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Microchip Technology MPLAD36KP22AE3/TR
- Part No.:
- MPLAD36KP22AE3/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP22AE3/TR.pdf
- Description:
- SURFACE MOUNT 36,000 WATT, TVS,
- Quantity:
- Payment:
- Shipping:
Inventory:3,857
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Product details
Overview
MPLAD36KP22AE3/TR from Microsemi is a unidirectional surface-mount transient voltage suppressor (TVS) rated for 36,000 W peak pulse power at 10/1000 μs, with 22 V working standoff voltage (VWM), 24.4–26.9 V breakdown voltage (VBR), and 36.4 V clamping voltage (VC) at 990 A peak impulse current - designed for lightning and load dump protection in aerospace and automotive power rails.
For engineers reviewing the MPLAD36KP22AE3/TR datasheet, MPLAD36KP22AE3/TR pinout, MPLAD36KP22AE3/TR application, or MPLAD36KP22AE3/TR equivalent, this device delivers verified RTCA DO-160 Section 22 multi-stroke lightning compliance, AEC-Q101 qualification, and IEC 61000-4-5 Class 4/5 secondary surge protection with 42 Ω source impedance - critical for avionics power input stages and 24 V vehicle ECUs.
Technical Context
This TVS diode operates in avalanche breakdown mode to clamp transients above VWM, achieving sub-100 ps response time in unidirectional configuration with cathode on the metal baseplate. Its low RθJC of 1.0 °C/W enables effective thermal coupling to PCB copper pours or heatsinks under repetitive surge conditions.
Designed for high-reliability environments, it features wafer and assembly lot traceability, 3σ screening on standby current (ID ≤ 10 µA at VWM), and moisture sensitivity level 1 per J-STD-020D.1 - eliminating dry pack requirements and supporting standard SMT reflow profiles up to 260 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - maximum continuous DC or peak reverse operating voltage before conduction begins; matches nominal 24 V system rails with margin. |
| VBR @ IBR=5 mA | 24.4–26.9 V - guaranteed breakdown onset range; ensures reliable turn-on before downstream component damage thresholds. |
| VC @ IPP=990 A | 36.4 V - clamped voltage during full-rated 10/1000 μs surge; limits stress on protected ICs to safe levels. |
| IPP | 990 A - peak non-repetitive impulse current capability; supports IEC 61000-4-5 Level 4/5 testing with 42 Ω source. |
| RθJC | 1.0 °C/W - junction-to-case thermal resistance; enables direct thermal path to heatsink or large copper area for sustained surge handling. |
| ID @ VWM | ≤10 µA - ultra-low leakage at rated standoff; prevents parasitic loading on sensitive 24 V sensor or control circuits. |
| Package | PLAD - surface-mount thermoset epoxy package with metal baseplate cathode; optimized for low-inductance, high-current surge paths. |
Pinout & Package
PLAD package features a two-terminal construction: anode (top metallization) and cathode (exposed metal baseplate). The cathode serves as the primary thermal and electrical return path - must be soldered to a minimum 100 mm² copper pour or heatsink for rated performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive surge current entry point | Connected to protected line (e.g., 24 V rail); carries full transient current into device during clamping. |
| Cathode | Common reference and thermal interface | Exposed metal baseplate - must be soldered to PCB ground plane or heatsink; defines low-inductance return path and thermal dissipation path. |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW peak pulse rating (10/1000 μs) | Enables single-device protection against severe automotive load dump (ISO 7637-2 Pulse 5a) and aircraft lightning-induced surges (RTCA DO-160G Section 22). |
| AEC-Q101 qualified | Validated for automotive under-hood and powertrain applications with temperature cycling, HTRB, and surge endurance testing per stress test plan. |
| Moisture Sensitivity Level 1 | Eliminates baking or dry pack requirements prior to reflow; compatible with standard J-STD-020-compliant SMT lines without process modification. |
| RoHS-compliant (e3 suffix) | Meets EU RoHS Directive 2011/65/EU and China RoHS II; matte-tin plating ensures solderability and long-term storage stability. |
| Lot traceability & 3σ ID screening | Supports aerospace and medical BOM audits; guarantees ≤10 µA leakage across production lots for consistent system-level leakage budgets. |
Applications
| Aerospace Power Input Protection | Automotive 24 V ECU Protection |
|---|---|
Use Scenario: Primary DC input stage of flight control computers and avionics displays exposed to lightning-induced transients per RTCA DO-160G Section 22 Waveform 4 (6.4/69 μs) and Waveform 5A (40/120 μs). IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed directly at connector entry point to shunt surge energy before reaching DC/DC converters and microcontrollers. Use Value: Achieves Level 4/5 pin injection protection with VC = 36.4 V, limiting voltage seen by downstream 3.3 V/5 V logic to survivable levels without derating. |
Use Scenario: 24 V supply rail protection in engine control units (ECUs), transmission control modules (TCMs), and ADAS domain controllers subjected to ISO 7637-2 Pulse 5a load dump events. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected between battery rail and ground, activated within <100 ps to suppress 120 V/400 ms transients. Use Value: Withstands 990 A peak current while clamping to 36.4 V - preserving MOSFET gate drivers and CAN transceivers rated for ≤40 V absolute maximum. |
| Industrial 24 V PLC I/O Protection | Railway Signaling Power Interface |
Use Scenario: Digital input/output terminals of programmable logic controllers (PLCs) interfacing with field sensors and actuators in factory automation environments prone to inductive switching transients. IC Role / Device Role / Timing Role: Front-end transient suppressor on each 24 V channel, placed before optocoupler or digital isolator inputs. Use Value: Low 10 µA standby current avoids false triggering of high-impedance 24 V sink inputs; fast response prevents latch-up in upstream interface ICs. |
