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Microchip Technology MXLDA3KP22CA
- Part No.:
- MXLDA3KP22CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP22CA.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:9,340
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Product details
Overview
MXLDA3KP22CA 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 22 V reverse standoff voltage (VWM), 24.4–26.9 V breakdown voltage (V(BR)), 35.5 V maximum clamping voltage at 84.4 A peak pulse current, and operates across –55 °C to +150 °C junction temperature. It protects against IEC61000-4-2 ESD, IEC61000-4-4 EFT, and secondary lightning per IEC61000-4-5 with 2 Ω, 12 Ω, or 42 Ω source impedances.
For engineers reviewing the MXLDA3KP22CA datasheet, MXLDA3KP22CA pinout, MXLDA3KP22CA application, or MXLDA3KP22CA equivalent, this device serves as a RoHS-compliant, surface-mount TVS array optimized for fast-clamping (<5 ns response), high-energy transients in power supply inputs, communication interfaces, and motor drive control circuits where bidirectional polarity and MIL-PRF-19500 upscreening options are required.
Technical Context
The MXLDA3KP22CA implements a monolithic silicon avalanche diode structure configured as a bidirectional TVS pair in a single package. Its clamping action begins at V(BR) min = 24.4 V and limits transient energy to ≤35.5 V at 84.4 A (10/1000 µs waveform), delivering 3000 W peak pulse power capability with <5 ns response time.
It supports secondary lightning protection across Class 1–4 per IEC61000-4-5 under multiple source impedances (2 Ω, 12 Ω, 42 Ω), and includes full lot traceability, 3σ screening on standby current (ID), and surge testing per specification - all aligned with high-reliability vertical mounting requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous DC or peak AC operating voltage before clamping initiates |
| V(BR) min/max | 24.4 V / 26.9 V - Breakdown occurs within this range at 1 mA, defining precise turn-on threshold |
| VC @ IPP | 35.5 V at 84.4 A - Clamping voltage during worst-case 10/1000 µs surge, limiting downstream stress |
| PPP | 3000 W - Peak pulse power handling capacity under standardized 10/1000 µs waveform |
| Response time | <5 ns - Time from 0 V to V(BR) min, enabling effective ESD/EFT suppression |
| TJ range | –55 °C to +150 °C - Full operational junction temperature range for harsh-environment deployment |
| ID @ VWM | 2 µA max - Ultra-low leakage ensures minimal power loss and signal integrity in standby |
Pinout & Package
MXLDA3KP22CA uses a 2-pin surface-mount DO-214AB (SMC) package with cathode-marked pin 1 (dot on top). The device is bidirectional, so both terminals function identically under reverse polarity transients.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (marked) | Reference terminal for polarity identification; bidirectional operation means no functional anode/cathode distinction in circuit use |
| Pin 2 | Anode (unmarked) | Complementary terminal; forms symmetrical clamping path with Pin 1 for AC or bipolar transients |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables symmetric clamping of AC signals and bipolar transients without external polarity management |
| MIL-PRF-19500 upscreening option | Supports high-reliability qualification including lot traceability, 3σ ID screening, and conformance inspection |
| Moisture sensitivity Level 1 | No dry pack or baking required prior to reflow, simplifying SMT assembly and reducing process risk |
| UL94V-0 epoxy body | Self-extinguishing flame-retardant packaging meets safety standards for enclosed industrial equipment |
| RoHS-compliant (e3 marking) | Lead-free matte-tin plating ensures environmental compliance and solderability per MIL-STD-750 Method 2026 |
Applications
| Industrial Power Input Protection | Automotive ECUs |
|---|---|
Use Scenario: 24 V DC power rail in factory automation controllers exposed to load dump and relay switching spikes. IC Role / Device Role / Timing Role: Bidirectional TVS array placed across input terminals to clamp positive/negative surges before they reach DC/DC converters. Use Value: Limits transient voltage to ≤35.5 V at 84.4 A, preventing damage to upstream rectifiers and downstream regulators. | Use Scenario: CAN bus and sensor power lines in engine control units subject to ISO 7637-2 pulses and ESD events. IC Role / Device Role / Timing Role: Primary surge suppression element on 12 V/24 V supply rails feeding microcontrollers and analog front-ends. Use Value: Sub-5 ns response and IEC61000-4-2/4-4 compliance ensure immunity to fast transients without signal distortion. |
| Aerospace Avionics Interfaces | Renewable Energy Inverters |
Use Scenario: Signal and power lines in flight-critical avionics modules requiring MIL-PRF-19500 screening and extended temperature operation. IC Role / Device Role / Timing Role: High-reliability TVS deployed on ARINC 429 data lines and 28 V aircraft bus inputs. Use Value: –55 °C to +150 °C operation and lot traceability support DO-160 Section 22 lightning-induced transient compliance. | Use Scenario: DC link and auxiliary supply rails in solar inverters subjected to grid-switching transients and lightning-induced surges. IC Role / Device Role / Timing Role: Secondary lightning protection per IEC61000-4-5 (42 Ω source) on PV string inputs and isolation barrier supplies. Use Value: 3000 W peak power rating and Class 1–4 coverage enable robust protection without derating in outdoor 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 |
|---|---|---|---|
| SMBJ22CA | 600 W PPP rating, same VWM and bidirectional configuration, DO-214AA package | Limited to lower-energy transients; not rated for Class 4 lightning per IEC61000-4-5 | Select when system-level surge energy is ≤600 W and cost/space constraints favor smaller SMB package |
| 1.5KE22CA | 1500 W PPP, axial-leaded DO-201 package, higher thermal resistance, no MIL-PRF-19500 option | Not suitable for automated SMT assembly or high-reliability screened programs | Choose only for legacy through-hole designs where board real estate and reliability requirements are less stringent |
Compared with SMBJ22CA and 1.5KE22CA, MXLDA3KP22CA delivers double the pulse power handling of the former and triple that of the latter, while supporting surface-mount automation, extended temperature operation, and optional military-grade screening - making it the sole choice for mission-critical 3000 W surge environments.
