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Microchip Technology MPLAD36KP110AE3
- Part No.:
- MPLAD36KP110AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP110AE3.pdf
- Description:
- TVS DIODE 110VWM 177VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:6,600
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Product details
Overview
MPLAD36KP110AE3 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 ≤177 V under 500 A impulse, and features a 110 V reverse standoff voltage (VWM), 122–135 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 MPLAD36KP110AE3 datasheet, MPLAD36KP110AE3 pinout, MPLAD36KP110AE3 application, or MPLAD36KP110AE3 equivalent, key selection criteria include its 36 kW surge rating, RoHS-compliant e3 plating, 110 V standoff compatibility with 100 V nominal bus systems, low-profile PLAD package with metal-base cathode, and AEC-Q101 qualification for automotive load dump resilience.
Technical Context
This TVS diode operates as a clamping-type overvoltage protector, triggered by avalanche breakdown above V(BR) to divert transients away from sensitive downstream circuitry. Its unidirectional polarity and metal-base cathode configuration enable direct thermal coupling to PCB copper or heatsinks, supporting sustained multi-stroke surge handling under ≤0.05% duty cycle.
It meets IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (lightning) standards with 42 Ω, 12 Ω, and 2 Ω source impedances - validated across Class 1–5 severity levels depending on VWM selection. The device's 100 ps response time and <5 ns clamping latency ensure sub-microsecond protection against fast-rising transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - sustains aircraft lightning strike energy without failure |
| Reverse Standoff Voltage (VWM) | 110 V - matches 100 V DC bus systems with 10% margin for ripple and tolerance |
| Breakdown Voltage (V(BR)) | 122–135 V @ 5 mA - defines precise avalanche initiation threshold for repeatable clamping |
| Max Clamping Voltage (VC) | 177 V @ 500 A - limits protected circuit voltage stress during worst-case surge |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to heatsink or large copper pour for thermal reliability |
| Standby Current (ID) | 10 μA @ 110 V - ensures negligible leakage power loss in always-on systems |
| Moisture Sensitivity Level | Level 1 (IPC/JEDEC J-STD-020B) - no dry pack or bake required before reflow |
Pinout & Package
Package: PLAD (Plastic Leaded Anode Down) - surface-mount, low-profile thermoset epoxy case with metal base acting as cathode terminal; UL94V-0 rated; 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-side metallization) | Transient current entry point | Connected to protected line; conducts surge current into device during overvoltage event |
| Cathode (metal base underside) | Transient current return path & thermal interface | Soldered directly to PCB ground plane or heatsink; serves dual role of electrical return and primary heat dissipation path |
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 |
| RoHS-compliant e3 matte-tin plating | Ensures reliable solderability per MIL-STD-750 Method 2026 and eliminates lead-based process constraints |
| AEC-Q101 qualified | Validates robustness for automotive 12 V/24 V load dump events up to 125 °C junction temperature |
| 1.0 °C/W RθJC | Allows >70 W steady-state power dissipation when mounted on 100 cm² 2 oz copper with thermal vias |
| Level 1 moisture sensitivity | Eliminates pre-reflow baking, reducing manufacturing cost and avoiding moisture-induced popcorning |
Applications
| Aerospace Power Input Protection | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Primary DC input stage of flight control computers exposed to lightning-induced surges per RTCA DO-160F Waveform 4 (6.4/69 μs). IC Role / Device Role / Timing Role: High-energy clamping TVS placed upstream of DC-DC converters and EMI filters. Use Value: Limits transient voltage to ≤177 V during Level 4 pin injection, preserving converter MOSFET gate oxide integrity and preventing latch-up. |
Use Scenario: 12 V battery rail protection in engine control modules subject to ISO 7637-2 Load Dump pulses (up to 120 V, 400 ms). IC Role / Device Role / Timing Role: Unidirectional surge shunt parallel to input capacitor bank. Use Value: Absorbs 36 kW peak energy without degradation, maintaining system uptime across 100,000+ thermal cycles per AEC-Q101. |
| Industrial Motor Drive DC Bus | Railway Signaling Power Supply |
Use Scenario: DC link protection in variable-frequency drives where IGBT switching induces repetitive 1–10 kV transients. IC Role / Device Role / Timing Role: Secondary surge suppression stage after MOV-based front-end filtering. Use Value: Provides precise 110 V clamping threshold with <5 ns latency, preventing false triggering of overvoltage shutdown circuits. |
Use Scenario: 110 V DC auxiliary power supply in European railway signaling cabinets subjected to IEC 61000-4-5 Class 4 surges (4 kV, 2 Ω source). IC Role / Device Role / Timing Role: Final-stage TVS on power entry board before DC-DC isolation. Use Value: Delivers 177 V clamping at 500 A with 100% test coverage per lot, ensuring SIL-2 functional safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A | Lower PPP (600 W), SMB package, RθJA = 50 °C/W, no AEC-Q101 or DO-160 qualification | Suitable only for consumer-grade low-energy ESD/EFT; cannot meet aircraft lightning or automotive load dump requirements | Select only for cost-sensitive non-safety-critical designs with <100 W surge exposure |
| SMCJ110A | Higher PPP (1500 W), SMC package, RθJA = 25 °C/W, AEC-Q101 qualified but not DO-160 tested | Meets ISO 7637-2 but lacks RTCA DO-160F Waveform 4/5 validation and 36 kW capability | Use where automotive qualification is mandatory but aerospace certification is not required |
Compared with SMBJ110A and SMCJ110A, the MPLAD36KP110AE3 uniquely supports 36× higher peak power, certified multi-stroke lightning immunity, and metal-base thermal management - making it irreplaceable for mission-critical aerospace and heavy-duty industrial power protection where single-point failure is unacceptable.
