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Microchip Technology MXLDA3KP15CAE3
- Part No.:
- MXLDA3KP15CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP15CAE3.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MXLDA3KP15CAE3 from Microsemi is a bidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 15 V standoff voltage (VWM), 16.7–18.5 V breakdown voltage (V(BR)), and 24.4 V maximum clamping voltage (VC) at 123 A peak pulse current. It provides secondary lightning protection per IEC61000-4-5 (42 Ω, 12 Ω, and 2 Ω source impedances), ESD/EFT suppression per IEC61000-4-2/4-4, and inductive switching transient protection in power supply inputs.
For engineers reviewing the MXLDA3KP15CAE3 datasheet, MXLDA3KP15CAE3 pinout, MXLDA3KP15CAE3 application, or MXLDA3KP15CAE3 equivalent, key selection criteria include bidirectional polarity, 15 V working voltage compatibility, 24.4 V clamping performance at 123 A, RoHS-compliant matte-tin plating, and MIL-PRF-19500 upscreening eligibility for high-reliability aerospace and defense systems.
Technical Context
This TVS array uses silicon avalanche diode technology to clamp transient overvoltages within nanoseconds-<5 ns response for bidirectional operation-enabling protection of downstream DC-DC converters, industrial I/O ports, and telecom line cards against fast-rising surges. Its 3000 W peak pulse power rating (10/1000 µs waveform) is validated across -55°C to +150°C junction temperature range.
The device features void-free UL94V-0 thermosetting epoxy packaging, tin-lead or matte-tin terminations compliant with MIL-STD-750 Method 2026, and polarity defined by odd-numbered pins as cathodes. Standby leakage is limited to ≤2 µA at 15 V VWM, supporting low-power system monitoring circuits without loading error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous operating voltage before clamping begins; matches 12 V nominal rail with 25% margin. |
| V(BR) min/max | 16.7–18.5 V - Breakdown occurs within this band at 1 mA test current; ensures reliable turn-on above normal transients. |
| VC @ IPP | 24.4 V at 123 A - Clamping voltage under full 3000 W surge; limits stress on protected ICs like RS-485 transceivers. |
| PPP | 3000 W @ 10/1000 µs - Peak surge handling capacity; supports IEC61000-4-5 Class 4 testing with 42 Ω source impedance. |
| ID @ VWM | ≤2 µA - Ultra-low leakage at rated standoff; avoids signal integrity degradation in high-impedance sensor interfaces. |
| TJ/TSTG | -55°C to +150°C - Extended thermal range enables deployment in under-hood automotive ECUs and outdoor base station power supplies. |
Pinout & Package
MXLDA3KP15CAE3 is housed in a surface-mount vertical package with 3 terminals (pin 1 = cathode, pin 2 = anode, pin 3 = cathode), per standard MDA series mechanical layout. Package dimensions: 21.03–22.05 mm length × 6.86–7.87 mm width × 8.64–9.65 mm height (A×B×C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (TVS1) | Common cathode connection for first TVS element; ties to protected line in bidirectional configuration. |
| Pin 2 | Anode (Center) | Shared anode node between two back-to-back TVS diodes; forms symmetrical clamping path for ± transients. |
| Pin 3 | Cathode (TVS2) | Second cathode terminal; completes bidirectional structure enabling equal clamping for positive and negative surges. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables symmetric ±24.4 V clamping without external polarity routing; simplifies PCB layout for AC-coupled or floating lines. |
| MIL-PRF-19500 upscreening option | Supports high-reliability qualification including lot traceability, 3σ standby current screening, and surge testing-critical for avionics and military comms. |
| UL94V-0 void-free epoxy body | Provides flame resistance and mechanical robustness in harsh environments; eliminates delamination risk during reflow soldering. |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement per J-STD-020B; reduces handling cost and enables direct placement after standard storage. |
Applications
| Industrial PLC Analog Inputs | Telecom Line Card Protection |
|---|---|
Use Scenario: Protecting 4–20 mA current loop inputs from induced RF and switching transients in factory automation cabinets. IC Role / Device Role / Timing Role: Bidirectional TVS clamps both polarities of surge energy before it reaches precision ADC front-end and op-amp conditioning stages. Use Value: 24.4 V clamping at 123 A prevents latch-up or damage to 24 V-powered analog input ICs while maintaining <2 µA leakage. | Use Scenario: Safeguarding RS-485/RS-232 transceivers on telecom line cards exposed to lightning-induced surges on long copper runs. IC Role / Device Role / Timing Role: Fast-response (<5 ns) bidirectional clamping diverts >3 kV transients away from communication PHYs without signal distortion. Use Value: Complies with IEC61000-4-5 Class 4 (42 Ω source) and supports uninterrupted data transmission during surge events. |
| Automotive Body Control Module Power Input | Renewable Energy Inverter DC Link Monitoring |
Use Scenario: Suppressing load-dump and jump-start transients on 12 V battery-fed BCM microcontrollers and CAN transceivers. IC Role / Device Role / Timing Role: TVS absorbs 3000 W pulses with sub-100 ps turn-on, limiting bus voltage to 24.4 V during ISO 7637-2 Pulse 5a events. Use Value: -55°C to +150°C rating ensures reliability in engine bay mounting; RoHS-compliant matte-tin plating withstands automotive reflow profiles. | Use Scenario: Protecting isolated voltage sensors monitoring 400–800 V DC link in solar inverters from switching noise and grid fault coupling. IC Role / Device Role / Timing Role: Bidirectional clamping referenced to mid-rail prevents common-mode overvoltage on differential sensing inputs. Use Value: 15 V VWM aligns with sensor IC supply rails; 2 µA ID avoids measurement offset in high-gain instrumentation amplifiers. |
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 (vs. 3000 W); same 15 V VWM and bidirectional polarity; DO-214AA package. | Limited to lower-energy transients (IEC61000-4-2/4-4 only); unsuitable for IEC61000-4-5 Class 3/4 or lightning-level surges. | Select when space-constrained layouts require smaller footprint and surge requirements are ≤600 W. |
| SMCJ15CA | 1500 W PPP rating; same VWM and bidirectional function; larger DO-214AB package than MXLDA3KP15CAE3 but smaller than MDA's vertical TO-277A. | Meets IEC61000-4-5 Class 2 (42 Ω) but not Class 4; insufficient for high-energy secondary lightning scenarios. | Choose for cost-sensitive industrial controls where 1500 W surge margin suffices and vertical mounting is not required. |
Compared with SMBJ15CA and SMCJ15CA, MXLDA3KP15CAE3 delivers 2× and 2× higher peak pulse power respectively, enabling compliance with stringent IEC61000-4-5 Class 4 immunity testing-critical for infrastructure-grade equipment where single-point failure must be avoided.
