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Microchip Technology MXDA3KP26CAE3
- Part No.:
- MXDA3KP26CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP26CAE3.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:9,015
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Product details
Overview
MXDA3KP26CAE3 from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array in a surface-mount DO-214AB package, featuring 26 V standoff voltage (VWM), 28.9–31.9 V breakdown voltage (V(BR)), 42.1 V clamping voltage (VC) at 71.2 A peak pulse current, and <5 ns response time-designed for secondary lightning protection per IEC61000-4-5 with 12 Ω or 42 Ω source impedance in telecom power interfaces.
For engineers reviewing the MXDA3KP26CAE3 datasheet, MXDA3KP26CAE3 pinout, MXDA3KP26CAE3 application, or MXDA3KP26CAE3 equivalent, key selection criteria include bidirectional polarity, RoHS-compliant matte-tin plating, 150 °C max junction temperature, and verified surge testing per MIL-PRF-19500 screening options.
Technical Context
This TVS array uses silicon avalanche diode technology to clamp transient overvoltages before they damage downstream circuitry. Its bidirectional construction enables symmetrical clamping for AC-coupled or floating signal lines, and its 10/1000 μs waveform rating of 3000 W supports high-energy surge events without degradation.
The device operates across –55 °C to +150 °C, with ≤2 μA standby current at 26 V, and achieves sub-5 ns response time due to low-junction-capacitance design-critical for protecting high-speed Ethernet PHYs, RS-485 transceivers, and PoE-powered edge nodes against ESD (IEC61000-4-2), EFT (IEC61000-4-4), and induced RF transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - maximum continuous operating voltage before clamping initiates; matches 24 V nominal DC power rails with margin. |
| V(BR) min/max | 28.9–31.9 V - guaranteed avalanche onset range at 1 mA; ensures predictable turn-on across temperature and lot variance. |
| VC @ IPP | 42.1 V at 71.2 A - clamped voltage during 10/1000 μs surge; limits stress on protected ICs like PHYs or microcontrollers. |
| PPP | 3000 W - peak pulse power handling capability; sustains IEC61000-4-5 Class 3/4 surges with 12 Ω or 42 Ω source impedance. |
| TJ range | –55 to +150 °C - wide thermal operating envelope suitable for industrial enclosures and outdoor telecom cabinets. |
| Response time | <5 ns - enables effective suppression of fast-rising ESD events before sensitive inputs are overstressed. |
| RoHS | e3 marking - lead-free matte-tin termination compliant with EU RoHS Directive 2011/65/EU. |
Pinout & Package
MXDA3KP26CAE3 is housed in a DO-214AB (SMC) plastic package with void-free UL94V-0 epoxy body, 5 g typical weight, and tin-lead or matte-tin plating per MIL-STD-750 Method 2026. Pin 1 is marked by a dot on top; odd-numbered pins are cathodes per internal dual-diode configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode of first TVS element | Connected to line side of protected interface; forms one half of bidirectional clamping path. |
| Pin 2 | Anode of first TVS element / Cathode of second TVS element | Common node between two back-to-back diodes; establishes center-tap reference for symmetrical clamping. |
| Pin 3 | Anode of second TVS element | Connected to ground or return path; completes bidirectional clamping loop for AC or differential signals. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables symmetrical clamping on AC-coupled lines (e.g., RS-485, Ethernet pairs) without polarity concerns. |
| 3000 W peak pulse power | Withstands IEC61000-4-5 42 Ω source impedance surges up to Class 4 without failure or parameter shift. |
| MIL-PRF-19500 screening option | Supports high-reliability aerospace/defense programs via wafer lot traceability and 3σ ID screening. |
| Moisture sensitivity Level 1 | No dry pack or baking required before reflow-reduces manufacturing overhead and avoids moisture-induced popcorning. |
| Sub-5 ns response time | Clamps ESD transients faster than most interface ICs can respond, preventing latch-up or gate oxide damage. |
Applications
| Industrial Ethernet Switches | Telecom Power Feeds (PoE) |
|---|---|
Use Scenario: Protecting RJ45 magnetics and PHY ICs from lightning-induced surges on outdoor Ethernet drops. IC Role / Device Role / Timing Role: Bidirectional TVS array placed at connector entry point to shunt common-mode transients before reaching isolation transformers. Use Value: Limits clamped voltage to 42.1 V during 71.2 A surges-within absolute maximum ratings of 100BASE-TX and 1000BASE-T PHYs. | Use Scenario: Safeguarding 48 V DC power input stages of IEEE 802.3af/at/bt PD devices against load-dump and hot-swap transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on PSE-side DC feed lines, coordinated with upstream fusing and downstream DC-DC converters. Use Value: Withstands 3000 W surges while maintaining 26 V standoff-preserving PoE classification integrity and avoiding false disconnects. |
| RS-485 Fieldbus Nodes | Outdoor Wireless Access Points |
Use Scenario: Shielding long-haul RS-485 bus transceivers in factory automation against motor-switching noise and ground potential differences. IC Role / Device Role / Timing Role: Differential-line TVS placed adjacent to transceiver I/O pins to suppress both common- and differential-mode transients. Use Value: Sub-5 ns response prevents data corruption during 10/1000 μs transients; bidirectional symmetry maintains signal integrity on half-duplex buses. | Use Scenario: Hardening 5 GHz/2.4 GHz AP front-end power and antenna control lines against nearby lightning strikes and ESD events. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT) primary arresters, absorbing residual energy before LNA or PA stages. Use Value: 42.1 V clamping voltage protects GaAs FET bias networks and CMOS control logic without requiring additional series impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ26CA | 600 W PPP rating, same VWM and bidirectional polarity, DO-214AA package (smaller footprint). | Limited to IEC61000-4-5 Class 2 with 42 Ω source; insufficient for Class 3/4 telecom requirements. | Select when board space is constrained and surge threat level is lower (e.g., indoor LAN endpoints). |
| SMCJ26CA | 1500 W PPP rating, identical DO-214AB package, same VWM and clamping voltage tolerance. | Meets IEC61000-4-5 Class 2/3 with 42 Ω source but fails Class 4; not qualified for MIL-PRF-19500 screening. | Choose for cost-sensitive industrial designs where full 3000 W headroom is unnecessary and reliability screening is not mandated. |
Compared with SMBJ26CA and SMCJ26CA, MXDA3KP26CAE3 delivers 2× and 2× higher peak pulse power respectively, enabling compliance with stringent Class 4 secondary lightning standards and supporting high-reliability screening-making it the only option among the three qualified for aerospace-grade surge protection.
