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Microchip Technology MPLAD36KP15A/TR
- Part No.:
- MPLAD36KP15A/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP15A/TR.pdf
- Description:
- SURFACE MOUNT 36,000 WATT, TVS,
- Quantity:
- Payment:
- Shipping:
Inventory:3,867
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Product details
Overview
MPLAD36KP15A/TR from Microsemi (now Microchip) is a unidirectional surface-mount transient voltage suppressor (TVS) rated for 36,000 W peak pulse power at 10/1000 μs, with 15 V working standoff voltage (VWM), 16.7–18.5 V breakdown voltage (VBR), and 25.8 V clamping voltage (VC) at 1500 A peak impulse current. It delivers lightning and load dump protection in aerospace avionics meeting RTCA DO-160 Section 22.
For engineers reviewing the MPLAD36KP15A/TR datasheet, MPLAD36KP15A/TR pinout, MPLAD36KP15A/TR application, or MPLAD36KP15A/TR equivalent, key selection criteria include its 1.0 °C/W junction-to-case thermal resistance, bidirectional-capable PLAD package footprint, IEC 61000-4-5 Class 5 compliance (short distance), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This TVS diode operates in avalanche breakdown mode to clamp transient overvoltages above its VWM, limiting downstream circuit voltage to ≤25.8 V during 1500 A surges. Its low 1.0 °C/W RθJC enables effective heat transfer to an external heatsink, critical for multi-stroke lightning events per DO-160G Waveform 4 and 5A.
The device features <100 ps response time (unidirectional), 3σ lot-norm screening on standby current (ID ≤ 750 µA), and moisture sensitivity level 1 - eliminating dry-pack requirements per J-STD-020D.1. It is RoHS-compliant (e3 marking) and qualified to AEC-Q101 for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous reverse operating voltage; must exceed system's peak DC or AC waveform. |
| VBR @ IBR | 16.7–18.5 V at 5 mA - Confirmed breakdown threshold range; ensures predictable turn-on before clamping. |
| VC @ IPP | 25.8 V at 1500 A - Clamped voltage during worst-case surge; defines maximum stress on protected ICs. |
| PPP | 36,000 W at 10/1000 μs - Peak power handling capacity; validates suitability for aircraft lightning standards. |
| RθJC | 1.0 °C/W - Enables direct thermal coupling to heatsink; supports >500 W steady-state dissipation at TC = 100 °C. |
| ID max | 750 µA at VWM - Low leakage ensures minimal power loss in always-on 12–24 V systems. |
| Response time | <100 ps - Sub-nanosecond turn-on guarantees protection against fast ESD and RFI-induced transients. |
Pinout & Package
The MPLAD36KP15A/TR uses the PLAD surface-mount package: a low-profile, thermally enhanced molded epoxy case with exposed metal cathode base (pin 1). The anode is connected to the top metallization; polarity is marked by cathode-side metal pad on bottom.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal base (bottom) | Cathode | Primary thermal path to PCB heatsink; must be soldered to ≥1 oz Cu thermal pad per Figure 7. |
| Top metallization | Anode | Signal-side connection; routed to protected line (e.g., CAN_H, LIN, 24 V rail). |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW surge rating | Validated per 10/1000 μs waveform; meets RTCA DO-160G Section 22 multi-stroke lightning test. |
| AEC-Q101 qualification | Ensures reliability in automotive 12 V/24 V systems including alternator load dump and jump-start scenarios. |
| Level 1 moisture sensitivity | Enables standard SMT reflow without baking; reduces manufacturing overhead and moisture-related delamination risk. |
| Wafer & assembly lot traceability | Supports full supply chain auditability for aerospace and defense programs requiring AS9100 compliance. |
| RoHS-compliant (e3) | Meets EU Directive 2011/65/EU; tin-lead alternative available for legacy high-reliability soldering processes. |
Applications
| Aerospace Avionics Protection | Automotive Power Rail Protection |
|---|---|
Use Scenario: Protecting ARINC 429 data lines and sensor inputs in commercial aircraft against DO-160G Waveform 4 (6.4/69 μs) lightning-induced transients. IC Role / Device Role / Timing Role: Primary clamping element placed directly at connector entry point to limit voltage to ≤25.8 V during 1500 A surges. Use Value: Enables compliance with Level 4/5 pin injection testing without derating or parallel devices. |
Use Scenario: Safeguarding engine control unit (ECU) power inputs against ISO 7637-2 Load Dump pulses (up to 60 V, 400 ms). IC Role / Device Role / Timing Role: Unidirectional TVS shunting surge energy to chassis ground while blocking normal 12–14 V operation. Use Value: Withstands 36 kW peak power without failure, eliminating need for series fusing or redundant clamps. |
| Industrial Motor Drive I/O Protection | Renewable Energy DC Link Protection |
Use Scenario: Shielding PLC analog input modules from inductive kickback when controlling solenoids or contactors. IC Role / Device Role / Timing Role: Fast-response (<100 ps) clamping of sub-microsecond switching transients on 0–10 V or 4–20 mA signal paths. Use Value: Prevents ADC saturation and latch-up in precision measurement circuits during factory floor EMI events. |
Use Scenario: Protecting solar inverter DC bus terminals from lightning-induced surges in rooftop PV installations. IC Role / Device Role / Timing Role: High-energy (36 kW) suppression across 600–1000 V DC links, coordinated with upstream MOVs. Use Value: Achieves IEC 61000-4-5 Class 4 compliance with 12 Ω source impedance using single-device solution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | Lower 600 W PPP, SMB package, RθJC = 15 °C/W, no AEC-Q101 or DO-160 qualification. | Suitable only for consumer-grade 12 V circuits; cannot meet aircraft lightning or automotive load dump requirements. | Select SMBJ15A only for cost-sensitive, non-safety-critical applications where surge energy is <100 J. |
| SMCJ15A | 1500 W PPP, SMC package, RθJC = 3.5 °C/W, AEC-Q101 qualified but not DO-160 tested. | Valid for automotive ECU protection per ISO 16750-2, but insufficient for DO-160G Level 5 or multi-stroke lightning. | Choose SMCJ15A when DO-160 compliance is unnecessary and board space allows larger SMC footprint. |
Compared with SMBJ15A and SMCJ15A, the MPLAD36KP15A/TR delivers 24× and 24× higher peak power handling respectively, with certified aerospace-grade thermal performance and traceability - making it the only option for mission-critical avionics and high-reliability industrial DC systems.
