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Microchip Technology MPLAD36KP75CAE3/TR
- Part No.:
- MPLAD36KP75CAE3/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP75CAE3/TR.pdf
- Description:
- SURFACE MOUNT 36,000 WATT, TVS,
- Quantity:
- Payment:
- Shipping:
Inventory:8,826
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Product details
Overview
MPLAD36KP75CAE3/TR from Microsemi (now Microchip) is a bidirectional surface-mount transient voltage suppressor (TVS) rated for 36,000 W peak pulse power at 10/1000 μs, with 75 V working standoff voltage (VWM), 83.3–92.1 V breakdown voltage (VBR), and 121 V clamping voltage (VC) at 298 A peak impulse current - designed for secondary lightning protection and automotive load dump suppression in aerospace and industrial power rails.
For engineers reviewing the MPLAD36KP75CAE3/TR datasheet, MPLAD36KP75CAE3/TR pinout, MPLAD36KP75CAE3/TR application, or MPLAD36KP75CAE3/TR equivalent, key selection criteria include bidirectional polarity, IEC 61000-4-5 Class 5 compliance (42 Ω source), RTCA/DO-160G Waveform 4 Level 4 capability, thermal resistance of 1.0 °C/W (junction-to-case), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device operates as a silicon avalanche diode-based TVS, leveraging low-differential-resistance clamping during transients to limit voltage across protected circuits. Its bidirectional construction enables symmetrical surge suppression on AC or differential signal lines without polarity sensitivity.
It delivers 36 kW peak pulse power handling with <5 ns response time (bidirectional), junction-to-case thermal resistance of 1.0 °C/W, and is qualified to AEC-Q101 - confirming suitability for automotive under-hood environments where thermal cycling and vibration resilience are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 75 V - maximum continuous DC or repetitive peak reverse voltage the device blocks without conduction; sets minimum system operating voltage margin. |
| VBR | 83.3–92.1 V at 5 mA - breakdown onset range; ensures reliable turn-on before downstream IC damage thresholds. |
| VC | 121 V at 298 A (10/1000 μs) - clamped voltage during worst-case surge; defines maximum stress seen by protected circuitry. |
| IPP | 298 A - peak non-repetitive surge current it withstands; supports IEC 61000-4-5 Class 5 (42 Ω source) and DO-160G Waveform 4 Level 4. |
| RθJC | 1.0 °C/W - enables efficient heat transfer to heatsink or PCB copper; critical for sustained multi-stroke event recovery. |
| αV(BR) | 98 mV/°C - temperature coefficient of breakdown voltage; informs derating over –55°C to +150°C operating range. |
| Package | PLAD - surface-mount, metal-base package with void-free epoxy body (UL94V-0); cathode on metal backside for thermal and electrical grounding. |
Pinout & Package
PLAD package: surface-mount, low-profile thermoset epoxy body with exposed metal base acting as cathode terminal. Dimensions: 10.2 mm × 8.5 mm × 3.5 mm (L × W × H). Cathode is electrically and thermally connected to the metal base; anode is the top-side metallized pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal Base (Bottom) | Cathode | Primary current return path and thermal interface; must be soldered to large copper pour or heatsink for RθJC = 1.0 °C/W performance. |
| Top Metallized Pad | Anode | Transient current entry point; connects to line being protected (e.g., 24 V rail, CAN bus, sensor input). |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables symmetric surge suppression on AC-coupled or differential lines (e.g., RS-485, Ethernet PHY) without polarity concerns. |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control units and ADAS power supplies subject to thermal shock and humidity. |
| RTCA/DO-160G Waveform 4 Level 4 compliance | Meets aircraft pin-injection immunity requirement (6.4/69 μs, 25 °C), supporting avionics interface protection. |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement per IPC/JEDEC J-STD-020D.1 - simplifies SMT assembly and reduces handling cost. |
| 3σ lot norm screening on ID | Ensures consistent standby leakage (<10 µA at 75 V), critical for low-power battery-backed systems. |
Applications
| Aerospace Power Distribution | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Protecting 28 V DC distribution buses in commercial aircraft against lightning-induced surges per RTCA/DO-160G Section 22. IC Role / Device Role / Timing Role: Bidirectional TVS placed at bus entry points to clamp transients before they reach power converters and flight control sensors. Use Value: Withstands multi-stroke events up to 36 kW and meets Level 4 pin injection (Waveform 4), enabling certification without external shielding or filtering. | Use Scenario: Safeguarding 12 V/24 V power inputs of engine control modules against load dump spikes (ISO 16750-2) and alternator transients. IC Role / Device Role / Timing Role: Primary surge suppression element mounted directly at ECU power connector, clamping within <5 ns to limit voltage to ≤121 V. Use Value: AEC-Q101 qualification and 150 °C max junction temperature ensure operation under hood temperatures while maintaining IPP = 298 A rating. |
| Industrial Motor Drive DC Bus | Telecom Power Interface |
Use Scenario: Secondary protection on 400 V DC bus of variable-frequency drives exposed to switching transients and induced RFI from IGBT commutation. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing energy from fast-rising dv/dt events that bypass upstream MOVs or filters. Use Value: 1.0 °C/W RθJC allows direct mounting to aluminum heatsink, enabling rapid thermal recovery between motor start-stop cycles. | Use Scenario: Surge protection on -48 V telecom power feeds entering remote radio units (RRUs), subjected to IEC 61000-4-5 Class 4 (12 Ω source). IC Role / Device Role / Timing Role: Bidirectional clamping device placed after DC-DC converter input to protect isolated power stage from line-to-ground surges. Use Value: VC = 121 V at 298 A ensures downstream DC-DC controller ICs (e.g., MAX5035) remain below absolute maximum ratings during 4 kV tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75CA | Lower peak power (600 W), smaller SMB package, higher VC/VWM ratio (120 V @ 75 V), no AEC-Q101 or DO-160G validation. | Suitable only for low-energy consumer electronics; insufficient for automotive load dump or aircraft lightning standards. | Select when cost and board space constrain requirements and surge energy remains below 100 A (10/1000 μs). |
| SMCJ75CA | Higher peak power (1500 W), larger SMC package, same VWM/VC but unqualified for DO-160G or AEC-Q101; RθJC ≈ 3.5 °C/W. | Acceptable for industrial PLC I/O protection but lacks aerospace certification and thermal performance for high-duty-cycle use. | Choose if legacy SMC footprint compatibility is required and multi-stroke testing is not mandated. |
Compared with SMBJ75CA and SMCJ75CA, MPLAD36KP75CAE3/TR delivers 24× and 24× higher peak power respectively, certified compliance with RTCA/DO-160G and AEC-Q101, and superior thermal management (RθJC = 1.0 °C/W), making it the only option for mission-critical aerospace and automotive power rail protection.
