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Microchip Technology MXLDA3KP15CA
- Part No.:
- MXLDA3KP15CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP15CA.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:7,996
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Product details
Overview
MXLDA3KP15CA from Microsemi is a bidirectional 3000 W surface-mount transient voltage suppressor (TVS) array designed for high-reliability secondary lightning and ESD protection in industrial power interfaces. It features a 15 V reverse standoff voltage (VWM), 16.7–18.5 V breakdown voltage (V(BR)), 24.4 V maximum clamping voltage at 123 A peak pulse current, and operates from –55 °C to +150 °C.
For engineers reviewing the MXLDA3KP15CA datasheet, MXLDA3KP15CA pinout, MXLDA3KP15CA application, or MXLDA3KP15CA equivalent, key selection criteria include IEC61000-4-5 Class 1–4 compliance with 42 Ω/12 Ω/2 Ω source impedances, bidirectional polarity, RoHS-compliant e3 matte-tin plating, and UL94V-0 void-free epoxy packaging.
Technical Context
The MXLDA3KP15CA implements a silicon avalanche diode structure optimized for sub-5 ns response time and low clamping ratio (VC/V(BR) ≈ 1.45). Its bidirectional configuration enables symmetrical surge suppression on AC-coupled or floating signal/power lines without polarity constraints.
It is rated for 3000 W peak pulse power at 10/1000 µs waveform, validated per MIL-PRF-19500 screening options, and supports secondary lightning protection across multiple IEC61000-4-5 test configurations - including Class 4 with 12 Ω source impedance and Class 2 with 2 Ω source impedance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous operating voltage before conduction begins; sets minimum system voltage margin for reliable standby operation. |
| V(BR) min/max | 16.7–18.5 V - Confirmed avalanche onset range at 1 mA; ensures predictable turn-on behavior under transient overvoltage. |
| VC @ IPP | 24.4 V at 123 A - Clamping voltage during full-rated 10/1000 µs surge; defines worst-case voltage stress imposed on protected circuitry. |
| PPP | 3000 W - Peak pulse power handling capability at 10/1000 µs; determines survivability against high-energy transients like lightning-induced surges. |
| TJ/TSTG | –55 to +150 °C - Extended junction/storage temperature range; supports deployment in harsh industrial and aerospace environments. |
| ID @ VWM | 2 µA - Ultra-low leakage current at rated standoff voltage; minimizes power loss and avoids false triggering in high-impedance circuits. |
| Polarity | Bidirectional - Enables symmetric protection on AC lines or ungrounded differential buses without external polarity management. |
Pinout & Package
MXLDA3KP15CA uses a 2-pin SMD package with cathode-defined pin 1 marked by a dot on the top surface. Terminals are annealed matte-tin plated (e3 RoHS-compliant) and solderable per MIL-STD-750 Method 2026. The void-free thermosetting epoxy case meets UL94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Bidirectional) | Common terminal for both avalanche paths; connects to line or signal node requiring bidirectional clamping. |
| Pin 2 | Anode (Bidirectional) | Second terminal completing symmetrical conduction path; used in series with protected line or as ground reference point. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables single-device protection of AC-coupled or floating differential signals without polarity biasing components. |
| 3000 W peak pulse power | Supports IEC61000-4-5 Class 4 testing with 12 Ω source impedance and Class 2 with 2 Ω source impedance. |
| Sub-5 ns response time | Clamps transients before downstream ICs experience damaging overvoltage - critical for protecting RS-485, CAN, and Ethernet PHYs. |
| MIL-PRF-19500 screening option | Enables high-reliability qualification for aerospace, defense, and mission-critical industrial systems via wafer lot traceability and 3σ ID screening. |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and floor-life restrictions per IPC/JEDEC J-STD-020B - simplifies manufacturing logistics. |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
Use Scenario: Protection of DC bus inputs in variable-frequency drives exposed to inductive switching spikes and utility grid transients. IC Role / Device Role / Timing Role: Transient voltage suppressor placed across input terminals to clamp surges before they reach rectifier bridges and DC-link capacitors. Use Value: Limits voltage excursion to ≤24.4 V during 123 A 10/1000 µs surges, preventing MOSFET gate oxide rupture and capacitor overvoltage failure. | Use Scenario: Surge protection on -48 V telecom power distribution boards subject to lightning-induced longitudinal surges. IC Role / Device Role / Timing Role: Bidirectional TVS connected between tip/ring and ground to suppress common-mode transients per GR-1089-CORE. Use Value: Maintains <2 µA leakage at nominal -48 V, ensuring no impact on battery backup runtime while clamping 3 kV ring-wave surges. |
| RS-485 Data Lines | Aerospace Avionics Buses |
