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Microchip Technology MPLAD36KP200CA
- Part No.:
- MPLAD36KP200CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP200CA.pdf
- Description:
- TVS DIODE 200VWM 322VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:9,461
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Product details
Overview
MPLAD36KP200CA from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace, automotive, and industrial systems. It delivers 36 kW peak pulse power at 10/1000 μs, features a 200 V reverse standoff voltage (VWM), clamps to ≤322 V at 112 A peak pulse current (IPP), and meets RTCA DO-160 Section 22 multi-stroke lightning requirements in aircraft avionics.
For engineers reviewing the MPLAD36KP200CA datasheet, MPLAD36KP200CA pinout, MPLAD36KP200CA application, or MPLAD36KP200CA equivalent, this device is selected for secondary lightning protection per IEC 61000-4-5 (42 Ω, 12 Ω, and 2 Ω source impedances), pin-injection immunity per RTCA/DO-160F Waveform 4 (Level 4 up to 400 V), and ESD/EFT robustness per IEC 61000-4-2/-4-4.
Technical Context
The MPLAD36KP200CA operates as a silicon avalanche diode with bidirectional clamping symmetry, enabling suppression of both positive and negative transients without polarity sensitivity. Its low thermal resistance (RθJC = 1.0 °C/W) and void-free UL94V-0 epoxy package support high-reliability mounting on FR4 PCBs with recommended pad layout for optimal heat dissipation.
It is rated for junction temperatures from –55 °C to +150 °C and undergoes 100% surge testing per MIL-STD-750 Method 2026. Standby current (ID) is ≤10 μA at 200 V, and breakdown voltage (VBR) is specified at 222–245 V @ 5 mA, ensuring stable threshold behavior across temperature and lot variance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - enables single-device protection against severe lightning-induced surges in avionics and vehicle ECUs |
| Reverse Standoff Voltage (VWM) | 200 V - matches nominal 115/200 VAC-derived DC bus or 28 V aircraft systems with margin for ripple and transients |
| Clamping Voltage (VC @ IPP) | ≤322 V @ 112 A - limits downstream IC stress below 350 V during full-power surge events |
| Breakdown Voltage (VBR) | 222–245 V @ 5 mA - defines precise avalanche initiation window for repeatable clamping onset |
| Standby Current (ID) | ≤10 μA @ 200 V - ensures negligible leakage in always-on power rails and battery-backed circuits |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - allows direct thermal coupling to heatsink or copper pour for sustained multi-pulse operation |
Pinout & Package
Package: PLAD (Plastic Leaded Anvil Device), surface-mount, void-free UL94V-0 epoxy body with tin-lead or RoHS-compliant matte-tin plating. Dimensions: 12.32 × 10.54 × 5.08 mm (L × W × H), weight ≈ 1.7–2.0 g. Cathode terminal is the metal base (bottom side) for unidirectional variants; bidirectional variant MPLAD36KP200CA has symmetric terminals with no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Terminal 1 | Transient current entry (positive half-cycle) | Connects to protected line; forms one side of bidirectional avalanche path |
| Cathode / Terminal 2 | Transient current entry (negative half-cycle) | Connects to protected line; symmetric with Terminal 1 for bidirectional clamping |
| Metal Base (Bottom) | Thermal conduction path | Must be soldered to large copper area or heatsink for RθJC = 1.0 °C/W performance |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping architecture | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| RTCA DO-160 Section 22 compliance | Validated for multi-stroke lightning testing in aircraft environmental qualification programs |
| IEC 61000-4-5 Class 5 support (42 Ω source) | Meets highest-level secondary lightning immunity for long-distance wiring in industrial control cabinets |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints for automated SMT assembly |
| AEC-Q101 qualified | Confirms reliability for automotive under-hood and powertrain applications including load-dump scenarios |
Applications
| Aircraft Avionics Power Input | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Protecting 28 V DC primary power input of flight management computers and communication radios from lightning-induced surges on airframe wiring. IC Role / Device Role / Timing Role: Primary secondary surge protector placed upstream of DC-DC converters and LDOs. Use Value: Clamps transients to ≤322 V while sustaining 36 kW pulses, preventing latch-up or burnout in downstream ASICs and FPGAs. | Use Scenario: Safeguarding 12 V/24 V power rail of diesel engine control modules exposed to ISO 7637-2 load-dump transients up to 120 V. IC Role / Device Role / Timing Role: High-energy TVS placed at main power entry before bulk capacitance and regulator ICs. Use Value: Absorbs 112 A peak current within 1000 μs, limiting voltage overshoot to safe levels for automotive-grade microcontrollers. |
| Industrial Motor Drive DC Bus | Railway Signaling Interface |
Use Scenario: Shielding 200–300 V DC link inputs of variable-frequency drives from switching-induced transients and ground potential differences. IC Role / Device Role / Timing Role: Bidirectional TVS bridging DC+ and DC− rails to clamp common-mode surges. Use Value: Symmetric 200 V standoff and ≤322 V clamping ensure balanced protection without polarity misalignment risk. | Use Scenario: Protecting RS-485 data lines and 24 V auxiliary power in track-side signaling controllers subjected to induced lightning surges. IC Role / Device Role / Timing Role: Line-end TVS on field-side interface connectors meeting EN 50121-4 immunity requirements. Use Value: Supports IEC 61000-4-5 Class 4 (2 Ω source) up to 130 V, enabling robust operation in high-noise rail infrastructure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ200CA | 600 W PPP rating, 200 V VWM, same bidirectional polarity but lower energy handling | Suitable for consumer or industrial I/O protection where surge severity is limited to IEC 61000-4-5 Class 2–3 | Select SMBJ200CA only when peak surge energy is <10% of MPLAD36KP200CA's capability and PCB space is constrained. |
| SMCJ200CA | 1500 W PPP rating, identical VWM and bidirectional construction, but 3× smaller footprint and higher RθJA | Applicable for compact designs requiring moderate surge immunity (e.g., telecom line cards, PoE injectors) | Choose SMCJ200CA when board space is critical and surge duty cycle is low; avoid for multi-stroke or aviation use. |
Compared with SMBJ200CA and SMCJ200CA, the MPLAD36KP200CA provides 24× and 24× higher peak pulse power respectively, enabling certified lightning protection in safety-critical aerospace and heavy-duty automotive systems where lower-rated devices would fail catastrophically.
