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Microchip Technology MXLDA3KP28CAE3
- Part No.:
- MXLDA3KP28CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP28CAE3.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,605
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Product details
Overview
MXLDA3KP28CAE3 from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array in a surface-mount DO-214AB package, featuring 28 V standoff voltage (VWM), 31.1–34.4 V breakdown voltage (V(BR)), and 45.4 V maximum clamping voltage (VC) at 66 A peak pulse current. It delivers secondary lightning protection per IEC61000-4-5 with 42 Ω, 12 Ω, and 2 Ω source impedances and is used in telecom power interfaces and industrial Ethernet surge protection.
For engineers reviewing the MXLDA3KP28CAE3 datasheet, MXLDA3KP28CAE3 pinout, MXLDA3KP28CAE3 application, or MXLDA3KP28CAE3 equivalent, key selection criteria include bidirectional polarity, 3000 W 10/1000 µs surge rating, RoHS-compliant matte-tin plating, -55°C to +150°C operating range, and compliance with MIL-PRF-19500 high-reliability screening options.
Technical Context
This TVS array uses silicon avalanche diode technology to clamp transient overvoltages within nanoseconds-<5 ns response for bidirectional operation-enabling protection against ESD (IEC61000-4-2), EFT (IEC61000-4-4), and induced switching transients. Its unidirectional/bidirectional variants are distinguished by part-number suffix (A vs. C), with MXLDA3KP28CAE3 explicitly designated as bidirectional per nomenclature and electrical table.
The device operates across -55°C to +150°C junction temperature, with moisture sensitivity level 1 (no dry pack required), and undergoes 3σ lot norm screening on standby current (ID). All units are surge-tested per specification, and clamping performance is guaranteed up to 3000 W at 10/1000 µs waveform with ≤0.05% duty factor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 28 V - Maximum continuous reverse working voltage before clamping begins; must exceed peak system operating voltage. |
| V(BR) min/max | 31.1–34.4 V @ 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on under transient stress. |
| VC @ IPP | 45.4 V @ 66 A - Clamped voltage during full-rated 10/1000 µs surge; defines worst-case voltage seen by protected circuitry. |
| PPP | 3000 W @ 10/1000 µs - Peak pulse power handling capacity; validates robustness against lightning-induced surges. |
| TJ/TSTG | -55°C to +150°C - Full military-grade temperature range; supports deployment in harsh industrial and aerospace environments. |
| ID @ VWM | 2 µA max - Ultra-low leakage at rated standoff; minimizes power loss and avoids false triggering in high-impedance circuits. |
| RoHS | e3 - Lead-free matte-tin terminal plating compliant with EU RoHS Directive 2011/65/EU. |
Pinout & Package
MXLDA3KP28CAE3 is housed in a DO-214AB (SMC) plastic package with void-free UL94V-0 epoxy body, tin-lead or matte-tin terminals, and polarity marked by a dot indicating Pin 1 (cathode for each TVS element). The device has two terminals: anode and cathode, configured in bidirectional symmetry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Provides low-impedance path to ground or rail during both positive and negative transients. |
| Cathode | Transient return path (bidirectional) | Functions identically to anode in bidirectional configuration; no fixed polarity reference-symmetrical clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables symmetrical clamping for AC-coupled lines and differential buses without polarity constraints. |
| 3000 W 10/1000 µs surge rating | Validated capability to absorb lightning-simulating energy pulses without degradation or failure. |
| MIL-PRF-19500 screening option | Supports high-reliability qualification including wafer/assembly lot traceability and 3σ ID screening. |
| Moisture sensitivity Level 1 | Eliminates baking requirement prior to reflow; compatible with standard SMT assembly processes. |
| Clamping response <5 ns | Ensures protection of fast-edge digital and RF circuits before damage thresholds are exceeded. |
Applications
| Telecom Power Interface | Industrial Ethernet PHY |
|---|---|
Use Scenario: Protecting 48 V DC power feeds in DSLAMs and remote radio units from induced surges and lightning coupling. IC Role / Device Role / Timing Role: Bidirectional TVS array clamping line-to-ground transients on primary DC input rails. Use Value: Limits voltage excursion to ≤45.4 V during 66 A surges, preserving upstream DC-DC converters and PMICs. | Use Scenario: Safeguarding 10/100/1000BASE-T PHY transceivers against ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed across differential pairs and supply rails. Use Value: Sub-5 ns response prevents data corruption and latch-up in gigabit Ethernet controllers. |
| Programmable Logic Controller I/O | Smart Grid RTU Analog Inputs |
Use Scenario: Shielding 24 V digital I/O channels in PLC backplanes from relay coil kickback and field wiring transients. IC Role / Device Role / Timing Role: Standoff-rated TVS shunting inductive spikes to common ground before reaching FPGA or microcontroller GPIO. Use Value: 28 V VWM aligns with 24 V nominal systems while allowing margin for ripple and tolerance drift. | Use Scenario: Securing 4–20 mA analog sensor inputs in remote terminal units exposed to outdoor substations. IC Role / Device Role / Timing Role: Bidirectional clamping on signal and shield lines to suppress coupled surges from nearby fault currents. Use Value: 3000 W rating meets IEC61000-4-5 Class 3 (12 Ω source) requirements for smart grid infrastructure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ28CA | 600 W PPP rating, SMB package, same VWM and bidirectional polarity | Limited to lower-energy transients; unsuitable for IEC61000-4-5 Class 3/4 lightning testing | Select when board space is constrained and surge threat level is ESD/EFT only. |
| SMCJ28CA | 1500 W PPP rating, same DO-214AB package, identical VWM and VC | Half the energy absorption of MXLDA3KP28CAE3; fails Class 4 lightning test at 42 Ω source | Choose for cost-sensitive industrial designs where 3000 W is not mandated by end-equipment standards. |
Compared with SMBJ28CA and SMCJ28CA, MXLDA3KP28CAE3 provides double the surge energy handling of SMCJ28CA and five times that of SMBJ28CA-enabling compliance with stringent secondary lightning immunity requirements in telecom and utility infrastructure.
