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Microchip Technology MXLDA3KP7.0A
- Part No.:
- MXLDA3KP7.0A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP7.0A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:9,887
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Product details
Overview
MXLDA3KP7.0A from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array designed for high-reliability secondary lightning and ESD protection in power supply inputs and communication interfaces. It features a 7.0 V reverse standoff voltage (VWM), 7.78–8.6 V breakdown voltage (V(BR)), 12.0 V maximum clamping voltage at 250 A peak pulse current, and operates across –55 °C to +150 °C junction temperature.
For engineers reviewing the MXLDA3KP7.0A datasheet, MXLDA3KP7.0A pinout, MXLDA3KP7.0A application, or MXLDA3KP7.0A equivalent, key selection criteria include clamping performance under 10/1000 µs surge, standoff voltage margin relative to DC bus rails, thermal derating above 25 °C, and compatibility with IPC/JEDEC J-STD-020B Level 1 moisture sensitivity handling.
Technical Context
The MXLDA3KP7.0A functions as a fast-response, high-energy crowbar device that enters avalanche conduction when transient voltage exceeds its V(BR) threshold, limiting downstream voltage to ≤12.0 V at 250 A. Its <100 ps response time enables effective suppression of ESD per IEC61000-4-2 and EFT per IEC61000-4-4.
It is rated for 3000 W peak pulse power at 10/1000 µs waveform, supports secondary lightning protection per IEC61000-4-5 with 42 Ω, 12 Ω, and 2 Ω source impedances (Class 1–4 depending on impedance), and undergoes 3σ lot norm screening on standby current (ID ≤ 200 µA @ VWM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous DC or peak AC voltage the device blocks without conduction. |
| V(BR) min/max | 7.78–8.6 V @ 10 mA - Ensures reliable turn-on before system overvoltage damage occurs. |
| VC @ IPP | 12.0 V @ 250 A - Clamped voltage during worst-case 10/1000 µs surge; defines protected circuit's max stress level. |
| IPP | 250 A - Peak surge current capability at 10/1000 µs; determines survivability against defined lightning transients. |
| ID @ VWM | ≤200 µA - Low leakage ensures minimal power loss and no false triggering in standby operation. |
| TJ range | –55 °C to +150 °C - Enables deployment in automotive engine bays, industrial motor drives, and outdoor telecom equipment. |
| Moisture Sensitivity | Level 1 per J-STD-020B - No dry pack or bake-out required prior to reflow soldering. |
Pinout & Package
MXLDA3KP7.0A uses a 3-pin SMD package with void-free thermosetting epoxy body (UL94V-0), tin-lead or matte-tin plating, and polarity defined by dot marking indicating Pin 1. Odd-numbered pins are cathodes per TVS element.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode of Channel 1 | Connected to protected line (e.g., VBUS); conducts to ground during overvoltage event. |
| Pin 2 | Anode (Common Ground) | Shared low-impedance return path for all TVS channels; must be routed with minimal inductance. |
| Pin 3 | Cathode of Channel 2 | Second protected line (e.g., signal pair or dual-rail input); independent clamping action per channel. |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse rating | Enables robust protection against IEC61000-4-5 Class 4 surges (42 Ω source) without degradation over multiple events. |
| Unidirectional construction | Optimized for DC-biased lines like power rails and RS-485 buses where reverse conduction must be blocked. |
| High-reliability screening | Wafer and assembly lot traceability plus MIL-PRF-19500 optional upscreening support aerospace and defense qualification requirements. |
| Low clamping ratio (VC/VWM = 1.71) | Minimizes voltage overshoot during clamping, reducing stress on downstream ICs such as USB controllers or PMICs. |
| 100% surge tested | Each unit validated to withstand full-rated 10/1000 µs pulse, ensuring field reliability in harsh electrical environments. |
Applications
| Industrial Power Input Protection | Automotive Body Control Module (BCM) Inputs |
|---|---|
Use Scenario: 24 V DC power feed to PLC I/O modules exposed to load dump and relay coil flyback. IC Role / Device Role / Timing Role: Primary overvoltage crowbar protecting DC-DC converter input stage and microcontroller supply rails. Use Value: Limits transient voltage to ≤12.0 V during 250 A surge, preventing latch-up or permanent damage to 3.3 V/5 V logic supplies. | Use Scenario: LIN bus and sensor power lines in BCM subjected to ISO 7637-2 Pulse 1, 2a, and 5a. IC Role / Device Role / Timing Role: Unidirectional TVS array clamping induced spikes on 12 V supply and LIN signal lines simultaneously. Use Value: Meets AEC-Q101 stress requirements while maintaining <200 µA leakage to avoid battery drain in sleep mode. |
| Telecom AC/DC Front-End Protection | Medical Equipment ESD-Sensitive Interfaces |
Use Scenario: Secondary-side 48 V DC output of telecom rectifiers exposed to lightning-induced surges on building wiring. IC Role / Device Role / Timing Role: Final-stage transient suppressor before PoE injectors and Ethernet PHYs. Use Value: Delivers 3000 W surge handling with 12.0 V clamping, enabling compliance with IEC61000-4-5 Level 4 (4 kV) testing. | Use Scenario: USB 2.0 and analog sensor inputs on patient monitors requiring IEC60601-1-2 ESD immunity. IC Role / Device Role / Timing Role: Fast-response (<100 ps) unidirectional clamp on data and power lines entering isolated domains. Use Value: Achieves >15 kV contact ESD protection (IEC61000-4-2) without signal distortion or ground bounce due to low capacitance design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.0A | Lower PPP rating (400 W), smaller SMA package, higher VC (12.5 V @ 32.4 A) | Not suitable for IEC61000-4-5 Class 3/4; limited to board-level ESD/EFT only | Select SMAJ7.0A only for space-constrained, low-energy applications where 3000 W surge immunity is not required. |
| SMCJ7.0A | Same 3000 W rating but larger SMC package, slightly higher VC (12.3 V @ 243 A), no MIL-PRF-19500 screening option | Lacks high-reliability upscreening path; unsuitable for defense/aerospace deployments | Choose SMCJ7.0A when cost and standard industrial reliability are prioritized over extended qualification and traceability. |
Compared with SMAJ7.0A and SMCJ7.0A, the MXLDA3KP7.0A delivers identical 7.0 V standoff and superior clamping (12.0 V vs. ≥12.3 V), while offering MIL-PRF-19500 upscreening and guaranteed 3000 W performance in a compact 3-pin SMD layout optimized for dual-line protection.
