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Microchip Technology MDA3KP7.0CA
- Part No.:
- MDA3KP7.0CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP7.0CA.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:8,467
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Product details
Overview
MDA3KP7.0CA from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array designed for high-reliability surge protection in industrial and aerospace systems. 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 (VC) at 250 A peak pulse current, and operates across –55 °C to +150 °C junction temperature.
For engineers reviewing the MDA3KP7.0CA datasheet, MDA3KP7.0CA pinout, MDA3KP7.0CA application, or MDA3KP7.0CA equivalent, key selection criteria include IEC61000-4-5 secondary lightning compliance (Class 1–4 with 42 Ω/12 Ω/2 Ω source impedances), bidirectional polarity, RoHS-compliant e3 marking, and surface-mount DO-214AB (SMC) package suitability for high-energy transient suppression in power rails and signal lines.
Technical Context
The MDA3KP7.0CA is a silicon avalanche diode-based TVS array optimized for fast-response clamping of high-energy transients. Its <5 ns response time enables effective suppression of ESD (IEC61000-4-2), EFT (IEC61000-4-4), and induced switching surges, while its 3000 W peak pulse power rating (10/1000 μs waveform) supports robust secondary lightning protection per IEC61000-4-5.
As a bidirectional device (denoted by "C" suffix), it provides symmetrical clamping in both polarities without requiring external polarity management. Its 7.0 V VWM ensures compatibility with 5 V and 3.3 V logic-supply rails, and its 12.0 V VC at 250 A IPP limits downstream voltage stress during surge events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous working voltage before clamping begins; matches 5 V/3.3 V system rail tolerances. |
| V(BR) min–max | 7.78–8.6 V @ 10 mA - Confirmed avalanche onset range; ensures predictable turn-on under surge conditions. |
| VC @ IPP | 12.0 V @ 250 A - Clamped voltage during full-rated 10/1000 μs surge; defines worst-case overvoltage seen by protected circuitry. |
| PPP | 3000 W @ 10/1000 μs - Peak energy-handling capability; validates suitability for Class 4 IEC61000-4-5 testing with 42 Ω source. |
| ID @ VWM | 200 μA - Low leakage at rated standoff; minimizes standby power loss and avoids false triggering. |
| TJ Range | –55 °C to +150 °C - Extended thermal operating envelope for under-hood, avionics, and industrial control environments. |
| Polarity | Bidirectional - Enables symmetric protection on AC lines or ungrounded differential signals without polarity constraints. |
Pinout & Package
Package: DO-214AB (SMC), void-free thermosetting epoxy body meeting UL94V-0; 5 g typical weight; RoHS-compliant matte-tin plating; polarity defined by dot marking indicating Pin 1 (cathode for each TVS element).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (TVS1) | Common cathode connection for first TVS element; ties to protected line or ground reference depending on layout. |
| Pin 2 | Anode (TVS1) / Cathode (TVS2) | Center tap node enabling bidirectional clamping path between two series-connected avalanche diodes. |
| Pin 3 | Anode (TVS2) | Common anode connection for second TVS element; completes symmetrical clamping structure across terminals 1–3. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables single-device protection of AC-coupled or floating signal paths without polarity-sensitive placement. |
| 3000 W peak pulse power | Supports repeated high-energy surges up to Class 4 IEC61000-4-5 with 42 Ω source impedance. |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and bake-out prior to reflow, reducing manufacturing cost and handling risk. |
| MIL-PRF-19500 screening option | Enables high-reliability qualification for aerospace and defense applications via wafer/lot traceability and 3σ ID screening. |
| <5 ns response time | Clamps ESD events before damage occurs to sensitive CMOS inputs or analog front-ends. |
Applications
| Industrial Motor Drives | Avionics Power Distribution |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensors against inductive kickback and load dump transients in variable-frequency drives. IC Role / Device Role / Timing Role: Bidirectional TVS array placed across DC bus and control signal lines to clamp ±12.0 V surges within 5 ns. Use Value: Prevents MOSFET gate oxide rupture and op-amp input stage damage during 3000 W switching events. | Use Scenario: Secondary lightning protection for 28 V DC distribution panels in commercial aircraft, per DO-160 Section 22. IC Role / Device Role / Timing Role: High-reliability TVS mounted at panel entry points to suppress 42 Ω IEC61000-4-5 surges up to Class 4. Use Value: Maintains system uptime by preventing latch-up or burnout in upstream regulators and bus monitors. |
| Telecom Line Cards | Medical Imaging Power Supplies |
Use Scenario: Surge protection on T1/E1 interface transformers and Ethernet PHY power rails exposed to induced RF and EFT. IC Role / Device Role / Timing Role: Bidirectional clamping device absorbing 10/1000 μs transients while maintaining <200 μA leakage at 7.0 V. Use Value: Ensures uninterrupted data transmission by limiting voltage excursions to ≤12.0 V during repetitive EFT bursts. | Use Scenario: Input-stage protection for high-voltage X-ray generator power supplies subject to switching transients and ESD. IC Role / Device Role / Timing Role: TVS array installed across primary-side bulk capacitor to clamp 3000 W surges without derating below –40 °C. Use Value: Guarantees regulatory compliance with IEC60601-1-2 immunity requirements for life-critical equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0CA | Lower PPP (600 W), same VWM (7.0 V), SMB package (smaller footprint, lower thermal mass) | Suitable for consumer-grade ESD/EFT only; not rated for Class 4 IEC61000-4-5 or 3000 W surges | Select when space-constrained and surge energy is limited to <600 W. |
| 1.5KE7.0CA | Same 3000 W PPP but axial DO-201 package; higher thermal resistance; no MIL-PRF-19500 screening option | Limited to through-hole assembly; unsuitable for automated SMT lines or high-vibration environments | Select only for legacy board redesigns where DO-201 footprint exists and reliability screening is not required. |
Compared with SMBJ7.0CA and 1.5KE7.0CA, the MDA3KP7.0CA uniquely combines 3000 W surge capability, surface-mount DO-214AB packaging, bidirectional symmetry, and optional high-reliability screening-making it the only choice for new SMT designs requiring Class 4 lightning immunity and aerospace qualification.
