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Microchip Technology MAPLAD36KP14CAE3
- Part No.:
- MAPLAD36KP14CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP14CAE3.pdf
- Description:
- TVS DIODE 14VWM 24VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:7,931
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Product details
Overview
MAPLAD36KP14CAE3 from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace and automotive systems. It delivers 36,000 W peak pulse power at 10/1000 μs, features a 14 V reverse standoff voltage (VWM), clamps to ≤24.0 V at 3000 A peak impulse current (IPP), and operates across –55°C to +150°C junction temperature.
For engineers reviewing the MAPLAD36KP14CAE3 datasheet, MAPLAD36KP14CAE3 pinout, MAPLAD36KP14CAE3 application, or MAPLAD36KP14CAE3 equivalent, this device is selected for secondary lightning protection per IEC 61000-4-5 (42 Ω, 12 Ω, 2 Ω source impedances), RTCA DO-160F Waveform 4 & 5A pin injection, and ESD/EFT compliance per IEC 61000-4-2/4-4.
Technical Context
This TVS diode uses silicon avalanche technology with low thermal resistance (RθJC = 1.0 °C/W) and a void-free UL94V-0 epoxy package optimized for high-reliability mounting on FR4 PCBs. Its bidirectional construction enables symmetrical clamping for AC-coupled or floating signal lines without polarity constraints.
It meets AEC-Q101 stress testing requirements and supports MIL-PRF-19500 upscreening options (M/MA/MXL levels). Standby current (ID) is 3000 μA max at VWM, and clamping response time is <5 ns - critical for fast transients like ESD and lightning-induced RFI.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - sustains multi-stroke lightning surges without degradation |
| Reverse Standoff Voltage (VWM) | 14 V - maximum continuous operating voltage before clamping initiates |
| Breakdown Voltage (V(BR)) | 15.6–17.2 V @ 5 mA - defines precise avalanche onset threshold |
| Clamping Voltage (VC) | ≤24.0 V @ 3000 A IPP - limits downstream circuit voltage during worst-case surge |
| Peak Impulse Current (IPP) | 3000 A @ 10/1000 μs - quantifies maximum single-event surge current handling |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to heatsink or copper pour |
| Moisture Sensitivity Level | Level 1 (IPC/JEDEC J-STD-020B) - no dry pack required prior to reflow |
Pinout & Package
MAPLAD36KP14CAE3 uses a surface-mount PLAD package with two terminals: anode and cathode. The metal base serves as the cathode for unidirectional variants; for bidirectional devices like MAPLAD36KP14CAE3, both terminals are symmetrical and non-polarized. Package dimensions: 12.32 × 10.54 × 5.08 mm (L × W × H), with recommended pad layout per RF01216 Rev B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge current entry point (bidirectional) | Accepts transient energy from either polarity; no polarity marking required |
| Cathode | Surge current return path (bidirectional) | Completes low-inductance path to ground or reference; metal base provides thermal conduction |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC signals, differential buses, or floating nodes without orientation constraints |
| RTCA DO-160F Waveform 4 & 5A compliance | Validated for aircraft pin-injection immunity up to Level 5 (Waveform 4: 14–300 V range; Waveform 5A: 14–38 V range) |
| IEC 61000-4-5 secondary lightning protection | Rated for Class 1–5 per 42 Ω, 12 Ω, and 2 Ω source impedances - covers short/long-distance aircraft wiring scenarios |
| AEC-Q101 qualified | Passes automotive-grade reliability stress tests including HTGB, HTRB, and temperature cycling |
| RoHS-compliant (e3 plating) | Tin-lead-free matte-tin terminal plating compatible with lead-free reflow profiles (260°C/10 s) |
Applications
| Aircraft Avionics Power Distribution | Automotive Load Dump Protection |
|---|---|
|
Use Scenario: Protecting 28 V DC power inputs in flight control computers and sensor interfaces against induced lightning transients per RTCA DO-160 Section 22. IC Role / Device Role / Timing Role: Primary secondary surge suppression device placed at board-level input filter stage. Use Value: Clamps 3000 A surges to ≤24.0 V within <5 ns, preventing latch-up or damage to downstream DC-DC converters and FPGAs. |
Use Scenario: Safeguarding engine control unit (ECU) CAN transceivers and microcontroller I/O during alternator load dump events (ISO 7637-2 Pulse 5a/b). IC Role / Device Role / Timing Role: High-power TVS placed directly at connector interface to shunt surge energy before filtering stages. Use Value: Absorbs 36 kW pulses without failure, maintaining system uptime where conventional 1.5 kW TVS diodes would degrade or short. |
| Industrial Motor Drive Control Inputs | Railway Signaling Interface Protection |
|
Use Scenario: Shielding isolated analog inputs (e.g., 4–20 mA loops) in variable frequency drives from switching transients generated by IGBT commutation. IC Role / Device Role / Timing Role: Bidirectional transient clamp on field-side signal lines interfacing with PLC analog modules. Use Value: Symmetrical clamping prevents signal inversion or offset during fast dV/dt noise, preserving measurement accuracy under EMI stress. |
Use Scenario: Protecting Ethernet PHY and RS-485 communication ports in trackside signaling units exposed to lightning-induced ground potential rise. IC Role / Device Role / Timing Role: Board-level surge protector compliant with EN 50121-4 for railway electromagnetic compatibility. Use Value: Meets IEC 61000-4-5 Class 4 (2 Ω source) with 14–130 V VWM range - ensures interoperability across legacy and modern signaling voltages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ14CA | Lower PPP rating (400 W), smaller SMC package, 1.5x higher clamping voltage (23.2 V @ 17.3 A) | Suitable only for low-energy ESD/EFT; not rated for DO-160 lightning or load dump | Select when cost and board space constrain design, and surge energy remains below 500 W |
| Vishay V26MLA0603NH | MLV-based (not avalanche diode); 26 V VWM, 6 kA max IPP, 120 J energy rating, slower response (>100 ns) | Better for repetitive low-level transients; unsuitable for fast lightning waveforms requiring <5 ns response | Prefer for industrial AC line filtering where waveform shape favors voltage-dependent resistive clamping |
Compared with SMAJ14CA and V26MLA0603NH, MAPLAD36KP14CAE3 delivers 90× higher peak power, sub-5 ns response, and certified DO-160/IEC 61000-4-5 performance - making it irreplaceable in aerospace primary surge zones and automotive high-power load dump paths.
