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Microchip Technology MAPLAD36KP280AE3
- Part No.:
- MAPLAD36KP280AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP280AE3.pdf
- Description:
- TVS DIODE 280VWM 451VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:3,228
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Product details
Overview
MAPLAD36KP280AE3 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 280 V reverse standoff voltage (VWM), clamps to ≤451 V at 80 A peak pulse current (IPP), and exhibits 1.0 °C/W junction-to-case thermal resistance for robust thermal management in lightning and load dump events.
For engineers reviewing the MAPLAD36KP280AE3 datasheet, MAPLAD36KP280AE3 pinout, MAPLAD36KP280AE3 application, or MAPLAD36KP280AE3 equivalent, this device is selected for secondary lightning protection per IEC 61000-4-5 (12 Ω source, Class 4), RTCA DO-160F Waveform 4 Level 4 compliance, and high-reliability industrial power rail protection where low-profile SMT mounting and traceable lot screening are required.
Technical Context
This TVS diode operates as a clamping-type overvoltage protector with avalanche breakdown behavior. Its unidirectional polarity places the cathode on the metal base (package bottom), enabling direct thermal coupling to PCB copper or heatsinks. The device meets AEC-Q101 stress testing and supports MIL-PRF-19500 upscreening options for high-reliability programs.
It is rated for junction temperatures from –55 °C to +150 °C, has a moisture sensitivity level (MSL) of 1 per J-STD-020B, and uses void-free UL94V-0 epoxy packaging with annealed matte-tin plating compliant with MIL-STD-750 Method 2026.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 280 V - Maximum continuous DC or peak AC operating voltage the device blocks without conduction. |
| V(BR) min/max | 311–345 V @ 5 mA - Confirmed breakdown range ensures reliable turn-on above system operating margin. |
| VC @ IPP | ≤451 V @ 80 A - Clamping voltage limits downstream component stress during 10/1000 μs transients. |
| PPP | 36,000 W @ 10/1000 μs - Enables single-device protection against severe lightning-induced surges. |
| RθJC | 1.0 °C/W - Low thermal resistance allows effective heat transfer to heatsink or large copper pour. |
| ID @ VWM | ≤10 μA - Negligible leakage preserves efficiency in high-impedance bias networks. |
| αV(BR) | 24 mV/°C - Predictable temperature coefficient supports stable clamping across operating range. |
Pinout & Package
MAPLAD36KP280AE3 uses a proprietary high-power surface-mount package with metal base cathode termination. The device has two terminals: anode (top metallization) and cathode (exposed metal base). Mounting requires thermal pad layout per datasheet Figure "PAD LAYOUT" (A = 0.470", B = 0.230", C = 0.100", D = 0.045").
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive input terminal | Connected to protected line; conducts only during reverse-biased avalanche clamping event. |
| Cathode (metal base) | Reference/return path | Electrically and thermally connected to PCB ground plane or heatsink; must be soldered to thermal pad. |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW peak pulse rating | Single-device protection against RTCA DO-160 Section 22 multi-stroke lightning events without parallel staging. |
| RoHS-compliant e3 marking | Meets global environmental compliance requirements without lead content or exemptions. |
| AEC-Q101 qualified | Validated for automotive underhood applications including load dump and ISO 7637-2 pulse 5a/b. |
| MSL Level 1 | No dry pack or baking required prior to reflow, reducing manufacturing overhead and moisture-related defects. |
| Wafer and assembly lot traceability | Enables full supply chain auditability for aerospace and defense programs requiring strict configuration control. |
Applications
| Aerospace Avionics Power Protection | Automotive Engine Control Unit (ECU) Input Protection |
|---|---|
Use Scenario: Protecting 28 V DC aircraft power distribution buses against induced lightning transients per RTCA DO-160F Waveform 4 Level 4. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed at bus entry point to limit voltage excursion to <451 V during 6.4/69 μs surge. Use Value: Eliminates need for external heatsinking while meeting Class 4 immunity without derating at 25°C ambient. | Use Scenario: Safeguarding ECU 12 V input rails from alternator load dump spikes up to 120 V. IC Role / Device Role / Timing Role: Primary clamping device absorbing >36 kW energy within 1000 μs, preventing MOSFET gate oxide failure. Use Value: Achieves AEC-Q101 qualification and supports 1500 A forward surge current (IFSM) for extreme transient resilience. |
| Industrial Motor Drive DC Link Protection | Railway Signaling Power Interface |
Use Scenario: Shielding 300 V DC link inputs in variable-frequency drives from switching-induced transients and EFT bursts. IC Role / Device Role / Timing Role: Secondary surge suppressor positioned after upstream MOVs to handle residual fast-rising edges. Use Value: 24 mV/°C αV(BR) ensures predictable clamping shift across –40 °C to +105 °C drive cabinet environments. | Use Scenario: Securing 110 V DC signaling interfaces in train control systems against IEC 61000-4-5 Class 4 surges (12 Ω source). IC Role / Device Role / Timing Role: Standoff-rated TVS providing precise 280 V blocking with ≤10 μA leakage to preserve signal integrity. Use Value: MSL Level 1 handling enables direct placement into automated SMT lines without moisture mitigation steps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ280A | Lower PPP (600 W), smaller SMB package, higher RθJA (50 °C/W), no AEC-Q101 or DO-160 qualification. | Only suitable for non-critical commercial-grade 280 V rail protection; cannot meet aircraft lightning standards. | Select SMBJ280A only for cost-sensitive, low-energy applications where thermal performance and qualification are not required. |
| SMCJ280A | PPP = 1500 W, SMC package, RθJC ≈ 2.5 °C/W, no upscreening options or lot traceability. | Limited to industrial-grade surge suppression; lacks DO-160F Waveform 4/5 certification data and MIL-PRF-19500 screening path. | Choose SMCJ280A when basic IEC 61000-4-5 Class 3 protection suffices and aerospace/automotive qualification is unnecessary. |
Compared with SMBJ280A and SMCJ280A, MAPLAD36KP280AE3 provides 60× higher peak pulse power, certified compliance with RTCA DO-160F and AEC-Q101, and a thermally optimized metal-base package enabling direct heatsink integration-making it the sole option for mission-critical 280 V DC surge protection in aviation and automotive power systems.
