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Microchip Technology MDA3KP14CA
- Part No.:
- MDA3KP14CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP14CA.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,689
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Product details
Overview
MDA3KP14CA from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array in a surface-mount DO-214AB package, designed for secondary lightning protection per IEC61000-4-5 (42 Ω, 12 Ω, and 2 Ω source impedances), ESD suppression per IEC61000-4-2, and EFT protection per IEC61000-4-4. It features a 14 V standoff voltage (VWM), 15.6–17.2 V breakdown range (V(BR)), 23.2 V max clamping voltage at 129.4 A peak pulse current, and operates from –55 °C to +150 °C.
For engineers reviewing the MDA3KP14CA datasheet, MDA3KP14CA pinout, MDA3KP14CA application, or MDA3KP14CA equivalent, key selection criteria include bidirectional polarity, 3000 W 10/1000 µs surge rating, IEC61000-4-5 Class 1–4 compliance with multiple source impedances, low standby current (≤2 µA), and RoHS-compliant e3 matte-tin plating.
Technical Context
The MDA3KP14CA implements a silicon avalanche diode structure optimized for fast response (<5 ns) and high-energy transient clamping. Its bidirectional configuration enables symmetrical protection of AC-coupled or differential signal lines without polarity constraints.
It is rated for 3000 W peak pulse power under 10/1000 µs waveform, with clamping performance validated across temperature (derated above 25 °C per Figure 3) and surge-tested per lot. The device meets MIL-PRF-19500 screening options when upscreened and exhibits Level 1 moisture sensitivity (J-STD-020B) with no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum continuous working voltage before clamping begins; matches 12 V nominal rail systems with margin |
| V(BR) min/max | 15.6–17.2 V - Breakdown initiates within this range at 1 mA; ensures reliable turn-on above operating voltage |
| VC @ IPP | 23.2 V at 129.4 A - Clamping voltage during full 3000 W surge; limits downstream voltage stress |
| IPP | 129.4 A - Peak impulse current supported at 10/1000 µs; defines maximum surge energy handling |
| ID @ VWM | ≤2 µA - Ultra-low leakage at rated standoff; avoids loading sensitive analog or low-power circuits |
| TJ/TSTG | –55 to +150 °C - Extended thermal range supports industrial, automotive under-hood, and aerospace environments |
| Package | DO-214AB (SMC) - Standardized surface-mount outline with 2-pin, cathode-marked body; compatible with automated assembly |
Pinout & Package
MDA3KP14CA uses a DO-214AB (SMC) package: void-free UL94V-0 epoxy body, matte-tin (e3) plating, 5 g typical weight, and polarity defined by a dot marking pin 1 as cathode. Bidirectional construction means both terminals function identically-no anode/cathode assignment required in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (per marking) | Dot-marked terminal; in bidirectional operation, serves as one side of symmetrical clamping path |
| Pin 2 | Anode (per marking) | Unmarked terminal; completes bidirectional TVS junction; interchangeable with Pin 1 for AC protection |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables single-device protection of AC signals, differential buses (e.g., RS-485), or ungrounded interfaces without polarity concerns |
| 3000 W 10/1000 µs rating | Handles high-energy surges from lightning-induced transients or inductive switching without degradation |
| IEC61000-4-5 Class 1–4 support | Validated for secondary lightning testing at 42 Ω, 12 Ω, and 2 Ω source impedances-covers telecom, industrial, and utility applications |
| RoHS-compliant e3 plating | Matte-tin termination ensures solderability per MIL-STD-750 Method 2026 and eliminates lead-based process requirements |
| Level 1 moisture sensitivity | No dry pack or baking required prior to reflow; simplifies manufacturing logistics and reduces handling risk |
Applications
| Industrial Motor Drives | Telecom Line Cards |
|---|---|
Use Scenario: Protection of DC bus inputs and control signal lines against switching transients from contactors and IGBTs. IC Role / Device Role / Timing Role: Transient voltage suppressor placed at board-level input stage to clamp induced spikes before reaching gate drivers or MCU I/O. Use Value: Limits clamped voltage to 23.2 V during 129.4 A surges, preventing latch-up or overvoltage damage to 24 V-rated logic and power stages. | Use Scenario: Surge protection on T1/E1 interface lines exposed to lightning-induced coupling in central office or remote terminal units. IC Role / Device Role / Timing Role: Bidirectional TVS connected across differential pairs to shunt common-mode transients while preserving signal integrity. Use Value: Meets IEC61000-4-5 Class 4 (42 Ω source) with ≤23.2 V clamping, maintaining line receiver immunity below 30 V absolute max ratings. |
| Automotive Body Control Modules | Medical Imaging Power Supplies |
