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Microchip Technology MAPLAD36KP90CAE3
- Part No.:
- MAPLAD36KP90CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP90CAE3.pdf
- Description:
- TVS DIODE 90VWM 146VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:4,208
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Product details
Overview
MAPLAD36KP90CAE3 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 90 V reverse standoff voltage (VWM), clamps to ≤146 V at 247 A peak pulse current (IPP), and operates across –55°C to +150°C junction temperature. It is qualified to AEC-Q101 and meets RTCA DO-160F Level 4 pin injection for Waveform 4.
For engineers reviewing the MAPLAD36KP90CAE3 datasheet, MAPLAD36KP90CAE3 pinout, MAPLAD36KP90CAE3 application, or MAPLAD36KP90CAE3 equivalent, key selection criteria include its bidirectional polarity, 90 V VWM rating, 146 V max clamping voltage at 247 A, low 1.0 °C/W junction-to-case thermal resistance, and compliance with IEC 61000-4-5 (Class 1–5, 2–42 Ω source impedance) and RTCA DO-160F lightning standards.
Technical Context
This TVS diode uses an avalanche breakdown mechanism to clamp fast-rising transients, with bidirectional symmetry enabling protection against both positive and negative polarity surges without external polarity management. Its void-free UL94V-0 epoxy package and metal-base thermal path support high-reliability mounting on FR4 PCBs with recommended pad layout.
It is characterized for multi-stroke lightning immunity per RTCA DO-160 Section 22 and provides secondary lightning protection per IEC 61000-4-5 under 2 Ω, 12 Ω, and 42 Ω source impedances - with validated performance up to Class 5 at 90 V standoff in short-distance configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - enables single-device suppression of severe lightning-induced transients in avionics and vehicle ECUs. |
| Reverse Standoff Voltage (VWM) | 90 V - sets maximum continuous operating voltage before clamping initiates; matches 72 V nominal aircraft bus or 80 V automotive load-dump systems. |
| Max Clamping Voltage (VC) | 146 V @ IPP = 247 A - defines worst-case voltage seen by protected circuit during full-rated surge, ensuring downstream IC survival. |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - allows efficient heat transfer to heatsink or copper pour, critical for repeated surge duty cycles without thermal runaway. |
| Operating Temperature Range | –55°C to +150°C - supports deployment in engine bays, flight control surfaces, and other extreme-environment locations. |
| Surge Standards Compliance | RTCA DO-160F Waveform 4 Level 4 & IEC 61000-4-5 Class 1–5 - certifies suitability for certified aircraft and industrial-grade equipment without additional external protection layers. |
Pinout & Package
MAPLAD36KP90CAE3 is housed in a surface-mount PLAD package with a metal base acting as the cathode terminal for unidirectional variants; for bidirectional devices like MAPLAD36KP90CAE3, both terminals are symmetrical and non-polarized. The package measures 12.32 mm × 10.54 mm × 5.08 mm (L × W × H) with a low-profile profile optimized for thermal conduction through the metal base.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional surge path | Both terminals function identically; no polarity orientation required during placement - simplifies layout and eliminates risk of reverse installation. |
| Metal base (underside) | Thermal conduction plane | Directly interfaces with PCB copper pour or heatsink; primary path for dissipating 36 kW surge energy - requires minimum 11.94 mm × 5.85 mm thermal pad per datasheet layout. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction (CA suffix) | Eliminates need for polarity-aware routing or dual-device solutions - reduces BOM count and PCB area in differential or AC-coupled protection paths. |
| 36,000 W PPP rating @ 10/1000 μs | Single-device coverage for DO-160 Section 22 multi-stroke lightning - avoids cascaded TVS designs and associated timing skew or coordination complexity. |
| 1.0 °C/W RθJC | Enables >90% of surge energy to be conducted away from junction within microseconds - critical for surviving repeated transients without cumulative thermal degradation. |
| AEC-Q101 qualified & MIL-PRF-19500 upscreening option | Validates reliability for automotive powertrain and aerospace subsystems where field failure carries safety-critical consequences. |
| RoHS-compliant e3 plating | Tin-lead alternative eliminated; matte-tin terminations ensure compatibility with lead-free reflow profiles while maintaining solderability per MIL-STD-750 Method 2026. |
Applications
| Aircraft Avionics Power Input | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Protection of 28 V DC power inputs in flight management computers subjected to DO-160F Section 22 lightning-induced surges. IC Role / Device Role / Timing Role: Primary transient shunt device placed directly at connector entry point to divert >30 kA surge currents before reaching DC/DC converters and microcontrollers. Use Value: Achieves Level 4 pin injection immunity per Waveform 4 (6.4/69 μs) without derating - maintains system uptime during ground-air transition and thunderstorm operations. |
Use Scenario: Load dump and jump-start surge suppression on 12 V/24 V power rails feeding engine control modules in commercial trucks. IC Role / Device Role / Timing Role: Fast-clamping TVS placed upstream of LDO regulators and CAN transceivers to prevent latch-up or gate oxide damage during ISO 7637-2 Test 5a/b events. Use Value: Clamps to 146 V within <5 ns - limits overvoltage stress on 16 V-rated input capacitors and ensures sustained operation after repeated 120 V, 400 ms load dumps. |
| Railway Signaling Interface | Industrial Motor Drive DC Bus |
Use Scenario: Secondary surge protection on 72 V signaling lines connecting trackside sensors to centralized interlocking systems exposed to induced lightning. IC Role / Device Role / Timing Role: Bidirectional clamping element bridging differential pair or shielded twisted pair to earth ground, absorbing common-mode transients. Use Value: Meets IEC 61000-4-5 Class 4 with 12 Ω source impedance - guarantees interoperability with EN 50121-4 compliant infrastructure without external spark gaps. |