Availability
MDA3KP7.0CA is available at Aetrix Electronics and suitable for industrial motor drives, avionics power distribution, and telecom line cards requiring stable component supply, long-term lifecycle support, and traceable sourcing for high-reliability programs.
Supply support for MDA3KP7.0CA 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 and mixed-signal ICs, radiation-hardened devices, and discrete protection components.
The MDA3KP series was developed for mission-critical surge protection in aerospace, defense, and industrial systems where failure is not an option-delivering guaranteed 3000 W clamping performance with MIL-PRF-19500 screening capability.
FAQ
What is the clamping voltage of the MDA3KP7.0CA at its rated peak pulse current?
The MDA3KP7.0CA 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 standard test methods and defines the upper voltage limit imposed on protected circuitry during a full-rated surge event. The MDA3KP7.0CA maintains this clamping performance across its full operating temperature range.
Is the MDA3KP7.0CA suitable for IEC61000-4-5 Class 4 secondary lightning testing?
Yes, the MDA3KP7.0CA is explicitly rated for IEC61000-4-5 Class 4 secondary lightning protection with a 42 Ω source impedance, as confirmed in the manufacturer's application note RF01243. Its 3000 W peak pulse power rating and 12.0 V clamping voltage ensure compliance when used per recommended layout guidelines. The MDA3KP7.0CA also supports Class 4 with 12 Ω and 2 Ω sources for specific configurations.
How does the "C" suffix in MDA3KP7.0CA indicate device polarity?
The "C" suffix in MDA3KP7.0CA denotes bidirectional polarity, meaning the device provides symmetrical avalanche clamping in both forward and reverse directions. This is implemented using two back-to-back avalanche diodes in a common-cathode/anode configuration. Unlike unidirectional variants (e.g., MDA3KP7.0A), the MDA3KP7.0CA requires no external polarity alignment during PCB placement.
What package type does the MDA3KP7.0CA use, and what are its key mechanical attributes?
The MDA3KP7.0CA uses the DO-214AB (SMC) surface-mount package: 21.03–22.05 mm length, 6.86–7.87 mm width, 8.64–9.65 mm height, with matte-tin-plated terminations compliant with MIL-STD-750 Method 2026. Its UL94V-0 epoxy body and 5 g weight support high-vibration and high-reliability mounting. Pin 1 is marked by a dot on the top surface.
Does the MDA3KP7.0CA require moisture preconditioning before reflow soldering?
No, the MDA3KP7.0CA has IPC/JEDEC J-STD-020B moisture sensitivity level (MSL) 1, meaning it may be stored indefinitely at ambient conditions without dry packing or baking. This eliminates pre-reflow bake cycles and reduces manufacturing complexity. The MDA3KP7.0CA's MSL 1 rating is verified per standard humidity exposure testing and documented in RF01243 Rev B.
MDA3KP7.0CA 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):
- 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:
- -
MDA3KP7.0CA FAQ
1.How can I place an order for MDA3KP7.0CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP7.0CA 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 MDA3KP7.0CA reliable?
The price and inventory of MDA3KP7.0CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP7.0CA is usually 5 days.
3.What payment methods are accepted for MDA3KP7.0CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP7.0CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP7.0CA?
MDA3KP7.0CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP7.0CA 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 MDA3KP7.0CA?
For technical support, including MDA3KP7.0CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP7.0CA requirements.
6.How does Aetrix verify that MDA3KP7.0CA is sourced from the original manufacturer or authorized distributors?
All MDA3KP7.0CA 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 MDA3KP7.0CA meets industry standards.
7.What is the process for return or replacement of MDA3KP7.0CA?
All MDA3KP7.0CA units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP7.0CA, 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 MDA3KP7.0CA part is unused and in its original packaging.
Return procedure for MDA3KP7.0CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MDA3KP7.0CA Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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