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Microchip Technology MAPLAD36KP30AE3
- Part No.:
- MAPLAD36KP30AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP30AE3.pdf
- Description:
- TVS DIODE 30VWM 48.8VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:2,098
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Product details
Overview
MAPLAD36KP30AE3 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, features a 30 V reverse standoff voltage (VWM), clamps to ≤48.8 V at 738 A peak impulse current, and operates across –55°C to +150°C junction temperature. It is qualified to AEC-Q101 and meets RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MAPLAD36KP30AE3 datasheet, MAPLAD36KP30AE3 pinout, MAPLAD36KP30AE3 application, or MAPLAD36KP30AE3 equivalent, key selection criteria include its 30 V VWM rating, low 1.0 °C/W junction-to-case thermal resistance, RoHS-compliant e3 plating, bidirectional variants (CA suffix), and IEC 61000-4-5 Class 4/5 secondary lightning protection capability with 42 Ω source impedance.
Technical Context
This TVS diode uses silicon avalanche technology to provide fast-response clamping against high-energy transients. Its metal-base package enables direct thermal coupling to PCB copper or heatsinks, supporting sustained surge handling under ≤0.05% duty cycle conditions per Figure 1 and 2. The device exhibits <100 ps response time from 0 V to V(BR) min and maintains stable breakdown voltage with ±0.03 %/°C temperature coefficient.
It is characterized for operation at 25°C ambient unless otherwise specified, with derated PPP above 25°C per Figure 3. Standby current ID is ≤10 μA at VWM, and forward clamping voltage is 4.0 V at 500 A - critical for protecting downstream logic during forward-biased surges in DC power rails.
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 transients per DO-160F Waveform 4/5A. |
| Reverse Standoff Voltage (VWM) | 30 V - matches nominal 24 V automotive and avionics bus systems while allowing margin above peak operating voltage. |
| Max Clamping Voltage (VC) | 48.8 V @ IPP = 738 A - ensures protected circuitry remains below 50 V absolute maximum rating during worst-case surge. |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - allows efficient heat transfer to PCB copper pour or external heatsink, essential for multi-pulse reliability. |
| Breakdown Voltage (V(BR)) | 33.3–36.8 V @ 5 mA - guarantees robust turn-on threshold with tight 5.3% tolerance, minimizing false triggering. |
| Steady-State Power Dissipation | 2.5 W @ TA = 25°C - supports continuous biasing in always-on protection circuits without thermal runaway. |
| Moisture Sensitivity Level | Level 1 per J-STD-020B - eliminates dry-pack requirement and reflow compatibility concerns for standard SMT assembly. |
Pinout & Package
MAPLAD36KP30AE3 uses a surface-mount PLAD package with metal base cathode termination. The package measures 12.32 × 10.54 × 5.08 mm (L × W × H) and features tin-plated terminals compliant with MIL-STD-750 Method 2026. Polarity is marked on unidirectional versions: cathode is the metal base (bottom side).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top metallization) | Surge current entry point | Connected to protected line (e.g., 24 V rail); conducts during reverse-biased transients. |
| Cathode (metal base) | Surge current return path & thermal interface | Soldered directly to large copper pour or heatsink; provides lowest possible RθJC for thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| High-reliability wafer lot traceability | Enables full process traceability for aerospace and defense programs requiring MIL-PRF-19500 upscreening options. |
| AEC-Q101 qualification | Validates robustness for automotive powertrain and body electronics applications subject to harsh thermal and vibration stress. |
| RTCA DO-160F Waveform 4/5A compliance | Meets Level 4/5 pin-injection immunity for aircraft avionics interfaces without external filtering components. |
| IEC 61000-4-5 Class 4/5 support (42 Ω) | Provides secondary lightning protection for 24 V systems up to long-distance cable runs without additional series impedance. |
| e3 RoHS-compliant matte-tin plating | Ensures solderability and intermetallic formation control in lead-free reflow profiles up to 260°C for 10 s. |
Applications
| Aircraft Avionics Power Input | Automotive 24 V Load Dump Protection |
|---|---|
Use Scenario: Protecting ARINC 429 receivers and flight control sensors from induced transients on 28 V DC power inputs during lightning strikes. IC Role / Device Role / Timing Role: Primary clamping element placed at board-level power entry before DC/DC converters and LDOs. Use Value: Withstands ≥5000 surges at 738 A per RTCA DO-160 Section 22, eliminating need for redundant TVS stages. |
Use Scenario: Safeguarding engine control units (ECUs) during alternator load dump events in commercial trucks and off-highway vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS shunting surge energy away from microcontroller power rails and CAN transceivers. Use Value: Clamps within 100 ps to limit voltage overshoot below 50 V, preventing latch-up in 3.3 V/5 V logic domains. |
| Industrial 24 V PLC I/O Modules | Railway Signaling Power Interfaces |
Use Scenario: Shielding digital input modules from EFT bursts and switching transients in factory automation cabinets with shared 24 V backplanes. IC Role / Device Role / Timing Role: Board-edge TVS on each I/O channel, paired with series ferrite beads for combined ESD/EFT suppression. Use Value: Meets IEC 61000-4-4 Level 4 (4 kV) and IEC 61000-4-2 Level 4 (15 kV air/8 kV contact) without derating. |
