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Microchip Technology MPLAD36KP14A/TR
- Part No.:
- MPLAD36KP14A/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP14A/TR.pdf
- Description:
- SURFACE MOUNT 36,000 WATT, TVS,
- Quantity:
- Payment:
- Shipping:
Inventory:8,499
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Product details
Overview
MPLAD36KP14A/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 14 V working standoff voltage (VWM), 15.6–17.2 V breakdown voltage (VBR), and 24.0 V clamping voltage (VC) at 3000 A peak impulse current - designed for lightning and load dump protection in aerospace and automotive power rails.
For engineers reviewing the MPLAD36KP14A/TR datasheet, MPLAD36KP14A/TR pinout, MPLAD36KP14A/TR application, or MPLAD36KP14A/TR equivalent, key selection criteria include its 1.0 °C/W junction-to-case thermal resistance, <100 ps response time, AEC-Q101 qualification, RTCA DO-160 Section 22 compliance, and low-profile PLAD package optimized for high-energy surge dissipation without PCB layout compromise.
Technical Context
This TVS diode operates in avalanche breakdown mode to clamp transient overvoltages above its VWM, delivering precise voltage limiting with 24.0 V clamping at 3000 A (10/1000 μs). Its metal-base cathode construction enables direct thermal coupling to heatsinks, supported by RθJC = 1.0 °C/W and RθJA = 50 °C/W on FR4.
It meets IEC 61000-4-5 (42 Ω, 12 Ω, 2 Ω source impedances), IEC 61000-4-2/4-4, and RTCA/DO-160G Waveform 4 & 5A pin injection requirements - validated for Level 4/5 protection across multiple standoff voltages, with temperature coefficient αV(BR) = 10 mV/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V maximum continuous reverse standoff voltage - sets minimum system operating voltage threshold before clamping initiates |
| VBR | 15.6–17.2 V at 150 mA - defines precise avalanche onset range for predictable turn-on behavior |
| VC | 24.0 V at IPP = 3000 A (10/1000 μs) - ensures protected circuitry sees no more than 24 V during worst-case surge |
| IPP | 3000 A peak pulse current - supports multi-stroke lightning events per RTCA DO-160 Section 22 |
| RθJC | 1.0 °C/W - enables efficient heat transfer from junction to heatsink, critical for repetitive surge handling |
| Response Time | <100 ps - guarantees sub-nanosecond reaction to fast-rising transients like ESD or switching spikes |
| AEC-Q101 | Qualified - validates reliability for automotive under-hood and powertrain applications |
Pinout & Package
The MPLAD36KP14A/TR uses the PLAD surface-mount package: a low-profile, void-free thermosetting epoxy body (UL94V-0) with a metal base serving as the cathode terminal. The anode is the top metallized surface; polarity is marked via body orientation and cathode-down mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal Base (Bottom) | Cathode | Primary heat path and return node - must be soldered to large copper pour or heatsink for thermal management |
| Top Metallized Surface | Anode | Transient input node - connects to protected line (e.g., 12 V battery rail or CAN bus) |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW Peak Pulse Power | Enables single-device protection against severe load dump (ISO 7637-2 Pulse 5a/b) and lightning-induced surges without cascading devices |
| Low Thermal Resistance (RθJC = 1.0 °C/W) | Allows sustained energy dissipation into external heatsinks - essential for aerospace avionics with limited airflow |
| RTCA DO-160G Compliance (Waveform 4 & 5A) | Validated for aircraft pin injection testing up to Level 5 - eliminates need for additional filtering stages in flight control systems |
| AEC-Q101 Qualification | Confirms robustness across automotive temperature (-55 °C to +150 °C) and vibration profiles for engine control units and ADAS power supplies |
| Moisture Sensitivity Level 1 | Permits standard SMT reflow without dry-pack preconditioning - reduces manufacturing cost and handling complexity |
Applications
| Aerospace Avionics Power Protection | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Protecting 28 V DC power inputs of flight management computers against lightning-induced transients per RTCA DO-160 Section 22. IC Role / Device Role / Timing Role: Primary clamping device on main power rail - absorbs multi-stroke surges while maintaining <24 V clamping to preserve downstream DC/DC converters. Use Value: Eliminates need for series impedance or secondary TVS stacks, reducing BOM count and board space in SWaP-constrained avionics enclosures. | Use Scenario: Safeguarding 12 V supply lines in gasoline/diesel ECUs from ISO 7637-2 Pulse 5a (load dump) events reaching 60 V/100 ms. IC Role / Device Role / Timing Role: Unidirectional TVS placed directly at battery connector - clamps within 100 ps to prevent gate oxide damage in microcontroller power regulators. Use Value: Withstands >3000 A peak current without degradation, enabling single-point protection compliant with OEM Tier-1 durability requirements. |
| Industrial Motor Drive DC Bus | Railway Signaling Power Interface |
Use Scenario: Shielding 48 V DC bus in variable-frequency drives from IGBT switching transients and inductive kickback. IC Role / Device Role / Timing Role: High-power TVS mounted on bus bar near power stage - diverts >36 kW surge energy away from gate drivers and current sensors. Use Value: Junction-to-case thermal path allows direct mounting to aluminum chassis, achieving stable operation at 100 °C ambient without derating. | Use Scenario: Securing 110 V DC signaling interfaces in European railway signaling cabinets against EFT bursts (IEC 61000-4-4) and lightning coupling (IEC 61000-4-5). IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional variant used in back-to-back configuration - provides symmetric clamping for AC-coupled data/power hybrid lines. Use Value: 14 V VWM permits use on low-voltage logic-supply rails while maintaining margin over 12 V nominal, ensuring no false triggering during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ14A/TR | Lower peak power (600 W), smaller SMB package, RθJC = 15 °C/W, VC = 23.2 V @ 31.3 A | Targeted at consumer electronics and low-energy industrial I/O - insufficient for DO-160 or ISO 7637-2 Pulse 5 | Select only for cost-sensitive, low-surge environments where 36 kW capability is unnecessary |
| SMCJ14A/TR | Medium power (1500 W), SMC package, RθJC = 3.5 °C/W, VC = 23.2 V @ 64.5 A | Suitable for automotive body electronics and telecom power inputs - lacks RTCA DO-160 validation and AEC-Q101 full qualification | Use when higher surge rating than SMBJ is needed but full aerospace certification is not required |
Compared with SMBJ14A/TR and SMCJ14A/TR, the MPLAD36KP14A/TR delivers 60× and 24× higher peak pulse power respectively, with certified aerospace compliance, lower thermal resistance, and validated multi-stroke endurance - making it the sole choice for mission-critical power rail protection where failure is not an option.
