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Microchip Technology MPLAD36KP26AE3/TR
- Part No.:
- MPLAD36KP26AE3/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP26AE3/TR.pdf
- Description:
- SURFACE MOUNT 36,000 WATT, TVS,
- Quantity:
- Payment:
- Shipping:
Inventory:8,512
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Product details
Overview
MPLAD36KP26AE3/TR from Microchip (formerly Microsemi) is a unidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace, automotive, and industrial power rails. It delivers 36 kW peak pulse power at 10/1000 μs, clamps transients to ≤43.0 V at 838 A, and features a 26 V working standoff voltage with <100 ps response time.
For engineers reviewing the MPLAD36KP26AE3/TR datasheet, MPLAD36KP26AE3/TR pinout, MPLAD36KP26AE3/TR application, or MPLAD36KP26AE3/TR equivalent, this device is selected for RTCA DO-160 Section 22 multi-stroke lightning compliance, load dump suppression, and IEC 61000-4-5 Class 4/5 secondary protection where low thermal resistance (1.0 °C/W junction-to-case) and RoHS-compliant matte-tin plating are critical.
Technical Context
This TVS operates in avalanche breakdown mode with a specified breakdown voltage range of 28.9–31.9 V at 5 mA test current and exhibits a temperature coefficient of 24 mV/°C. Its metal-base PLAD package enables direct thermal coupling to heatsinks, supporting continuous power dissipation up to 504 W at 100 °C case temperature.
The device meets AEC-Q101 qualification and is surge-tested per IEC 61000-4-5 with 2 Ω, 12 Ω, and 42 Ω source impedances - enabling use in Class 2–5 lightning protection across varying line impedances. Clamping performance is validated at 838 A peak impulse current with VC ≤43.0 V, ensuring robust overvoltage limiting during fast transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 36,000 W at 10/1000 μs - sustains aircraft-grade lightning surges without failure |
| Working Standoff Voltage (VWM) | 26 V - matches nominal 24 V automotive and avionics bus systems |
| Clamping Voltage (VC) | ≤43.0 V at 838 A - limits downstream IC stress below 45 V absolute maximum ratings |
| Breakdown Voltage (VBR) | 28.9–31.9 V at 5 mA - ensures reliable conduction onset above normal operating voltage |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables high-power derating when mounted on copper heatsink pads |
| Response Time | <100 ps - suppresses ESD and fast-switching transients before system damage occurs |
| RoHS Compliance | e3 suffix - lead-free matte-tin plating compatible with Pb-free reflow profiles |
Pinout & Package
The MPLAD36KP26AE3/TR uses the PLAD surface-mount package with a metal base acting as the cathode terminal. The anode is accessible via the top-side metallization. This thermally optimized design minimizes junction-to-ambient resistance and supports high-current pulse handling through direct metal-to-heatsink contact.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal Base (Bottom) | Cathode | Primary heat path and high-current return node; must be soldered to thermal pad for rated power handling |
| Top-Side Metallization | Anode | Input connection point for protected line; requires minimum 10 mm² copper pour for 838 A surge current |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW Surge Rating | Validated at 10/1000 μs waveform - meets RTCA DO-160G Section 22 multi-stroke lightning requirements |
| AEC-Q101 Qualified | Automotive-grade reliability with wafer lot traceability and 3σ screening on standby current |
| Low Thermal Resistance | RθJC = 1.0 °C/W - enables >500 W steady-state dissipation with active heatsinking |
| Moisture Sensitivity Level 1 | No dry pack required per IPC/JEDEC J-STD-020D.1 - simplifies SMT handling and storage |
| Bidirectional Variant Available | CA suffix option (e.g., MPLAD36KP26CAE3/TR) - supports AC-coupled or floating-line protection |
Applications
| Aircraft Power Distribution Units | Automotive 24 V Load Dump Protection |
|---|---|
Use Scenario: Protecting avionics bus controllers from multi-stroke lightning-induced surges per RTCA DO-160G Section 22. IC Role / Device Role / Timing Role: Primary clamping element on main 28 V DC distribution rail, triggered within <100 ps of transient onset. Use Value: Enables compliance with Level 4/5 pin-injection tests using Waveform 4 (6.4/69 μs) and Waveform 5A (40/120 μs) without derating. |
Use Scenario: Suppressing alternator load dump spikes (up to 120 V, 400 ms) in commercial truck ECUs and battery management systems. IC Role / Device Role / Timing Role: Unidirectional shunt protector placed upstream of DC-DC converters and microcontrollers. Use Value: Limits voltage excursion to ≤43.0 V during 838 A transients, preventing latch-up or gate oxide rupture in downstream silicon. |
| Industrial Motor Drive DC Bus | Railway Signaling Power Supplies |
Use Scenario: Safeguarding IGBT gate drivers and current sensors against switching transients in 24–48 V motor control inverters. IC Role / Device Role / Timing Role: Fast-response clamp on low-voltage auxiliary supply rail feeding isolated gate drivers. Use Value: Delivers 36 kW pulse power with 1.0 °C/W thermal path - maintains junction temperature below 150 °C under repeated 100 ms surges. |
Use Scenario: Secondary surge protection for EN 50121-4 compliant signaling interfaces in train control electronics. IC Role / Device Role / Timing Role: IEC 61000-4-5 Class 4 protector on 24 V DC input with 42 Ω source impedance. Use Value: Supports long-distance lightning protection (Class 5) up to 260 V standoff variants, with this 26 V version covering low-voltage sensor inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ26A | Lower 600 W rating, SMB package, RθJA = 110 °C/W - no heatsink integration | Suitable only for single-event ESD/EFT; cannot meet DO-160G multi-stroke or load dump duty cycles | Select MPLAD36KP26AE3/TR when >1 kW surge energy, thermal management, or aerospace qualification is required |
| SMCJ26A | 1500 W rating, SMC package, RθJC = 2.5 °C/W - limited to 100 W continuous dissipation | Meets IEC 61000-4-5 Class 3 but not Class 4/5 with 2 Ω source impedance | Choose MPLAD36KP26AE3/TR for applications demanding 36 kW peak power, 838 A IPP, and AEC-Q101 + DO-160G compliance |
Compared with SMBJ26A and SMCJ26A, the MPLAD36KP26AE3/TR provides 24× higher peak power, 2.5× lower thermal resistance, and certified qualification for aviation and automotive multi-pulse environments - making it the only option for sustained high-energy surge protection in mission-critical power rails.