Availability
MPLAD36KP15A/TR is available at Aetrix Electronics and suitable for aerospace avionics, automotive power electronics, industrial motor drives, and renewable energy inverters requiring stable component supply across extended product lifecycles.
Supply support for MPLAD36KP15A/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 MPLAD36KP15A/TR belongs to Microsemi's high-power PLAD-series TVS family, engineered specifically for multi-stroke lightning protection and automotive load dump immunity in harsh-environment electronics.
FAQ
What is the clamping voltage of the MPLAD36KP15A/TR at its rated peak pulse current?
The MPLAD36KP15A/TR has a maximum clamping voltage (VC) of 25.8 V when subjected to its rated 1500 A peak impulse current (IPP) under the 10/1000 μs waveform. This value is measured per JEDEC standards and guarantees that protected downstream circuitry will not experience voltages exceeding 25.8 V during worst-case surge events - a critical parameter for safeguarding 3.3 V or 5 V logic interfaces connected to 12–24 V rails.
Is the MPLAD36KP15A/TR suitable for bidirectional signal lines like RS-485 or CAN bus?
No - the MPLAD36KP15A/TR is unidirectional (denoted by "A" suffix) and designed for DC power rail or single-polarity signal protection. For bidirectional lines such as RS-485 or CAN, the "CA" variant (e.g., MPLAD36KP15CA/TR) must be used. Using the unidirectional MPLAD36KP15A/TR on bidirectional signals risks forward conduction during normal signal swings, leading to data corruption or device damage.
Does the MPLAD36KP15A/TR require a heatsink for reliable operation?
Yes - while the MPLAD36KP15A/TR features a low 1.0 °C/W junction-to-case thermal resistance, its 36,000 W surge rating demands efficient heat extraction. Reliable operation under repeated transients requires soldering the metal cathode base to a minimum 1 oz copper thermal pad (per Figure 7 in the datasheet), ideally connected to an internal or external heatsink. Without adequate thermal management, junction temperature can exceed 150 °C, triggering permanent degradation.
What certifications does the MPLAD36KP15A/TR hold for automotive use?
The MPLAD36KP15A/TR is AEC-Q101 qualified, validating its robustness for automotive under-hood applications including engine control units, body control modules, and ADAS power supplies. It meets stress tests for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life. However, it is not ISO 7637-2 certified out-of-box - system-level validation is required to confirm compliance with specific load dump waveforms.
How does the MPLAD36KP15A/TR compare to standard SMA/SMB/SMC TVS diodes in surge handling?
The MPLAD36KP15A/TR delivers 36,000 W peak pulse power - up to 60× higher than typical SMA (600 W), SMB (600 W), or SMC (1500 W) TVS diodes. This is achieved via its thermally optimized PLAD package with direct metal-base heat sinking, enabling sustained energy absorption without thermal runaway. Standard packages rely on PCB copper for heat spreading and cannot safely dissipate multi-kilojoule transients common in aerospace or industrial settings.
MPLAD36KP15A/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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 25.8V
- Current - Peak Pulse (10/1000µs):
- 1396A (1.396kA)
- 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
MPLAD36KP15A/TR FAQ
1.How can I place an order for MPLAD36KP15A/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP15A/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 MPLAD36KP15A/TR reliable?
The price and inventory of MPLAD36KP15A/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP15A/TR is usually 5 days.
3.What payment methods are accepted for MPLAD36KP15A/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP15A/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP15A/TR?
MPLAD36KP15A/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP15A/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 MPLAD36KP15A/TR?
For technical support, including MPLAD36KP15A/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP15A/TR requirements.
6.How does Aetrix verify that MPLAD36KP15A/TR is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP15A/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 MPLAD36KP15A/TR meets industry standards.
7.What is the process for return or replacement of MPLAD36KP15A/TR?
All MPLAD36KP15A/TR units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP15A/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 MPLAD36KP15A/TR part is unused and in its original packaging.
Return procedure for MPLAD36KP15A/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP15A/TR Tags
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