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Microchip Technology MAPLAD36KP220AE3
- Part No.:
- MAPLAD36KP220AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP220AE3.pdf
- Description:
- TVS DIODE 220VWM 356VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:2,926
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Product details
Overview
MAPLAD36KP220AE3 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, clamps transients to ≤356 V at 990 A, and features a 220 V reverse standoff voltage (VWM), 245–271 V breakdown voltage (V(BR)), and 1.0 °C/W junction-to-case thermal resistance.
For engineers reviewing the MAPLAD36KP220AE3 datasheet, MAPLAD36KP220AE3 pinout, MAPLAD36KP220AE3 application, or MAPLAD36KP220AE3 equivalent, key selection criteria include RTCA DO-160F Waveform 4 Level 4 compliance, IEC 61000-4-5 Class 3 secondary lightning protection with 42 Ω source impedance, and suitability for high-reliability avionics power bus protection where low thermal resistance and traceable lot screening are mandatory.
Technical Context
This TVS diode operates as a clamping device in parallel with sensitive circuitry, activating above its 220 V standoff threshold to divert surge current away from downstream components. Its void-free thermosetting epoxy package and metal-base cathode construction enable direct thermal coupling to PCB copper or heatsinks, supporting sustained multi-stroke surge handling per RTCA DO-160 Section 22.
It meets AEC-Q101 stress testing requirements and supports MIL-PRF-19500 upscreening options (M/MA/MXL levels). The device is RoHS-compliant (e3 plating), moisture-sensitive Level 1 (no dry pack required), and rated for -55°C to +150°C operation with 3σ lot norm screening on standby current (ID).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - enables single-device protection against aircraft lightning-induced surges per DO-160F Waveform 4 Level 4. |
| Reverse Standoff Voltage (VWM) | 220 V - sets maximum continuous operating voltage before clamping activation; matches 200 V nominal DC bus with 10% margin. |
| Clamping Voltage (VC) | 356 V max @ 990 A - limits transient overvoltage seen by protected ICs or power converters during full-rated surge. |
| Breakdown Voltage (V(BR)) | 245–271 V @ 5 mA - defines precise turn-on threshold; tight 10.5% tolerance ensures predictable activation timing. |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - allows efficient heat transfer to PCB copper pour or external heatsink, critical for cumulative heating mitigation in multi-pulse events. |
| Standby Current (ID) | 10 μA max @ 220 V - ensures negligible leakage in high-impedance monitoring circuits or battery-backed systems. |
| Temperature Range | -55°C to +150°C - supports operation in engine bay, avionics bays, and other extreme-environment locations. |
Pinout & Package
The MAPLAD36KP220AE3 uses a 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 configuration requires no biasing and mounts directly to thermal pads per recommended layout (Ref: RF01216 Rev B, Page 6).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal Base (Bottom) | Cathode | Primary thermal path and current return node; must be soldered to large copper area or heatsink for RθJC = 1.0 °C/W performance. |
| Top-Side Metallization | Anode | Surge current entry point; connects to protected line (e.g., 28 V or 270 V DC bus); polarity marking present on unidirectional variants. |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW Peak Pulse Power Rating | Enables single-device compliance with RTCA DO-160F Section 22 lightning test levels without parallel stacking or derating. |
| 1.0 °C/W Junction-to-Case Thermal Resistance | Reduces thermal runaway risk during repetitive surges by enabling rapid heat dissipation into PCB copper or external heatsinks. |
| AEC-Q101 Qualified & MIL-PRF-19500 Upscreening Options | Supports qualification for automotive powertrain and aerospace flight-critical applications requiring lot traceability and extended reliability screening. |
| RoHS Compliant (e3 Matte-Tin Plating) | Ensures lead-free assembly compatibility and long-term solder joint integrity under thermal cycling in harsh environments. |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints, simplifying SMT line logistics and reducing handling overhead. |
Applications
| Aerospace Power Bus Protection | Automotive Load Dump Suppression |
|---|---|
Use Scenario: Protecting 270 V DC distribution buses in commercial aircraft against induced lightning transients per RTCA DO-160F Waveform 4 Level 4. IC Role / Device Role / Timing Role: Parallel-connected clamping TVS that activates within <100 ps to limit bus overvoltage during multi-stroke events. Use Value: Enables compliance with DO-160F Section 22 without external heatsinking or complex crowbar circuits due to 36 kW rating and 1.0 °C/W RθJC. | Use Scenario: Safeguarding engine control units (ECUs) and body control modules (BCMs) during alternator load dump events in 12 V/24 V vehicle systems. IC Role / Device Role / Timing Role: Primary surge suppression element placed at battery input, clamping transients up to 120 V for >400 ms duration. Use Value: Withstands 990 A peak current and maintains clamping below 356 V, preventing latch-up or destruction of downstream 3.3 V/5 V logic supplies. |
| Industrial Motor Drive DC Link Protection | Railway Traction System Surge Mitigation |
Use Scenario: Shielding IGBT gate drivers and bus voltage sensors in variable-frequency drives subjected to switching-induced transients and EFT bursts. IC Role / Device Role / Timing Role: Fast-acting shunt protector across DC link capacitors, activated by dV/dt exceeding 220 V. Use Value: 10 μA max ID ensures no measurable loading on precision voltage sensing networks; 245–271 V V(BR) provides stable trigger point across temperature. | Use Scenario: Secondary lightning protection for onboard electronics in rolling stock exposed to 42 Ω source impedance surges per IEC 61000-4-5 Class 3. IC Role / Device Role / Timing Role: Line-side TVS on 1500 V DC traction auxiliary power supply inputs. Use Value: Validated for Class 3 with 42 Ω source per documentation; 356 V VC limits stress on downstream DC/DC converters rated for 400 V input. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220A | 600 W PPP rating, 220 V VWM, SMA package, RθJA = 50 °C/W - lacks multi-stroke capability and DO-160F validation. | Restricted to consumer/industrial low-energy surges; not qualified for aerospace lightning standards. | Select SMBJ220A only for cost-sensitive non-safety-critical designs where 36 kW surge immunity is unnecessary. |
| SMCJ220A | 1500 W PPP, same VWM, SMC package, RθJA = 25 °C/W - insufficient for DO-160F Waveform 4 Level 4 or IEC 61000-4-5 Class 3. | Applicable to basic industrial ESD/EFT protection but cannot meet multi-stroke lightning energy requirements. | Choose SMCJ220A when board space permits larger SMC footprint and system-level testing confirms lower surge exposure. |
Compared with SMBJ220A and SMCJ220A, the MAPLAD36KP220AE3 delivers 24× and 24× higher peak pulse power respectively, validated clamping performance under RTCA DO-160F and IEC 61000-4-5, and integrated thermal design enabling direct PCB heatsinking - making it the sole option for certified aerospace and high-reliability automotive surge protection.
