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Microchip Technology MDA3KP14CAE3
- Part No.:
- MDA3KP14CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP14CAE3.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:9,933
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Product details
Overview
MDA3KP14CAE3 from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array in a surface-mount DO-214AB package, designed for high-reliability secondary lightning and ESD protection. It features a 14 V reverse standoff voltage (VWM), 15.6–17.2 V breakdown voltage (V(BR)), 23.2 V maximum clamping voltage at 129.4 A peak pulse current, and operates from –55 °C to +150 °C - used in telecom power interfaces and industrial I/O protection.
For engineers reviewing the MDA3KP14CAE3 datasheet, MDA3KP14CAE3 pinout, MDA3KP14CAE3 application, or MDA3KP14CAE3 equivalent, key selection criteria include bidirectional polarity, 10/1000 µs surge rating, IEC61000-4-2/4-4/4-5 compliance, RoHS-compliant matte-tin plating, and MIL-PRF-19500 upscreening eligibility.
Technical Context
The MDA3KP14CAE3 implements a silicon avalanche diode structure optimized for sub-nanosecond response (<5 ns) under bidirectional transients. Its clamping behavior is characterized at 129.4 A IPP with VC = 23.2 V, enabling robust suppression of 3000 W surges while maintaining low leakage (ID ≤ 2 µA @ 14 V).
It supports secondary lightning protection per IEC61000-4-5 across Class 1–4 with 42 Ω source impedance and Class 1–3 with 12 Ω source impedance. Temperature derating follows a defined curve down to 0% power at +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - maximum continuous DC or peak AC voltage the device blocks without conduction |
| V(BR) min/max | 15.6–17.2 V @ 1 mA - guaranteed avalanche onset range defining minimum protection threshold |
| VC @ IPP | 23.2 V @ 129.4 A - clamped voltage during worst-case 10/1000 µs surge, limiting downstream stress |
| PPP | 3000 W @ 10/1000 µs - peak transient energy handling capacity under standard surge waveform |
| ID @ VWM | ≤2 µA - ultra-low leakage ensures minimal standby power loss and signal integrity in high-impedance circuits |
| TJ/TSTG | –55 °C to +150 °C - extended thermal range supports operation in harsh industrial and aerospace environments |
| Polarity | Bidirectional - protects against both positive and negative polarity transients without external circuitry |
Pinout & Package
MDA3KP14CAE3 uses a DO-214AB (SMC) surface-mount package with two terminals: Cathode (Pin 1) and Anode (Pin 2). Polarity is marked by a dot on the top surface indicating Pin 1 (cathode). The void-free UL94V-0 epoxy body weighs ~5 g and supports reflow soldering at 260 °C for 10 s.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Cathode) | Transient current sink terminal | Connected to protected line; conducts surge current to ground when voltage exceeds V(BR) |
| Pin 2 (Anode) | Reference/return path | Typically tied to system ground or common reference; completes clamping path during bidirectional events |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables single-device protection of AC-coupled or floating lines without polarity constraints |
| 3000 W peak pulse power | Withstands high-energy surges from lightning-induced coupling or inductive switching in telecom and power systems |
| MIL-PRF-19500 upscreening option | Supports high-reliability qualification including lot traceability, 3σ ID screening, and surge testing |
| RoHS-compliant matte-tin plating | Ensures reliable solderability per MIL-STD-750 Method 2026 and eliminates lead-based process concerns |
| Sub-5 ns response time | Clamps transients before sensitive ICs experience overvoltage damage, critical for ESD/EFT immunity |
Applications
| Telecom Line Interface Protection | Industrial PLC Digital I/O |
|---|---|
Use Scenario: Protecting RS-485/RS-232 data lines in outdoor base stations exposed to induced lightning surges. IC Role / Device Role / Timing Role: Bidirectional TVS array clamping differential-mode transients between A/B lines and ground. Use Value: Limits line voltage to ≤23.2 V during 129.4 A surges, preserving transceiver integrity per IEC61000-4-5 Class 3 (12 Ω source). | Use Scenario: Shielding 24 V DC digital input channels in factory automation controllers from relay coil kickback. IC Role / Device Role / Timing Role: Fast-clamping transient suppressor placed across input terminals to shunt inductive spikes. Use Value: Responds in <5 ns to suppress >3000 W spikes, preventing false triggering and microcontroller reset events. |
| Medical Equipment Power Entry | Automotive Body Control Module |
Use Scenario: Safeguarding AC/DC power supply inputs in portable diagnostic devices against ESD and mains-borne transients. IC Role / Device Role / Timing Role: Primary-level TVS on L/N lines before rectification, rated for 14 V working voltage. Use Value: Maintains ≤2 µA leakage at 14 V, avoiding unnecessary power drain while meeting IEC61000-4-2 Level 4 (15 kV contact discharge). | Use Scenario: Protecting LIN bus pins in BCM modules from load dump and battery reversal transients. IC Role / Device Role / Timing Role: Bidirectional clamp on LIN signal line referenced to chassis ground. Use Value: Withstands 10/1000 µs surges up to 3000 W without degradation, supporting automotive-grade reliability requirements. |
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 PPP rating, same VWM and bidirectional polarity, DO-214AA package (smaller footprint) | Limited to lower-energy transients; unsuitable for IEC61000-4-5 Class 3/4 or lightning-level surges | Select when space-constrained and surge threat is limited to ESD/EFT only |
| 1.5KE14CA | 3000 W PPP but axial-leaded DO-15 package; higher parasitic inductance (~15 nH vs. ~8 nH for SMC) | Not suitable for high-frequency or high-density PCB layouts; requires through-hole mounting | Choose for legacy designs or cost-sensitive non-SMT production where board real estate is not constrained |
Compared with SMBJ14CA and 1.5KE14CA, the MDA3KP14CAE3 delivers identical 14 V standoff and bidirectional operation while offering superior surge robustness in a surface-mount package optimized for automated assembly and low-inductance layout - making it the preferred choice for new industrial and telecom designs requiring full IEC61000-4-5 compliance.
