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Microchip Technology MAPLAD36KP54AE3
- Part No.:
- MAPLAD36KP54AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP54AE3.pdf
- Description:
- TVS DIODE 54VWM 87.1VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:4,617
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Product details
Overview
MAPLAD36KP54AE3 from Microsemi is a unidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace and automotive systems. It delivers 36,000 W peak pulse power at 10/1000 μs, clamps at ≤87.1 V under 500 A forward surge, and features a 54 V reverse standoff voltage (VWM), 60.0–66.3 V breakdown voltage (V(BR)), and 1.0 °C/W junction-to-case thermal resistance. It is widely deployed in aircraft lightning protection per RTCA DO-160 Section 22.
For engineers reviewing the MAPLAD36KP54AE3 datasheet, MAPLAD36KP54AE3 pinout, MAPLAD36KP54AE3 application, or MAPLAD36KP54AE3 equivalent, this page provides verified electrical parameters, IEC 61000-4-5 Class 4/5 compliance data, RoHS-compliant e3 plating details, thermal derating curves, and validated alternatives for secondary lightning and load-dump protection circuits.
Technical Context
This TVS diode operates as a clamping device in parallel with sensitive circuitry to divert high-current transients-such as lightning-induced surges or automotive load dumps-away from downstream components. Its low RθJC (1.0 °C/W) enables effective heat transfer to a heatsink, while its <100 ps response time ensures sub-nanosecond turn-on during fast-rising threats like ESD and pin injection waveforms (RTCA DO-160F Waveform 4/5A).
It meets AEC-Q101 stress testing requirements and supports MIL-PRF-19500 upscreening options. The device's unidirectional polarity places the cathode on the metal base (package bottom), requiring correct PCB pad layout per Microsemi's recommended footprint to maintain thermal performance and mechanical reliability under repeated multi-stroke events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - sustains full-rated surge energy without failure in single-event or low-duty-cycle (<0.05%) applications |
| Reverse Standoff Voltage (VWM) | 54 V - maximum continuous DC or peak AC voltage the device blocks before entering avalanche conduction |
| Breakdown Voltage (V(BR)) | 60.0–66.3 V @ 5 mA - defines the onset of controlled avalanche clamping; tight tolerance ensures predictable turn-on margin |
| Clamping Voltage (VC) | ≤87.1 V @ 500 A - maximum voltage seen by protected circuit during worst-case surge; critical for IC-level overvoltage immunity |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables direct mounting to heatsink for stable operation under repetitive surges; reduces thermal runaway risk |
| Moisture Sensitivity Level | Level 1 per J-STD-020B - no dry pack or baking required prior to reflow, simplifying SMT assembly logistics |
| RoHS Compliance | e3 marking - matte-tin plating compliant with EU RoHS Directive 2011/65/EU, eliminating lead and hazardous substances |
Pinout & Package
The MAPLAD36KP54AE3 uses a thermally optimized surface-mount PLAD package with a metal base acting as the cathode terminal. The anode is accessible via the top-side metallization. This two-terminal construction requires no biasing and supports high-current surge paths with minimal parasitic inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal Base (Bottom) | Cathode | Primary heat path and current return node; must be soldered to large copper thermal pad per Microsemi layout guidelines |
| Top Metallization | Anode | Surge current entry point; connects to protected line (e.g., 28 V aircraft bus or battery feed); low-inductance routing recommended |
Key Features
| Feature | Design Value |
|---|---|
| RTCA DO-160F Waveform 4/5A compliance | Rated for Level 4 (6.4/69 μs) and Level 5 (40/120 μs) pin injection protection - validated for avionics signal-line hardening |
| IEC 61000-4-5 secondary lightning protection | Class 4/5 certified with 42 Ω, 12 Ω, and 2 Ω source impedances - covers long/short-distance coupling scenarios in airframe wiring |
| AEC-Q101 qualification | Passed stress tests including HTGB, HTRB, and temperature cycling - suitable for automotive under-hood and powertrain modules |
| Low-profile void-free epoxy body | UL94V-0 rated, 0.490" × 0.205" footprint - fits space-constrained avionics enclosures while maintaining creepage/clearance |
| Traceable wafer and assembly lots | Full lot traceability per MIL-PRF-19500 - enables root-cause analysis and reliability monitoring in safety-critical programs |
Applications
| Aircraft Lightning Protection | Automotive Load Dump Suppression |
|---|---|
Use Scenario: Protecting flight control sensors and communication interfaces from induced surges during in-flight lightning strikes. IC Role / Device Role / Timing Role: Primary clamping element placed at equipment boundary to shunt >30 kA transients before they reach ASICs or FPGAs. Use Value: Meets RTCA DO-160 Section 22 multi-stroke requirements with <100 ps response, ensuring system-level DO-160 certification without external crowbar circuits. | Use Scenario: Safeguarding engine control units (ECUs) and infotainment head units during alternator load dump events (ISO 7637-2 Pulse 5a/b). IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing up to 36 kW surge energy while limiting bus voltage to <87.1 V. Use Value: Prevents latch-up and gate oxide damage in 5 V/3.3 V logic rails by clamping within 10% of automotive supply rail limits. |
| Industrial Motor Drive Inputs | Railway Signaling Interfaces |
Use Scenario: Shielding variable-frequency drive (VFD) control inputs from switching transients generated by IGBT commutation. IC Role / Device Role / Timing Role: Fast-response transient suppressor across analog input terminals (e.g., 4–20 mA loops) to prevent false triggering. Use Value: Sub-100 ns turn-on and 1.0 °C/W thermal resistance enable reliable operation in high-repetition industrial environments without derating. | Use Scenario: Hardening trackside signaling electronics against induced surges from nearby traction currents and lightning coupling. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT) front-end, handling residual energy and fast-rising edges. Use Value: IEC 61000-4-5 Class 5 rating with 42 Ω source impedance ensures interoperability with EN 50121-4-compliant railway EMC architectures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ54A | Lower PPP (600 W), smaller SMB package, higher RθJA (50 °C/W), no AEC-Q101 or DO-160 qualification | Consumer-grade power supplies and non-safety-critical industrial controls only | Select when cost and board space outweigh reliability and certification needs |
| SMCJ54A | Higher PPP (1500 W), SMC package, RθJA = 25 °C/W, qualified to AEC-Q101 but not DO-160 or MIL-PRF-19500 | Automotive body electronics and mid-tier industrial PLCs where aviation standards are not mandated | Select for automotive applications requiring AEC-Q101 but lacking avionics certification scope |
Compared with SMBJ54A and SMCJ54A, MAPLAD36KP54AE3 delivers 24× and 24× higher peak pulse power respectively, supports full DO-160F Level 5 validation, and offers 1.0 °C/W thermal resistance-enabling sustained multi-stroke operation in mission-critical aerospace platforms where lower-power alternatives would fail catastrophically.