Availability
MXLDA3KP7.0A is available at Aetrix Electronics and suitable for industrial power input protection, automotive BCM interfaces, and telecom front-end surge suppression requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MXLDA3KP7.0A 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 to deliver military-grade transient suppression in surface-mount form, targeting applications demanding certified reliability, surge survivability, and compliance with IEC61000-4-5 and MIL-STD-1275.
FAQ
What is the clamping voltage of MXLDA3KP7.0A at its rated peak pulse current?
The MXLDA3KP7.0A has a maximum clamping voltage (VC) of 12.0 V at its rated peak pulse current (IPP) of 250 A under 10/1000 µs waveform conditions. This value is measured per Figure 2 in the RF01243 datasheet and defines the upper voltage limit imposed on protected circuits during surge events. The low clamping ratio (VC/VWM ≈ 1.71) ensures minimal overvoltage stress on downstream components such as DC-DC converters and microcontrollers.
Is MXLDA3KP7.0A RoHS compliant?
Yes, MXLDA3KP7.0A is RoHS compliant, indicated by the "e3" suffix in its full part marking per the nomenclature on page 2 of RF01243 Rev B. The device uses annealed matte-tin plating and void-free thermosetting epoxy packaging meeting UL94V-0, with no lead exemptions required. Compliance is verified per EU Directive 2011/65/EU and aligns with Microsemi's transition to lead-free manufacturing processes post-acquisition by Microchip.
Can MXLDA3KP7.0A be used for bidirectional signal line protection?
No, MXLDA3KP7.0A is unidirectional and intended only for DC-biased lines such as power rails and single-ended digital buses. For bidirectional signal protection (e.g., RS-485, CAN, or USB D+/D−), the bidirectional variant MDA3KP7.0CA must be used. Using MXLDA3KP7.0A on AC-coupled or symmetric signal paths risks forward conduction during negative transients, compromising protection integrity and potentially damaging the device.
What is the maximum operating temperature range for MXLDA3KP7.0A?
The MXLDA3KP7.0A is rated for junction and storage temperatures from –55 °C to +150 °C, as specified in the Maximum Ratings table on page 2 of RF01243 Rev B. This wide range supports deployment in under-hood automotive systems, industrial motor controls, and outdoor telecom enclosures. Derating of peak pulse power begins above 25 °C per Figure 3, reaching ~50% capacity at +125 °C ambient with proper PCB copper area.
Does MXLDA3KP7.0A require special handling for moisture sensitivity?
No, MXLDA3KP7.0A is classified as Moisture Sensitivity Level 1 per IPC/JEDEC J-STD-020B, meaning it may be stored indefinitely at ≤30 °C/60% RH and requires no dry pack, baking, or floor life tracking before reflow soldering. This eliminates process overhead in high-volume manufacturing and supports standard SMT assembly flows without modification.
MXLDA3KP7.0A 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):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 250A
- 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:
- -
MXLDA3KP7.0A FAQ
1.How can I place an order for MXLDA3KP7.0A through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP7.0A 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 MXLDA3KP7.0A reliable?
The price and inventory of MXLDA3KP7.0A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP7.0A is usually 5 days.
3.What payment methods are accepted for MXLDA3KP7.0A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP7.0A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLDA3KP7.0A?
MXLDA3KP7.0A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP7.0A 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 MXLDA3KP7.0A?
For technical support, including MXLDA3KP7.0A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP7.0A requirements.
6.How does Aetrix verify that MXLDA3KP7.0A is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP7.0A 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 MXLDA3KP7.0A meets industry standards.
7.What is the process for return or replacement of MXLDA3KP7.0A?
All MXLDA3KP7.0A units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP7.0A, 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 MXLDA3KP7.0A part is unused and in its original packaging.
Return procedure for MXLDA3KP7.0A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP7.0A Tags
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