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Microchip Technology MAPLAD36KP150CAE3
- Part No.:
- MAPLAD36KP150CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MAPLAD36KP150CAE3.pdf
- Description:
- TVS DIODE 150VWM 243VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:2,877
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Product details
Overview
MAPLAD36KP150CAE3 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 kW peak pulse power at 10/1000 μs, features a 150 V reverse standoff voltage (VWM), clamps to ≤243 V at 149 A peak pulse current (IPP), and operates across –55°C to +150°C junction temperature - deployed in aircraft lightning protection per RTCA DO-160 Section 22.
For engineers reviewing the MAPLAD36KP150CAE3 datasheet, MAPLAD36KP150CAE3 pinout, MAPLAD36KP150CAE3 application, or MAPLAD36KP150CAE3 equivalent, key selection criteria include bidirectional polarity, 150 V VWM matching system bus voltage, IEC 61000-4-5 Class 4/5 secondary lightning compliance with 42 Ω source impedance, and thermal resistance of 1.0 °C/W junction-to-case for high-reliability PCB-mounted surge suppression.
Technical Context
This TVS diode uses silicon avalanche technology to provide fast-response clamping during high-energy transients. Its bidirectional construction enables symmetrical protection on AC lines or differential buses without polarity constraints, and its low RθJC (1.0 °C/W) supports direct mounting to metal-core PCBs or heatsinks for sustained multi-stroke operation.
It meets RTCA DO-160F Waveform 4 (6.4/69 μs) Level 5 up to 300 V VWM and Waveform 5A (40/120 μs) Level 5 up to 38 V VWM - confirming suitability for pin-injection hardening in avionics interfaces where transient immunity must coexist with signal integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - sustains full-rated surge energy without degradation under single-event or low-duty-cycle multi-stroke conditions |
| Reverse Standoff Voltage (VWM) | 150 V - maximum continuous DC or peak AC voltage the device blocks before entering breakdown; matches 120–150 V aircraft bus or industrial control line |
| Clamping Voltage (VC) | 243 V @ IPP = 149 A - limits downstream voltage stress to safe levels for 150 V-rated ICs and connectors during surge events |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to PCB copper or external heatsink, critical for thermal stability in repeated surge scenarios |
| Operating Temperature Range | –55°C to +150°C - qualified for extended life in engine bay, avionics bays, and other high-temperature embedded environments |
| Surge Standards Compliance | IEC 61000-4-5 (Class 4/5, 42 Ω ZS); RTCA DO-160F Waveform 4 Level 5 - validated for secondary lightning and pin-injection hardening in certified airborne equipment |
Pinout & Package
The MAPLAD36KP150CAE3 is housed in a surface-mount PLAD package with two terminals: anode and cathode formed on opposite sides of the metal base. The metal base serves as the cathode terminal for unidirectional variants; for bidirectional devices like MAPLAD36KP150CAE3, both terminals are symmetrical and non-polarized - no cathode marking required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Terminal 1) | Surge current entry point (bidirectional) | Accepts transient current from either direction; connects to protected line (e.g., RS-485 A/B, CAN H/L, or AC input) |
| Cathode (Terminal 2) | Surge current return path (bidirectional) | Completes low-inductance path to ground or reference plane; mounted directly to large copper pour or chassis ground |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional symmetry | Enables identical clamping performance on both polarities - eliminates orientation concerns during placement and supports AC-coupled or differential signal lines |
| RoHS-compliant matte-tin plating (e3) | Ensures reliable solderability per MIL-STD-750 Method 2026 and compatibility with lead-free reflow profiles up to 260°C |
| Moisture Sensitivity Level 1 | Permits unlimited floor life without dry-packaging or baking - reduces handling overhead in high-mix SMT production |
| AEC-Q101 qualified | Validates robustness for automotive under-hood applications including load dump and ISO 7637-2 pulse testing |
