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Microchip Technology MXLPLAD36KP30CA
- Part No.:
- MXLPLAD36KP30CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MXLPLAD36KP30CA.pdf
- Description:
- TVS DIODE 30VWM 48.8VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:6,895
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Product details
Overview
MXLPLAD36KP30CA from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace and automotive systems. It delivers 36 kW peak pulse power at 10/1000 μs, features a 30 V reverse standoff voltage (VWM), clamps to ≤48.8 V at 738 A peak current, and meets RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MXLPLAD36KP30CA datasheet, MXLPLAD36KP30CA pinout, MXLPLAD36KP30CA application, or MXLPLAD36KP30CA equivalent, key selection criteria include its bidirectional polarity, 30 V VWM rating, 48.8 V max clamping voltage at 738 A, IEC 61000-4-5 Class 5 compliance with 42 Ω source impedance, and suitability for secondary lightning protection in avionics power rails.
Technical Context
This device operates as a silicon avalanche diode-based TVS, leveraging controlled breakdown characteristics to clamp transients without latch-up. Its bidirectional construction enables symmetrical clamping for AC-coupled or floating signal/power lines, and it is validated for RTCA DO-160F Waveform 4 (6.4/69 μs) Level 5 protection up to 300 V VWM variants.
Thermal design is optimized via low RθJC = 1.0 °C/W and metal-base cathode construction for direct heat sinking. It supports steady-state dissipation of 71 W at TC = 100°C and complies with AEC-Q101 for automotive reliability, while RoHS-compliant e3 plating ensures solderability per MIL-STD-750 Method 2026.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous operating voltage before clamping begins; sets minimum system rail margin. |
| V(BR) min/max | 33.3–36.8 V - Breakdown occurs within this range at 5 mA; defines turn-on threshold tolerance. |
| VC @ IPP | ≤48.8 V at 738 A - Clamping voltage under 10/1000 μs surge; determines protected circuit's maximum overvoltage stress. |
| PPP | 36,000 W - Peak pulse power handling capability; enables robust lightning strike suppression per DO-160. |
| RθJC | 1.0 °C/W - Junction-to-case thermal resistance; allows direct mounting to heatsink for sustained surge duty. |
| ID @ VWM | ≤10 μA - Standby leakage current at 30 V; ensures minimal power loss in always-on systems. |
| αV(BR) | 30 mV/°C - Temperature coefficient of breakdown voltage; enables predictable derating across -55°C to +150°C. |
Pinout & Package
MXLPLAD36KP30CA uses a surface-mount PLAD package with metal base cathode (case) and two solderable terminals. The metal base serves as the cathode for unidirectional versions and both terminals for bidirectional operation; polarity marking applies only to unidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode (bidirectional) / Anode (unidirectional) | Primary surge current entry point; symmetric conduction path in bidirectional configuration. |
| Terminal 2 | Cathode (bidirectional) / Cathode (unidirectional) | Connected to metal base; provides low-inductance thermal path and mechanical anchoring to PCB heatsink pad. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled or floating bus lines without polarity sensitivity-critical for aircraft data buses and sensor interfaces. |
| DO-160F Waveform 4 Level 5 compliance | Validated for 6.4/69 μs pin-injection surges up to 300 V VWM group; ensures immunity in flight control and navigation subsystems. |
| MIL-PRF-19500 upscreening option | Supports high-reliability screening levels MX/MXL for space-qualified or mission-critical avionics deployments. |
| Low-profile thermally enhanced package | 12.32 × 14.86 mm footprint with 1.0 °C/W RθJC enables compact placement on power input stages with minimal board area. |
| IEC 61000-4-5 Class 5 support (42 Ω) | Meets highest secondary lightning protection level for long-distance wiring harnesses in commercial aircraft airframes. |
Applications
| Avionics Power Input Protection | Aircraft Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 28 V DC main power distribution to flight control computers against induced lightning transients during ground operations and in-flight events. IC Role / Device Role / Timing Role: Primary secondary-level TVS placed at power entry point upstream of DC-DC converters and EMI filters. Use Value: Limits transient voltage to ≤48.8 V during 36 kW surges, preventing latch-up or damage to downstream ASICs and FPGAs rated for 36 V absolute maximum. | Use Scenario: Safeguarding ARINC 429 or RS-485 sensor links (e.g., pitot-static, temperature probes) from coupled EFT and RFI in wing and empennage zones. IC Role / Device Role / Timing Role: Bidirectional clamping element on differential pair lines, absorbing common-mode surges without disrupting signal integrity. Use Value: Maintains <100 ps response time and ≤48.8 V clamping to preserve receiver input thresholds and avoid false triggering in safety-critical monitoring systems. |
| Automotive Load Dump Suppression | Industrial Motor Drive DC Bus Protection |
Use Scenario: Mitigating 12 V battery system load dump spikes (up to 120 V, 400 ms) in engine control units and body control modules. IC Role / Device Role / Timing Role: High-energy TVS placed across battery input after fuse, shunting surge energy before LDO regulators and microcontrollers. Use Value: Withstands 738 A peak current and dissipates 36 kW without degradation, meeting ISO 7637-2 Pulse 5a requirements for Class A/B vehicles. | Use Scenario: Protecting 300–400 V DC bus inputs in servo drives and inverters from switching transients generated by IGBT commutation and regenerative braking. IC Role / Device Role / Timing Role: Bidirectional TVS mounted directly on bus capacitor terminals to clamp fast-rising dv/dt events. Use Value: Achieves 48.8 V clamping at 738 A with <5 ns response, limiting overvoltage stress on bus capacitors and gate drivers during fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30CA | 600 W PPP rating, 30 V VWM, SMB package, RθJA = 40 °C/W, no DO-160 qualification | Designed for consumer/industrial grade surge suppression; lacks aviation-grade screening and multi-stroke validation | Select when cost-sensitive, non-certified designs require basic 30 V bidirectional clamping without aerospace compliance. |
| SMCJ30CA | 1500 W PPP rating, 30 V VWM, SMC package, RθJA = 25 °C/W, AEC-Q101 qualified but not DO-160 tested | Targets automotive ECUs needing higher reliability than SMBJ but without full DO-160F Waveform 4/5 validation | Choose for automotive power modules where 1.5 kW surge capacity suffices and formal lightning certification is not required. |
Compared with SMBJ30CA and SMCJ30CA, MXLPLAD36KP30CA delivers 24× and 24× higher peak pulse power respectively, supports certified DO-160F Level 5 immunity, and offers traceable high-reliability screening-making it uniquely suitable for primary lightning protection in certified avionics platforms.
