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Microchip Technology MXDA3KP14A
- Part No.:
- MXDA3KP14A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP14A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:6,506
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Product details
Overview
MXDA3KP14A from Microsemi is a unidirectional 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 14 V reverse standoff voltage (VWM), 15.6–17.2 V breakdown voltage (V(BR)), 23.2 V maximum clamping voltage at 129.4 A peak pulse current, and operates from −55 °C to +150 °C. It is used in AC/DC front-end surge protection circuits.
For engineers reviewing the MXDA3KP14A datasheet, MXDA3KP14A pinout, MXDA3KP14A application, or MXDA3KP14A equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD, IEC61000-4-5 Class 1–4 compliance with 2/12/42 Ω source impedance, thermal derating above 25 °C, and RoHS-compliant matte-tin termination compatibility with lead-free reflow.
Technical Context
The MXDA3KP14A implements a silicon avalanche diode structure optimized for sub-100 ps response time and low dynamic impedance under 10/1000 μs surge conditions. Its unidirectional polarity enables DC-biased line protection without reverse leakage concerns beyond 2 μA at 14 V.
It meets MIL-PRF-19500 screening options for high-reliability applications and is rated for 3000 W peak pulse power per IEC61000-4-5 with full lot traceability, 3σ standby current screening, and moisture sensitivity level 1 (no dry pack required).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum continuous DC or peak AC voltage applied without triggering conduction |
| V(BR) min/max | 15.6–17.2 V @ 1 mA - Ensures reliable turn-on before protected circuit reaches destructive overvoltage |
| VC @ IPP | 23.2 V @ 129.4 A - Clamped voltage seen by downstream components during worst-case 10/1000 μs surge |
| IPP | 129.4 A - Peak surge current capability at 10/1000 μs waveform, defining minimum system-level surge withstand |
| ID @ VWM | 2 μA - Ultra-low leakage ensures minimal power loss and no false triggering in standby |
| TJ/TSTG | −55 °C to +150 °C - Enables deployment in harsh environments including motor drives and outdoor power supplies |
Pinout & Package
MXDA3KP14A uses a 3-pin SMD package with cathode-defined pin numbering: Pin 1 = Cathode of Channel 1, Pin 2 = Anode (common), Pin 3 = Cathode of Channel 2. The void-free UL94V-0 epoxy body measures 21.03 × 6.86 × 8.64 mm (L × W × H) with matte-tin terminations solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Channel 1) | Connected to protected line; conducts surge current to common anode when VLINE exceeds V(BR) |
| Pin 2 | Anode (Common) | Reference node tied to system ground or return path; carries total surge current from both channels |
| Pin 3 | Cathode (Channel 2) | Second protected line input; enables dual-line (e.g., L/N or IN+/IN−) differential or independent clamping |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse rating | Supports IEC61000-4-5 Class 4 testing with 42 Ω source impedance without degradation |
| Sub-100 ps response time | Clamps ESD transients (IEC61000-4-2) before sensitive logic or analog inputs are damaged |
| MIL-PRF-19500 screening option | Enables use in aerospace, defense, and critical infrastructure where wafer/lot traceability is mandated |
| Moisture Level 1 rating | Eliminates bake-out requirement prior to reflow, reducing manufacturing cost and cycle time |
Applications
| AC/DC Power Input Protection | Industrial Motor Drive Control |
|---|---|
Use Scenario: Surge protection on 12–24 V DC input rails of programmable logic controllers (PLCs) exposed to inductive switching noise and nearby lightning strikes. IC Role / Device Role / Timing Role: Unidirectional TVS array clamping positive transients on power lines while blocking reverse conduction. Use Value: Limits voltage excursion to ≤23.2 V during 129.4 A surges, preventing latch-up or gate oxide damage in upstream DC-DC converters. | Use Scenario: Protection of encoder feedback lines (A/B/Z) in servo drives operating in factory-floor EMI environments. IC Role / Device Role / Timing Role: Dual-channel clamping device suppressing coupled RF and EFT bursts on differential signal pairs. Use Value: Maintains signal integrity by clamping transients within 5 ns, avoiding false edge detection in quadrature decoding circuits. |
| Telecom Power Feeds | Renewable Energy Inverters |
Use Scenario: Secondary surge protection on −48 V DC telecom rectifier outputs feeding remote radio units. IC Role / Device Role / Timing Role: High-energy unidirectional suppressor absorbing induced surges from nearby power cables or antenna coupling. Use Value: Withstands repeated 10/1000 μs surges up to 3000 W without parameter shift, ensuring long-term reliability in 24/7 base station operation. | Use Scenario: DC-link surge suppression in solar string inverters subjected to grid-switching transients and partial lightning coupling. IC Role / Device Role / Timing Role: Front-end TVS array limiting overvoltage on MPPT controller inputs during rapid PV string disconnection events. Use Value: 14 V VWM aligns with 12 V auxiliary supply rails, enabling direct integration without voltage divider networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ14A | 600 W rating, 200 VBR min, 23.2 VC @ 25.5 A - lower energy handling | Not suitable for IEC61000-4-5 Class 3/4; limited to ESD/EFT-only zones | Select SMBJ14A only for space-constrained, low-energy signal-line protection where 3000 W capability is unnecessary. |
| SMCJ14A | 1500 W rating, same VWM/VC, 64.5 A IPP - half the surge capacity of MXDA3KP14A | Meets Class 1–2 IEC61000-4-5 but fails Class 3 at 12 Ω source impedance | Choose SMCJ14A for cost-sensitive industrial controls where full 3000 W compliance is not mandated by end-equipment standards. |
Compared with SMBJ14A and SMCJ14A, MXDA3KP14A delivers 2× and 1.9× higher peak pulse current respectively, enabling single-device compliance with IEC61000-4-5 Class 4 at 42 Ω - critical for mains-connected equipment requiring highest immunity levels without external crowbar circuits.
