My Inquiry
My Account
Microchip Technology MPLAD36KP7AE3/TR
- Part No.:
- MPLAD36KP7AE3/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP7AE3/TR.pdf
- Description:
- SURFACE MOUNT 36,000 WATT, TVS,
- Quantity:
- Payment:
- Shipping:
Inventory:2,381
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MPLAD36KP7AE3/TR from Microchip (formerly Microsemi) is a unidirectional surface-mount transient voltage suppressor (TVS) rated for 36,000 W peak pulse power at 10/1000 μs, with 7 V working standoff voltage (VWM), 7.8–8.6 V breakdown voltage (VBR) at 150 mA, and 12.4 V clamping voltage (VC) at 3000 A peak impulse current - designed for lightning and load dump protection in aerospace avionics meeting RTCA DO-160 Section 22.
For engineers reviewing the MPLAD36KP7AE3/TR datasheet, MPLAD36KP7AE3/TR pinout, MPLAD36KP7AE3/TR application, or MPLAD36KP7AE3/TR equivalent, key selection criteria include its 1.0 °C/W junction-to-case thermal resistance, RoHS-compliant matte-tin plating, Level 1 moisture sensitivity rating, AEC-Q101 qualification, and bidirectional variants (e.g., MPLAD36KP7CAE3/TR) for differential signal line protection.
Technical Context
This TVS diode employs a planar silicon avalanche structure optimized for low clamping ratio (VC/VBR ≈ 1.55) and sub-100 ps response time in unidirectional configuration. Its PLAD package integrates a metal base cathode for direct thermal coupling to PCB copper, enabling efficient heat dissipation under multi-stroke transients.
It meets IEC 61000-4-5 (42 Ω, 12 Ω, and 2 Ω source impedances) up to Class 5 for secondary lightning protection and RTCA/DO-160G Waveform 4 (6.4/69 μs) and Waveform 5A (40/120 μs) pin injection testing - validated across the full 14 V–400 V VWM family including MPLAD36KP7AE3/TR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 36,000 W - sustains high-energy lightning surges without thermal runaway when mounted on 1 oz Cu FR4 with recommended pad layout |
| Working Standoff Voltage (VWM) | 7 V - maximum continuous DC or repetitive peak reverse voltage before conduction begins; selected to exceed nominal 5 V rail with margin |
| Breakdown Voltage (VBR) | 7.8–8.6 V at 150 mA - defines onset of avalanche conduction; tight 5% tolerance ensures predictable turn-on across temperature |
| Clamping Voltage (VC) | 12.4 V at 3000 A - limits downstream voltage during surge; enables safe operation of 12 V logic and interface ICs |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables direct heatsinking via metal base; critical for multi-pulse reliability in automotive load dump events |
| Moisture Sensitivity Level | Level 1 per J-STD-020D.1 - no dry pack or bake required prior to reflow, reducing manufacturing overhead |
| AEC-Q101 Qualification | Qualified - validated for automotive under-hood applications including engine control units and body electronics |
Pinout & Package
The MPLAD36KP7AE3/TR uses the PLAD (Power Leadless Array Device) surface-mount package: a rectangular, void-free thermosetting epoxy body (UL94V-0) with exposed metal cathode base and molded anode terminal on top. Dimensions are 10.3 × 8.4 × 3.2 mm (L × W × H); weight ≈ 1.8 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top metallized pad) | Positive surge current entry point | Connected to protected line (e.g., 5 V rail); must be routed with low-inductance trace to minimize overshoot |
| Cathode (exposed metal base) | Surge current return path and thermal interface | Soldered directly to large copper pour or heatsink; primary thermal conduction path to PCB |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW surge rating at 10/1000 μs | Enables single-device compliance with RTCA DO-160 Section 22 multi-stroke lightning test without parallel stacking |
| 1.0 °C/W RθJC | Supports >1000 surge cycles at 50% duty derating when thermally anchored to ≥25 cm² 1 oz Cu area |
| AEC-Q101 qualification | Validates robustness for automotive 12 V systems subject to ISO 7637-2 load dump pulses (−150 V to +170 V) |
| RoHS-compliant matte-tin plating | Ensures reliable solder wetting and intermetallic formation during lead-free reflow (260 °C, 10 s) |
| Level 1 moisture sensitivity | Eliminates pre-bake step and floor-life tracking, reducing SMT line downtime and handling risk |
Applications
| Aerospace Avionics Power Input | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Protection of 28 V DC power inputs in flight management computers against DO-160G Section 22 lightning-induced transients. IC Role / Device Role / Timing Role: Primary clamping device placed upstream of DC-DC converters and LDOs to limit input voltage to ≤12.4 V during 3000 A surges. Use Value: Enables compliance with Level 4/5 pin injection testing using a single discrete component, avoiding complex RC snubbers or multi-stage protection. |
Use Scenario: Guarding microcontroller supply rails in gasoline/diesel ECUs against ISO 7637-2 Test 5a/b load dump events. IC Role / Device Role / Timing Role: Fast-response shunt protector that clamps 120 V/200 ms transients within 100 ps, preventing latch-up or gate oxide damage in 5 V logic. Use Value: Achieves <12.4 V clamping at 3000 A while maintaining <10 µA leakage at 7 V - preserving battery drain budget in always-on modules. |
| Industrial Motor Drive DC Bus | Railway Signaling Interface |
Use Scenario: Safeguarding 48 V DC bus monitoring circuits in variable-frequency drives from switching-induced transients and ground bounce. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) unidirectional clamp placed across isolated analog sensor inputs to suppress common-mode spikes. Use Value: Delivers 36 kW surge handling without compromising signal integrity - critical for ±0.1% current sensing accuracy in closed-loop control. |
Use Scenario: Protecting RS-485 transceivers in track-side signaling nodes from induced surges due to nearby lightning strikes on overhead catenary systems. IC Role / Device Role / Timing Role: Bidirectional-capable variant (MPLAD36KP7CAE3/TR) used in differential pair protection with matched VC on both lines. Use Value: Maintains <1 ns skew between A/B line clamping, preserving signal timing margins for EN 50121-4 compliant 10 Mbps data links. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.0A-E3/5AT | Lower 400 W rating, SMA package, 12.5 V VC at 32.4 A - not suitable for multi-stroke or high-current events | Limited to consumer-grade I/O protection; fails DO-160G Section 22 and ISO 7637-2 validation | Select only for cost-sensitive, low-energy applications where 36 kW capability is unnecessary |
| SMCJ7.0AHE3/73 | 1500 W rating, SMC package, 12.0 V VC at 123 A - higher thermal resistance (RθJA = 19 °C/W) | Acceptable for single-event automotive transients but cannot sustain repeated load dump cycles | Choose when board space allows larger SMC footprint and system-level testing confirms single-pulse dominance |
Compared with SMAJ7.0A-E3/5AT and SMCJ7.0AHE3/73, the MPLAD36KP7AE3/TR delivers 90× higher peak power handling, 19× lower junction-to-ambient thermal resistance when properly mounted, and certified compliance with aerospace and automotive multi-pulse standards - making it the only option for mission-critical 7 V rail protection requiring long-term reliability.