Use Scenario: Protection of half-duplex RS-485 transceivers in factory automation networks where cable runs act as antennas for EFT and RF coupling. IC Role / Device Role / Timing Role: TVS array placed across A/B differential pair to shunt fast transients while preserving signal integrity up to 10 Mbps. Use Value: Sub-5 ns response prevents data corruption during 4 kV EFT bursts; bidirectional symmetry avoids polarity-dependent installation errors. | Use Scenario: Secondary lightning protection on MIL-STD-1553B data buses in airborne platforms subjected to indirect lightning effects. IC Role / Device Role / Timing Role: High-reliability TVS installed at bus interface connectors to meet DO-160 Section 22 Level 4 requirements with 42 Ω source impedance. Use Value: Validated MIL-PRF-19500 screening ensures zero infant mortality and full lot traceability required for flight-critical subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15CA | 600 W PPP rating, same VWM and bidirectional polarity, but lower clamping voltage (24.4 V vs. 24.4 V identical) and smaller SMB package. | Not qualified to MIL-PRF-19500; lacks high-reliability screening and extended temperature validation. | Select when cost and board space are prioritized over aerospace-grade reliability and 3000 W surge capacity. |
| SMCJ15CA | 1500 W PPP rating, same VWM and bidirectional polarity, larger SMC package, higher thermal mass than MXLDA3KP15CA but lower peak power. | Validated for IEC61000-4-5 Class 3 only with 42 Ω source; insufficient for Class 4 or 2 Ω source impedance tests. | Select when moderate surge immunity suffices and legacy SMC footprint compatibility is required. |
Compared with SMBJ15CA and SMCJ15CA, MXLDA3KP15CA delivers double the peak pulse power of SMCJ15CA and five times that of SMBJ15CA while maintaining identical clamping performance and supporting full IEC61000-4-5 Class 1–4 compliance - making it uniquely suited for high-energy industrial and aerospace surge environments.
Availability
MXLDA3KP15CA is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, RS-485 data lines, and aerospace avionics buses requiring stable component supply and long-term lifecycle support.
Supply support for MXLDA3KP15CA 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 solutions for aerospace, defense, and industrial markets.
The MDA3KP series was developed specifically for high-energy transient suppression in mission-critical systems where MIL-PRF-19500 qualification, wide temperature operation, and guaranteed 3000 W surge handling are mandatory design requirements.
FAQ
What is the clamping voltage of MXLDA3KP15CA at its rated peak pulse current?
The MXLDA3KP15CA has a maximum clamping voltage (VC) of 24.4 V at its rated peak pulse current (IPP) of 123 A under 10/1000 µs waveform conditions. This value is measured per Figure 2 in the official datasheet and represents the worst-case voltage seen by protected circuitry during full-rated surge events.
Is MXLDA3KP15CA RoHS compliant and what plating does it use?
Yes, MXLDA3KP15CA is RoHS compliant (e3 designation), using annealed matte-tin plating on its terminals. This plating meets MIL-STD-750 Method 2026 for solderability and ensures compatibility with lead-free reflow processes up to 260 °C for 10 seconds.
Does MXLDA3KP15CA support IEC61000-4-5 Class 4 testing?
Yes, MXLDA3KP15CA supports IEC61000-4-5 Class 4 testing when configured with a 12 Ω source impedance, as explicitly stated in the Applications/Benefits section of the RF01243 datasheet. It also supports Class 1–3 with 42 Ω and Class 2 with 2 Ω source impedance.
What is the moisture sensitivity level (MSL) of MXLDA3KP15CA and does it require dry packing?
MXLDA3KP15CA has a moisture sensitivity level (MSL) of Level 1 per IPC/JEDEC J-STD-020B, meaning it has unlimited floor life and does not require dry packing or baking prior to assembly - simplifying SMT manufacturing and inventory handling.
How is polarity identified on the MXLDA3KP15CA package?
Polarity on the MXLDA3KP15CA is identified by a dot marking on the top surface of the package indicating pin 1, which is the cathode terminal. As a bidirectional device, both pins serve as symmetrical avalanche paths, but the dot provides consistent orientation reference during placement.
MXLDA3KP15CA 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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 123A
- 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:
- -
MXLDA3KP15CA FAQ
1.How can I place an order for MXLDA3KP15CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP15CA 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 MXLDA3KP15CA reliable?
The price and inventory of MXLDA3KP15CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP15CA is usually 5 days.
3.What payment methods are accepted for MXLDA3KP15CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP15CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLDA3KP15CA?
MXLDA3KP15CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP15CA 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 MXLDA3KP15CA?
For technical support, including MXLDA3KP15CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP15CA requirements.
6.How does Aetrix verify that MXLDA3KP15CA is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP15CA 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 MXLDA3KP15CA meets industry standards.
7.What is the process for return or replacement of MXLDA3KP15CA?
All MXLDA3KP15CA units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP15CA, 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 MXLDA3KP15CA part is unused and in its original packaging.
Return procedure for MXLDA3KP15CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP15CA Tags
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