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Microchip Technology MXLPLAD36KP15A
- Part No.:
- MXLPLAD36KP15A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MXLPLAD36KP15A.pdf
- Description:
- TVS DIODE 15VWM 25.8VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:7,861
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Product details
Overview
MXLPLAD36KP15A from Microsemi is a high-reliability, surface-mount unidirectional transient voltage suppressor (TVS) rated for 36 kW peak pulse power at 10/1000 μs, with 15 V reverse standoff voltage (VWM), 15.6–17.2 V breakdown voltage (V(BR)), and 24.0 V maximum clamping voltage (VC) at 3000 A IPP. It delivers lightning and load dump protection in aerospace avionics meeting RTCA DO-160 Section 22.
For engineers reviewing the MXLPLAD36KP15A datasheet, MXLPLAD36KP15A pinout, MXLPLAD36KP15A application, or MXLPLAD36KP15A equivalent, key selection criteria include its 1.0 °C/W junction-to-case thermal resistance, RoHS-compliant e3 plating, MIL-PRF-19500 upscreening capability, AEC-Q101 qualification, and bidirectional variant compatibility (MPLAD36KP15CA).
Technical Context
This TVS diode operates as a clamping-type surge protector using silicon avalanche junction technology. It exhibits <100 ps response time to transients, supports 3σ lot-norm screening on standby current (ID), and maintains stable clamping performance under multi-stroke lightning conditions per RTCA DO-160F Waveform 4 (Level 4) and Waveform 5A (Level 4).
Designed for high-energy transient suppression in harsh environments, it features void-free UL94V-0 epoxy packaging, tin-lead or matte-tin terminations compliant with MIL-STD-750 Method 2026, and polarity marking with cathode on the metal base - requiring correct PCB pad layout per documented thermal pad dimensions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous operating voltage before clamping begins; sets minimum system bus rating. |
| V(BR) @ I(BR) | 15.6–17.2 V - Breakdown occurs within this range at 5 mA; ensures predictable turn-on margin above VWM. |
| VC @ IPP | 24.0 V at 3000 A - Clamping voltage during worst-case 10/1000 μs surge; defines maximum stress on downstream ICs. |
| PPP | 36,000 W - Peak pulse power handling at 10/1000 μs; enables single-device protection against aircraft lightning strokes. |
| RθJC | 1.0 °C/W - Junction-to-case thermal resistance; allows direct heatsink mounting for sustained multi-pulse operation. |
| ID @ VWM | 3000 μA max - Standby leakage at rated standoff; low enough to avoid battery drain in always-on avionics rails. |
| αV(BR) | 10 mV/°C - Temperature coefficient of breakdown voltage; enables accurate derating over -55°C to +150°C junction range. |
Pinout & Package
MXLPLAD36KP15A uses a surface-mount PLAD package with metal-base cathode construction. The device has two terminals: anode (top-side metallization) and cathode (exposed metal base). Thermal management relies on soldering the cathode base directly to a large copper thermal pad per documented pad layout (A = 0.470", B = 0.230", C = 0.100").
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (unidirectional) | Connected to protected line; conducts surge current toward cathode during overvoltage events. |
| Cathode | Current return path & thermal interface | Exposed metal base serves as both electrical return and primary heat conduction path to PCB heatsink area. |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW peak pulse power rating | Enables single-device compliance with RTCA DO-160 Section 22 lightning test levels without parallel stacking. |
| 1.0 °C/W junction-to-case thermal resistance | Supports >1000 pulses at 0.05% duty cycle when mounted on FR4 with recommended thermal pad. |
| MIL-PRF-19500 upscreening options | Allows selection of M, MA, MX, or MXL reliability levels for mission-critical aerospace deployments. |
| AEC-Q101 qualified | Validates robustness for automotive load dump and ISO 7637-2 transient immunity applications. |
| RoHS-compliant e3 termination | Matte-tin plating ensures lead-free assembly compatibility and long-term solder joint reliability. |
Applications
| Avionics Lightning Protection | Automotive Load Dump Suppression |
|---|---|
Use Scenario: Protecting ARINC 429 data buses and sensor inputs in commercial aircraft against multi-stroke lightning per RTCA DO-160F Section 22. IC Role / Device Role / Timing Role: Primary clamping TVS placed at connector entry point to shunt induced surges before reaching level-shifting or isolation ICs. Use Value: 24.0 V clamping at 3000 A limits transient overshoot below 26 V, preserving 3.3 V/5 V logic supply integrity without additional series impedance. | Use Scenario: Safeguarding engine control unit (ECU) power inputs during alternator load dump events per ISO 7637-2 Pulse 5a (110 V, 400 ms). IC Role / Device Role / Timing Role: Unidirectional TVS connected between battery rail and ground, absorbing 36 kW energy bursts without failure. Use Value: 15 V VWM matches nominal 12 V automotive systems while 36,000 W PPP handles worst-case 120 V/100 ms transients without degradation. |
| Industrial Motor Drive I/O Protection | Railway Signaling Interface Protection |
Use Scenario: Shielding PLC analog input modules from inductive kickback and EFT noise generated by contactor switching in factory automation. IC Role / Device Role / Timing Role: TVS placed across signal lines (e.g., 4–20 mA loop) to clamp fast transients before precision ADC front-end stages. Use Value: Sub-100 ps response time ensures clamping activation before 1 kV/μs EFT edges propagate into signal conditioning circuitry. | Use Scenario: Securing trackside signaling interfaces (EN 50121-4) against induced surges from nearby traction currents and lightning coupling. IC Role / Device Role / Timing Role: Bidirectional-capable variant (MPLAD36KP15CA) used on AC-coupled RS-485 lines to handle ±1 kV common-mode transients. Use Value: 24.0 V clamping voltage ensures rail-to-rail signal swing remains within ±5 V tolerance of isolated transceivers even during 42 Ω IEC 61000-4-5 Class 4 surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | 600 W PPP rating, DO-214AA package, RθJC ≈ 40 °C/W | Not suitable for RTCA DO-160 lightning-level protection; limited to IEC 61000-4-5 Class 2 | Select only for cost-sensitive industrial controls where 36 kW surge capacity is unnecessary. |
| SMCJ15A | 1500 W PPP rating, DO-214AB package, RθJC ≈ 15 °C/W | Cannot meet multi-stroke lightning requirements; lacks MIL-PRF-19500 screening options | Use where AEC-Q101 compliance is required but aerospace-grade reliability is not mandated. |
Compared with SMBJ15A and SMCJ15A, MXLPLAD36KP15A provides 24× and 24× higher peak pulse power respectively, enabling single-device compliance with aviation lightning standards and eliminating need for parallel TVS arrays or external heatsinks.
