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Microchip Technology MDA3KP7.0A
- Part No.:
- MDA3KP7.0A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP7.0A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,265
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Product details
Overview
MDA3KP7.0A from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array designed for high-reliability overvoltage protection in power rails and signal lines. 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 MDA3KP7.0A datasheet, MDA3KP7.0A pinout, MDA3KP7.0A application, or MDA3KP7.0A equivalent, key selection criteria include IEC61000-4-2/4-4/4-5 compliance, 10/1000 µs surge capability, standoff-clamp margin, thermal derating behavior, and MIL-PRF-19500 upscreening eligibility for aerospace and defense systems.
Technical Context
The MDA3KP7.0A is a single-channel, unidirectional TVS diode optimized for fast clamping of high-energy transients with <100 ps response time. Its silicon avalanche structure delivers precise breakdown at 7.78–8.6 V under 10 mA test current and limits voltage to ≤12.0 V at 250 A (10/1000 µs waveform).
It supports secondary lightning protection per IEC61000-4-5 at Class 1–4 with 42 Ω source impedance and Class 1–3 with 12 Ω, while maintaining ≤200 µA standby current at 7.0 V and full operation across –55 °C to +150 °C.
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 above operating rail, preventing premature clamping |
| VC @ IPP | 12.0 V @ 250 A - Clamped voltage during worst-case 10/1000 µs surge, defining protected circuit stress level |
| PPP | 3000 W @ 10/1000 µs - Peak power handling capacity, directly tied to surge immunity class rating |
| ID @ VWM | ≤200 µA - Low leakage preserves system efficiency and battery life in always-on circuits |
| TJ range | –55 °C to +150 °C - Enables deployment in under-hood automotive, industrial motor drives, and avionics |
Pinout & Package
MDA3KP7.0A uses a 2-pin SMC (DO-214AB) surface-mount package with void-free UL94V-0 epoxy body, matte-tin terminations, and polarity defined by a dot marking indicating Pin 1 as cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line; conducts during overvoltage to shunt current to ground |
| Pin 2 | Anode | Typically tied to system ground or low-impedance return path for transient current dissipation |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables compliance with IEC61000-4-5 Class 4 (42 Ω source) and robust EFT/ESD suppression without derating |
| Unidirectional construction | Prevents reverse-bias leakage on DC-powered lines while allowing forward conduction only during fault events |
| MIL-PRF-19500 screening option | Supports high-reliability qualification for aerospace, military, and critical infrastructure applications |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints, simplifying SMT assembly logistics |
Applications
| Industrial Motor Drives | Automotive Power Distribution |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller supply rails against inductive kickback from relay coils and solenoids. IC Role / Device Role / Timing Role: TVS device clamps voltage spikes within 100 ps to prevent latch-up or permanent damage to downstream ICs. Use Value: Maintains 12.0 V clamping at 250 A ensures MOSFET gate oxide and MCU I/O remain below absolute maximum ratings during 10/1000 µs surges. | Use Scenario: Guarding LIN bus transceivers and sensor inputs against load dump and jump-start transients in 12 V vehicle networks. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VCC rail and ground to absorb positive-going surges while blocking reverse leakage. Use Value: 7.0 V VWM aligns with nominal 12 V system derated for cold-crank; 200 µA ID avoids battery drain in sleep mode. |
| Telecom Base Station Power | Aerospace Avionics Interfaces |
Use Scenario: Safeguarding 48 V DC-DC converter outputs feeding RF amplifiers and FPGAs from lightning-induced surges on outdoor feeder lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on intermediate distribution rail, coordinated with upstream MOVs and downstream ceramic filters. Use Value: 3000 W rating enables single-device coverage of IEC61000-4-5 Level 4 (4 kV, 42 Ω), reducing BOM count and layout area. | Use Scenario: Protecting ARINC 429 receivers and discrete discrete input conditioners in flight control computers exposed to HIRF and lightning coupling. IC Role / Device Role / Timing Role: High-reliability TVS deployed on all discrete digital inputs per DO-160 Section 22 requirements. Use Value: MIL-PRF-19500 upscreening option provides lot traceability, wafer-level screening, and extended temperature validation required for FAA certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A | 600 W PPP rating, same VWM and V(BR), SMC-compatible but smaller SMB package | Limited to IEC61000-4-5 Class 2 (42 Ω); insufficient for Class 4 surge testing | Select when space-constrained and peak surge energy is ≤600 W |
| SMCJ7.0A | 1500 W PPP, identical VWM/V(BR)/VC, same SMC package footprint | Meets Class 3 (42 Ω) but fails Class 4; lower thermal mass reduces sustained surge endurance | Choose where cost sensitivity outweighs need for full 3000 W immunity |
Compared with SMBJ7.0A and SMCJ7.0A, the MDA3KP7.0A delivers double the peak pulse power of SMCJ7.0A and five times that of SMBJ7.0A-enabling single-device compliance with IEC61000-4-5 Class 4 at 42 Ω, critical for infrastructure-grade surge immunity without parallel stacking.