Use Scenario: Securing 24 V signaling lines in European railway signaling equipment exposed to traction-induced surges and electromagnetic interference. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT) front-end, absorbing residual energy per EN 50121-3-2. Use Value: Delivers 36 kW pulse handling with 1.0 °C/W RθJC, enabling compact layout in space-constrained signaling enclosures. |
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 SMAJ30A | Lower PPP (400 W), DO-214AC package, RθJA = 40 °C/W, no AEC-Q101 or DO-160 qualification. | Targeted at consumer-grade industrial controls; lacks multi-stroke lightning validation and high-reliability screening. | Select when cost sensitivity outweighs aerospace/automotive certification requirements and surge energy is <1 kA. |
| Vishay SM8S30A | Higher PPP (6600 W), same DO-214AB footprint, but RθJC = 2.5 °C/W and no DO-160F Waveform 4/5A data published. | Suitable for automotive infotainment, not certified for flight-critical systems or long-duration multi-pulse testing. | Choose for volume automotive applications needing AEC-Q101 and higher surge count than SMAJ, but not DO-160F compliance. |
Compared with MAPLAD36KP30AE3, SMAJ30A offers lower cost but cannot meet DO-160F lightning standards or sustain repeated 36 kW pulses, while SM8S30A provides intermediate power handling and AEC-Q101 qualification but lacks documented RTCA/DO-160F waveform validation and has inferior thermal resistance for high-duty-cycle use.
Availability
MAPLAD36KP30AE3 is available at Aetrix Electronics and suitable for aircraft avionics, automotive ECUs, industrial PLC I/O modules, and railway signaling systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for MAPLAD36KP30AE3 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 and mixed-signal semiconductors for aerospace, defense, and industrial markets, with expertise in radiation-hardened ICs, timing solutions, and power protection devices.
The MAPLAD36KP30AE3 belongs to Microsemi's high-power PLAD-series TVS family, engineered specifically for multi-stroke lightning protection and automotive load dump immunity in mission-critical 24 V systems.
FAQ
What is the clamping voltage of MAPLAD36KP30AE3 at its rated peak pulse current?
The MAPLAD36KP30AE3 clamps to a maximum of 48.8 V at its rated peak impulse current of 738 A under 10/1000 μs waveform conditions. This value is guaranteed across temperature and ensures protected downstream circuitry remains within safe voltage limits during surge events. The clamping performance is validated per Figure 3 in the RF01216 datasheet.
Is MAPLAD36KP30AE3 qualified for automotive applications?
Yes, MAPLAD36KP30AE3 is AEC-Q101 qualified, confirming its suitability for automotive powertrain and chassis applications. It meets stringent stress tests including temperature cycling, humidity bias, and mechanical shock - making it appropriate for 24 V load dump protection in ECUs, ADAS modules, and battery management systems where reliability is critical.
Does MAPLAD36KP30AE3 support RTCA DO-160F lightning protection standards?
Yes, MAPLAD36KP30AE3 is explicitly validated for RTCA DO-160F Section 22 multi-stroke lightning testing, including Waveform 4 (6.4/69 μs) Level 4 and Waveform 5A (40/120 μs) Level 4. Its 36 kW rating and low clamping voltage enable compliance without additional external components, as confirmed in Microsemi Application Note RF01216 Rev B.
What is the thermal resistance profile of MAPLAD36KP30AE3?
MAPLAD36KP30AE3 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 recommended pad layout. This low RθJC enables effective heat dissipation into PCB copper or external heatsinks, supporting reliable operation under repetitive surge conditions with ≤0.05% duty factor.
How does the e3 suffix in MAPLAD36KP30AE3 affect assembly?
The e3 suffix in MAPLAD36KP30AE3 indicates RoHS-compliant annealed matte-tin plating, fully compatible with lead-free reflow profiles up to 260°C for 10 seconds per J-STD-020B. It ensures consistent wetting and intermetallic formation without voiding or dewetting risks, eliminating dry-pack requirements due to its IPC/JEDEC Moisture Sensitivity Level 1 rating.
MAPLAD36KP30AE3 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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.8V
- Current - Peak Pulse (10/1000µs):
- 738A
- 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
MAPLAD36KP30AE3 FAQ
1.How can I place an order for MAPLAD36KP30AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP30AE3 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 MAPLAD36KP30AE3 reliable?
The price and inventory of MAPLAD36KP30AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP30AE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP30AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP30AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP30AE3?
MAPLAD36KP30AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP30AE3 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 MAPLAD36KP30AE3?
For technical support, including MAPLAD36KP30AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP30AE3 requirements.
6.How does Aetrix verify that MAPLAD36KP30AE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP30AE3 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 MAPLAD36KP30AE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP30AE3?
All MAPLAD36KP30AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP30AE3, 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 MAPLAD36KP30AE3 part is unused and in its original packaging.
Return procedure for MAPLAD36KP30AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP30AE3 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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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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Toshiba Semiconductor and Storage
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Diodes Incorporated
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