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Microchip Technology MPLAD36KP110CA
- Part No.:
- MPLAD36KP110CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP110CA.pdf
- Description:
- TVS DIODE 110VWM 177VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:2,655
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Product details
Overview
MPLAD36KP110CA 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, clamps transients to ≤177 V at 204 A, and features a 110 V reverse standoff voltage (VWM) with ±5% tolerance. It is qualified to AEC-Q101 and meets RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MPLAD36KP110CA datasheet, MPLAD36KP110CA pinout, MPLAD36KP110CA application, or MPLAD36KP110CA equivalent, key selection criteria include bidirectional clamping capability, IEC 61000-4-5 Class 5 compliance at 42 Ω source impedance, thermal resistance of 1.0 °C/W junction-to-case, and RoHS-compliant e3 plating - all critical for avionics power rail protection and load dump suppression.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device during fast-rising transients, leveraging avalanche breakdown across its silicon junction. Its bidirectional construction enables symmetrical clamping for AC-coupled or floating signal/power lines, and it is characterized for operation from −55 °C to +150 °C junction temperature.
It is tested per AEC-Q101 stress conditions and supports secondary lightning protection per IEC 61000-4-5 with 42 Ω, 12 Ω, and 2 Ω source impedances - with verified Class 5 performance up to 110 V standoff in short-distance configurations. Clamping response time is <5 ns, ensuring sub-microsecond suppression of ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and pin-injection waveforms (RTCA/DO-160F Waveform 4 & 5A).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - sustains full-rated surge energy without failure under standard lightning waveform testing |
| Reverse Standoff Voltage (VWM) | 110 V - maximum continuous DC or peak AC voltage the device blocks without conduction |
| Breakdown Voltage (VBR) | 122–135 V @ 5 mA - defines onset of avalanche conduction; ensures margin above VWM |
| Max Clamping Voltage (VC) | 177 V @ 204 A - upper limit of voltage seen by protected circuit during worst-case surge |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to PCB copper or heatsink, critical for repetitive surge duty |
| Surge Current (IPP) | 204 A @ 10/1000 μs - peak current the device safely shunts while maintaining clamping integrity |
| Temperature Coefficient (αVBR) | 132 mV/°C - quantifies VBR drift over temperature; used for derating in wide-temperature designs |
Pinout & Package
The MPLAD36KP110CA uses a thermally optimized surface-mount PLAD package with metal base (cathode side) for low-inductance, high-current path routing. Dimensions: 12.32 × 10.54 × 5.08 mm (L × W × H), weight ~1.85 g. The metal base serves as the cathode terminal for both polarities in bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal Base (Bottom) | Cathode / Common Terminal | Primary thermal and current return path; must be soldered to large copper pour for RθJC = 1.0 °C/W |
| Top Surface Pad | Anode / Common Terminal | Second terminal completing bidirectional conduction path; symmetric layout enables orientation-agnostic placement |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping architecture | Enables protection of AC-coupled or floating bus lines without polarity constraints - essential for aircraft data buses and sensor interfaces |
| RTCA DO-160F Section 22 compliance | Validated for multi-stroke lightning simulation (Waveform 4 & 5A), supporting Level 4/5 pin injection up to 110 V standoff |
| AEC-Q101 qualification | Confirms reliability under automotive temperature cycling, humidity, and mechanical shock - required for engine bay and chassis electronics |
| RoHS-compliant e3 matte-tin plating | Ensures solderability per MIL-STD-750 Method 2026 and eliminates lead-based assembly concerns in aerospace supply chains |
| 1.0 °C/W RθJC with FR4 pad | Allows >90% of surge energy to dissipate through PCB copper, reducing thermal stress on adjacent components |
Applications
| Aircraft Power Distribution Units | Automotive Engine Control Modules |
|---|---|
Use Scenario: Protecting 28 V DC main bus inputs in airborne power distribution units against lightning-induced surges per DO-160 Section 22. IC Role / Device Role / Timing Role: Primary transient voltage suppressor placed at board-level input connector to clamp incoming surges before they reach upstream regulators and fuses. Use Value: Delivers 36 kW clamping with <5 ns response, meeting Class 5 lightning immunity without requiring external heatsinking or derating. | Use Scenario: Safeguarding 12 V battery-fed ECU inputs against load dump transients exceeding 120 V during alternator regulation failure. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power rail to absorb reverse-polarity spikes and positive overshoot simultaneously. Use Value: Withstands 204 A peak current at 177 V clamping, eliminating need for series resistors or additional filtering stages in compact ECU layouts. |
| Industrial Motor Drive Gate Drivers | Railway Signaling Interfaces |
Use Scenario: Shielding isolated gate driver supplies in IGBT-based motor drives from switching-induced common-mode transients. IC Role / Device Role / Timing Role: Secondary protection device across isolated DC/DC converter outputs to prevent latch-up in level-shifted control logic. Use Value: 110 V VWM aligns with 100 V-rated isolated supplies; 132 mV/°C αVBR allows accurate thermal derating across −40 °C to +125 °C operating range. | Use Scenario: Hardening Ethernet-over-Track signaling interfaces against induced surges from nearby traction currents and lightning coupling. IC Role / Device Role / Timing Role: Line-side TVS on differential pair inputs to suppress common-mode transients while preserving signal integrity up to 100 Mbps. Use Value: Bidirectional symmetry ensures equal clamping on both conductors; 1.0 °C/W RθJC supports sustained operation in sealed enclosures without forced air cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA | 600 W PPP rating, 5.0 mm × 4.5 mm SMB package, RθJC = 15 °C/W | Limited to single-stroke surges; not qualified for DO-160 multi-stroke or AEC-Q101 | Select when cost-sensitive, low-energy industrial I/O protection suffices and aerospace/automotive qualification is unnecessary |
| SMCJ110CA | 1500 W PPP rating, 7.2 mm × 6.2 mm SMC package, RθJC = 3.5 °C/W | Supports higher repetition rates than SMBJ but lacks 36 kW capability and DO-160F Waveform 5A validation | Choose for mid-tier automotive body electronics where 1500 W clamping meets OEM test plans but full DO-160 compliance is not mandated |
Compared with SMBJ110CA and SMCJ110CA, the MPLAD36KP110CA provides 24× and 24× higher peak pulse power respectively, validated clamping performance under RTCA DO-160F multi-stroke lightning, and AEC-Q101 qualification - making it uniquely suitable for primary surge protection in safety-critical aerospace and high-end automotive power systems.