Availability
MPLAD36KP26AE3/TR is available at Aetrix Electronics and suitable for aircraft power distribution units, automotive 24 V load dump protection, and industrial motor drive DC bus applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for MPLAD36KP26AE3/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
Microchip Technology acquired Microsemi in 2018 and now manufactures high-reliability discrete components including TVS diodes, MOSFETs, and radiation-hardened ICs for aerospace, defense, and industrial markets.
The MPLAD36KP26AE3/TR belongs to Microchip's high-power PLAD-series TVS family, engineered specifically for multi-stroke lightning protection and automotive load dump suppression where thermal performance and qualification rigor are non-negotiable.
FAQ
What is the clamping voltage of the MPLAD36KP26AE3/TR at its rated peak pulse current?
The MPLAD36KP26AE3/TR has a maximum clamping voltage (VC) of 43.0 V at 838 A peak impulse current (IPP) under the 10/1000 μs waveform. This value is measured per standard test conditions and ensures protected circuits remain within safe operating voltage limits during high-energy transients. The MPLAD36KP26AE3/TR achieves this while maintaining sub-100 ps response time and thermal stability via its metal-base PLAD package.
Is the MPLAD36KP26AE3/TR qualified for automotive applications?
Yes, the MPLAD36KP26AE3/TR is AEC-Q101 qualified and explicitly rated for automotive 24 V load dump protection. It meets IEC 61000-4-5 Class 4/5 with 42 Ω source impedance and supports long-duration transients up to 400 ms. The MPLAD36KP26AE3/TR also features wafer lot traceability and 3σ screening on standby current - key requirements for Tier 1 automotive supply chain compliance.
How does the PLAD package of the MPLAD36KP26AE3/TR improve thermal performance?
The PLAD package of the MPLAD36KP26AE3/TR uses a void-free transfer-molded epoxy body with a metal base that serves as both the cathode terminal and primary thermal path. This design achieves a junction-to-case thermal resistance of just 1.0 °C/W, enabling >500 W steady-state power dissipation when mounted on a properly sized heatsink pad. The MPLAD36KP26AE3/TR leverages this to sustain repeated 36 kW surges without thermal runaway.
Does the MPLAD36KP26AE3/TR meet RTCA DO-160G lightning protection standards?
Yes, the MPLAD36KP26AE3/TR is specifically designed and tested to meet RTCA DO-160G Section 22 for multi-stroke lightning protection. It passes Level 4 and Level 5 pin injection tests using Waveform 4 (6.4/69 μs) and Waveform 5A (40/120 μs) at 25 °C ambient. The MPLAD36KP26AE3/TR is validated for both short- and long-distance configurations per DO-160G requirements.
What is the polarity and marking convention for the MPLAD36KP26AE3/TR?
The MPLAD36KP26AE3/TR is a unidirectional TVS diode with the cathode located on the metal base (bottom side) and the anode on the top-side metallization. Polarity is indicated by the "A" suffix in the part number (versus "CA" for bidirectional versions). The device body is laser-marked with the full part number, and the e3 suffix confirms RoHS-compliant matte-tin plating per MIL-STD-750 Method 2026.
MPLAD36KP26AE3/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):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 43V
- Current - Peak Pulse (10/1000µs):
- 838A
- 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
MPLAD36KP26AE3/TR FAQ
1.How can I place an order for MPLAD36KP26AE3/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP26AE3/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 MPLAD36KP26AE3/TR reliable?
The price and inventory of MPLAD36KP26AE3/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP26AE3/TR is usually 5 days.
3.What payment methods are accepted for MPLAD36KP26AE3/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP26AE3/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP26AE3/TR?
MPLAD36KP26AE3/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP26AE3/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 MPLAD36KP26AE3/TR?
For technical support, including MPLAD36KP26AE3/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP26AE3/TR requirements.
6.How does Aetrix verify that MPLAD36KP26AE3/TR is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP26AE3/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 MPLAD36KP26AE3/TR meets industry standards.
7.What is the process for return or replacement of MPLAD36KP26AE3/TR?
All MPLAD36KP26AE3/TR units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP26AE3/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 MPLAD36KP26AE3/TR part is unused and in its original packaging.
Return procedure for MPLAD36KP26AE3/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP26AE3/TR Tags
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