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Microchip Technology MPLAD36KP22AE3
- Part No.:
- MPLAD36KP22AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP22AE3.pdf
- Description:
- TVS DIODE 22VWM 36.4VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:2,705
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Product details
Overview
MPLAD36KP22AE3 from Microsemi is a unidirectional 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, features a 22 V reverse standoff voltage (VWM), clamps to ≤36.4 V at 990 A peak impulse current, and operates across –55°C to +150°C junction temperature. It is widely deployed in aircraft lightning protection per RTCA DO-160 Section 22 and automotive load dump suppression.
For engineers reviewing the MPLAD36KP22AE3 datasheet, MPLAD36KP22AE3 pinout, MPLAD36KP22AE3 application, or MPLAD36KP22AE3 equivalent, this device is evaluated for secondary lightning protection (IEC 61000-4-5), pin-injection immunity (RTCA DO-160F Waveform 4 & 5A), ESD/EFT robustness (IEC 61000-4-2/4-4), and high-reliability deployment under MIL-PRF-19500 upscreening options.
Technical Context
This TVS diode employs an avalanche breakdown mechanism to clamp transients within nanoseconds, with <5 ns response time for bidirectional variants and sub-100 ps for unidirectional devices like MPLAD36KP22AE3. Its low thermal resistance (RθJC = 1.0 °C/W) enables efficient heat transfer to the PCB copper pad, supporting repeated multi-stroke surge events without degradation.
The device is rated for 36,000 W peak pulse power under standardized 10/1000 μs waveform, with clamping voltage VC = 36.4 V at IPP = 990 A. It meets AEC-Q101 stress testing requirements and supports RoHS-compliant (e3) matte-tin terminations solderable per MIL-STD-750 Method 2026.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - sustains aircraft-grade lightning surges without failure |
| Reverse Standoff Voltage (VWM) | 22 V - matches nominal 24 V DC system rails while allowing margin for ripple and transients |
| Breakdown Voltage (V(BR)) | 24.4–26.9 V @ 5 mA - ensures reliable avalanche initiation before downstream circuit damage |
| Max Clamping Voltage (VC) | 36.4 V @ 990 A - limits protected IC voltage to safe levels during worst-case surge |
| Standby Current (ID) | 10 μA @ 22 V - negligible leakage in standby, critical for low-power avionics monitoring circuits |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables direct thermal coupling to heatsink pads on FR4, avoiding thermal runaway |
| Operating Temperature Range | –55°C to +150°C - qualified for engine bay, flight control, and space-constrained industrial enclosures |
Pinout & Package
Package: PLAD (Plastic Leaded Anode Down) - low-profile surface-mount package with metal base cathode termination; dimensions: 12.32 × 10.54 × 5.08 mm (L × W × H); weight: ~1.7–2.0 g; UL94V-0 epoxy body; RoHS-compliant matte-tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Top Surface Pad) | Positive input terminal for unidirectional operation | Soldered to signal/power line requiring protection; polarity-marked on body |
| Cathode (Metal Base) | Ground reference / surge return path | Direct thermal and electrical connection to large copper pour or heatsink; lowest-inductance path for surge energy dissipation |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW Surge Rating | Validated for RTCA DO-160 Section 22 multi-stroke lightning - enables single-device compliance without external crowbar circuits |
| Low RθJC (1.0 °C/W) | Enables >95% of surge energy to conduct into PCB copper, reducing localized heating and improving reliability over repeated events |
| AEC-Q101 Qualified | Passes stress tests including HTGB, HTRB, and temperature cycling - suitable for automotive powertrain and chassis modules |
| e3 RoHS Compliance | Matte-tin plating ensures lead-free assembly compatibility and eliminates tin whisker risk in long-life avionics deployments |
| Level 4/5 Pin Injection Immunity | Withstands RTCA DO-160F Waveform 4 (6.4/69 μs) up to 300 V and Waveform 5A (40/120 μs) up to 38 V - protects against induced transients in wiring harnesses |
Applications
| Aircraft Avionics Power Input | Automotive 24 V Load Dump Protection |
|---|---|
Use Scenario: Protection of flight control computers and sensor interfaces connected to aircraft 28 V DC bus subject to lightning-induced surges per DO-160 Section 22. IC Role / Device Role / Timing Role: Primary transient shunt element placed at board-level power entry, clamping within <100 ps to prevent latch-up or gate oxide rupture in downstream PMICs and FPGAs. Use Value: Eliminates need for series impedance or additional filtering stages due to ultra-low clamping voltage (36.4 V) relative to 28 V rail, preserving system uptime and certification margin. |
Use Scenario: Guarding engine control units (ECUs) and ADAS domain controllers against alternator load dump spikes (up to 60 V, 400 ms) in commercial trucks and off-highway vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS mounted directly across input capacitors, conducting surge current away from LDOs and CAN transceivers during battery disconnect events. Use Value: Withstands ≥1000 surge cycles at 990 A without parameter shift, verified per AEC-Q101, ensuring functional safety compliance over full vehicle lifetime. |
| Industrial Motor Drive DC Bus | Railway Signaling Interface |
Use Scenario: Safeguarding IGBT gate drivers and current sense amplifiers in variable-frequency drives exposed to switching-induced transients and regenerative energy spikes. IC Role / Device Role / Timing Role: High-power TVS placed between DC+ and DC– bus rails, absorbing repetitive 36 kW pulses generated by fast IGBT turn-off and stray inductance. Use Value: 1.0 °C/W thermal resistance allows direct mounting on 2 oz copper thermal pads, enabling continuous operation at 0.05% duty cycle without derating - reduces heatsink size by 40% vs. legacy modules. |
Use Scenario: Protecting track-side signaling logic boards interfacing with 75 V DC track power, subjected to EFT bursts and lightning-coupled surges per EN 50121-4. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), clamping residual transients below 36.4 V to preserve RS-485 transceiver integrity. Use Value: Validated for IEC 61000-4-5 Class 4 (42 Ω source) up to 130 V VWM variants - MPLAD36KP22AE3 provides optimal balance of clamping headroom and system voltage margin for 75 V nominal rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A | 600 W PPP rating, 300 A IPP, DO-214AA package, RθJA = 40 °C/W | Limited to single-stroke surges; unsuitable for DO-160 multi-stroke or automotive load dump | Select only for cost-sensitive consumer electronics with <1 kA surge exposure |
| SMCJ22A | 1500 W PPP, 125 A IPP, DO-214AB package, RθJA = 25 °C/W | Clamps at 35.5 V but lacks AEC-Q101 qualification and DO-160 validation | Acceptable for industrial PLC I/O modules where multi-stroke testing is not mandated |
Compared with SMBJ22A and SMCJ22A, MPLAD36KP22AE3 delivers 24× and 24× higher peak pulse power respectively, validated clamping performance under multi-stroke conditions, and traceable lot-level screening - making it the sole choice for certified aerospace and high-reliability automotive power protection.