Availability
MPLAD36KP200CA is available at Aetrix Electronics and suitable for aircraft avionics, automotive engine control units, industrial motor drive DC buses, and railway signaling interfaces requiring stable component supply across extended product lifecycles.
Supply support for MPLAD36KP200CA 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 analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The MPLAD36KP200CA belongs to Microsemi's PLAD-series high-power TVS family, engineered specifically for mission-critical surge immunity in environments governed by RTCA DO-160, AEC-Q101, and IEC 61000-4-x standards.
FAQ
What is the maximum clamping voltage of the MPLAD36KP200CA at its rated peak pulse current?
The MPLAD36KP200CA has a maximum clamping voltage (VC) of 322 V at its rated peak pulse current of 112 A under 10/1000 μs waveform conditions. This value is guaranteed across temperature and manufacturing lots, and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The MPLAD36KP200CA maintains this clamping performance while dissipating 36 kW of transient energy.
Does the MPLAD36KP200CA require special PCB layout considerations for thermal management?
Yes - the MPLAD36KP200CA requires a dedicated thermal pad layout per Microsemi's recommended footprint (Ref. A=11.94 mm, B=5.85 mm) and direct connection of its metal base to ≥250 mm² of 2-oz copper pour or an external heatsink. Failure to implement this results in junction temperature exceeding 150 °C during repeated surges, degrading reliability. The MPLAD36KP200CA's RθJC of 1.0 °C/W is only achievable with this layout.
Is the MPLAD36KP200CA compliant with automotive qualification standards?
Yes - the MPLAD36KP200CA is tested and qualified to AEC-Q101 for discrete semiconductors, covering stress tests including HTGB, HTRB, TST, and surge. It is approved for under-hood and powertrain applications such as alternator load-dump protection and ECU power rail conditioning. The MPLAD36KP200CA also supports ISO 7637-2 Pulse 5a/b waveforms when applied with appropriate series impedance.
Can the MPLAD36KP200CA be used for IEC 61000-4-5 Level 5 surge protection?
Yes - the MPLAD36KP200CA is explicitly rated for IEC 61000-4-5 Level 5 with 42 Ω source impedance in short-distance configurations and Level 5 with 12 Ω source impedance for Class 3 applications. Its 36 kW PPP rating exceeds the 4 kV/2 kA test requirement, and its clamping behavior is validated per Figure 3 derating curves. The MPLAD36KP200CA remains effective up to ambient temperatures of 100 °C under these conditions.
What does the "CA" suffix indicate in MPLAD36KP200CA?
"CA" denotes bidirectional construction: the MPLAD36KP200CA provides symmetrical clamping for both positive and negative transients, unlike unidirectional variants (e.g., MPLAD36KP200A) that clamp only in reverse bias. This eliminates polarity-dependent placement errors and enables protection of AC-coupled, differential, or floating signal paths. The MPLAD36KP200CA achieves this via matched avalanche junctions on both terminals.
MPLAD36KP200CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- Nonstandard SMD
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 200V
- Voltage - Breakdown (Min):
- 222V
- Voltage - Clamping (Max) @ Ipp:
- 322V
- Current - Peak Pulse (10/1000µs):
- 112A
- 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
MPLAD36KP200CA FAQ
1.How can I place an order for MPLAD36KP200CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP200CA 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 MPLAD36KP200CA reliable?
The price and inventory of MPLAD36KP200CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP200CA is usually 5 days.
3.What payment methods are accepted for MPLAD36KP200CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP200CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP200CA?
MPLAD36KP200CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP200CA 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 MPLAD36KP200CA?
For technical support, including MPLAD36KP200CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP200CA requirements.
6.How does Aetrix verify that MPLAD36KP200CA is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP200CA 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 MPLAD36KP200CA meets industry standards.
7.What is the process for return or replacement of MPLAD36KP200CA?
All MPLAD36KP200CA units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP200CA, 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 MPLAD36KP200CA part is unused and in its original packaging.
Return procedure for MPLAD36KP200CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP200CA Tags
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