Availability
MXDA3KP26CAE3 is available at Aetrix Electronics and suitable for industrial Ethernet switches, telecom power feeds (PoE), and RS-485 fieldbus nodes requiring stable component supply across extended product lifecycles.
Supply support for MXDA3KP26CAE3 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 specifically for mission-critical surge protection in harsh environments-emphasizing MIL-PRF-19500 screening readiness, wide temperature operation, and repeatable 3000 W transient handling without parameter drift.
FAQ
What does the 'C' suffix in MXDA3KP26CAE3 indicate?
The 'C' suffix denotes bidirectional polarity-meaning MXDA3KP26CAE3 contains two back-to-back avalanche diodes to provide symmetrical clamping for AC-coupled or floating signal lines. This differs from unidirectional variants (e.g., MXDA3KP26AE3), which clamp only in one direction and require correct orientation in-circuit. The bidirectional structure eliminates polarity installation errors in differential interfaces like RS-485 or Ethernet.
Is MXDA3KP26CAE3 RoHS compliant?
Yes, MXDA3KP26CAE3 is RoHS compliant, as confirmed by the 'e3' suffix in the part number and specification in the datasheet. It features annealed matte-tin plating per MIL-STD-750 Method 2026 and meets EU Directive 2011/65/EU requirements. No lead or other restricted substances exceed allowable thresholds, and the device is qualified for lead-free reflow soldering up to 260 °C for 10 seconds.
What is the maximum clamping voltage of MXDA3KP26CAE3 under surge conditions?
The maximum clamping voltage (VC) of MXDA3KP26CAE3 is 42.1 V at 71.2 A peak pulse current under 10/1000 μs waveform conditions. This value is guaranteed across temperature and lot variation, and represents the upper limit of voltage seen by protected circuitry during worst-case surge events-enabling robust design margin for 24 V and 48 V systems.
Can MXDA3KP26CAE3 be used for IEC61000-4-5 Class 4 lightning protection?
Yes, MXDA3KP26CAE3 is rated for IEC61000-4-5 Class 4 secondary lightning protection with both 12 Ω and 42 Ω source impedances, as documented in the Applications/Benefits section of the RF01243 datasheet. Its 3000 W peak pulse power and 42.1 V clamping voltage ensure compliance when implemented with appropriate PCB layout and coordination with upstream protection elements like GDTs.
What package type does MXDA3KP26CAE3 use, and what are its key mechanical features?
MXDA3KP26CAE3 uses the DO-214AB (SMC) surface-mount package: void-free UL94V-0 epoxy body, 5 g typical weight, and matte-tin or tin-lead terminations. Key dimensions include 21.03–22.05 mm length (A), 6.86–7.87 mm width (B), and 8.64–9.65 mm height (C). Pin 1 is marked by a dot, and polarity follows odd-pin cathode convention per the datasheet mechanical drawing.
MXDA3KP26CAE3 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):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 42.1V
- Current - Peak Pulse (10/1000µs):
- 71.2A
- 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:
- -
MXDA3KP26CAE3 FAQ
1.How can I place an order for MXDA3KP26CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP26CAE3 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 MXDA3KP26CAE3 reliable?
The price and inventory of MXDA3KP26CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP26CAE3 is usually 5 days.
3.What payment methods are accepted for MXDA3KP26CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXDA3KP26CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP26CAE3?
MXDA3KP26CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP26CAE3 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 MXDA3KP26CAE3?
For technical support, including MXDA3KP26CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP26CAE3 requirements.
6.How does Aetrix verify that MXDA3KP26CAE3 is sourced from the original manufacturer or authorized distributors?
All MXDA3KP26CAE3 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 MXDA3KP26CAE3 meets industry standards.
7.What is the process for return or replacement of MXDA3KP26CAE3?
All MXDA3KP26CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP26CAE3, 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 MXDA3KP26CAE3 part is unused and in its original packaging.
Return procedure for MXDA3KP26CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXDA3KP26CAE3 Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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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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