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Microchip Technology MPLAD36KP220A
- Part No.:
- MPLAD36KP220A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP220A.pdf
- Description:
- TVS DIODE 220VWM 356VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:4,489
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Product details
Overview
MPLAD36KP220A 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 transients to ≤356 V at 100 A, and features a 220 V reverse standoff voltage (VWM) with 245–271 V breakdown range. Its low-profile thermoset epoxy package enables robust lightning protection per RTCA DO-160 Section 22 and IEC 61000-4-5 Class 3 (42 Ω source).
For engineers reviewing the MPLAD36KP220A datasheet, MPLAD36KP220A pinout, MPLAD36KP220A application, or MPLAD36KP220A equivalent, this device is selected for high-reliability DC bus protection where multi-stroke lightning immunity, low thermal resistance (RθJC = 1.0 °C/W), and AEC-Q101 qualification are required - especially in avionics power distribution units and 24/28 V vehicle electronics.
Technical Context
The MPLAD36KP220A operates as a silicon avalanche diode-based TVS, leveraging controlled breakdown behavior to divert surge current away from sensitive circuitry. Its unidirectional polarity places the cathode on the metal baseplate, enabling direct thermal coupling to heatsinks. The device meets AEC-Q101 stress testing requirements and supports secondary lightning protection under IEC 61000-4-5 with 42 Ω, 12 Ω, and 2 Ω source impedances across multiple classes.
It is rated for junction temperatures from –55 °C to +150 °C and exhibits a temperature coefficient of breakdown voltage (αVBR) of 269 mV/°C. Standby leakage current is limited to 10 μA at 220 VWM, and clamping response time is <100 ps - critical for protecting fast-switching MOSFETs and gate drivers against induced RFI and EFT events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 36,000 W - sustains single-stroke lightning surges up to 36 kW without failure |
| Reverse Standoff Voltage (VWM) | 220 V - maximum continuous DC or peak AC voltage before conduction begins |
| Breakdown Voltage Range | 245–271 V @ 5 mA - defines minimum clamping threshold under surge conditions |
| Max Clamping Voltage (VC) | 356 V @ 100 A - limits downstream voltage stress during full-rated surge event |
| Thermal Resistance (Junction-to-Case) | 1.0 °C/W - enables efficient heat transfer to PCB copper or external heatsink |
| Standby Leakage Current | 10 μA @ 220 V - ensures minimal power loss and no false triggering in standby |
| Temperature Coefficient (αVBR) | 269 mV/°C - quantifies VBR drift over operating temperature range |
Pinout & Package
Package: PLAD (Plastic Leaded Anode Down) - void-free UL94V-0 thermosetting epoxy body with tin-lead or RoHS-compliant matte-tin plating; metal baseplate serves as cathode terminal and primary thermal path. 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) | Surge Current Entry Point | Connects to protected line (e.g., 28 V DC bus); carries full IPP during clamping |
| Cathode (Metal Baseplate) | Surge Current Return Path & Thermal Interface | Must be soldered to large copper pour or heatsink; provides lowest RθJC and electrical return |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 Qualified | Validated for automotive-grade reliability including HTOL, TC, and HAST testing |
| RTCA DO-160F Waveform 4 Compliance | Level 4 protection (6.4/69 μs) up to 220 VWM - certified for aircraft power system surge immunity |
| IEC 61000-4-5 Secondary Lightning Protection | Class 3 support with 42 Ω source impedance - meets stringent industrial and avionics surge standards |
| Low Profile Surface Mount | Height ≤5.33 mm - enables compact placement near connectors or power entry points without height clearance issues |
| Moisture Sensitivity Level 1 | No dry pack required per J-STD-020B - simplifies SMT assembly and reduces handling cost |
Applications
| Aerospace Power Distribution | Automotive Load Dump Protection |
|---|---|
Use Scenario: 28 V DC power bus in commercial aircraft avionics bays exposed to lightning-induced transients per DO-160 Section 22. IC Role / Device Role / Timing Role: Primary transient suppression device placed at main power input to protect downstream DC-DC converters and flight control electronics. Use Value: Withstands ≥100 multi-stroke lightning surges while maintaining clamping below 356 V - prevents latch-up or burnout in MIL-STD-704 compliant supplies. | Use Scenario: 12/24 V battery-fed engine control modules subjected to ISO 7637-2 Load Dump pulses up to 120 V. IC Role / Device Role / Timing Role: Unidirectional TVS shunting load dump energy directly to chassis ground via metal baseplate. Use Value: 36 kW rating handles 120 V × 300 A transients without degradation; RθJC = 1.0 °C/W enables stable operation without forced air cooling. |
| Industrial Motor Drive DC Bus | Railway Signaling Power Input |
Use Scenario: 300 V DC intermediate bus in variable-frequency drives exposed to switching-induced transients from IGBT commutation. IC Role / Device Role / Timing Role: Fast-response clamping element placed across DC link capacitors to limit voltage overshoot during regenerative braking. Use Value: <100 ps response time ensures clamping initiates before MOSFET avalanche breakdown; 220 VWM allows safe margin above nominal 220 V bus. | Use Scenario: 110 V DC signaling interface in rail transit control cabinets subject to EFT bursts and indirect lightning coupling. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), absorbing residual energy per IEC 61000-4-4/5. Use Value: 10 μA leakage preserves signal integrity in high-impedance monitoring circuits; RoHS-compliant e3 plating ensures long-term corrosion resistance in humid tunnels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220A | 600 W PPP rating, SMA package, RθJC ≈ 40 °C/W, VC = 356 V @ 17.1 A | Not suitable for multi-stroke lightning or >100 A surges; limited to consumer/industrial low-energy interfaces | Select only for cost-sensitive, low-duty-cycle applications where 36 kW capability is unnecessary |
| SMCJ220A | 1500 W PPP rating, SMC package, RθJC ≈ 15 °C/W, VC = 356 V @ 42.2 A | Lacks AEC-Q101 and DO-160 certification; insufficient for aviation or automotive load dump compliance | Acceptable for non-safety-critical industrial controls but requires derating for repeated surges |
Compared with SMBJ220A and SMCJ220A, the MPLAD36KP220A delivers 24× and 24× higher peak pulse power respectively, with superior thermal management and formal qualification for aerospace and automotive surge standards - making it the only option when multi-stroke lightning immunity and AEC-Q101 reliability are mandatory.