| Wafer and assembly lot traceability | Supports full supply chain auditability and failure analysis for aerospace and defense programs requiring AS9100-compliant sourcing |
Applications
| Aircraft Avionics Power Input | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Protecting 28 V DC primary power inputs of flight management computers and inertial navigation units against lightning-induced surges per RTCA DO-160 Section 22. IC Role / Device Role / Timing Role: Primary-level TVS clamp placed upstream of DC/DC converters and LDOs to prevent overvoltage damage during multi-stroke events. Use Value: With 36 kW PPP and 243 V clamping at 149 A, MAPLAD36KP150CAE3 holds downstream 150 V-rated power ICs within safe operating area during 100 kA-equivalent induced transients. | Use Scenario: Safeguarding 12 V/24 V ECU power rails from alternator load dump spikes and ISO 7637-2 Pulse 5a/b transients in commercial and off-highway vehicles. IC Role / Device Role / Timing Role: High-energy transient suppressor mounted at board edge, shunting surge current directly to chassis ground before reaching microcontroller power domains. Use Value: Delivers AEC-Q101 qualification and 150 V VWM alignment with 24 V nominal systems - clamps below 250 V to preserve 28 V-rated gate drivers and CAN transceivers. |
| Industrial Motor Drive DC Bus | Railway Signaling Interface |
Use Scenario: Suppressing switching transients and regenerative energy spikes on 150 V DC intermediate bus lines in variable-frequency drives used in HVAC and pumping systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across DC bus terminals to clamp both positive and negative polarity overshoots caused by IGBT turn-off and cable reflections. Use Value: Symmetrical 150 V standoff and 243 V clamping ensure consistent protection regardless of transient polarity - critical for maintaining bus capacitor voltage integrity. | Use Scenario: Hardening 150 V signaling lines in European railway interlocking systems against EFT bursts and lightning-induced surges per EN 50121-3-2 and IEC 61000-4-5 Class 4. IC Role / Device Role / Timing Role: Secondary surge protector installed at field interface connectors to limit transient energy entering safety-critical signaling modules. Use Value: Validated for 42 Ω source impedance Class 4/5 testing ensures compliance with stringent rail EMC requirements while maintaining low leakage (<10 μA at 150 V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA | 600 W PPP rating, SMB package, 1.5x higher RθJA (50 °C/W vs. 1.0 °C/W), same 150 V VWM and bidirectional polarity | Not suitable for multi-stroke lightning or high-repetition surges; limited to consumer/industrial grade single-event protection | Select SMBJ150CA only when surge energy is <10% of MAPLAD36KP150CAE3's capability and thermal budget permits ambient-only cooling. |
| SMCJ150CA | 1500 W PPP rating, SMC package, RθJC ≈ 3.5 °C/W, same VWM and polarity, AEC-Q101 qualified | Lacks RTCA DO-160F Waveform 4/5 validation and MIL-PRF-19500 screening options; not rated for aircraft secondary lightning | Choose SMCJ150CA for cost-sensitive automotive or industrial designs where 1.5 kW peak power suffices and aerospace certification is unnecessary. |
Compared with SMBJ150CA and SMCJ150CA, MAPLAD36KP150CAE3 provides 24× and 24× higher peak pulse power respectively, coupled with 3.5× and 3.5× lower junction-to-case thermal resistance - enabling reliable operation in mission-critical, multi-stroke, and high-temperature environments where sustained surge immunity is non-negotiable.
Availability
MAPLAD36KP150CAE3 is available at Aetrix Electronics and suitable for aircraft avionics, automotive ECU power protection, and industrial motor drive DC bus applications requiring stable component supply, long-term lifecycle support, and traceable high-reliability sourcing.
Supply support for MAPLAD36KP150CAE3 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 (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 MAPLAD series was developed specifically for high-power, surface-mount transient suppression in certified airborne systems - emphasizing low thermal resistance, multi-stroke endurance, and compliance with RTCA DO-160 and IEC 61000-4-5 standards.
