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Microchip Technology MXDA3KP7.0A
- Part No.:
- MXDA3KP7.0A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP7.0A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:5,314
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Product details
Overview
MXDA3KP7.0A from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 7.0 V standoff voltage (VWM), 7.78–8.6 V breakdown voltage (V(BR)), and 12.0 V clamping voltage (VC) at 250 A peak pulse current. It provides secondary lightning protection per IEC61000-4-5 (42 Ω, Class 1–4), ESD/EFT suppression per IEC61000-4-2/4-4, and inductive switching transient protection in telecom power interfaces.
For engineers reviewing the MXDA3KP7.0A datasheet, MXDA3KP7.0A pinout, MXDA3KP7.0A application, or MXDA3KP7.0A equivalent, key selection criteria include its 7.0 V VWM rating, 12.0 V VC at 250 A, -55°C to +150°C operating junction temperature, RoHS-compliant e3 marking, and unidirectional polarity confirmed by part nomenclature and pin 1 cathode designation.
Technical Context
The MXDA3KP7.0A operates as a silicon avalanche diode-based TVS array optimized for high-energy transient suppression in DC power rails and signal lines. Its sub-100 ps response time enables effective ESD protection, while its 3000 W peak pulse power rating at 10/1000 µs waveform supports robust surge immunity in industrial and telecom infrastructure.
It features unidirectional polarity with odd-numbered pins designated as cathodes, uses void-free UL94V-0 epoxy packaging, and undergoes 3σ lot norm screening on standby current (ID). Moisture sensitivity level is IPC/JEDEC J-STD-020B Level 1 - no dry pack required.
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 avalanche initiation within tight tolerance for predictable clamping onset |
| VC @ IPP | 12.0 V @ 250 A - limits downstream voltage stress during 10/1000 µs surges to safe levels for 3.3 V/5 V ICs |
| ID @ VWM | 200 µA - low leakage preserves efficiency in battery-backed or low-power monitoring circuits |
| PPP | 3000 W @ 10/1000 µs - delivers MIL-PRF-19500-compatible surge handling for harsh environment deployments |
| TJ range | -55°C to +150°C - supports operation in extended-temperature industrial and automotive under-hood applications |
| RoHS | e3 marking - confirms lead-free matte-tin plating compliant with EU Directive 2011/65/EU |
Pinout & Package
MXDA3KP7.0A uses a 3-pin surface-mount package with cathode-defined polarity: Pin 1 = cathode, Pin 2 = anode, Pin 3 = cathode (dual-channel configuration). Package dimensions: 21.03–22.05 mm length × 6.86–7.87 mm width × 8.64–9.65 mm height (A×B×C per RF01243 Rev B, Page 6).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Channel 1) | Connected to protected line; clamps positive transients to ground when voltage exceeds V(BR) |
| Pin 2 | Anode (Common) | Shared anode node; ties both channels to system ground or return path |
| Pin 3 | Cathode (Channel 2) | Second protected line input; enables dual-rail or differential line protection |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables single-device protection against IEC61000-4-5 Class 4 surges (4 kV, 42 Ω source) without cascaded stages |
| Unidirectional construction | Prevents reverse-bias leakage in DC-coupled power rails while maintaining fast turn-on for positive transients |
| Level 1 moisture sensitivity | Eliminates baking requirements before reflow, reducing manufacturing cost and PCB handling risk |
| MIL-PRF-19500 screening option | Supports high-reliability aerospace and defense programs requiring wafer/lot traceability and 3σ ID screening |
| UL94V-0 epoxy body | Provides flame-retardant mechanical integrity in enclosed power supply enclosures and base station cabinets |
Applications
| Telecom DC Power Input | Industrial PLC I/O Module |
|---|---|
Use Scenario: Protection of +48 V DC power feed entering telecom remote radio units exposed to induced lightning surges. IC Role / Device Role / Timing Role: Primary surge shunt device placed upstream of DC-DC converters and hot-swap controllers. Use Value: Clamps 4 kV/42 Ω surges to ≤12.0 V, preventing latch-up or gate oxide damage in downstream SiC MOSFET drivers. | Use Scenario: Guarding 24 V sensor inputs on programmable logic controller backplanes subject to relay coil flyback and EFT bursts. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp integrated into terminal block PCB layout adjacent to connector entry points. Use Value: Sub-100 ps response captures EFT edges before microcontroller GPIOs enter destructive overvoltage states. |
| Automotive Body Control Module | Medical Imaging Power Supply |
Use Scenario: Safeguarding LIN bus power conditioning circuitry in vehicle door modules subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between fuse output and LDO input to absorb 12 V rail transients. Use Value: 7.0 V VWM matches nominal 12 V system derated for cold-crank; 12.0 V VC prevents LDO dropout during pulse events. | Use Scenario: Shielding high-voltage X-ray generator auxiliary supplies from ESD coupling via front-panel controls and cable harnesses. IC Role / Device Role / Timing Role: Secondary-level transient suppressor mounted directly at power entry connector on isolated HV board. Use Value: Dual-cathode configuration allows independent protection of ±15 V analog bias rails without shared impedance paths. |
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 | 600 W PPP rating, SMA package, 12.5 V VC @ 38.8 A - lower energy handling and smaller footprint | Best suited for low-energy signal-line protection; insufficient for IEC61000-4-5 Class 4 compliance | Select SMAJ7.0A only when board space is constrained and surge threat level is limited to ESD/EFT only. |
| SMCJ7.0A | 1500 W PPP rating, SMC package, 12.0 V VC @ 125 A - half the peak power of MXDA3KP7.0A | Valid for IEC61000-4-5 Class 2 (2 kV) but not Class 4; lacks MIL-PRF-19500 upscreening option | Choose SMCJ7.0A for cost-sensitive industrial designs where full 3000 W capability is not required. |
Compared with SMAJ7.0A and SMCJ7.0A, the MXDA3KP7.0A delivers double the surge energy capacity of the SMCJ variant and five times that of the SMAJ variant - enabling single-stage protection in high-reliability telecom and defense systems where cascaded TVS stages increase BOM cost and PCB area.