Availability
MXLDA3KP22CA is available at Aetrix Electronics and suitable for industrial power input protection, automotive ECU design, aerospace avionics interfaces, and renewable energy inverter applications requiring stable component supply and long-term lifecycle assurance.
Supply support for MXLDA3KP22CA 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, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The MDA3KP series was developed to deliver ultra-high-power, surface-mount TVS protection with MIL-PRF-19500 screening capability - targeting applications where failure is not an option, such as flight control systems and critical infrastructure power electronics.
FAQ
What is the clamping voltage of MXLDA3KP22CA at its rated peak pulse current?
The MXLDA3KP22CA has a maximum clamping voltage (VC) of 35.5 V at its rated peak pulse current (IPP) of 84.4 A under the standard 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events. The low clamping ratio (VC/VWM ≈ 1.61) reflects efficient energy diversion without excessive overvoltage stress on downstream components.
Is MXLDA3KP22CA suitable for IEC61000-4-5 secondary lightning protection?
Yes, MXLDA3KP22CA is explicitly rated for secondary lightning protection per IEC61000-4-5 across Class 1–4 with 2 Ω, 12 Ω, and 42 Ω source impedances. Its 3000 W peak pulse power rating and sub-5 ns response time meet the energy and timing requirements for all four classes under specified test conditions. The device's bidirectional architecture ensures consistent performance regardless of surge polarity, making it ideal for AC-coupled or floating systems.
Does MXLDA3KP22CA require moisture-sensitive handling or dry packing before reflow?
No, MXLDA3KP22CA is classified as Moisture Sensitivity Level 1 per IPC/JEDEC J-STD-020B, meaning it has unlimited floor life and does not require dry packing, baking, or special handling prior to reflow soldering. This eliminates process overhead and reduces risk of delamination or popcorning during SMT assembly - a key advantage for high-volume manufacturing of industrial and automotive electronics.
What package type and marking identify MXLDA3KP22CA as bidirectional?
MXLDA3KP22CA uses the DO-214AB (SMC) surface-mount package with a dot marking on the top surface indicating Pin 1 (cathode). The "C" suffix in the part number confirms bidirectional polarity, and the device exhibits symmetrical clamping behavior between both terminals - verified by identical V(BR) min/max (24.4–26.9 V) and VC (35.5 V) specifications in either direction.
Can MXLDA3KP22CA be used in place of unidirectional TVS devices like MDA3KP22A?
No - MXLDA3KP22CA is strictly bidirectional and must not replace unidirectional variants such as MDA3KP22A in DC-only circuits with defined polarity. While both share VWM (22 V) and PPP (3000 W), the unidirectional version clamps only in reverse bias and conducts forward current, whereas MXLDA3KP22CA clamps symmetrically. Substitution would compromise protection in polarized systems and may cause unintended conduction during normal operation.
MXLDA3KP22CA 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):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 84.4A
- 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:
- -
MXLDA3KP22CA FAQ
1.How can I place an order for MXLDA3KP22CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP22CA 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 MXLDA3KP22CA reliable?
The price and inventory of MXLDA3KP22CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP22CA is usually 5 days.
3.What payment methods are accepted for MXLDA3KP22CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP22CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLDA3KP22CA?
MXLDA3KP22CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP22CA 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 MXLDA3KP22CA?
For technical support, including MXLDA3KP22CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP22CA requirements.
6.How does Aetrix verify that MXLDA3KP22CA is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP22CA 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 MXLDA3KP22CA meets industry standards.
7.What is the process for return or replacement of MXLDA3KP22CA?
All MXLDA3KP22CA units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP22CA, 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 MXLDA3KP22CA part is unused and in its original packaging.
Return procedure for MXLDA3KP22CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP22CA Tags
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