FAQ
What is the clamping voltage of MAPLAD36KP150CAE3 at its rated peak pulse current?
The MAPLAD36KP150CAE3 has a maximum clamping voltage (VC) of 243 V at its rated peak pulse current (IPP) of 149 A under 10/1000 μs waveform conditions. This value is measured per Figure 3 in the RF01216 datasheet and ensures downstream 150 V-rated components remain within safe operating limits during surge events. The clamping behavior is symmetrical due to its bidirectional construction.
Does MAPLAD36KP150CAE3 require special PCB layout considerations for thermal management?
Yes - MAPLAD36KP150CAE3 requires direct thermal coupling to a large copper pour or heatsink via its metal base, as specified in the pad layout (Ref. A = 0.470", B = 0.230"). Its 1.0 °C/W junction-to-case thermal resistance depends on this mounting; insufficient copper area increases junction temperature and degrades multi-stroke reliability. FR4 board mounting with recommended pads achieves the rated 36 kW PPP only at ≤0.05% duty factor.
Is MAPLAD36KP150CAE3 compliant with RoHS and AEC-Q101 standards?
Yes - MAPLAD36KP150CAE3 carries the "e3" suffix indicating RoHS-compliant matte-tin plating and is explicitly tested and qualified to AEC-Q101 for automotive under-hood applications. Its qualification includes surge testing, temperature cycling, and humidity bias life testing - documented in RF01216 Rev B and supported by Microsemi's AEC-Q101 certificate of conformance.
How does MAPLAD36KP150CAE3 differ from unidirectional versions like MAPLAD36KP150AE3?
MAPLAD36KP150CAE3 is bidirectional (denoted by "CA"), providing symmetrical clamping for AC or differential lines, whereas MAPLAD36KP150AE3 is unidirectional ("A") with cathode marked on the metal base. Both share identical VWM (150 V), PPP (36 kW), and package, but only the CA version supports reverse-polarity surge suppression - essential for RS-485, CAN, or Ethernet PHY protection where transient polarity is unpredictable.
Can MAPLAD36KP150CAE3 be used for IEC 61000-4-5 Class 5 lightning protection?
Yes - MAPLAD36KP150CAE3 is validated for IEC 61000-4-5 Class 5 secondary lightning protection with 42 Ω source impedance (short-distance configuration) and Class 4 with 12 Ω and 2 Ω impedances. Its 36 kW rating and low clamping voltage enable compliance where lower-power TVS devices fail - confirmed in Table on page 3 of RF01216 for MPLAD36KP14A to 300CA variants.
MAPLAD36KP150CAE3 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):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 243V
- Current - Peak Pulse (10/1000µs):
- 149A
- 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
MAPLAD36KP150CAE3 FAQ
1.How can I place an order for MAPLAD36KP150CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAPLAD36KP150CAE3 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 MAPLAD36KP150CAE3 reliable?
The price and inventory of MAPLAD36KP150CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAPLAD36KP150CAE3 is usually 5 days.
3.What payment methods are accepted for MAPLAD36KP150CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAPLAD36KP150CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAPLAD36KP150CAE3?
MAPLAD36KP150CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAPLAD36KP150CAE3 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 MAPLAD36KP150CAE3?
For technical support, including MAPLAD36KP150CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAPLAD36KP150CAE3 requirements.
6.How does Aetrix verify that MAPLAD36KP150CAE3 is sourced from the original manufacturer or authorized distributors?
All MAPLAD36KP150CAE3 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 MAPLAD36KP150CAE3 meets industry standards.
7.What is the process for return or replacement of MAPLAD36KP150CAE3?
All MAPLAD36KP150CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MAPLAD36KP150CAE3, 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 MAPLAD36KP150CAE3 part is unused and in its original packaging.
Return procedure for MAPLAD36KP150CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAPLAD36KP150CAE3 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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