Availability
MPLAD36KP75CAE3/TR is available at Aetrix Electronics and suitable for aerospace power distribution, automotive ECU protection, and industrial motor drive DC bus applications requiring stable component supply, long-term lifecycle support, and certified surge immunity.
Supply support for MPLAD36KP75CAE3/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 MPLAD36KP series belongs to Microsemi's high-power surface-mount TVS portfolio, engineered specifically for multi-stroke lightning protection and automotive load dump compliance in harsh-environment systems.
FAQ
What is the clamping voltage of MPLAD36KP75CAE3/TR at its rated peak pulse current?
The MPLAD36KP75CAE3/TR has a maximum clamping voltage (VC) of 121 V when subjected to its rated peak impulse current of 298 A under the 10/1000 μs waveform. This value is measured per standard test conditions at 25 °C and defines the upper voltage limit imposed on protected circuitry during a full-rated surge event. The MPLAD36KP75CAE3/TR maintains this clamping performance across its specified operating temperature range with appropriate thermal management.
Is MPLAD36KP75CAE3/TR qualified for automotive applications?
Yes, MPLAD36KP75CAE3/TR is AEC-Q101 qualified, confirming its reliability for automotive electronic systems including engine control units, body control modules, and ADAS power supplies. It meets requirements for temperature cycling, mechanical shock, and humidity exposure. Its 75 V working standoff and 121 V clamping voltage align with ISO 16750-2 load dump profiles, and its bidirectional construction supports protection of both positive and negative transients common in 12 V/24 V vehicle architectures.
Does MPLAD36KP75CAE3/TR meet RTCA/DO-160G lightning protection standards?
Yes, MPLAD36KP75CAE3/TR is validated for RTCA/DO-160G Section 22 lightning-induced transient suppression and specifically meets Waveform 4 (6.4/69 μs) Level 4 requirements at 25 °C. Its 36 kW peak power rating and <5 ns response time enable compliance with multi-stroke lightning testing protocols used in commercial aircraft certification. The device's low RθJC (1.0 °C/W) supports thermal recovery between sequential strokes.
What is the thermal resistance and how does it affect MPLAD36KP75CAE3/TR layout?
MPLAD36KP75CAE3/TR has a junction-to-case thermal resistance (RθJC) of 1.0 °C/W, achieved only when the metal base (cathode) is soldered to a thermally robust copper area or heatsink. Layout must follow the recommended pad dimensions in Figure 7 of the datasheet - a minimum 10.2 mm × 8.5 mm exposed copper pad with multiple thermal vias to inner ground planes. Inadequate thermal design increases junction temperature, reducing surge endurance and potentially triggering premature failure during repeated transients.
How does the "CA" suffix and "E3/TR" in MPLAD36KP75CAE3/TR indicate its specifications?
The "CA" suffix denotes bidirectional polarity, meaning the MPLAD36KP75CAE3/TR provides symmetrical clamping for both positive and negative transients - essential for AC lines or differential interfaces. "E3" indicates RoHS-compliant matte-tin plating per MIL-STD-750, and "TR" specifies tape-and-reel packaging per EIA-481-B. Together, these identifiers confirm the device's construction, environmental compliance, and logistics format - all verified in Table 1 (Part Nomenclature) and Table 5 (Mechanical and Packaging) of the official datasheet.
MPLAD36KP75CAE3/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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 75V
- Voltage - Breakdown (Min):
- 83.3V
- Voltage - Clamping (Max) @ Ipp:
- 121V
- Current - Peak Pulse (10/1000µs):
- 298A
- 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
MPLAD36KP75CAE3/TR FAQ
1.How can I place an order for MPLAD36KP75CAE3/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP75CAE3/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 MPLAD36KP75CAE3/TR reliable?
The price and inventory of MPLAD36KP75CAE3/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP75CAE3/TR is usually 5 days.
3.What payment methods are accepted for MPLAD36KP75CAE3/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP75CAE3/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP75CAE3/TR?
MPLAD36KP75CAE3/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP75CAE3/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 MPLAD36KP75CAE3/TR?
For technical support, including MPLAD36KP75CAE3/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP75CAE3/TR requirements.
6.How does Aetrix verify that MPLAD36KP75CAE3/TR is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP75CAE3/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 MPLAD36KP75CAE3/TR meets industry standards.
7.What is the process for return or replacement of MPLAD36KP75CAE3/TR?
All MPLAD36KP75CAE3/TR units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP75CAE3/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 MPLAD36KP75CAE3/TR part is unused and in its original packaging.
Return procedure for MPLAD36KP75CAE3/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP75CAE3/TR Tags
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