Availability
MPLAD36KP110AE3 is available at Aetrix Electronics and suitable for aerospace avionics, automotive powertrain ECUs, industrial motor drives, and railway signaling systems requiring stable component supply across extended product lifecycles and rigorous environmental certifications.
Supply support for MPLAD36KP110AE3 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 radiation-hardened components for aerospace, defense, and industrial markets.
The MPLAD36KP110AE3 belongs to Microsemi's PLAD-series high-power TVS family, engineered specifically for multi-stroke lightning protection and automotive load dump resilience in harsh-environment power systems.
FAQ
What is the maximum clamping voltage of the MPLAD36KP110AE3 at 500 A?
The MPLAD36KP110AE3 has a maximum clamping voltage (VC) of 177 V at 500 A peak pulse current under 10/1000 μs waveform conditions. This value is guaranteed per datasheet Figure 3 and ensures protected circuitry remains below critical overvoltage thresholds during severe transients. The MPLAD36KP110AE3 achieves this clamping performance while sustaining full 36 kW power dissipation without parametric shift.
Is the MPLAD36KP110AE3 qualified for automotive applications?
Yes, the MPLAD36KP110AE3 is AEC-Q101 qualified for automotive use, validating its reliability under temperature cycling, humidity, mechanical shock, and load dump stress. It is specifically rated for 12 V and 24 V vehicle battery systems and meets ISO 7637-2 requirements. The MPLAD36KP110AE3 also supports extended junction temperature operation up to +150 °C, matching under-hood ECU thermal environments.
How does the PLAD package of the MPLAD36KP110AE3 improve thermal performance?
The PLAD package uses a metal base as the cathode terminal, providing direct thermal conduction from the silicon die to the PCB ground plane or external heatsink. With a junction-to-case thermal resistance of just 1.0 °C/W, the MPLAD36KP110AE3 dissipates heat far more effectively than standard SMC or SMB packages. This design allows the MPLAD36KP110AE3 to sustain repeated 36 kW surges without thermal runaway or parameter drift.
Does the MPLAD36KP110AE3 meet RTCA DO-160 lightning protection standards?
Yes, the MPLAD36KP110AE3 is explicitly validated for RTCA DO-160 Section 22 multi-stroke lightning testing, 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 rating and low clamping latency make it suitable for primary and secondary lightning protection in avionics power supplies. The MPLAD36KP110AE3 documentation confirms compliance across all specified waveforms and severity levels.
What is the polarity configuration and marking convention for the MPLAD36KP110AE3?
The MPLAD36KP110AE3 is unidirectional, with the cathode located on the metal base (underside) and the anode on the top-side metallization. Polarity is indicated by a cathode band on the top surface per standard diode marking practice. The "A" suffix in MPLAD36KP110AE3 denotes unidirectional construction, distinguishing it from bidirectional variants ending in "CA". This polarity configuration ensures correct orientation during PCB layout and assembly of the MPLAD36KP110AE3.
MPLAD36KP110AE3 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):
- 110V
- Voltage - Breakdown (Min):
- 122V
- Voltage - Clamping (Max) @ Ipp:
- 177V
- Current - Peak Pulse (10/1000µs):
- 204A
- 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
MPLAD36KP110AE3 FAQ
1.How can I place an order for MPLAD36KP110AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP110AE3 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 MPLAD36KP110AE3 reliable?
The price and inventory of MPLAD36KP110AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP110AE3 is usually 5 days.
3.What payment methods are accepted for MPLAD36KP110AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP110AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP110AE3?
MPLAD36KP110AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP110AE3 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 MPLAD36KP110AE3?
For technical support, including MPLAD36KP110AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP110AE3 requirements.
6.How does Aetrix verify that MPLAD36KP110AE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP110AE3 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 MPLAD36KP110AE3 meets industry standards.
7.What is the process for return or replacement of MPLAD36KP110AE3?
All MPLAD36KP110AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP110AE3, 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 MPLAD36KP110AE3 part is unused and in its original packaging.
Return procedure for MPLAD36KP110AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP110AE3 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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