Availability
MAPLAD36KP220AE3 is available at Aetrix Electronics and suitable for aerospace power bus protection, automotive load dump suppression, and industrial motor drive DC link protection requiring stable component supply across extended production lifecycles.
Supply support for MAPLAD36KP220AE3 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 MAPLAD36KP220AE3 belongs to Microsemi's high-power PLAD-series TVS family, engineered specifically for multi-stroke lightning and load-dump protection in safety-critical avionics and transportation systems where thermal robustness and standards compliance are mandatory.
FAQ
What is the clamping voltage specification for MAPLAD36KP220AE3 under full-rated surge conditions?
The MAPLAD36KP220AE3 has a maximum clamping voltage (VC) of 356 V at 990 A peak impulse current (IPP) under 10/1000 μs waveform conditions. This value is measured per Figure 3 in RF01216 Rev B and ensures protected circuitry remains below safe overvoltage thresholds during worst-case lightning transients. The clamping performance is guaranteed across the full operating temperature range and validated per AEC-Q101 stress testing.
Does MAPLAD36KP220AE3 meet RTCA DO-160F lightning protection requirements?
Yes, MAPLAD36KP220AE3 is explicitly validated for RTCA DO-160F Section 22 lightning-induced transient testing. It achieves Waveform 4 (6.4/69 μs) Level 4 protection and Waveform 5A (40/120 μs) Level 4 up to 78 V VWM - confirming its suitability for primary and secondary lightning protection in commercial aircraft systems. Documentation is provided in RF01216 Rev B, page 1.
What is the thermal resistance profile of MAPLAD36KP220AE3, and how does it impact PCB layout?
The MAPLAD36KP220AE3 has a junction-to-case thermal resistance (RθJC) of 1.0 °C/W and junction-to-ambient (RθJA) of 50 °C/W when mounted on FR4 with the recommended pad layout. To achieve rated 36 kW performance, the metal base (cathode) must be soldered to a minimum 12.3 mm × 10.5 mm copper area per RF01216 Rev B, Page 6. Failure to implement this thermal pad reduces surge endurance significantly.
Is MAPLAD36KP220AE3 RoHS compliant, and what does the 'e3' suffix indicate?
Yes, MAPLAD36KP220AE3 is RoHS compliant, as confirmed by the 'e3' suffix in its part number. This denotes annealed matte-tin plating per J-STD-020B, ensuring lead-free solderability and long-term intermetallic stability. The device is moisture sensitivity Level 1, eliminating dry-pack requirements and supporting standard SMT reflow profiles without baking.
How does the MAPLAD36KP220AE3 differ from standard SMCJ or SMBJ series TVS diodes?
The MAPLAD36KP220AE3 differs fundamentally in power handling, thermal design, and qualification: it delivers 36 kW peak pulse power (vs. 1.5 kW for SMCJ220A and 600 W for SMBJ220A), features a metal-base package with 1.0 °C/W RθJC (vs. plastic-body SMC/SMB with RθJA > 25 °C/W), and is AEC-Q101 qualified and DO-160F validated - whereas SMCJ/SMBJ parts lack multi-stroke lightning certification and high-reliability screening.
MAPLAD36KP220AE3 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):
- 220V
- Voltage - Breakdown (Min):
- 245V
- Voltage - Clamping (Max) @ Ipp:
- 356V
- Current - Peak Pulse (10/1000µs):
- 102A
- 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
MAPLAD36KP220AE3 FAQ
1.How can I place an order for MAPLAD36KP220AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP220AE3 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 MAPLAD36KP220AE3 reliable?
The price and inventory of MAPLAD36KP220AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP220AE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP220AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP220AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP220AE3?
MAPLAD36KP220AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP220AE3 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 MAPLAD36KP220AE3?
For technical support, including MAPLAD36KP220AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP220AE3 requirements.
6.How does Aetrix verify that MAPLAD36KP220AE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP220AE3 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 MAPLAD36KP220AE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP220AE3?
All MAPLAD36KP220AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP220AE3, 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 MAPLAD36KP220AE3 part is unused and in its original packaging.
Return procedure for MAPLAD36KP220AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP220AE3 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
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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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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Diodes Incorporated
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