Availability
MAPLAD36KP14CAE3 is available at Aetrix Electronics and suitable for aircraft avionics, automotive powertrain electronics, and industrial motor drive systems requiring stable component supply with long-term lifecycle assurance.
Supply support for MAPLAD36KP14CAE3 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 (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 MAPLAD36KP14CAE3 belongs to Microsemi's high-power PLAD TVS family, engineered specifically for mission-critical surge protection in environments demanding DO-160, AEC-Q101, and IEC 61000-4-5 compliance.
FAQ
What is the clamping voltage of MAPLAD36KP14CAE3 at its rated peak impulse current?
The MAPLAD36KP14CAE3 has a maximum clamping voltage (VC) of 24.0 V at 3000 A peak impulse current (IPP) under 10/1000 μs waveform conditions. This value is guaranteed across temperature and ensures downstream components see no more than 24.0 V during worst-case surge events, preserving logic-level integrity in 28 V systems.
Is MAPLAD36KP14CAE3 RoHS compliant and what does the 'e3' suffix indicate?
Yes, MAPLAD36KP14CAE3 is RoHS compliant. The 'e3' suffix explicitly denotes annealed matte-tin terminal plating meeting JEDEC/IPC standards for lead-free soldering - verified per J-STD-020B Level 1 moisture sensitivity, with no dry pack required before reflow.
How does MAPLAD36KP14CAE3 differ from unidirectional versions like MPLAD36KP14A?
MAPLAD36KP14CAE3 is bidirectional (CA suffix), providing symmetrical clamping for AC or floating circuits, whereas MPLAD36KP14A is unidirectional with cathode marked on the metal base. The bidirectional version eliminates polarity installation errors and supports differential bus protection - critical in avionics data links and isolated sensor interfaces.
Can MAPLAD36KP14CAE3 be used for RTCA DO-160F lightning testing?
Yes, MAPLAD36KP14CAE3 is validated for RTCA DO-160F Section 22 lightning-induced transient testing, including Waveform 4 (6.4/69 μs) Level 4/5 and Waveform 5A (40/120 μs) Level 4/5. Its 36 kW rating and <5 ns response meet the stringent multi-stroke requirements for aircraft equipment certification.
What thermal management is required for sustained operation of MAPLAD36KP14CAE3?
MAPLAD36KP14CAE3 requires direct thermal coupling to a heatsink or large copper pour due to its 1.0 °C/W junction-to-case thermal resistance. For repeated surges, steady-state power dissipation is limited to 2.5 W at 25°C ambient; derating applies above 100°C case temperature per Figure 3 in RF01216 Rev B.
MAPLAD36KP14CAE3 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):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 24V
- Current - Peak Pulse (10/1000µs):
- 1500A (1.5kA)
- 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
MAPLAD36KP14CAE3 FAQ
1.How can I place an order for MAPLAD36KP14CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP14CAE3 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 MAPLAD36KP14CAE3 reliable?
The price and inventory of MAPLAD36KP14CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP14CAE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP14CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP14CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP14CAE3?
MAPLAD36KP14CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP14CAE3 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 MAPLAD36KP14CAE3?
For technical support, including MAPLAD36KP14CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP14CAE3 requirements.
6.How does Aetrix verify that MAPLAD36KP14CAE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP14CAE3 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 MAPLAD36KP14CAE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP14CAE3?
All MAPLAD36KP14CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP14CAE3, 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 MAPLAD36KP14CAE3 part is unused and in its original packaging.
Return procedure for MAPLAD36KP14CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP14CAE3 Tags
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