Availability
MXLPLAD36KP30CA is available at Aetrix Electronics and suitable for avionics power input protection, aircraft sensor interface protection, and automotive load dump suppression requiring stable component supply across extended production lifecycles.
Supply support for MXLPLAD36KP30CA 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 solutions for aerospace, defense, and industrial markets.
The PLAD series was developed specifically for high-power transient suppression in certified aircraft systems, emphasizing DO-160 compliance, thermal robustness, and lot-traceable manufacturing for mission-critical applications.
FAQ
What is the clamping voltage specification for MXLPLAD36KP30CA under standard 10/1000 μs surge conditions?
The MXLPLAD36KP30CA has a maximum clamping voltage (VC) of 48.8 V at 738 A peak pulse current under 10/1000 μs waveform conditions. This value is measured per Figure 3 in the RF01216 datasheet and defines the upper voltage limit imposed on protected circuits during worst-case surge events. The MXLPLAD36KP30CA maintains this clamping performance across its full operating temperature range of –55°C to +150°C.
Does MXLPLAD36KP30CA meet RTCA DO-160F lightning protection requirements?
Yes, MXLPLAD36KP30CA is validated for RTCA DO-160F Section 22 multi-stroke lightning testing, including Waveform 4 (6.4/69 μs) Level 5 up to 300 V VWM variants. As a member of the MPLAD36KPxxCA family, it satisfies Level 5 pin injection requirements for 30 V standoff devices and supports secondary lightning protection per IEC 61000-4-5 with 42 Ω source impedance. The MXLPLAD36KP30CA achieves this with no derating required at 25°C ambient.
What is the thermal resistance and heatsinking requirement for MXLPLAD36KP30CA?
MXLPLAD36KP30CA has a junction-to-case thermal resistance (RθJC) of 1.0 °C/W, enabling direct mounting to an external heatsink or copper pour. Its metal base serves as the cathode and primary thermal path; recommended pad layout specifies a 11.94 × 5.85 mm thermal pad per datasheet Figure 6. At TC = 100°C, the device sustains 71 W steady-state dissipation, and MXLPLAD36KP30CA requires no additional thermal interface material when soldered to a properly sized FR4 heatsink pad.
Is MXLPLAD36KP30CA RoHS compliant and what plating does it use?
Yes, MXLPLAD36KP30CA is RoHS compliant, indicated by the "e3" suffix in its full nomenclature. It uses annealed matte-tin plating on terminals, qualified per MIL-STD-750 Method 2026 for solderability. The device meets IPC/JEDEC J-STD-020B moisture sensitivity Level 1, eliminating dry pack requirements. MXLPLAD36KP30CA's RoHS compliance is verified through lot-level chemical analysis and documented in Microsemi's product conformance reports.
How does the bidirectional construction of MXLPLAD36KP30CA affect its circuit implementation?
The bidirectional construction of MXLPLAD36KP30CA allows symmetrical clamping across both polarities, making it ideal for protecting AC-coupled signals, floating buses, or ungrounded power domains without polarity concerns. Unlike unidirectional TVS diodes, MXLPLAD36KP30CA conducts equally in both directions above its breakdown threshold, eliminating the need for orientation-aware placement. This simplifies layout in differential interfaces like ARINC 429 or isolated CAN transceivers where ground reference is unstable.
MXLPLAD36KP30CA 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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.8V
- Current - Peak Pulse (10/1000µs):
- 738A
- 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
MXLPLAD36KP30CA FAQ
1.How can I place an order for MXLPLAD36KP30CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLPLAD36KP30CA 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 MXLPLAD36KP30CA reliable?
The price and inventory of MXLPLAD36KP30CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLPLAD36KP30CA is usually 5 days.
3.What payment methods are accepted for MXLPLAD36KP30CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLPLAD36KP30CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLPLAD36KP30CA?
MXLPLAD36KP30CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLPLAD36KP30CA 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 MXLPLAD36KP30CA?
For technical support, including MXLPLAD36KP30CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLPLAD36KP30CA requirements.
6.How does Aetrix verify that MXLPLAD36KP30CA is sourced from the original manufacturer or authorized distributors?
All MXLPLAD36KP30CA 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 MXLPLAD36KP30CA meets industry standards.
7.What is the process for return or replacement of MXLPLAD36KP30CA?
All MXLPLAD36KP30CA units undergo pre-shipment inspection (PSI). If there is an issue with MXLPLAD36KP30CA, 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 MXLPLAD36KP30CA part is unused and in its original packaging.
Return procedure for MXLPLAD36KP30CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLPLAD36KP30CA Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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Diodes Incorporated
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