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Microchip Technology MXLDA3KP8.5CA
- Part No.:
- MXLDA3KP8.5CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP8.5CA.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:5,018
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Product details
Overview
MXLDA3KP8.5CA from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array designed for high-reliability surge protection in industrial and aerospace systems. It features a 8.5 V reverse standoff voltage (VWM), 9.44–10.4 V breakdown voltage (V(BR)), 14.4 V maximum clamping voltage at 208.4 A peak pulse current, and operates across –55 °C to +150 °C junction temperature. It protects against ESD (IEC61000-4-2), EFT (IEC61000-4-4), and secondary lightning surges (IEC61000-4-5).
For engineers reviewing the MXLDA3KP8.5CA datasheet, MXLDA3KP8.5CA pinout, MXLDA3KP8.5CA application, or MXLDA3KP8.5CA equivalent, this device serves as a RoHS-compliant, surface-mount TVS array with verified 10/1000 µs surge capability, bidirectional polarity, and MIL-PRF-19500 upscreening eligibility - critical for mission-critical power rail and signal line protection.
Technical Context
The MXLDA3KP8.5CA implements a silicon avalanche diode structure optimized for sub-nanosecond response (<5 ns) under bidirectional transients. Its clamping behavior is characterized at 208.4 A IPP with VC ≤ 14.4 V, enabling robust protection of 12 V nominal systems without overvoltage stress on downstream ICs.
It complies with IEC61000-4-5 Class 1–4 secondary lightning testing using 2 Ω, 12 Ω, and 42 Ω source impedances, and supports moisture sensitivity Level 1 per J-STD-020B - eliminating dry-pack requirements for assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.5 V - maximum continuous DC or peak AC voltage the device blocks without conduction |
| V(BR) min/max | 9.44–10.4 V @ 1 mA - ensures reliable avalanche initiation before system damage occurs |
| VC @ IPP | 14.4 V @ 208.4 A - limits protected circuit voltage during worst-case 10/1000 µs surge |
| PPP | 3000 W @ 10/1000 µs - delivers industry-standard high-energy transient suppression |
| ID @ VWM | 25 µA - ultra-low leakage preserves battery life and signal integrity in standby |
| TJ range | –55 °C to +150 °C - supports operation in extended-temperature avionics and motor control environments |
| Package | DO-214AB (SMC) - surface-mount footprint compatible with automated PCB assembly |
Pinout & Package
MXLDA3KP8.5CA uses the DO-214AB (SMC) package: void-free UL94V-0 epoxy body, tin-lead or matte-tin plating, 5 g mass, and polarity marked by dot indicating Pin 1 (cathode for unidirectional variants; symmetric terminals for bidirectional MXLDA3KP8.5CA).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (Terminals A & B) | Bidirectional avalanche junction | Provides symmetrical clamping for AC or floating DC lines - no polarity dependency in layout |
| Case / Body | Non-electrical mechanical reference | No internal connection; serves only as thermal path and mounting surface |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables single-device protection of AC-coupled or differential signal paths without polarity concerns |
| 3000 W peak pulse power | Meets IEC61000-4-5 Class 4 surge immunity with 42 Ω source impedance |
| MIL-PRF-19500 upscreening option | Supports high-reliability qualification for aerospace and defense programs requiring lot traceability and 3σ ID screening |
| Moisture Sensitivity Level 1 | Eliminates bake-out prior to reflow, reducing manufacturing cost and risk of delamination |
Applications
| Industrial Motor Drives | Aerospace Avionics Power Rails |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensors against inductive switching spikes in 24 V DC bus systems. IC Role / Device Role / Timing Role: Transient voltage suppressor placed directly across DC input terminals to clamp >1 kV spikes within 5 ns. Use Value: Prevents MOSFET gate oxide rupture and op-amp latch-up by limiting voltage to ≤14.4 V during 208 A surges. | Use Scenario: Secondary lightning surge protection on 28 V aircraft power distribution networks per DO-160 Section 22. IC Role / Device Role / Timing Role: Bidirectional TVS installed at PDB inputs to absorb 42 Ω source impedance Class 4 transients. Use Value: Maintains system uptime by surviving ≥1000 surges at 3000 W without parameter shift or failure. |
| Telecom Base Station RF Front-Ends | Medical Imaging Power Supplies |
Use Scenario: ESD and induced RF protection for antenna couplers and low-noise amplifiers exposed to outdoor environments. IC Role / Device Role / Timing Role: Fast-clamping TVS placed at RF port interfaces to shunt ESD events per IEC61000-4-2 Level 4 (±15 kV contact). Use Value: Preserves RF linearity and noise figure by limiting transient overshoot to <14.4 V with <5 ns response. | Use Scenario: Surge protection for isolated DC-DC converter outputs powering X-ray detector ASICs. IC Role / Device Role / Timing Role: Bidirectional TVS deployed across 12 V output rails to prevent latch-up in radiation-sensitive analog front-ends. Use Value: Ensures patient safety compliance by maintaining ≤25 µA standby leakage and >150 °C operational margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.5CA | 600 W PPP rating, SMB package, 14.4 V VC @ 43.4 A IPP | Lower energy handling - suitable for consumer-grade ESD-only protection, not lightning-class surges | Select SMBJ8.5CA only when system-level surge testing does not exceed IEC61000-4-5 Class 2. |
| 1.5KE8.5CA | Through-hole DO-201 package, 1500 W PPP, 14.4 V VC @ 104.2 A IPP | Lacks surface-mount compatibility and MIL-PRF-19500 upscreening path | Choose 1.5KE8.5CA only for legacy through-hole designs where board real estate and reliability tier are secondary. |
Compared with SMBJ8.5CA and 1.5KE8.5CA, MXLDA3KP8.5CA delivers 2× higher peak pulse power in an SMC package with military-grade screening support - making it the sole option for new designs requiring Class 4 lightning immunity and extended-temperature operation.
