My Inquiry
My Account
Microchip Technology MDA3KP14AE3
- Part No.:
- MDA3KP14AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP14AE3.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,435
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MDA3KP14AE3 from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array designed for high-reliability secondary lightning and ESD protection in industrial power interfaces. 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 line cards and motor drive I/O protection.
For engineers reviewing the MDA3KP14AE3 datasheet, MDA3KP14AE3 pinout, MDA3KP14AE3 application, or MDA3KP14AE3 equivalent, key selection criteria include clamping performance under 10/1000 µs surge, standoff voltage margin relative to system DC rail, thermal derating above 25 °C, and RoHS-compliant matte-tin termination compatibility with lead-free reflow.
Technical Context
The MDA3KP14AE3 is a single-channel, unidirectional TVS diode optimized for fast transient suppression in DC power rails and signal lines subject to IEC 61000-4-2 (ESD), -4-4 (EFT), and -4-5 (lightning) threats. Its sub-100 ps response time ensures clamping before sensitive downstream circuitry sustains damage.
It delivers 3000 W peak pulse power per 10/1000 µs waveform at 25 °C, with clamping voltage tightly specified at 23.2 V (max) at 129.4 A IPP. Standby leakage is ≤2 µA at 14 V VWM, supporting low-power monitoring circuits without loading error.
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 - Confirmed breakdown threshold range for reliable triggering margin |
| VC @ IPP | 23.2 V max @ 129.4 A - Clamped voltage during worst-case 10/1000 µs surge; defines protected circuit's overvoltage ceiling |
| PPP | 3000 W @ 10/1000 µs - Peak surge energy handling capacity under standard lightning waveform |
| ID @ VWM | ≤2 µA - Negligible standby leakage at rated standoff, critical for battery-backed or high-impedance sensing nodes |
| TJ/TSTG | −55 °C to +150 °C - Full industrial temperature range support without derating loss of surge rating |
| RoHS | e3 - Matte-tin termination compliant with EU RoHS Directive 2011/65/EU, suitable for Pb-free assembly |
Pinout & Package
MDA3KP14AE3 uses a 2-pin DO-214AB (SMC) package with cathode-anode polarity: Pin 1 is cathode (marked by dot), Pin 2 is anode. Body is void-free UL94V-0 epoxy; terminals are annealed matte-tin solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line; conducts when transient exceeds V(BR); requires trace routing to ground plane or TVS return path |
| Pin 2 | Anode | Connected to system ground or low-impedance reference; completes clamping path during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables robust protection against IEC 61000-4-5 Class 3 lightning surges (42 Ω source) on 24 V industrial buses |
| 10/1000 µs waveform compliance | Validated clamping performance under standardized surge test condition used in telecom and automation equipment certification |
| ≤2 µA ID @ VWM | Preserves accuracy in high-impedance voltage monitoring circuits without introducing offset or drift |
| −55 °C to +150 °C operation | Supports deployment in under-hood automotive ECUs or outdoor telecom enclosures without thermal derating penalties |
| e3 RoHS-compliant termination | Ensures compatibility with Pb-free reflow profiles (peak 260 °C) and eliminates post-assembly tin whisker risk |
Applications
| Industrial Motor Drive I/O Protection | Telecom Line Card Surge Suppression |
|---|---|
Use Scenario: Protecting encoder feedback lines and digital I/O ports in variable-frequency drives exposed to inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient spikes on 24 V supply and 5 V logic rails before they reach MCU GPIO or isolated RS-485 transceivers. Use Value: Prevents latch-up and gate oxide damage in microcontrollers and level shifters during 3000 W surge events while maintaining <2 µA leakage at nominal bus voltage. | Use Scenario: Secondary lightning protection on POTS line interface circuits in central office DSLAMs and remote terminal units. IC Role / Device Role / Timing Role: Front-end TVS limiting induced surges from tip/ring pairs to ≤23.2 V before hybrid transformers and SLIC ICs. Use Value: Meets IEC 61000-4-5 Class 3 (42 Ω source) requirements with verified 129.4 A IPP capability and stable clamping across −40 °C to +85 °C operating range. |
| Programmable Logic Controller (PLC) Analog Input Protection | Renewable Energy Inverter DC Link Monitoring |
