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Microchip Technology MPLAD36KP100A
- Part No.:
- MPLAD36KP100A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP100A.pdf
- Description:
- TVS DIODE 100VWM 162VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:8,422
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Product details
Overview
MPLAD36KP100A from Microsemi is a unidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace and automotive power systems. It delivers 36 kW peak pulse power at 10/1000 μs, clamps transients to ≤162 V at 223 A, and operates with 100 V reverse standoff voltage (VWM), meeting RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MPLAD36KP100A datasheet, MPLAD36KP100A pinout, MPLAD36KP100A application, or MPLAD36KP100A equivalent, key selection criteria include its 1.0 °C/W junction-to-case thermal resistance, 100–111 V breakdown voltage range, RoHS-compliant e3 plating, and suitability for secondary lightning protection per IEC 61000-4-5 with 42 Ω source impedance up to Class 5 (short distance).
Technical Context
This TVS diode uses an avalanche breakdown mechanism to clamp fast-rising transients, with sub-100 ps response time enabling effective suppression of ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and lightning-induced surges. Its metal-base cathode construction provides low thermal resistance for sustained multi-pulse operation under 0.05% duty cycle.
The device is rated for -55°C to +150°C junction temperature, features 3σ lot-norm screening on standby current (ID ≤10 μA at VWM), and supports pin-injection protection per RTCA/DO-160F Waveform 4 (Level 4 up to 400 V) and Waveform 5A (Level 4 up to 78 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - enables single-device protection against aircraft lightning strikes and automotive load dump events |
| Reverse Standoff Voltage (VWM) | 100 V - maximum continuous operating voltage before clamping activation; matches 24/28 V and 48 V system rails with margin |
| Breakdown Voltage (V(BR)) | 100–111 V @ 5 mA - ensures reliable turn-on above normal operating peaks without false triggering |
| Clamping Voltage (VC) | 162 V @ 223 A - limits downstream voltage stress during worst-case surge, preserving connected ICs and sensors |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - allows efficient heat transfer to PCB copper pour or heatsink, supporting repeated surge events |
| Standby Current (ID) | ≤10 μA @ 100 V - negligible leakage in always-on systems, avoiding battery drain or signal path interference |
| Temperature Range | -55°C to +150°C - qualified for engine bay, avionics bay, and other extreme-environment deployments |
Pinout & Package
Package: PLAD (Plastic Low-profile Anode-down) surface-mount package with metal base cathode terminal; dimensions 12.32 × 10.54 × 5.08 mm (L × W × H); void-free UL94V-0 epoxy body; tin-lead or RoHS-compliant matte-tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top surface pad) | Transient current entry point for unidirectional operation | Connected to protected line (e.g., power rail); requires minimum 11.94 mm × 5.85 mm copper pad for thermal management |
| Cathode (metal base) | Current return path and primary heat sink interface | Must be soldered directly to large copper area or heatsink; polarity marking present only on unidirectional variants |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMT construction | Enables placement in space-constrained avionics modules without height interference or airflow obstruction |
| RTCA DO-160 Section 22 compliance | Validated for multi-stroke lightning testing-critical for FAA/EASA-certified aircraft subsystems |
| IEC 61000-4-5 Class 5 support (42 Ω) | Meets highest industrial and aerospace secondary lightning immunity requirements for short-distance coupling |
| MIL-PRF-19500 upscreening option | Enables high-reliability qualification (e.g., MXL level) for mission-critical defense and space applications |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints-reduces handling overhead in production |
Applications
| Aerospace Power Distribution | Automotive Load Dump Protection |
|---|---|
Use Scenario: Protection of 28 V DC bus in flight control actuator electronics exposed to lightning-induced transients per DO-160G Section 22. IC Role / Device Role / Timing Role: Primary clamping element placed at bus entry point; responds within <100 ps to limit voltage excursion below 162 V. Use Value: Prevents latch-up or gate oxide damage in downstream PMICs and motor drivers during multi-stroke events. | Use Scenario: Safeguarding infotainment head unit power input during alternator load dump (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: Unidirectional TVS shunting surge energy to ground; clamps 100 V nominal rail to ≤162 V at 223 A peak. Use Value: Eliminates need for upstream fuse coordination or derated input capacitors while maintaining AEC-Q101 qualification. |
| Industrial Motor Drive DC Link | Railway Signaling Interface |
Use Scenario: Protecting 100 V DC link in variable-frequency drive control board from IGBT switching transients and induced RFI. IC Role / Device Role / Timing Role: Fast-response clamping device mounted adjacent to DC bus terminals; absorbs repetitive 36 kW pulses with <0.05% duty factor. Use Value: Extends electrolytic capacitor life by limiting voltage overshoot and reducing RMS ripple stress. | Use Scenario: Securing 100 V signaling lines in European railway ERTMS/ETCS Level 2 balise transmission interfaces against EFT and surge coupling. IC Role / Device Role / Timing Role: Secondary protection stage compliant with EN 50121-3-2 Class 3/4; clamps IEC 61000-4-4 bursts to safe levels. Use Value: Maintains signal integrity and prevents false triggering of trackside receivers during electromagnetic disturbances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A | 600 W PPP rating, 5.0 mm × 4.5 mm SMB package, 1.5 °C/W RθJC | Lower energy handling; suitable only for consumer-grade or non-safety-critical 100 V circuits | Select when cost sensitivity outweighs multi-stroke lightning robustness and thermal performance is less constrained. |
| SMCJ100A | 1500 W PPP rating, 7.2 mm × 6.2 mm SMC package, 1.2 °C/W RθJC | Lacks RTCA DO-160 qualification and MIL-PRF-19500 upscreening path | Choose for industrial automation where IEC 61000-4-5 Class 3 suffices and aerospace certification is not required. |
Compared with SMBJ100A and SMCJ100A, the MPLAD36KP100A delivers 24× and 24× higher peak pulse power respectively, with superior thermal dissipation (1.0 °C/W vs. ≥1.2 °C/W) and formal aviation-standard validation-making it the only choice for certified airborne equipment requiring multi-event survivability.