Availability
MPLAD36KP220A is available at Aetrix Electronics and suitable for aerospace power distribution, automotive load dump protection, and industrial motor drive DC bus applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for safety-critical designs.
Supply support for MPLAD36KP220A 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 ICs for aerospace, defense, and industrial markets.
The MPLAD36KP220A belongs to Microsemi's PLAD-series high-power TVS family, engineered specifically for mission-critical surge protection where multi-stroke lightning resilience, low thermal resistance, and AEC-Q101 qualification are non-negotiable design requirements.
FAQ
What is the clamping voltage of the MPLAD36KP220A at its rated peak pulse current?
The MPLAD36KP220A has a maximum clamping voltage (VC) of 356 V at 100 A peak pulse current under 10/1000 μs waveform conditions. This value is measured per Figure 3 in the RF01216 datasheet and represents the upper limit of voltage seen by downstream circuitry during full-rated surge events - critical for ensuring MOSFETs and controllers remain within safe operating area.
Is the MPLAD36KP220A qualified for automotive applications?
Yes, the MPLAD36KP220A is tested and qualified to AEC-Q101 standards, covering stress tests such as high-temperature operating life, temperature cycling, and humidity bias HAST. It is explicitly recommended for automotive load dump protection in 12 V and 24 V systems, with documented performance up to 120 V transients and compatibility with ISO 7637-2 test profiles.
How does the PLAD package of the MPLAD36KP220A improve thermal performance compared to standard SMC or SMB packages?
The PLAD package of the MPLAD36KP220A uses a metal baseplate as the cathode terminal, achieving a junction-to-case thermal resistance (RθJC) of just 1.0 °C/W - over 15× lower than typical SMC packages (~15 °C/W) and ~40× lower than SMB packages (~40 °C/W). This enables direct mounting to heatsinks or large PCB copper areas, preventing thermal runaway during repetitive surge events.
Does the MPLAD36KP220A meet RTCA DO-160 lightning protection requirements?
Yes, the MPLAD36KP220A is certified for RTCA DO-160F Section 22 lightning-induced transient protection, including Waveform 4 (6.4/69 μs) at Level 4 up to 220 VWM. Its 36 kW rating and sub-100 ps response time ensure compliance with multi-stroke lightning standards required for commercial aircraft power systems and avionics equipment.
What is the polarity configuration and mounting orientation requirement for the MPLAD36KP220A?
The MPLAD36KP220A is unidirectional, with the cathode located on the metal baseplate (bottom side) and the anode on the top surface pad. Correct mounting requires soldering the baseplate to a grounded thermal pad or heatsink, while the top pad connects to the protected line. Polarity marking is absent on unidirectional versions - orientation must be verified using schematic symbol and PCB silkscreen alignment.
MPLAD36KP220A 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):
- 220V
- Voltage - Breakdown (Min):
- 245V
- Voltage - Clamping (Max) @ Ipp:
- 356V
- Current - Peak Pulse (10/1000µs):
- 102A
- 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
MPLAD36KP220A FAQ
1.How can I place an order for MPLAD36KP220A through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP220A 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 MPLAD36KP220A reliable?
The price and inventory of MPLAD36KP220A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP220A is usually 5 days.
3.What payment methods are accepted for MPLAD36KP220A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP220A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP220A?
MPLAD36KP220A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP220A 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 MPLAD36KP220A?
For technical support, including MPLAD36KP220A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP220A requirements.
6.How does Aetrix verify that MPLAD36KP220A is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP220A 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 MPLAD36KP220A meets industry standards.
7.What is the process for return or replacement of MPLAD36KP220A?
All MPLAD36KP220A units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP220A, 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 MPLAD36KP220A part is unused and in its original packaging.
Return procedure for MPLAD36KP220A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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