My Inquiry
My Account
Microchip Technology MPLAD36KP30AE3
- Part No.:
- MPLAD36KP30AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP30AE3.pdf
- Description:
- TVS DIODE 30VWM 48.8VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:8,034
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MPLAD36KP30AE3 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, clamps at ≤48.8 V under 738 A peak impulse current, and features a 30 V reverse standoff voltage (VWM), 33.3–36.8 V breakdown voltage (V(BR)), and 1.0 °C/W junction-to-case thermal resistance - enabling robust secondary lightning protection per IEC 61000-4-5 and RTCA DO-160F Waveform 4 Level 4.
For engineers reviewing the MPLAD36KP30AE3 datasheet, MPLAD36KP30AE3 pinout, MPLAD36KP30AE3 application, or MPLAD36KP30AE3 equivalent, this device is selected for high-reliability DC bus protection where low clamping voltage, minimal thermal resistance, and RoHS-compliant surface-mount packaging are critical to meeting multi-stroke lightning immunity and AEC-Q101 qualification requirements.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode on the metal base (package bottom), optimized for fast response (<100 ps rise time) and low dynamic impedance during high-current transients. Its thermally enhanced PLAD package enables direct heat sinking via the metal baseplate, supporting sustained energy dissipation under repetitive surges at ≤0.05% duty factor.
It meets AEC-Q101 stress testing requirements and supports MIL-PRF-19500 upscreening options. Electrical performance is specified at 25°C with derating above 25°C ambient, and it complies with IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (lightning) standards using defined source impedances (2 Ω, 12 Ω, 42 Ω).
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) | 30 V - maximum continuous DC operating voltage before conduction begins |
| Breakdown Voltage (V(BR)) | 33.3–36.8 V @ 5 mA - ensures reliable turn-on margin above system nominal voltage |
| Max Clamping Voltage (VC) | 48.8 V @ 738 A - limits downstream component stress during worst-case surge |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to heatsink or PCB copper plane |
| Standby Current (ID) | 10 μA @ 30 V - negligible leakage in standby, preserving battery or low-power rail integrity |
| RoHS Compliance | e3 marking - lead-free matte-tin plating compliant with EU RoHS Directive 2011/65/EU |
Pinout & Package
The MPLAD36KP30AE3 uses the PLAD surface-mount package: void-free UL94V-0 epoxy body with metal baseplate (cathode), tin-lead or RoHS-compliant matte-tin terminals, and polarity marked on unidirectional variants. Dimensions: 12.32 × 10.54 × 5.08 mm (L × W × H), weight ~1.7–2.0 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top surface pad) | Transient current entry point | Connected to protected line; conducts surge current toward cathode baseplate |
| Cathode (metal baseplate) | Transient current return path & thermal interface | Must be soldered to large copper area or heatsink for thermal management and low-inductance grounding |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW peak pulse rating | Enables single-device compliance with RTCA DO-160 Section 22 multi-stroke lightning for avionics power inputs |
| 1.0 °C/W RθJC | Reduces junction temperature rise by >50% vs. standard SMC packages, extending surge endurance |
| AEC-Q101 qualified | Validated for automotive under-hood applications including load dump and alternator transients |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and bake-out prior to reflow, reducing manufacturing cost and risk |
| UL94V-0 epoxy body | Provides flame-retardant housing suitable for safety-critical aerospace and rail systems |
Applications
| Aerospace Power Input Protection | Automotive DC Bus Protection |
|---|---|
Use Scenario: Protecting 28 V DC power inputs of flight control computers and sensors against lightning-induced surges per RTCA DO-160F Waveform 4 Level 4. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed at board-level input filter stage to shunt transient energy before EMI filters and regulators. Use Value: Clamps to ≤48.8 V within 100 ps, preventing damage to downstream 36 V-rated DC/DC converters and ensuring DO-160 compliance without external heatsinking. | Use Scenario: Safeguarding 24 V battery-fed ECUs against ISO 7637-2 Load Dump pulses (up to 60 V, 400 ms) and ISO 16750-2 jump-start transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power rail, mounted directly to chassis ground via metal baseplate for lowest possible clamping impedance. Use Value: Withstands 738 A peak current and dissipates 36 kW surge energy while maintaining <1.0 °C/W thermal path to reduce junction temperature rise below 100°C. |
| Industrial Motor Drive DC Link | Railway Signaling Interface |
Use Scenario: Protecting IGBT gate drivers and current sensors on 30–40 V DC link rails in variable-frequency drives subjected to switching-induced voltage spikes. IC Role / Device Role / Timing Role: Fast-response TVS placed across DC link capacitor to clamp commutation spikes before they propagate to sensitive analog front-ends. Use Value: 33.3–36.8 V V(BR) provides precise turn-on margin above 30 V nominal rail, minimizing false triggering while ensuring sub-50 V clamping under 738 A surges. | Use Scenario: Securing 30 V signaling lines in train control systems against induced surges from nearby traction currents and lightning coupling per EN 50121-4. IC Role / Device Role / Timing Role: Secondary protection device installed after primary gas discharge tube (GDT), limiting let-through voltage to safe levels for optocouplers and RS-485 transceivers. Use Value: 48.8 V VC ensures downstream 5 V or 3.3 V logic interfaces remain within absolute maximum ratings even during 42 Ω source impedance IEC 61000-4-5 Class 5 events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A | 600 W PPP rating, SMC package, RθJC = 12.5 °C/W, VWM = 30 V, VC = 48.4 V @ 10.3 A | Rated only for low-energy transients (IEC 61000-4-5 Class 2); insufficient for DO-160 or load dump | Select when cost-sensitive, low-surge environments require compact footprint and basic ESD/EFT protection |
| SMCJ30A | 1500 W PPP rating, SMC package, RθJC = 12.5 °C/W, VWM = 30 V, VC = 48.4 V @ 31 A | Lacks AEC-Q101 qualification and fails RTCA DO-160F Waveform 4 Level 4; limited to non-aerospace industrial use | Choose for mid-tier surge protection where 1.5 kW suffices and PLAD-level thermal performance is unnecessary |
Compared with SMBJ30A and SMCJ30A, the MPLAD36KP30AE3 delivers 24× and 24× higher peak pulse power respectively, achieves 12.5× lower thermal resistance, and is uniquely qualified for aerospace lightning standards - making it irreplaceable in mission-critical high-energy surge environments.