Availability
MXLDA3KP15CAE3 is available at Aetrix Electronics and suitable for industrial PLC analog inputs, telecom line card protection, and automotive body control module power inputs requiring stable component supply and long-term lifecycle support.
Supply support for MXLDA3KP15CAE3 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 designed specifically for high-energy transient suppression in mission-critical power and signal interfaces-emphasizing surge robustness, thermal stability, and qualification-ready manufacturing.
FAQ
What is the clamping voltage of MXLDA3KP15CAE3 at its rated peak pulse current?
The MXLDA3KP15CAE3 has a maximum clamping voltage (VC) of 24.4 V at 123 A peak pulse current (IPP), measured under 10/1000 µs waveform conditions. This value ensures protected downstream circuitry-such as RS-485 transceivers or microcontroller I/O-experiences no more than 24.4 V during a full 3000 W transient event. The clamping performance is guaranteed across the full -55°C to +150°C operating junction temperature range.
Is MXLDA3KP15CAE3 RoHS-compliant and what does the 'e3' suffix indicate?
Yes, MXLDA3KP15CAE3 is RoHS-compliant, as confirmed by the 'e3' suffix in its part number per Microsemi's nomenclature guide. The 'e3' designation specifies annealed matte-tin plating on all terminations, fully compliant with EU Directive 2011/65/EU and lead-free assembly requirements. This plating also meets MIL-STD-750 Method 2026 for solderability and corrosion resistance.
How does the bidirectional configuration of MXLDA3KP15CAE3 affect its circuit implementation?
The bidirectional configuration of MXLDA3KP15CAE3-achieved via two back-to-back avalanche diodes sharing a center anode (Pin 2)-allows symmetrical clamping of both positive and negative transients without polarity-dependent placement. This eliminates the need for orientation-aware layout and enables direct integration across AC-coupled lines, floating grounds, or differential buses such as CAN or RS-485, where polarity reversal is possible during fault conditions.
Can MXLDA3KP15CAE3 be used for IEC61000-4-5 Class 4 secondary lightning protection?
Yes, MXLDA3KP15CAE3 is explicitly rated for IEC61000-4-5 Class 4 secondary lightning protection when tested with a 42 Ω source impedance, as documented in the RF01243 datasheet. Its 3000 W peak pulse power rating and 24.4 V clamping voltage at 123 A ensure compliance under the 4 kV/2 kA test profile. For Class 4 with 12 Ω or 2 Ω sources, consult derating curves in Figure 3 due to reduced energy tolerance at higher currents.
What is the maximum standoff voltage and why is it critical for selecting MXLDA3KP15CAE3?
The maximum standoff voltage (VWM) of MXLDA3KP15CAE3 is 15 V-this is the highest continuous DC or peak AC voltage the device tolerates without entering conduction. Selecting a VWM ≥ the system's normal operating voltage (e.g., 12 V nominal rail) prevents false triggering while ensuring headroom for ripple and tolerance. At 15 V VWM, MXLDA3KP15CAE3 provides optimal margin for 12 V systems and avoids excessive clamping voltage rise seen in higher-VWM alternatives.
MXLDA3KP15CAE3 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:
- -
MXLDA3KP15CAE3 FAQ
1.How can I place an order for MXLDA3KP15CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP15CAE3 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 MXLDA3KP15CAE3 reliable?
The price and inventory of MXLDA3KP15CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP15CAE3 is usually 5 days.
3.What payment methods are accepted for MXLDA3KP15CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP15CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLDA3KP15CAE3?
MXLDA3KP15CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP15CAE3 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 MXLDA3KP15CAE3?
For technical support, including MXLDA3KP15CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP15CAE3 requirements.
6.How does Aetrix verify that MXLDA3KP15CAE3 is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP15CAE3 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 MXLDA3KP15CAE3 meets industry standards.
7.What is the process for return or replacement of MXLDA3KP15CAE3?
All MXLDA3KP15CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP15CAE3, 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 MXLDA3KP15CAE3 part is unused and in its original packaging.
Return procedure for MXLDA3KP15CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP15CAE3 Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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