Use Scenario: 24 V/110 V DC power interface in railway signaling cabinets exposed to traction current surges and electromagnetic coupling from adjacent tracks per EN 50121-3-2. IC Role / Device Role / Timing Role: Secondary surge protector installed after primary MOV-based protection, providing precise clamping for sensitive relay driver circuits. Use Value: 36.4 V clamping voltage ensures protected solid-state relays remain below their 40 V VDS limit during 1 kV/2 kA surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | Lower 400 W peak power rating; SMA package with higher RθJA (95 °C/W); VC = 35.5 V @ 12.3 A. | Only suitable for low-energy transients (IEC 61000-4-4 EFT); insufficient for DO-160G Section 22 or ISO 7637-2 Pulse 5a. | Select only for cost-sensitive industrial controls where surge threat level is limited to ESD/EFT. |
| SMCJ22A | 1500 W peak power; SMC package; VC = 35.5 V @ 43.4 A; RθJC = 3.5 °C/W - less efficient thermal transfer than PLAD. | Acceptable for automotive load dump if derated to 200 A peak; fails DO-160G multi-stroke testing due to cumulative heating. | Choose when board space allows larger SMC footprint and thermal management uses smaller copper areas. |
Compared with SMAJ22A and SMCJ22A, MPLAD36KP22AE3/TR delivers 24× and 2.4× higher peak power handling respectively, with superior thermal coupling (RθJC = 1.0 °C/W) and verified multi-stroke lightning endurance - making it the only option among the three qualified for avionics and heavy-duty automotive power rails.
Availability
MPLAD36KP22AE3/TR is available at Aetrix Electronics and suitable for aerospace power input protection, automotive 24 V ECU protection, and industrial 24 V PLC I/O protection requiring stable component supply across extended production lifecycles.
Supply support for MPLAD36KP22AE3/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 (now part of Microchip Technology) 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 was developed specifically for high-energy transient suppression in safety-critical systems - emphasizing multi-stroke surge endurance, lot traceability, and AEC-Q101/DO-160 compliance over cost-optimized consumer-grade TVS devices.
FAQ
What is the clamping voltage of MPLAD36KP22AE3/TR at its rated peak pulse current?
The MPLAD36KP22AE3/TR has a maximum clamping voltage (VC) of 36.4 V when subjected to its rated 990 A peak impulse current (IPP) under the 10/1000 μs waveform. This value is guaranteed across temperature and production lots, ensuring predictable protection margins for downstream 3.3 V, 5 V, and 24 V logic interfaces connected to the same rail.
Is MPLAD36KP22AE3/TR qualified for automotive applications?
Yes, MPLAD36KP22AE3/TR is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and surge endurance specific to automotive under-hood environments. Its 22 V VWM and 36.4 V VC align with 24 V system requirements, and it is routinely deployed in engine control units and ADAS domain controllers for load dump protection.
How does the PLAD package of MPLAD36KP22AE3/TR improve thermal performance compared to SMA or SMC packages?
The PLAD package of MPLAD36KP22AE3/TR features an exposed metal baseplate that serves as both the cathode terminal and primary thermal interface. With a junction-to-case thermal resistance (RθJC) of just 1.0 °C/W - versus 95 °C/W for SMAJ22A and 3.5 °C/W for SMCJ22A - it enables direct conduction of surge heat into PCB copper or external heatsinks, preventing thermal runaway during repetitive transients.
Can MPLAD36KP22AE3/TR be used for bidirectional surge protection?
No, MPLAD36KP22AE3/TR is a unidirectional TVS diode, indicated by the "A" suffix (not "CA"). It conducts only during reverse-biased overvoltage events on the anode relative to cathode. For bidirectional protection - such as AC line or data bus applications - a part with "CA" suffix (e.g., MPLAD36KP22CAE3/TR) must be selected instead.
What is the maximum steady-state power dissipation of MPLAD36KP22AE3/TR at 100 °C case temperature?
At a case temperature (TC) of 100 °C, the MPLAD36KP22AE3/TR supports a steady-state power dissipation (PD) of 504 W, as specified in the Absolute Maximum Ratings table. This rating assumes proper thermal mounting to a heatsink or large copper area - not ambient operation - and is distinct from its 36,000 W transient pulse rating.
MPLAD36KP22AE3/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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PLAD
MPLAD36KP22AE3/TR FAQ
1.How can I place an order for MPLAD36KP22AE3/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP22AE3/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 MPLAD36KP22AE3/TR reliable?
The price and inventory of MPLAD36KP22AE3/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP22AE3/TR is usually 5 days.
3.What payment methods are accepted for MPLAD36KP22AE3/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP22AE3/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP22AE3/TR?
MPLAD36KP22AE3/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP22AE3/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 MPLAD36KP22AE3/TR?
For technical support, including MPLAD36KP22AE3/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP22AE3/TR requirements.
6.How does Aetrix verify that MPLAD36KP22AE3/TR is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP22AE3/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 MPLAD36KP22AE3/TR meets industry standards.
7.What is the process for return or replacement of MPLAD36KP22AE3/TR?
All MPLAD36KP22AE3/TR units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP22AE3/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 MPLAD36KP22AE3/TR part is unused and in its original packaging.
Return procedure for MPLAD36KP22AE3/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP22AE3/TR Tags
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