Availability
MPLAD36KP30AE3 is available at Aetrix Electronics and suitable for aerospace power conditioning, automotive ECU protection, and industrial motor drive DC link safeguarding requiring stable component supply across extended product lifecycles.
Supply support for MPLAD36KP30AE3 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 Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability, radiation-tolerant, and high-power analog/mixed-signal solutions for aerospace, defense, and industrial markets.
The MPLAD series was developed to address the need for surface-mount TVS devices capable of surviving multi-stroke lightning events in avionics and meeting AEC-Q101 for under-hood automotive applications - combining ultra-high PPP with thermally optimized packaging.
FAQ
What is the clamping voltage of MPLAD36KP30AE3 under full-rated surge current?
The MPLAD36KP30AE3 has a maximum clamping voltage (VC) of 48.8 V at its rated peak pulse current of 738 A under 10/1000 μs waveform conditions. This value is guaranteed across temperature and lot variations per Microsemi's test protocol, and defines the upper voltage limit imposed on protected circuitry during worst-case transients. The MPLAD36KP30AE3 maintains this clamping performance due to its low dynamic impedance and thermally optimized PLAD package.
Is MPLAD36KP30AE3 qualified for automotive applications?
Yes, the MPLAD36KP30AE3 is tested and qualified to AEC-Q101 for discrete semiconductors, covering stress tests including HTGB, HTRB, TST, and surge. It is specifically designed for automotive 24 V systems facing load dump and jump-start transients. Its 30 V VWM and 48.8 V VC align with ISO 16750-2 requirements, and its metal-base thermal design supports under-hood reliability - confirming MPLAD36KP30AE3 as a validated solution for engine control units and body electronics.
How does the PLAD package of MPLAD36KP30AE3 improve thermal performance?
The PLAD package of MPLAD36KP30AE3 integrates a copper alloy metal baseplate that serves as both the cathode terminal and primary thermal interface. With a measured junction-to-case thermal resistance of 1.0 °C/W - over 12× better than standard SMC packages - it enables rapid heat transfer to PCB copper planes or external heatsinks. This allows MPLAD36KP30AE3 to sustain repeated 36 kW surges without thermal runaway, a capability essential for DO-160F multi-stroke compliance and long-term reliability in high-temperature environments.
Does MPLAD36KP30AE3 meet RTCA DO-160 lightning protection requirements?
Yes, the MPLAD36KP30AE3 is explicitly rated for RTCA DO-160F Section 22 lightning-induced transient protection, including Waveform 4 (6.4/69 μs) Level 4 and Waveform 5A (40/120 μs) Level 4 up to 300 V VWM. Its 36 kW PPP, fast <100 ps response, and low clamping voltage ensure compliance without additional staging. The MPLAD36KP30AE3 data sheet confirms its qualification across all relevant waveforms and voltage classes - making it a documented solution for avionics power input protection.
What is the meaning of the "E3" suffix in MPLAD36KP30AE3?
"E3" in MPLAD36KP30AE3 denotes RoHS-compliant matte-tin plating on the terminals, per EU Directive 2011/65/EU. It replaces traditional tin-lead finishes while maintaining solderability per MIL-STD-750 Method 2026. The "E3" marking appears on the device body and indicates full compliance with lead-free assembly processes, including compatibility with standard Pb-free reflow profiles (peak 260°C). All electrical and thermal specifications of MPLAD36KP30AE3 are identical to its non-RoHS counterpart except for plating composition.
MPLAD36KP30AE3 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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.8V
- Current - Peak Pulse (10/1000µs):
- 738A
- 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
MPLAD36KP30AE3 FAQ
1.How can I place an order for MPLAD36KP30AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP30AE3 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 MPLAD36KP30AE3 reliable?
The price and inventory of MPLAD36KP30AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP30AE3 is usually 5 days.
3.What payment methods are accepted for MPLAD36KP30AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP30AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP30AE3?
MPLAD36KP30AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP30AE3 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 MPLAD36KP30AE3?
For technical support, including MPLAD36KP30AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP30AE3 requirements.
6.How does Aetrix verify that MPLAD36KP30AE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP30AE3 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 MPLAD36KP30AE3 meets industry standards.
7.What is the process for return or replacement of MPLAD36KP30AE3?
All MPLAD36KP30AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP30AE3, 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 MPLAD36KP30AE3 part is unused and in its original packaging.
Return procedure for MPLAD36KP30AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP30AE3 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