Availability
MXDA3KP7.0A is available at Aetrix Electronics and suitable for telecom power input protection, industrial PLC I/O hardening, and automotive body control module surge suppression requiring stable component supply across multi-year production cycles.
Supply support for MXDA3KP7.0A 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 meet MIL-PRF-19500 screening requirements for transient protection in mission-critical power systems, emphasizing surge robustness, thermal stability, and lot-level traceability.
FAQ
What is the clamping voltage of the MXDA3KP7.0A at its rated peak pulse current?
The MXDA3KP7.0A has a maximum clamping voltage (VC) of 12.0 V at 250 A peak pulse current (IPP) under 10/1000 µs waveform conditions. This value is guaranteed per the Electrical Characteristics table on page 3 of RF01243 Rev B and defines the upper voltage limit imposed on protected circuits during worst-case surge events. The MXDA3KP7.0A maintains this clamping performance across its full operating temperature range.
Is the MXDA3KP7.0A unidirectional or bidirectional, and how is polarity identified?
The MXDA3KP7.0A is a unidirectional TVS array, as indicated by the absence of a "C" suffix in its part number. Polarity is defined by pin numbering: odd-numbered pins (1 and 3) are cathodes, and Pin 2 is the common anode. A dot on the top surface of the package marks Pin 1, confirming cathode orientation for correct PCB layout placement.
Does the MXDA3KP7.0A comply with RoHS, and what does the "e3" marking signify?
Yes, the MXDA3KP7.0A is RoHS-compliant, indicated by the "e3" marking on the device body. Per Microsemi's nomenclature guide (page 2 of RF01243 Rev B), "e3" denotes annealed matte-tin plating meeting EU Directive 2011/65/EU requirements. This ensures compatibility with lead-free reflow processes and eliminates hexavalent chromium in surface finish.
What is the maximum standoff voltage (VWM) and why is it critical for MXDA3KP7.0A selection?
The MXDA3KP7.0A has a rated working standoff voltage (VWM) of 7.0 V - the highest continuous DC or peak AC voltage it can block without significant leakage. Selecting a VWM ≥ the circuit's normal operating voltage prevents false triggering while ensuring sufficient margin for ripple and tolerance. For a 5 V rail, MXDA3KP7.0A provides 40% headroom; for 3.3 V, it offers >100% margin, making it suitable for both.
Can the MXDA3KP7.0A be used for IEC61000-4-5 Class 4 lightning surge protection?
Yes, the MXDA3KP7.0A is explicitly rated for IEC61000-4-5 Class 4 secondary lightning protection with 42 Ω source impedance, as stated in the Applications/Benefits section (page 1 of RF01243 Rev B). Its 3000 W peak pulse power and 12.0 V clamping voltage enable it to safely divert 4 kV surges while limiting protected circuit voltage to non-destructive levels - a requirement verified in Microsemi's characterization testing.
MXDA3KP7.0A 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:
- -
MXDA3KP7.0A FAQ
1.How can I place an order for MXDA3KP7.0A through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP7.0A 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 MXDA3KP7.0A reliable?
The price and inventory of MXDA3KP7.0A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP7.0A is usually 5 days.
3.What payment methods are accepted for MXDA3KP7.0A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXDA3KP7.0A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP7.0A?
MXDA3KP7.0A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP7.0A 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 MXDA3KP7.0A?
For technical support, including MXDA3KP7.0A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP7.0A requirements.
6.How does Aetrix verify that MXDA3KP7.0A is sourced from the original manufacturer or authorized distributors?
All MXDA3KP7.0A 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 MXDA3KP7.0A meets industry standards.
7.What is the process for return or replacement of MXDA3KP7.0A?
All MXDA3KP7.0A units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP7.0A, 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 MXDA3KP7.0A part is unused and in its original packaging.
Return procedure for MXDA3KP7.0A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXDA3KP7.0A Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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