Availability
MPLAD36KP110CA is available at Aetrix Electronics and suitable for aircraft power distribution units, automotive engine control modules, and industrial motor drive gate drivers requiring stable component supply across extended product lifecycles.
Supply support for MPLAD36KP110CA 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, RF, and timing solutions for aerospace, defense, and industrial markets.
The MPLAD series was developed specifically for high-power, surface-mount transient suppression in mission-critical platforms - emphasizing thermal robustness, multi-stroke surge endurance, and qualification to RTCA DO-160 and AEC-Q101 standards.
FAQ
What is the clamping voltage of MPLAD36KP110CA at its rated peak pulse current?
The MPLAD36KP110CA has a maximum clamping voltage (VC) of 177 V at its rated peak pulse current of 204 A under 10/1000 μs waveform conditions. This value is measured per Figure 3 in the RF01216 datasheet and represents the upper bound of voltage imposed on the protected circuit during worst-case surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is MPLAD36KP110CA qualified for automotive applications?
Yes, MPLAD36KP110CA is fully qualified to AEC-Q101 for stress testing including temperature cycling, humidity, and mechanical shock. Its 110 V VWM, 177 V clamping, and 204 A surge capability make it suitable for protecting 12 V and 24 V automotive power rails against load dump and ISO 7637-2 transients - especially in engine control, transmission, and ADAS modules requiring high-reliability surge suppression.
Does MPLAD36KP110CA meet RTCA DO-160 lightning protection requirements?
Yes, MPLAD36KP110CA is explicitly validated for RTCA DO-160 Section 22 multi-stroke lightning testing. It achieves Level 4 and Level 5 pin injection protection per Waveform 4 (6.4/69 μs) up to 110 V VWM, and supports secondary lightning protection per IEC 61000-4-5 with 42 Ω source impedance - confirming suitability for primary surge protection in certified avionics equipment.
What is the thermal resistance and recommended mounting for MPLAD36KP110CA?
The MPLAD36KP110CA has a junction-to-case thermal resistance (RθJC) of 1.0 °C/W when mounted on an FR4 PCB using the recommended pad layout (Ref. A=0.470", B=0.230"). The metal base must be soldered to a minimum 1.0 in² copper pour to achieve this rating. This low RθJC enables effective heat dissipation during repetitive surge events without external heatsinks.
How does the bidirectional construction of MPLAD36KP110CA affect its circuit implementation?
The bidirectional construction of MPLAD36KP110CA means it conducts symmetrically in both directions - ideal for protecting AC-coupled lines, floating grounds, or differential buses where polarity reversal may occur. Unlike unidirectional TVS devices, no orientation marking is needed on PCB silkscreen, and it eliminates risk of incorrect placement in high-density layouts - simplifying design and manufacturing for aerospace and railway signaling interfaces.
MPLAD36KP110CA 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):
- 110V
- Voltage - Breakdown (Min):
- 122V
- Voltage - Clamping (Max) @ Ipp:
- 177V
- Current - Peak Pulse (10/1000µs):
- 204A
- 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
MPLAD36KP110CA FAQ
1.How can I place an order for MPLAD36KP110CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP110CA 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 MPLAD36KP110CA reliable?
The price and inventory of MPLAD36KP110CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP110CA is usually 5 days.
3.What payment methods are accepted for MPLAD36KP110CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP110CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP110CA?
MPLAD36KP110CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP110CA 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 MPLAD36KP110CA?
For technical support, including MPLAD36KP110CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP110CA requirements.
6.How does Aetrix verify that MPLAD36KP110CA is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP110CA 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 MPLAD36KP110CA meets industry standards.
7.What is the process for return or replacement of MPLAD36KP110CA?
All MPLAD36KP110CA units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP110CA, 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 MPLAD36KP110CA part is unused and in its original packaging.
Return procedure for MPLAD36KP110CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP110CA 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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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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D5V0L1B2WS-7
Diodes Incorporated
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