Availability
MXLPLAD36KP15A is available at Aetrix Electronics and suitable for avionics lightning protection, automotive load dump suppression, and industrial motor drive I/O protection requiring stable component supply across extended production lifecycles.
Supply support for MXLPLAD36KP15A 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 semiconductors for aerospace, defense, and industrial markets, with expertise in radiation-hardened ICs, timing solutions, and discrete protection devices.
The PLAD family was developed specifically for high-energy transient suppression in safety-critical platforms, emphasizing low thermal resistance, MIL-PRF-19500 upscreening, and compliance with RTCA DO-160, IEC 61000-4-5, and AEC-Q101 standards.
FAQ
What is the clamping voltage of MXLPLAD36KP15A at its rated peak pulse current?
The MXLPLAD36KP15A has a maximum clamping voltage (VC) of 24.0 V at 3000 A peak pulse current (IPP) 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 transients. The MXLPLAD36KP15A maintains this clamping performance across its full operating temperature range when properly mounted.
Is MXLPLAD36KP15A suitable for bidirectional signal line protection?
No - MXLPLAD36KP15A is a unidirectional TVS diode, with cathode on the metal base and anode on the top surface. For bidirectional protection, the equivalent part is MPLAD36KP15CA (CA suffix denotes bidirectional construction). Using MXLPLAD36KP15A on AC-coupled or differential lines would result in forward conduction during negative transients, potentially damaging the device or circuit.
Does MXLPLAD36KP15A require a heatsink for standard operation?
MXLPLAD36KP15A does not require an external heatsink for single-event surge suppression, as its 1.0 °C/W junction-to-case thermal resistance allows efficient heat transfer to the PCB thermal pad. However, for repetitive surge applications (e.g., >10 pulses at 0.05% duty cycle), mounting on a ≥25 mm² copper area per the documented pad layout (A=0.470", B=0.230") is mandatory to maintain junction temperature below 150°C.
What reliability screening levels are available for MXLPLAD36KP15A?
MXLPLAD36KP15A supports MIL-PRF-19500 upscreening levels M, MA, MX, and MXL - with MXL indicating the highest reliability tier including extended burn-in, hermeticity verification, and lot traceability. Screening options are selected via the prefix (e.g., MXL = MXLPLAD36KP15A); all versions undergo AEC-Q101 qualification and 3σ lot-norm screening on standby current (ID).
How does MXLPLAD36KP15A perform under RTCA DO-160F lightning testing?
MXLPLAD36KP15A meets RTCA DO-160F Section 22 Waveform 4 (6.4/69 μs) Level 4 and Waveform 5A (40/120 μs) Level 4 for pin injection protection. Its 36 kW rating and sub-100 ps response enable multi-stroke survivability without parameter shift. Performance is validated per MicroNote 132 for temperature derating and requires adherence to specified pad layout and mounting torque per RF01216 Rev B.
MXLPLAD36KP15A 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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 25.8V
- Current - Peak Pulse (10/1000µs):
- 1396A (1.396kA)
- 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
MXLPLAD36KP15A FAQ
1.How can I place an order for MXLPLAD36KP15A through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLPLAD36KP15A 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 MXLPLAD36KP15A reliable?
The price and inventory of MXLPLAD36KP15A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLPLAD36KP15A is usually 5 days.
3.What payment methods are accepted for MXLPLAD36KP15A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLPLAD36KP15A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLPLAD36KP15A?
MXLPLAD36KP15A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLPLAD36KP15A 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 MXLPLAD36KP15A?
For technical support, including MXLPLAD36KP15A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLPLAD36KP15A requirements.
6.How does Aetrix verify that MXLPLAD36KP15A is sourced from the original manufacturer or authorized distributors?
All MXLPLAD36KP15A 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 MXLPLAD36KP15A meets industry standards.
7.What is the process for return or replacement of MXLPLAD36KP15A?
All MXLPLAD36KP15A units undergo pre-shipment inspection (PSI). If there is an issue with MXLPLAD36KP15A, 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 MXLPLAD36KP15A part is unused and in its original packaging.
Return procedure for MXLPLAD36KP15A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLPLAD36KP15A Tags
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