Availability
MPLAD36KP7AE3/TR is available at Aetrix Electronics and suitable for aerospace avionics, automotive ECU power conditioning, and industrial motor drive DC bus protection requiring stable component supply across extended production lifecycles.
Supply support for MPLAD36KP7AE3/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
Microchip Technology Inc. (NASDAQ: MCHP) is a global semiconductor company formed through the acquisition of Microsemi, specializing in high-reliability analog, mixed-signal, and timing solutions for aerospace, defense, and industrial markets.
The MPLAD36KP7AE3/TR belongs to Microchip's high-power PLAD TVS family, engineered specifically for multi-stroke lightning and load dump protection in safety-critical systems where thermal robustness and standard compliance are non-negotiable.
FAQ
What is the maximum peak pulse current rating for MPLAD36KP7AE3/TR at 10/1000 μs?
The MPLAD36KP7AE3/TR is rated for 3000 A peak impulse current (IPP) at the 10/1000 μs waveform, corresponding to its 36,000 W peak pulse power rating. This value is confirmed in Table 4 of the datasheet and validated per IEC 61000-4-5 test conditions with 42 Ω source impedance. The device maintains clamping voltage ≤12.4 V at this current level.
Is MPLAD36KP7AE3/TR RoHS-compliant and what does the "e3" suffix indicate?
Yes, MPLAD36KP7AE3/TR is RoHS-compliant. The "e3" suffix explicitly denotes RoHS-compliant matte-tin plating per J-STD-020D.1, verified in Section 1.3 (Part Nomenclature) and Table 5 (Mechanical and Packaging). This plating ensures compatibility with lead-free reflow profiles up to 260 °C for 10 seconds without degradation.
Does MPLAD36KP7AE3/TR meet AEC-Q101 requirements for automotive use?
Yes, MPLAD36KP7AE3/TR is AEC-Q101 qualified, as stated in Section 1.1 (Features) of the datasheet. This qualification covers stress tests including high-temperature operating life, temperature cycling, and humidity bias, validating suitability for under-hood automotive applications such as engine control units and transmission control modules.
What is the thermal resistance from junction to case (RθJC) for MPLAD36KP7AE3/TR and why does it matter?
The junction-to-case thermal resistance (RθJC) of MPLAD36KP7AE3/TR is 1.0 °C/W, specified in Table 3 (Absolute Maximum Ratings). This low value enables efficient heat transfer from the silicon die to the PCB copper via the exposed metal cathode base - essential for surviving repeated load dump events and multi-stroke lightning surges without thermal runaway.
Can MPLAD36KP7AE3/TR be used for bidirectional signal line protection?
No - MPLAD36KP7AE3/TR is unidirectional (denoted by "A" suffix). For bidirectional protection, the equivalent part is MPLAD36KP7CAE3/TR ("CA" suffix). The datasheet explicitly states polarity differentiation in Section 1.3: "A = Unidirectional", "CA = Bidirectional". Using MPLAD36KP7AE3/TR on AC or differential lines risks forward conduction and failure.
MPLAD36KP7AE3/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):
- -
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- 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
MPLAD36KP7AE3/TR FAQ
1.How can I place an order for MPLAD36KP7AE3/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP7AE3/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 MPLAD36KP7AE3/TR reliable?
The price and inventory of MPLAD36KP7AE3/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP7AE3/TR is usually 5 days.
3.What payment methods are accepted for MPLAD36KP7AE3/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP7AE3/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP7AE3/TR?
MPLAD36KP7AE3/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP7AE3/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 MPLAD36KP7AE3/TR?
For technical support, including MPLAD36KP7AE3/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP7AE3/TR requirements.
6.How does Aetrix verify that MPLAD36KP7AE3/TR is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP7AE3/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 MPLAD36KP7AE3/TR meets industry standards.
7.What is the process for return or replacement of MPLAD36KP7AE3/TR?
All MPLAD36KP7AE3/TR units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP7AE3/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 MPLAD36KP7AE3/TR part is unused and in its original packaging.
Return procedure for MPLAD36KP7AE3/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP7AE3/TR 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…