Availability
MPLAD36KP22AE3 is available at Aetrix Electronics and suitable for aircraft avionics, automotive ECUs, industrial motor drives, and railway signaling systems requiring stable component supply across extended product lifecycles and rigorous environmental qualification.
Supply support for MPLAD36KP22AE3 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, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The MPLAD series was developed specifically for high-energy transient suppression in safety-critical platforms where multi-stroke lightning immunity, thermal stability, and lot-traceable reliability are mandatory - not general-purpose surge suppression.
FAQ
What is the maximum clamping voltage of MPLAD36KP22AE3 at its rated peak pulse current?
The MPLAD36KP22AE3 has a maximum clamping voltage (VC) of 36.4 V when subjected to its rated peak impulse current of 990 A under the standard 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and is measured at the device terminals with proper PCB layout per the recommended pad dimensions in the datasheet. The clamping performance is integral to protecting downstream 24 V-rated ICs from overvoltage damage during surge events.
Is MPLAD36KP22AE3 qualified for automotive applications per AEC-Q101?
Yes, MPLAD36KP22AE3 is fully AEC-Q101 qualified, having passed all required stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), temperature cycling, and mechanical shock. This qualification confirms its suitability for under-hood automotive applications such as engine control units and ADAS power supplies where sustained reliability under thermal and electrical stress is mandatory. The device's e3 RoHS marking further supports compliance with automotive manufacturing standards.
How does the PLAD package of MPLAD36KP22AE3 improve thermal performance compared to standard SMC packages?
The PLAD package of MPLAD36KP22AE3 uses a metal base cathode that serves as both the electrical return path and primary thermal conduction surface, achieving a junction-to-case thermal resistance of just 1.0 °C/W - significantly lower than typical SMC packages (~2.5–3.5 °C/W). This design allows >90% of surge energy to dissipate directly into the PCB copper pour or external heatsink, minimizing junction temperature rise during repetitive surges and extending device lifetime in high-duty-cycle applications like motor drives and avionics.
Can MPLAD36KP22AE3 be used for RTCA DO-160 Section 22 lightning protection?
Yes, MPLAD36KP22AE3 is explicitly validated for RTCA DO-160 Section 22 multi-stroke lightning testing, including Waveform 4 (6.4/69 μs) Level 4 and Waveform 5A (40/120 μs) Level 4 per Microsemi's RF01216 datasheet. Its 36 kW rating, sub-100 ps response, and low clamping voltage ensure compliance without supplemental protection components. System-level validation requires adherence to the specified pad layout and grounding practices outlined in the application notes.
What is the meaning of the "E3" suffix in MPLAD36KP22AE3?
"E3" in MPLAD36KP22AE3 denotes RoHS-compliant matte-tin plating on the device terminals, conforming to JEDEC J-STD-020 moisture sensitivity level 1 (no dry pack required) and MIL-STD-750 Method 2026 solderability requirements. This finish eliminates lead content while preventing tin whisker growth, making MPLAD36KP22AE3 suitable for long-life, high-reliability deployments in aerospace and medical systems where material compliance and interconnect integrity are strictly controlled.
MPLAD36KP22AE3 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):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 36.4V
- Current - Peak Pulse (10/1000µs):
- 990A
- 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
MPLAD36KP22AE3 FAQ
1.How can I place an order for MPLAD36KP22AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP22AE3 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 MPLAD36KP22AE3 reliable?
The price and inventory of MPLAD36KP22AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP22AE3 is usually 5 days.
3.What payment methods are accepted for MPLAD36KP22AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP22AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP22AE3?
MPLAD36KP22AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP22AE3 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 MPLAD36KP22AE3?
For technical support, including MPLAD36KP22AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP22AE3 requirements.
6.How does Aetrix verify that MPLAD36KP22AE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP22AE3 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 MPLAD36KP22AE3 meets industry standards.
7.What is the process for return or replacement of MPLAD36KP22AE3?
All MPLAD36KP22AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP22AE3, 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 MPLAD36KP22AE3 part is unused and in its original packaging.
Return procedure for MPLAD36KP22AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP22AE3 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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