cathode) must be soldered to a minimum 10 cm² copper pour on inner or outer PCB layers, or attached to an external heatsink. Layouts omitting thermal relief or using thin traces will cause excessive junction temperature rise and premature failure.
Can MPLAD36KP260CA replace unidirectional TVS diodes in existing designs?
No-MPLAD36KP260CA is strictly bidirectional (denoted by "CA" suffix) and cannot substitute for unidirectional devices like MPLAD36KP260A without circuit review. Its symmetrical V-I curve clamps equally in both polarities, making it unsuitable for DC-biased lines where forward conduction must be blocked. Replacing a unidirectional TVS requires verifying polarity alignment and revalidating clamping margins.
MPLAD36KP260CA 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):
- 260V
- Voltage - Breakdown (Min):
- 289V
- Voltage - Clamping (Max) @ Ipp:
- 419V
- Current - Peak Pulse (10/1000µs):
- 86A
- 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
MPLAD36KP260CA FAQ
1.How can I place an order for MPLAD36KP260CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP260CA 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 MPLAD36KP260CA reliable?
The price and inventory of MPLAD36KP260CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP260CA is usually 5 days.
3.What payment methods are accepted for MPLAD36KP260CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP260CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP260CA?
MPLAD36KP260CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP260CA 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 MPLAD36KP260CA?
For technical support, including MPLAD36KP260CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP260CA requirements.
6.How does Aetrix verify that MPLAD36KP260CA is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP260CA 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 MPLAD36KP260CA meets industry standards.
7.What is the process for return or replacement of MPLAD36KP260CA?
All MPLAD36KP260CA units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP260CA, 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 MPLAD36KP260CA part is unused and in its original packaging.
Return procedure for MPLAD36KP260CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP260CA Tags
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