Availability
MDA3KP7.0A is available at Aetrix Electronics and suitable for industrial motor drives, automotive power distribution, telecom base station power, and aerospace avionics interfaces requiring stable component supply and long-term lifecycle support.
Supply support for MDA3KP7.0A 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 MDA series was developed specifically for mission-critical transient suppression where MIL-PRF-19500 screening, wide temperature operation, and guaranteed 3000 W surge capability are mandatory design requirements.
FAQ
What is the clamping voltage of MDA3KP7.0A at its rated peak pulse current?
The MDA3KP7.0A has a maximum clamping voltage (VC) of 12.0 V at 250 A peak pulse current under 10/1000 µs waveform conditions. This value is specified in the Electrical Characteristics table on page 3 of the RF01243 Rev B datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The MDA3KP7.0A maintains this clamping performance across its full operating temperature range.
Is MDA3KP7.0A RoHS compliant?
Yes, MDA3KP7.0A is RoHS compliant, indicated by the "e3" suffix in its full part marking per the nomenclature guide on page 2 of RF01243 Rev B. The device uses annealed matte-tin plating on terminals and void-free UL94V-0 epoxy packaging, meeting JEDEC J-STD-020B moisture sensitivity Level 1 without dry pack requirement. The MDA3KP7.0A conforms to Directive 2011/65/EU and related amendments.
Does MDA3KP7.0A support MIL-PRF-19500 screening?
Yes, MDA3KP7.0A offers optional upscreening per MIL-PRF-19500, including wafer fabrication and assembly lot traceability, 3σ lot norm screening on standby current (ID), and conformance inspections detailed in Micronote 129. This screening path is explicitly referenced in the FEATURES section of the RF01243 Rev B datasheet and qualifies the MDA3KP7.0A for use in defense and space applications requiring high-reliability assurance.
What is the polarity configuration of MDA3KP7.0A?
MDA3KP7.0A is a unidirectional TVS diode, with Pin 1 designated as the cathode and marked by a dot on the package top per the MECHANICAL and PACKAGING section on page 2 of RF01243 Rev B. This configuration allows it to conduct only during positive overvoltage events on the cathode side, making it suitable for protecting DC-powered lines where reverse leakage must be minimized.
How does MDA3KP7.0A compare to MDA3KP7.0CA?
MDA3KP7.0CA is the bidirectional variant of the same family, supporting symmetrical clamping for AC-coupled or floating signal lines. Unlike the unidirectional MDA3KP7.0A, MDA3KP7.0CA exhibits matched clamping in both directions and is used in applications like RS-485 or Ethernet PHY protection. The MDA3KP7.0A is not interchangeable with MDA3KP7.0CA due to fundamental polarity and circuit role differences-substitution requires schematic and layout review.
MDA3KP7.0A 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:
- -
MDA3KP7.0A FAQ
1.How can I place an order for MDA3KP7.0A through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP7.0A 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 MDA3KP7.0A reliable?
The price and inventory of MDA3KP7.0A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP7.0A is usually 5 days.
3.What payment methods are accepted for MDA3KP7.0A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP7.0A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP7.0A?
MDA3KP7.0A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP7.0A 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 MDA3KP7.0A?
For technical support, including MDA3KP7.0A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP7.0A requirements.
6.How does Aetrix verify that MDA3KP7.0A is sourced from the original manufacturer or authorized distributors?
All MDA3KP7.0A 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 MDA3KP7.0A meets industry standards.
7.What is the process for return or replacement of MDA3KP7.0A?
All MDA3KP7.0A units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP7.0A, 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 MDA3KP7.0A part is unused and in its original packaging.
Return procedure for MDA3KP7.0A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MDA3KP7.0A 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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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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