Availability
MAPLAD36KP280AE3 is available at Aetrix Electronics and suitable for aerospace avionics, automotive ECU power inputs, and industrial motor drive DC links requiring stable component supply, long-term lifecycle support, and traceable high-reliability sourcing.
Supply support for MAPLAD36KP280AE3 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 analog, mixed-signal, and power semiconductors for aerospace, defense, and industrial markets.
The PLAD series was developed specifically for high-energy transient suppression in safety-critical platforms where standard TVS devices fail to meet DO-160, AEC-Q101, and IEC 61000-4-5 requirements.
FAQ
What is the clamping voltage of MAPLAD36KP280AE3 at its rated peak pulse current?
MAPLAD36KP280AE3 clamps to a maximum of 451 V at 80 A peak pulse current (IPP) under 10/1000 μs waveform conditions. This value is specified in the Electrical Characteristics table of the RF01216 Rev B datasheet and defines the upper voltage limit imposed on protected circuitry during surge events. The clamping performance remains stable across the full operating temperature range due to its 24 mV/°C breakdown voltage temperature coefficient.
Is MAPLAD36KP280AE3 qualified for automotive applications?
Yes, MAPLAD36KP280AE3 is tested and qualified to AEC-Q101 standards for discrete semiconductors. It is validated for use in automotive engine control units and powertrain modules exposed to load dump and ISO 7637-2 transient pulses. The device's 1500 A forward surge current rating (IFSM) and thermal design support sustained operation in under-hood environments up to +150 °C junction temperature.
Does MAPLAD36KP280AE3 meet RTCA DO-160 lightning protection requirements?
Yes, MAPLAD36KP280AE3 is explicitly rated for RTCA DO-160F Section 22 lightning-induced transient protection. It satisfies Waveform 4 (6.4/69 μs) Level 4 and Waveform 5A (40/120 μs) Level 4 compliance per the manufacturer's application notes and test reports. Its 36 kW peak pulse power rating and low clamping voltage enable multi-stroke lightning resilience without degradation.
What does the "E3" suffix indicate in MAPLAD36KP280AE3?
"E3" denotes RoHS-compliant matte-tin plating per JEDEC J-STD-020B, confirming lead-free terminations and full compliance with EU Directive 2011/65/EU. This suffix replaces legacy tin-lead finishes and ensures compatibility with modern Pb-free reflow profiles while maintaining solderability per MIL-STD-750 Method 2026. The "E3" marking is laser-etched on the device body.
How is thermal management implemented for MAPLAD36KP280AE3 in PCB layout?
Thermal management relies on soldering the metal base (cathode) directly to a large copper thermal pad per the recommended footprint: 0.470" × 0.230" (11.94 mm × 5.85 mm), with 0.100" (2.44 mm) solder mask opening. The 1.0 °C/W junction-to-case thermal resistance requires this pad to connect to internal ground planes or external heatsinks. No additional thermal vias or compound is mandated due to the low RθJC and MSL Level 1 moisture rating.
MAPLAD36KP280AE3 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):
- 280V
- Voltage - Breakdown (Min):
- 311V
- Voltage - Clamping (Max) @ Ipp:
- 451V
- Current - Peak Pulse (10/1000µs):
- 80A
- 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
MAPLAD36KP280AE3 FAQ
1.How can I place an order for MAPLAD36KP280AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP280AE3 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 MAPLAD36KP280AE3 reliable?
The price and inventory of MAPLAD36KP280AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP280AE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP280AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP280AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP280AE3?
MAPLAD36KP280AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP280AE3 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 MAPLAD36KP280AE3?
For technical support, including MAPLAD36KP280AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP280AE3 requirements.
6.How does Aetrix verify that MAPLAD36KP280AE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP280AE3 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 MAPLAD36KP280AE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP280AE3?
All MAPLAD36KP280AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP280AE3, 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 MAPLAD36KP280AE3 part is unused and in its original packaging.
Return procedure for MAPLAD36KP280AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP280AE3 Tags
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ESD9B5.0ST5G
onsemi
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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