Availability
MPLAD36KP14A/TR is available at Aetrix Electronics and suitable for aerospace avionics, automotive engine control units, industrial motor drives, and railway signaling systems requiring stable component supply across extended product lifecycles.
Supply support for MPLAD36KP14A/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 MPLAD36KP14A/TR belongs to Microsemi's high-power PLAD TVS family, engineered specifically for extreme-energy transient suppression in safety-critical systems where thermal performance and regulatory compliance are non-negotiable.
FAQ
What is the clamping voltage of MPLAD36KP14A/TR at its rated peak pulse current?
The MPLAD36KP14A/TR has a maximum clamping voltage (VC) of 24.0 V when subjected to a 3000 A peak impulse current with a 10/1000 μs waveform. This value is measured under standardized test conditions and ensures protected circuitry remains below 24 V during worst-case surge events. The MPLAD36KP14A/TR maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is MPLAD36KP14A/TR qualified for automotive applications?
Yes, the MPLAD36KP14A/TR is AEC-Q101 qualified, confirming its suitability for automotive power electronics including engine control units, battery management systems, and ADAS power supplies. It meets rigorous stress tests for temperature cycling, humidity, mechanical shock, and surge endurance - all validated per the AEC-Q101 standard. The MPLAD36KP14A/TR also supports ISO 7637-2 Pulse 5a/b load dump protection in 12 V and 24 V vehicle architectures.
How does the PLAD package of MPLAD36KP14A/TR improve thermal performance compared to standard SMC or SMB packages?
The PLAD package of MPLAD36KP14A/TR features a metal base that serves as both the cathode terminal and primary thermal conduction path, achieving a junction-to-case thermal resistance (RθJC) of just 1.0 °C/W - over 10× better than typical SMC packages (~3.5 °C/W) and ~30× better than SMB packages (~15 °C/W). This enables the MPLAD36KP14A/TR to dissipate 36 kW surges repeatedly without thermal runaway when mounted to an external heatsink or large copper plane.
Does MPLAD36KP14A/TR meet RTCA DO-160 lightning protection requirements?
Yes, the MPLAD36KP14A/TR is explicitly validated for RTCA DO-160 Section 22 multi-stroke lightning testing and pin injection per Waveform 4 (6.4/69 μs) and Waveform 5A (40/120 μs). It achieves Level 4 and Level 5 protection across its voltage range, including MPLAD36KP14A/TR for Waveform 4 up to 400 V standoff. This makes the MPLAD36KP14A/TR suitable for primary and secondary lightning protection in commercial and military aircraft avionics.
What is the polarity and marking convention for MPLAD36KP14A/TR?
The MPLAD36KP14A/TR is a unidirectional TVS diode with cathode on the metal base (bottom side) and anode on the top metallized surface. Polarity is indicated by physical orientation: the cathode must be soldered to the system ground or low-impedance return path. The device body is laser-marked with "MPLAD36KP14A" and RoHS-compliant "e3" suffix; no separate polarity symbol is printed, as orientation is defined by package geometry and mounting requirement.
MPLAD36KP14A/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):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 24V
- Current - Peak Pulse (10/1000µs):
- 1500A (1.5kA)
- 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
MPLAD36KP14A/TR FAQ
1.How can I place an order for MPLAD36KP14A/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP14A/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 MPLAD36KP14A/TR reliable?
The price and inventory of MPLAD36KP14A/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP14A/TR is usually 5 days.
3.What payment methods are accepted for MPLAD36KP14A/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP14A/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP14A/TR?
MPLAD36KP14A/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP14A/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 MPLAD36KP14A/TR?
For technical support, including MPLAD36KP14A/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP14A/TR requirements.
6.How does Aetrix verify that MPLAD36KP14A/TR is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP14A/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 MPLAD36KP14A/TR meets industry standards.
7.What is the process for return or replacement of MPLAD36KP14A/TR?
All MPLAD36KP14A/TR units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP14A/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 MPLAD36KP14A/TR part is unused and in its original packaging.
Return procedure for MPLAD36KP14A/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP14A/TR Tags
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