Availability
MDA3KP14CAE3 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, medical power entry, and automotive body control modules requiring stable component supply and long-term lifecycle support.
Supply support for MDA3KP14CAE3 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 commercial surface-mount form factors, targeting applications demanding MIL-PRF-19500 screening, wide temperature operation, and certified IEC61000-4-x immunity.
FAQ
What is the clamping voltage of MDA3KP14CAE3 at its rated peak pulse current?
The MDA3KP14CAE3 has a maximum clamping voltage (VC) of 23.2 V at its rated peak pulse current (IPP) of 129.4 A under 10/1000 µs waveform conditions. This value is measured across the device terminals during surge conduction and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
Is MDA3KP14CAE3 RoHS compliant and what does the 'e3' suffix indicate?
Yes, MDA3KP14CAE3 is RoHS compliant. The 'e3' suffix explicitly denotes annealed matte-tin plating per J-STD-020B, confirming lead-free termination and compliance with EU Directive 2011/65/EU. This plating also meets MIL-STD-750 Method 2026 for solderability and supports Pb-free reflow profiles up to 260 °C.
How does the bidirectional configuration of MDA3KP14CAE3 affect its use in circuit protection?
The bidirectional configuration of MDA3KP14CAE3 allows it to protect AC-coupled or floating signal lines from transients of either polarity without requiring external polarity management. Unlike unidirectional TVS devices, MDA3KP14CAE3 conducts symmetrically above ±15.6 V, making it ideal for differential buses like RS-485 or LIN where voltage reversals occur during normal operation.
Can MDA3KP14CAE3 be used for IEC61000-4-5 Class 4 lightning protection?
MDA3KP14CAE3 supports IEC61000-4-5 Class 4 lightning protection only with 42 Ω source impedance, as specified in the manufacturer's application guidance. It is not rated for Class 4 under 12 Ω or 2 Ω source impedances - those require lower-voltage variants such as MDA3KP6.0CA to MDA3KP18A per the original datasheet classification table.
What is the thermal derating behavior of MDA3KP14CAE3 above 25 °C ambient?
MDA3KP14CAE3 follows a linear derating curve from 100% of its 3000 W peak pulse power rating at 25 °C down to 0% at +150 °C junction temperature. Derating is defined in Figure 3 of the RF01243 datasheet and must be applied based on actual TJ, not ambient temperature, using thermal resistance and power dissipation models appropriate for the PCB layout and heatsinking.
MDA3KP14CAE3 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:
- -
MDA3KP14CAE3 FAQ
1.How can I place an order for MDA3KP14CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP14CAE3 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 MDA3KP14CAE3 reliable?
The price and inventory of MDA3KP14CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP14CAE3 is usually 5 days.
3.What payment methods are accepted for MDA3KP14CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP14CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP14CAE3?
MDA3KP14CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP14CAE3 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 MDA3KP14CAE3?
For technical support, including MDA3KP14CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP14CAE3 requirements.
6.How does Aetrix verify that MDA3KP14CAE3 is sourced from the original manufacturer or authorized distributors?
All MDA3KP14CAE3 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 MDA3KP14CAE3 meets industry standards.
7.What is the process for return or replacement of MDA3KP14CAE3?
All MDA3KP14CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP14CAE3, 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 MDA3KP14CAE3 part is unused and in its original packaging.
Return procedure for MDA3KP14CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MDA3KP14CAE3 Tags
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