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Microchip Technology MAPLAD36KP17AE3
- Part No.:
- MAPLAD36KP17AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP17AE3.pdf
- Description:
- TVS DIODE 17VWM 28.8VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:6,007
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Product details
Overview
MAPLAD36KP17AE3 from Microsemi is a unidirectional 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 17 V reverse standoff voltage (VWM), clamps to ≤28.8 V at 1250 A peak pulse current (IPP), and operates across –55°C to +150°C junction temperature.
For engineers reviewing the MAPLAD36KP17AE3 datasheet, MAPLAD36KP17AE3 pinout, MAPLAD36KP17AE3 application, or MAPLAD36KP17AE3 equivalent, key selection criteria include its DO-160F Waveform 4 Level 4/5 compliance, IEC 61000-4-5 Class 1–5 secondary lightning protection capability, low thermal resistance (RθJC = 1.0 °C/W), and RoHS-compliant e3 plating.
Technical Context
This TVS diode uses an avalanche breakdown mechanism to provide fast-response overvoltage clamping with <5 ns response time for bidirectional variants and <100 ps for unidirectional types like MAPLAD36KP17AE3. Its metal-base package enables direct thermal coupling to PCB copper or heatsinks, supporting high-reliability operation under multi-stroke lightning transients per RTCA DO-160 Section 22.
The device meets AEC-Q101 stress testing requirements and supports MIL-PRF-19500 upscreening options. Electrical performance is specified at 25°C with derating applied above 25°C ambient, and standby leakage (ID) is controlled via 3σ lot norm screening.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - sustains aircraft lightning-induced surges without failure |
| Reverse Standoff Voltage (VWM) | 17 V - maximum continuous operating voltage before clamping initiates |
| Breakdown Voltage (V(BR)) | 18.9–20.9 V @ 5 mA - ensures reliable turn-on margin above VWM |
| Clamping Voltage (VC) | ≤28.8 V @ 1250 A - limits downstream circuit voltage during worst-case surge |
| Peak Pulse Current (IPP) | 1250 A @ 10/1000 μs - quantifies maximum surge current handled at rated PPP |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to PCB or heatsink for repeated surge events |
| Operating Temperature Range | –55°C to +150°C - qualified for engine bay, avionics, and industrial environments |
Pinout & Package
MAPLAD36KP17AE3 uses a PLAD (Plastic Leaded Anode Down) surface-mount package with a metal base acting as the cathode terminal. The package measures 12.32 mm × 10.54 mm × 5.08 mm (L × W × H) and features tin-plated terminals compliant with MIL-STD-2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal Base (Bottom) | Cathode | Primary current return path and thermal interface - must be soldered to large copper pour or heatsink |
| Top Lead (Anode) | Anode | Signal input side - connects to protected line; polarity marking on body confirms orientation |
Key Features
| Feature | Design Value |
|---|---|
| DO-160F Waveform 4 Compliance | Level 4/5 protection (6.4/69 μs) - validated for pin-injection immunity in aircraft electronics |
| IEC 61000-4-5 Lightning Protection | Class 1–5 support with 2 Ω, 12 Ω, and 42 Ω source impedances - covers short- and long-distance coupling scenarios |
| Low Profile SMT Construction | Height ≤5.33 mm - enables compact placement near connectors or entry points without height clearance issues |
| RoHS Compliant Plating (e3) | Matte-tin annealed finish - ensures lead-free assembly compatibility and solder joint reliability |
| Moisture Sensitivity Level | MSL Level 1 - no dry pack or baking required prior to reflow, reducing manufacturing overhead |
Applications
| Aerospace Avionics Power Input | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Protecting 28 V DC power inputs of flight management computers against lightning-induced transients per DO-160 Section 22. IC Role / Device Role / Timing Role: Primary clamping element placed directly at board edge connector, shunting surge energy to chassis ground. Use Value: Enables single-device compliance with Level 5 Waveform 4 pin injection and Class 5 lightning standards without external series impedance. | Use Scenario: Safeguarding 12 V supply rails in diesel ECU modules exposed to load dump events up to 120 V. IC Role / Device Role / Timing Role: High-power TVS placed upstream of DC-DC converters and microcontrollers to clamp transients below 28.8 V. Use Value: Withstands 1250 A surges while maintaining clamping voltage low enough to protect 3.3 V/5 V logic interfaces downstream. |
| Railway Signaling Interface | Industrial Motor Drive DC Bus |
Use Scenario: Securing RS-485 communication lines in track-side signaling units subjected to induced surges from nearby traction currents. IC Role / Device Role / Timing Role: Bidirectional protection variant used across differential pairs; MAPLAD36KP17AE3 serves as unidirectional reference for rail voltage monitoring circuits. Use Value: Provides sub-100 ps response to fast-rising transients while supporting repeated strikes per EN 50121-4. | Use Scenario: Protecting gate drivers and current sensors on 400 V DC bus of variable frequency drives during switching-induced voltage spikes. IC Role / Device Role / Timing Role: Mounted on bus bar near IGBT module to clamp overshoots before they propagate into control circuitry. Use Value: 1.0 °C/W RθJC allows sustained operation under 0.05% duty cycle surges without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ17A | 600 W PPP rating, SMB package, RθJC ≈ 35 °C/W | Limited to single-stroke surges; not qualified for DO-160 or IEC 61000-4-5 Class 5 | Select when cost-sensitive, low-energy consumer applications require basic ESD/EFT protection only. |
| SMCJ17A | 1500 W PPP rating, SMC package, RθJC ≈ 12 °C/W | Supports IEC 61000-4-5 Class 3 but lacks DO-160F Waveform 4 validation and multi-stroke endurance | Choose for industrial controls needing higher energy handling than SMBJ but without aerospace certification requirements. |
Compared with SMBJ17A and SMCJ17A, MAPLAD36KP17AE3 delivers 24× and 24× higher peak pulse power respectively, with certified multi-stroke lightning resilience, lower thermal resistance for PCB-level heat dissipation, and full DO-160F/IEC 61000-4-5 compliance - making it the only option for certified aerospace and high-reliability automotive power protection.