Availability
MAPLAD36KP54AE3 is available at Aetrix Electronics and suitable for aircraft avionics, automotive powertrain modules, industrial motor drives, and railway signaling systems requiring stable component supply across extended product lifecycles.
Supply support for MAPLAD36KP54AE3 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 MAPLAD36KP54AE3 belongs to Microsemi's high-power PLAD-series TVS family, engineered specifically for multi-stroke lightning and load-dump protection in safety-critical platforms where failure is not an option.
FAQ
What is the clamping voltage of MAPLAD36KP54AE3 at its rated peak pulse current?
The MAPLAD36KP54AE3 has a maximum clamping voltage (VC) of 87.1 V at 500 A peak impulse 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 imposed on protected circuitry during worst-case surge events. The clamping performance is guaranteed across the full operating temperature range and forms the basis for system-level overvoltage design margins in MAPLAD36KP54AE3 applications.
Is MAPLAD36KP54AE3 qualified to AEC-Q101 and what does that mean for automotive use?
Yes, MAPLAD36KP54AE3 is tested in accordance with AEC-Q101 requirements, covering stress tests such as high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling. This qualification confirms its suitability for automotive under-hood and powertrain applications subject to harsh thermal and vibration environments. MAPLAD36KP54AE3 thus supports ISO 7637-2 Pulse 5a/b load dump protection in ECUs where reliability and long-term stability are mandatory.
How does the PLAD package of MAPLAD36KP54AE3 improve thermal performance compared to standard SMC or SMB packages?
The PLAD package of MAPLAD36KP54AE3 features a metal base that serves as both the cathode terminal and primary thermal path, achieving a junction-to-case thermal resistance of just 1.0 °C/W. In contrast, standard SMC packages typically exhibit RθJC ≥ 3.0 °C/W and SMB packages ≥ 10 °C/W. This 3×–10× improvement allows MAPLAD36KP54AE3 to dissipate surge energy more efficiently, enabling multi-stroke capability and reducing thermal stress on adjacent components during repetitive transients.
Does MAPLAD36KP54AE3 meet RTCA DO-160F lightning protection requirements, and which waveforms are covered?
Yes, MAPLAD36KP54AE3 is validated for RTCA DO-160F Section 22 lightning-induced transient protection. It meets Level 4 and Level 5 requirements for Waveform 4 (6.4/69 μs) and Waveform 5A (40/120 μs) pin injection testing at 25°C. These certifications confirm its ability to protect avionics data buses and sensor interfaces from fast-rising, high-energy transients typical of indirect lightning coupling-making MAPLAD36KP54AE3 a key enabler of DO-160 compliance in flight-critical systems.
What is the significance of the 'E3' suffix in MAPLAD36KP54AE3?
The 'E3' suffix in MAPLAD36KP54AE3 indicates RoHS-compliant matte-tin plating on all terminations, conforming to EU Directive 2011/65/EU. This eliminates lead, cadmium, mercury, hexavalent chromium, PBB, and PBDE substances. The e3 finish ensures compatibility with modern lead-free reflow profiles (up to 260°C for 10 seconds), maintains solderability per MIL-STD-750 Method 2026, and supports environmental compliance in global aerospace and automotive supply chains without compromising surge robustness.
MAPLAD36KP54AE3 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):
- 54V
- Voltage - Breakdown (Min):
- 60V
- Voltage - Clamping (Max) @ Ipp:
- 87.1V
- Current - Peak Pulse (10/1000µs):
- 414A
- 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
MAPLAD36KP54AE3 FAQ
1.How can I place an order for MAPLAD36KP54AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP54AE3 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 MAPLAD36KP54AE3 reliable?
The price and inventory of MAPLAD36KP54AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP54AE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP54AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP54AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP54AE3?
MAPLAD36KP54AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP54AE3 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 MAPLAD36KP54AE3?
For technical support, including MAPLAD36KP54AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP54AE3 requirements.
6.How does Aetrix verify that MAPLAD36KP54AE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP54AE3 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 MAPLAD36KP54AE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP54AE3?
All MAPLAD36KP54AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP54AE3, 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 MAPLAD36KP54AE3 part is unused and in its original packaging.
Return procedure for MAPLAD36KP54AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP54AE3 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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Diodes Incorporated
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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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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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