Availability
MXLDA3KP28CAE3 is available at Aetrix Electronics and suitable for telecom power interface protection, industrial Ethernet PHY safeguarding, and programmable logic controller I/O conditioning requiring stable component supply across extended production lifecycles.
Supply support for MXLDA3KP28CAE3 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 infrastructure-emphasizing MIL-PRF-19500 screening readiness, wide temperature operation, and validated IEC61000-4-5 compliance.
FAQ
What is the clamping voltage of MXLDA3KP28CAE3 at its rated peak pulse current?
The MXLDA3KP28CAE3 has a maximum clamping voltage (VC) of 45.4 V at 66 A peak pulse current (IPP) under 10/1000 µs waveform conditions. This value is measured per Figure 2 in the official datasheet and defines the upper voltage limit imposed on protected circuitry during full-rated surge events. The clamping behavior remains consistent across the full -55°C to +150°C operating range.
Is MXLDA3KP28CAE3 RoHS-compliant and what does the 'e3' suffix indicate?
Yes, MXLDA3KP28CAE3 is RoHS-compliant, as confirmed by the 'e3' suffix in its part number. Per Microsemi's nomenclature guide, 'e3' denotes matte-tin terminal plating meeting EU Directive 2011/65/EU. The device contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits, and is qualified for lead-free reflow soldering up to 260°C for 10 seconds.
How does the bidirectional configuration of MXLDA3KP28CAE3 affect its use in AC-coupled signal paths?
The bidirectional configuration of MXLDA3KP28CAE3 allows symmetrical clamping for both positive and negative transients without requiring external polarity alignment. In AC-coupled signal paths-such as RS-485, CAN FD, or Ethernet differential pairs-it protects both conductors equally, eliminating the need for dual unidirectional devices. This simplifies layout and ensures balanced ESD immunity across the entire signal swing.
Can MXLDA3KP28CAE3 be used for IEC61000-4-5 Class 4 lightning protection with a 42 Ω source impedance?
No, MXLDA3KP28CAE3 is not rated for IEC61000-4-5 Class 4 with 42 Ω source impedance. Per the official datasheet (Page 1, Applications/Benefits section), Class 4 at 42 Ω applies only to MDA3KP6.0CA through MDA3KP18CA. MXLDA3KP28CAE3 supports Class 1–4 at 42 Ω only up to 18 V VWM; at 28 V, it is certified for Class 1–3 with 42 Ω, and Class 2–3 with 12 Ω.
What is the standoff voltage (VWM) and why is it critical for selecting MXLDA3KP28CAE3?
The standoff voltage (VWM) of MXLDA3KP28CAE3 is 28 V-the maximum continuous DC or peak AC voltage the device tolerates without entering conduction. It is critical because VWM must exceed the system's maximum normal operating voltage (including ripple, tolerance, and transients) to prevent leakage or premature clamping. Selecting a VWM too close to operating voltage risks false triggering; MXLDA3KP28CAE3's 28 V rating provides safe margin for 24 V industrial systems.
MXLDA3KP28CAE3 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):
- 28V
- Voltage - Breakdown (Min):
- 31.1V
- Voltage - Clamping (Max) @ Ipp:
- 45.4V
- Current - Peak Pulse (10/1000µs):
- 66A
- 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:
- -
MXLDA3KP28CAE3 FAQ
1.How can I place an order for MXLDA3KP28CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP28CAE3 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 MXLDA3KP28CAE3 reliable?
The price and inventory of MXLDA3KP28CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP28CAE3 is usually 5 days.
3.What payment methods are accepted for MXLDA3KP28CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP28CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLDA3KP28CAE3?
MXLDA3KP28CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP28CAE3 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 MXLDA3KP28CAE3?
For technical support, including MXLDA3KP28CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP28CAE3 requirements.
6.How does Aetrix verify that MXLDA3KP28CAE3 is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP28CAE3 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 MXLDA3KP28CAE3 meets industry standards.
7.What is the process for return or replacement of MXLDA3KP28CAE3?
All MXLDA3KP28CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP28CAE3, 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 MXLDA3KP28CAE3 part is unused and in its original packaging.
Return procedure for MXLDA3KP28CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP28CAE3 Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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