Availability
MPLAD36KP100A is available at Aetrix Electronics and suitable for aerospace power distribution, automotive load dump protection, industrial motor drive DC links, and railway signaling interfaces requiring stable component supply across extended product lifecycles.
Supply support for MPLAD36KP100A 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) designs high-reliability analog, mixed-signal, and power semiconductors for aerospace, defense, and industrial markets.
The MPLAD36KP100A belongs to Microsemi's PLAD-series high-power TVS family, engineered specifically for multi-stroke lightning resilience and thermal stability in safety-critical vehicle and aircraft electrical systems.
FAQ
What is the clamping voltage of the MPLAD36KP100A at its rated peak pulse current?
The MPLAD36KP100A has a maximum clamping voltage (VC) of 162 V at 223 A peak pulse current (IPP) under 10/1000 μs waveform conditions. This value is measured per standard test methods and ensures protected circuitry remains below critical voltage thresholds during surge events. The MPLAD36KP100A maintains this clamping performance across its full operating temperature range.
Is the MPLAD36KP100A RoHS compliant?
Yes, the MPLAD36KP100A is RoHS compliant and carries the "e3" designation in its nomenclature, indicating annealed matte-tin plating per JEDEC standards. It meets EU Directive 2011/65/EU requirements and is compatible with lead-free reflow processes up to 260°C for 10 seconds. The MPLAD36KP100A's RoHS compliance is verified through material declarations and third-party testing.
Does the MPLAD36KP100A support bidirectional operation?
No, the MPLAD36KP100A is a unidirectional TVS diode. Bidirectional variants carry the "CA" suffix (e.g., MPLAD36KP100CA). The MPLAD36KP100A's cathode is located on the metal base, and its anode is on the top surface pad-this polarity must be observed during PCB layout to ensure proper surge conduction to ground.
What thermal management is required for reliable operation of the MPLAD36KP100A?
The MPLAD36KP100A requires a minimum 11.94 mm × 5.85 mm copper pad on the PCB's component side, directly connected to internal ground planes or external heatsinks. Its 1.0 °C/W junction-to-case thermal resistance depends on this interface; insufficient copper area causes thermal runaway under repeated surges. The MPLAD36KP100A's derating curve (Figure 3) shows power capability drops linearly above 100°C case temperature.
Which industry standards does the MPLAD36KP100A meet for lightning protection?
The MPLAD36KP100A meets RTCA DO-160 Section 22 for multi-stroke lightning, IEC 61000-4-5 (42 Ω source) up to Class 5 (short distance), and IEC 61000-4-2/4-4 for ESD and EFT. It is also AEC-Q101 qualified and supports optional MIL-PRF-19500 upscreening. These validations are documented in Microsemi's RF01216 Rev B datasheet for the MPLAD36KP100A.
MPLAD36KP100A 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):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 162V
- Current - Peak Pulse (10/1000µs):
- 223A
- 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
MPLAD36KP100A FAQ
1.How can I place an order for MPLAD36KP100A through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP100A 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 MPLAD36KP100A reliable?
The price and inventory of MPLAD36KP100A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP100A is usually 5 days.
3.What payment methods are accepted for MPLAD36KP100A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP100A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP100A?
MPLAD36KP100A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP100A 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 MPLAD36KP100A?
For technical support, including MPLAD36KP100A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP100A requirements.
6.How does Aetrix verify that MPLAD36KP100A is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP100A 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 MPLAD36KP100A meets industry standards.
7.What is the process for return or replacement of MPLAD36KP100A?
All MPLAD36KP100A units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP100A, 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 MPLAD36KP100A part is unused and in its original packaging.
Return procedure for MPLAD36KP100A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP100A Tags
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