Availability
MAPLAD36KP17AE3 is available at Aetrix Electronics and suitable for aerospace avionics, automotive ECU power protection, and industrial motor drive DC bus applications requiring stable component supply and long-term lifecycle assurance.
Supply support for MAPLAD36KP17AE3 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 semiconductor solutions for aerospace, defense, and industrial markets, with expertise in radiation-hardened ICs, timing devices, and power protection components.
MAPLAD36KP17AE3 belongs to Microsemi's PLAD-series high-power TVS family, engineered specifically for certified lightning and load-dump protection in safety-critical platforms where multi-stroke endurance and thermal robustness are mandatory.
FAQ
What is the clamping voltage of MAPLAD36KP17AE3 at its rated peak pulse current?
MAPLAD36KP17AE3 has a maximum clamping voltage (VC) of 28.8 V at 1250 A peak pulse current (IPP) under 10/1000 μs waveform conditions. This value is guaranteed across the full operating temperature range and ensures downstream 3.3 V and 5 V logic circuits remain within safe voltage margins during surge events. The clamping performance is validated per Figure 3 in the RF01216 datasheet.
Is MAPLAD36KP17AE3 qualified for aerospace applications per DO-160?
Yes, MAPLAD36KP17AE3 is explicitly qualified for RTCA DO-160F Section 22 lightning-induced transient testing, including Waveform 4 (6.4/69 μs) Level 4 and Level 5 pin injection. Its 36 kW rating, low thermal resistance, and multi-stroke capability make it suitable for flight-critical avionics power inputs. Certification data is documented in Microsemi Application Note AN-132.
Does MAPLAD36KP17AE3 require special PCB layout considerations?
Yes - MAPLAD36KP17AE3 requires a dedicated thermal pad on the PCB matching the metal base footprint (12.32 mm × 10.54 mm) with ≥2 oz copper and multiple thermal vias to internal ground planes. The anode lead must be kept short (<5 mm) to minimize inductance, and the device must be placed within 10 mm of the protected connector. Pad layout dimensions are specified in RF01216 Rev B, page 6.
What is the meaning of the 'E3' suffix in MAPLAD36KP17AE3?
The 'E3' suffix in MAPLAD36KP17AE3 indicates RoHS-compliant matte-tin plating per JEDEC J-STD-609A, replacing traditional tin-lead finishes. This ensures compatibility with lead-free reflow profiles (peak 260°C for 10 s), eliminates hazardous substances, and maintains solderability per MIL-STD-750 Method 2026. Non-RoHS versions omit the 'E3' suffix.
How does MAPLAD36KP17AE3 compare to standard SMCJ-series TVS diodes in surge handling?
MAPLAD36KP17AE3 delivers 36,000 W peak pulse power - 24× higher than the 1500 W rating of SMCJ17A. Its 1.0 °C/W junction-to-case thermal resistance enables effective heat dissipation during repetitive surges, whereas SMCJ17A's ~12 °C/W limits multi-stroke capability. MAPLAD36KP17AE3 also includes DO-160F and IEC 61000-4-5 Class 5 validation absent in standard SMCJ parts.
MAPLAD36KP17AE3 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):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 28.8V
- Current - Peak Pulse (10/1000µs):
- 1250A (1.25kA)
- 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
MAPLAD36KP17AE3 FAQ
1.How can I place an order for MAPLAD36KP17AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP17AE3 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 MAPLAD36KP17AE3 reliable?
The price and inventory of MAPLAD36KP17AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP17AE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP17AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP17AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP17AE3?
MAPLAD36KP17AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP17AE3 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 MAPLAD36KP17AE3?
For technical support, including MAPLAD36KP17AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP17AE3 requirements.
6.How does Aetrix verify that MAPLAD36KP17AE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP17AE3 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 MAPLAD36KP17AE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP17AE3?
All MAPLAD36KP17AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP17AE3, 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 MAPLAD36KP17AE3 part is unused and in its original packaging.
Return procedure for MAPLAD36KP17AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP17AE3 Tags
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