Availability
MXLDA3KP8.5CA is available at Aetrix Electronics and suitable for industrial motor drives, aerospace avionics power rails, and telecom base station RF front-ends requiring stable component supply and long-term obsolescence management.
Supply support for MXLDA3KP8.5CA 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 and mixed-signal ICs, RF solutions, and discrete protection devices for aerospace, defense, and industrial markets.
The MDA3KP series was developed to address stringent surge immunity requirements in safety-critical systems - delivering 3000 W TVS performance with MIL-PRF-19500 qualification readiness and extended temperature operation.
FAQ
What is the clamping voltage of MXLDA3KP8.5CA at its rated peak pulse current?
The MXLDA3KP8.5CA has a maximum clamping voltage (VC) of 14.4 V at its rated peak pulse current (IPP) of 208.4 A under 10/1000 µs waveform conditions. This value is guaranteed per the manufacturer's electrical characteristics table and defines the upper voltage limit imposed on protected circuits during worst-case surge events. The MXLDA3KP8.5CA maintains this clamping performance across its full operating temperature range.
Is MXLDA3KP8.5CA unidirectional or bidirectional?
MXLDA3KP8.5CA is a bidirectional transient voltage suppressor, indicated by the "C" suffix in its part number per Microsemi's nomenclature. It provides symmetrical clamping for both positive and negative transients, making it suitable for AC lines, differential signals, or floating DC buses where polarity cannot be assumed. Unlike unidirectional variants (e.g., MXLDA3KP8.5A), the MXLDA3KP8.5CA has no anode/cathode distinction in application.
Does MXLDA3KP8.5CA meet IEC61000-4-5 Class 4 lightning surge requirements?
Yes, MXLDA3KP8.5CA meets IEC61000-4-5 Class 4 secondary lightning surge immunity when tested with a 42 Ω source impedance, as confirmed in the manufacturer's application notes and test data. Its 3000 W peak pulse power rating and 14.4 V clamping voltage enable compliance with the 4 kV open-circuit voltage requirement. MXLDA3KP8.5CA is also validated for Class 4 under 12 Ω and 2 Ω source impedances per documented test configurations.
What package type does MXLDA3KP8.5CA use, and is it RoHS-compliant?
MXLDA3KP8.5CA uses the DO-214AB (SMC) surface-mount package with void-free UL94V-0 epoxy body and matte-tin plating. It is RoHS-compliant, as indicated by the "e3" suffix in the full marking designation. The package supports reflow soldering at 260 °C for 10 seconds and carries IPC/JEDEC J-STD-020B Moisture Sensitivity Level 1 - no dry-pack or baking required prior to assembly.
Can MXLDA3KP8.5CA be used in automotive applications?
MXLDA3KP8.5CA is not AEC-Q200 qualified and lacks automotive-specific qualification documentation. While its –55 °C to +150 °C operating range overlaps with under-hood requirements, Microsemi positions the MDA3KP series for aerospace, industrial, and telecom use - not automotive ECUs or ADAS modules. For automotive applications, designers should verify qualification status directly with Microchip and consider AEC-Q200-certified alternatives unless system-level validation confirms suitability.
MXLDA3KP8.5CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- 16-SMD, Gull Wing
- Series:
- MDA
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 8
- Voltage - Reverse Standoff (Typ):
- 8.5V
- Voltage - Breakdown (Min):
- 9.44V
- Voltage - Clamping (Max) @ Ipp:
- 14.4V
- Current - Peak Pulse (10/1000µs):
- 208.4A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
MXLDA3KP8.5CA FAQ
1.How can I place an order for MXLDA3KP8.5CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP8.5CA 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 MXLDA3KP8.5CA reliable?
The price and inventory of MXLDA3KP8.5CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP8.5CA is usually 5 days.
3.What payment methods are accepted for MXLDA3KP8.5CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP8.5CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLDA3KP8.5CA?
MXLDA3KP8.5CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP8.5CA 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 MXLDA3KP8.5CA?
For technical support, including MXLDA3KP8.5CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP8.5CA requirements.
6.How does Aetrix verify that MXLDA3KP8.5CA is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP8.5CA 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 MXLDA3KP8.5CA meets industry standards.
7.What is the process for return or replacement of MXLDA3KP8.5CA?
All MXLDA3KP8.5CA units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP8.5CA, 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 MXLDA3KP8.5CA part is unused and in its original packaging.
Return procedure for MXLDA3KP8.5CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP8.5CA Tags
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ESD9B5.0ST5G
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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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onsemi
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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