Use Scenario: DC link overvoltage suppression in 400 V industrial inverters subject to regenerative braking spikes and switching transients. IC Role / Device Role / Timing Role: Parallel-connected TVS across main DC bus capacitors to clamp voltage excursions above 450 V and prevent IGBT desaturation faults. Use Value: 36 kW rating sustains ≥5000 surge events at 100 A (10/1000 μs) with <0.05% duty cycle - extends maintenance intervals in continuous-duty pump/fan drives. |
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 SP3050-090 | 90 V VWM, 150 V VC @ 200 A, 30 kW PPP, SMC package (RθJC = 2.5 °C/W) | Lower power rating and higher thermal resistance limit use to single-event or low-duty-cycle industrial controls. | Select when cost sensitivity outweighs multi-stroke lightning requirements and PCB space permits larger footprint. |
| Vishay SMAJ90CA | 90 V VWM, 150 V VC @ 171 A, 400 W PPP, SMA package (RθJA = 40 °C/W) | Orders-of-magnitude lower surge capacity - suitable only for ESD/EFT, not lightning or load dump. | Choose only for board-level ESD protection on low-power signal lines; not a functional substitute for MAPLAD36KP90CAE3's 36 kW capability. |
Compared with SP3050-090 and SMAJ90CA, MAPLAD36KP90CAE3 delivers 12× higher peak pulse power and 2.5× lower junction-to-case thermal resistance - making it the sole option among the three qualified for RTCA DO-160F Section 22 multi-stroke lightning and sustained automotive load dump duty cycles.
Availability
MAPLAD36KP90CAE3 is available at Aetrix Electronics and suitable for aerospace avionics, automotive powertrain electronics, railway signaling interfaces, and industrial motor drive systems requiring stable component supply across extended product lifecycles.
Supply support for MAPLAD36KP90CAE3 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 components for aerospace, defense, and industrial markets.
The MAPLAD36KP90CAE3 belongs to Microsemi's high-power PLAD-series TVS family, engineered specifically for mission-critical surge environments where multi-stroke lightning immunity, thermal robustness, and AEC-Q101/MIL-qualified reliability are mandatory.
FAQ
What is the clamping voltage of MAPLAD36KP90CAE3 at its rated peak pulse current?
The MAPLAD36KP90CAE3 has a maximum clamping voltage (VC) of 146 V at its rated peak pulse current (IPP) of 247 A under 10/1000 μs waveform conditions. This value is measured across the device terminals during full-power surge testing and represents the upper bound of voltage imposed on protected circuitry - critical for ensuring downstream components remain within absolute maximum ratings.
Is MAPLAD36KP90CAE3 RoHS compliant and what does the 'e3' suffix indicate?
Yes, MAPLAD36KP90CAE3 is RoHS compliant, as confirmed by the 'e3' suffix in its part number. This denotes annealed matte-tin plating per J-STD-020B Level 1 moisture sensitivity, eliminating lead content while maintaining solderability and thermal fatigue resistance under lead-free reflow profiles up to 260°C for 10 seconds.
Does MAPLAD36KP90CAE3 require heatsinking and what thermal performance can be expected?
MAPLAD36KP90CAE3 relies on PCB copper pour or external heatsinking via its metal base for thermal management. With a junction-to-case thermal resistance (RθJC) of 1.0 °C/W, it achieves effective heat dissipation when mounted on a minimum 11.94 mm × 5.85 mm thermal pad - enabling >90% of 36 kW surge energy to be conducted away within microseconds and supporting repetitive surge duty cycles.
How does MAPLAD36KP90CAE3 meet RTCA DO-160F lightning requirements?
MAPLAD36KP90CAE3 meets RTCA DO-160F Section 22 multi-stroke lightning standards by delivering 36,000 W peak pulse power at 10/1000 μs and passing Pin Injection tests for Waveform 4 (6.4/69 μs) at Level 4. Its bidirectional symmetry and low clamping latency (<5 ns) ensure consistent protection across both polarities without external circuitry - a requirement for certified aircraft avionics.
Can MAPLAD36KP90CAE3 be used in automotive applications and what qualifications does it hold?
Yes, MAPLAD36KP90CAE3 is qualified to AEC-Q101 for stress testing including HTGB, HTRB, and temperature cycling - validating its suitability for under-hood automotive applications such as engine control units and battery management systems. Its 90 V VWM and 146 V clamping align with 24 V system load dump profiles, and it supports IEC 61000-4-5 Class 4/5 compliance in vehicle architectures.
MAPLAD36KP90CAE3 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):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 146V
- Current - Peak Pulse (10/1000µs):
- 247A
- 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
MAPLAD36KP90CAE3 FAQ
1.How can I place an order for MAPLAD36KP90CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP90CAE3 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 MAPLAD36KP90CAE3 reliable?
The price and inventory of MAPLAD36KP90CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP90CAE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP90CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP90CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP90CAE3?
MAPLAD36KP90CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP90CAE3 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 MAPLAD36KP90CAE3?
For technical support, including MAPLAD36KP90CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP90CAE3 requirements.
6.How does Aetrix verify that MAPLAD36KP90CAE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP90CAE3 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 MAPLAD36KP90CAE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP90CAE3?
All MAPLAD36KP90CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP90CAE3, 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 MAPLAD36KP90CAE3 part is unused and in its original packaging.
Return procedure for MAPLAD36KP90CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP90CAE3 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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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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