Use Scenario: Input protection for 12 V supply rails feeding microcontrollers and CAN transceivers in harsh vehicle environments. IC Role / Device Role / Timing Role: Primary surge arrestor on main power entry point, coordinated with upstream fuses and downstream LC filters. Use Value: Withstands 3000 W pulses and operates from –55 °C to +150 °C, supporting under-hood deployment without derating loss. | Use Scenario: Protection of high-voltage DC-DC converter inputs in MRI or CT scanner power subsystems subject to EFT bursts and load dump events. IC Role / Device Role / Timing Role: Fast-clamping TVS placed directly at converter input capacitor to suppress sub-100 ns EFT edges per IEC61000-4-4. Use Value: <5 ns response time and 2 µA standby current prevent interference with precision regulation while ensuring fail-safe clamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ14CA | 600 W rating (vs. 3000 W); same DO-214AA package; 23.2 V clamping at 25.1 A IPP | Lower energy handling limits use to consumer-grade or low-risk signal-line protection only | Select SMBJ14CA only where surge threat level is Class 1–2 per IEC61000-4-5 and peak current remains <30 A |
| SMCJ14CA | 1500 W rating (vs. 3000 W); DO-214AB package identical to MDA3KP14CA; 23.2 V clamping at 64.5 A IPP | Lacks MIL-PRF-19500 screening option and high-reliability wafer traceability | Choose SMCJ14CA for cost-sensitive industrial designs where upscreening and lot traceability are not required |
Compared with SMBJ14CA and SMCJ14CA, the MDA3KP14CA delivers 2× and 2× higher peak pulse power respectively, supports full Class 4 lightning testing, and offers optional MIL-PRF-19500 upscreening-making it suitable for mission-critical infrastructure where reliability and surge margin are non-negotiable.
Availability
MDA3KP14CA is available at Aetrix Electronics and suitable for industrial motor drives, telecom line cards, and automotive body control modules requiring stable component supply, long-term lifecycle assurance, and consistent surge performance across production batches.
Supply support for MDA3KP14CA 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, RF, and radiation-hardened components for aerospace, defense, and industrial markets.
The MDA series was developed specifically for high-energy transient suppression in safety-critical systems, emphasizing MIL-PRF-19500 upscreening capability, lot traceability, and validated IEC61000-4-5 compliance across multiple source impedances.
FAQ
What does the 'C' suffix in MDA3KP14CA indicate?
The 'C' suffix in MDA3KP14CA denotes bidirectional polarity, meaning the device provides symmetrical clamping for both positive and negative transients without requiring orientation during placement. This differs from unidirectional variants like MDA3KP14A, which must be installed with correct anode/cathode alignment relative to system ground.
Is MDA3KP14CA compliant with RoHS and REACH regulations?
Yes, MDA3KP14CA is RoHS-compliant per its e3 marking, indicating annealed matte-tin plating with no lead content. It also meets REACH SVHC requirements as confirmed in Microsemi's material declarations. The device carries no exemptions and is suitable for environmentally regulated markets including EU and China RoHS.
What is the maximum clamping voltage of MDA3KP14CA under surge conditions?
The maximum clamping voltage (VC) of MDA3KP14CA is 23.2 V when subjected to its rated peak pulse current of 129.4 A under the standard 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and represents the upper limit of voltage seen by protected circuitry during worst-case surge events.
Can MDA3KP14CA be used for IEC61000-4-5 Class 4 lightning protection?
Yes, MDA3KP14CA is explicitly rated for IEC61000-4-5 Class 4 secondary lightning protection with 42 Ω source impedance, as documented in the Applications/Benefits section of the RF01243 datasheet. It also supports Class 4 at 12 Ω and Class 2–3 at 2 Ω source impedances, covering all major telecom and industrial test configurations.
Does MDA3KP14CA require moisture sensitivity handling before reflow soldering?
No, MDA3KP14CA has a J-STD-020B moisture sensitivity level (MSL) of Level 1, meaning it may be stored indefinitely at ambient conditions and requires no dry pack, baking, or floor-life tracking prior to reflow. This simplifies manufacturing flow and eliminates moisture-related popcorning risks during assembly.
MDA3KP14CA 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):
- 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:
- -
MDA3KP14CA FAQ
1.How can I place an order for MDA3KP14CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP14CA 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 MDA3KP14CA reliable?
The price and inventory of MDA3KP14CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP14CA is usually 5 days.
3.What payment methods are accepted for MDA3KP14CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP14CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP14CA?
MDA3KP14CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP14CA 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 MDA3KP14CA?
For technical support, including MDA3KP14CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP14CA requirements.
6.How does Aetrix verify that MDA3KP14CA is sourced from the original manufacturer or authorized distributors?
All MDA3KP14CA 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 MDA3KP14CA meets industry standards.
7.What is the process for return or replacement of MDA3KP14CA?
All MDA3KP14CA units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP14CA, 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 MDA3KP14CA part is unused and in its original packaging.
Return procedure for MDA3KP14CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MDA3KP14CA Tags
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