Availability
MXDA3KP14A is available at Aetrix Electronics and suitable for AC/DC power input protection, industrial motor drive control, and renewable energy inverter designs requiring stable component supply across extended production lifecycles.
Supply support for MXDA3KP14A 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 engineered for mission-critical surge protection in harsh-environment power systems, emphasizing parametric stability, lot traceability, and compliance with MIL-PRF-19500 screening requirements.
FAQ
What is the clamping voltage of MXDA3KP14A under maximum surge conditions?
The MXDA3KP14A exhibits a maximum clamping voltage (VC) of 23.2 V when subjected to its rated peak pulse current of 129.4 A under 10/1000 μs waveform conditions. This value is guaranteed across temperature and lifetime, ensuring predictable overvoltage limiting for downstream components such as DC-DC controllers or microcontrollers in the protected circuit. The MXDA3KP14A maintains this clamping performance without degradation after multiple surge events within specification limits.
Is MXDA3KP14A RoHS compliant?
Yes, MXDA3KP14A is RoHS compliant, indicated by the "e3" suffix in its full marking per Microsemi's nomenclature guide. It uses annealed matte-tin plating on terminations and void-free UL94V-0 epoxy packaging, meeting EU Directive 2011/65/EU requirements. No lead or other restricted substances exceed threshold limits, and the device is qualified for lead-free reflow soldering up to 260 °C for 10 seconds.
Can MXDA3KP14A be used for bidirectional protection?
No, MXDA3KP14A is unidirectional only, as confirmed by its part number suffix "A" (blank = unidirectional; "C" = bidirectional). It conducts surge current only when the cathode-side voltage exceeds the anode by ≥15.6 V. For bidirectional AC line protection, the equivalent part is MXDA3KP14CA. Using MXDA3KP14A on AC signals risks reverse breakdown and permanent damage due to lack of symmetrical clamping.
What is the standoff voltage rating of MXDA3KP14A?
The MXDA3KP14A has a rated reverse standoff voltage (VWM) of 14 V, meaning it remains non-conductive up to this DC or peak AC voltage across its terminals at 25 °C. This allows safe integration into 12 V nominal systems with headroom for ripple and tolerance. At temperatures above 25 °C, VWM derates per Figure 3 in the datasheet, requiring design margin adjustment for high-ambient applications like enclosed motor drives.
Does MXDA3KP14A require special handling for moisture sensitivity?
No, MXDA3KP14A is rated IPC/JEDEC J-STD-020B Moisture Sensitivity Level 1, meaning it has unlimited floor life and requires no dry pack or baking prior to reflow soldering. Its thermosetting epoxy body prevents moisture ingress, eliminating yield loss from popcorning during lead-free reflow. This simplifies manufacturing logistics and reduces assembly cost compared to higher-MSL discrete TVS devices.
MXDA3KP14A 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:
- 8
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 23.2V
- Current - Peak Pulse (10/1000µs):
- 129.4A
- 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:
- -
MXDA3KP14A FAQ
1.How can I place an order for MXDA3KP14A through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP14A 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 MXDA3KP14A reliable?
The price and inventory of MXDA3KP14A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP14A is usually 5 days.
3.What payment methods are accepted for MXDA3KP14A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXDA3KP14A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP14A?
MXDA3KP14A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP14A 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 MXDA3KP14A?
For technical support, including MXDA3KP14A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP14A requirements.
6.How does Aetrix verify that MXDA3KP14A is sourced from the original manufacturer or authorized distributors?
All MXDA3KP14A 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 MXDA3KP14A meets industry standards.
7.What is the process for return or replacement of MXDA3KP14A?
All MXDA3KP14A units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP14A, 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 MXDA3KP14A part is unused and in its original packaging.
Return procedure for MXDA3KP14A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXDA3KP14A Tags
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