Use Scenario: Guarding 4–20 mA current loop inputs and ±10 V analog inputs in modular PLC backplanes subjected to field wiring ESD and cable-coupled noise. IC Role / Device Role / Timing Role: Low-leakage TVS placed upstream of precision op-amps and ADC front-ends to prevent input stage saturation or damage. Use Value: ≤2 µA standby current avoids gain error in high-impedance sensor conditioning paths; 14 V VWM aligns with common 12 V auxiliary supply rails. | Use Scenario: Protecting voltage divider networks and isolation amplifiers monitoring 600–1000 V DC link voltages in solar string inverters. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing coupling transients from nearby IGBT switching, preventing false overvoltage trips in control logic. Use Value: 15.6–17.2 V V(BR) provides ≥15% margin above 14 V nominal bias, ensuring stable clamping without premature conduction during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ14A | 600 W PPP rating, same VWM and VC, but lower IPP (84.5 A) and smaller SMB package | Lower energy handling limits use to ESD/EFT-only zones; unsuitable for IEC 61000-4-5 Class 3 lightning | Select MDA3KP14AE3 where 3000 W surge immunity is required; choose SMBJ14A only for space-constrained, low-energy signal-line protection. |
| 1.5KE14A | Through-hole DO-201 package, identical electrical specs, but no RoHS e3 marking and higher thermal resistance | Requires wave soldering; less suitable for mixed-technology SMT-only PCBs or high-volume automated assembly | Prefer MDA3KP14AE3 for fully SMT designs needing RoHS compliance and thermal performance; use 1.5KE14A only for legacy through-hole repair or prototyping. |
Compared with SMBJ14A and 1.5KE14A, MDA3KP14AE3 uniquely combines 3000 W surge rating, SMC surface-mount form factor, and RoHS e3 termination-enabling high-reliability, high-energy protection in modern industrial SMT systems without layout or process compromise.
Availability
MDA3KP14AE3 is available at Aetrix Electronics and suitable for industrial motor drives, telecom line cards, PLC analog inputs, and renewable energy inverter monitoring requiring stable component supply and long-term lifecycle support.
Supply support for MDA3KP14AE3 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, RF solutions, and discrete protection devices for aerospace, defense, and industrial markets.
The MDA3KP series was engineered specifically for mission-critical transient suppression in harsh-environment power electronics, emphasizing surge robustness, temperature stability, and MIL-PRF-19500 screening readiness.
FAQ
What is the clamping voltage of MDA3KP14AE3 at its rated peak pulse current?
The MDA3KP14AE3 has a maximum clamping voltage (VC) of 23.2 V when subjected to its rated peak pulse current (IPP) of 129.4 A under the standard 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events. The MDA3KP14AE3 maintains this clamping performance without degradation up to +150 °C junction temperature.
Is MDA3KP14AE3 suitable for IEC 61000-4-5 Class 3 secondary lightning protection?
Yes, MDA3KP14AE3 is validated for IEC 61000-4-5 Class 3 secondary lightning protection with a 42 Ω source impedance, delivering full 3000 W peak pulse power at 25 °C. Its 129.4 A IPP and 23.2 V clamping voltage meet the voltage and current thresholds required for this class. Derating curves in the datasheet confirm continued compliance up to +125 °C ambient, making MDA3KP14AE3 appropriate for industrial control cabinets and outdoor telecom enclosures.
What does the 'e3' suffix in MDA3KP14AE3 indicate?
The 'e3' suffix in MDA3KP14AE3 denotes RoHS-compliant matte-tin plating on the terminals, conforming to EU Directive 2011/65/EU. This finish supports Pb-free reflow soldering at 260 °C for 10 seconds and eliminates tin whisker growth risk in long-life applications. Unlike non-RoHS variants (blank suffix), MDA3KP14AE3 is qualified for global commercial and industrial deployments where environmental compliance is mandatory.
How does the standoff voltage (VWM) of MDA3KP14AE3 relate to system design?
The 14 V VWM of MDA3KP14AE3 must be selected to exceed the maximum continuous operating voltage of the protected line-typically by ≥10–15% to accommodate ripple and tolerance. For example, it is ideal for 12 V nominal DC rails where peak excursions reach 13.8 V. Selecting MDA3KP14AE3 ensures no conduction during normal operation while guaranteeing rapid clamping once transients exceed 15.6 V (V(BR) min), preserving signal integrity and power efficiency.
Can MDA3KP14AE3 replace older through-hole TVS diodes like 1.5KE14A?
MDA3KP14AE3 provides identical electrical specifications to 1.5KE14A-including VWM, V(BR), VC, and IPP-but in a surface-mount SMC package with RoHS e3 termination. While not pin-compatible due to different footprints, MDA3KP14AE3 serves as a direct functional upgrade for new designs requiring automated SMT assembly, higher reliability screening, and Pb-free compliance. Migration requires PCB land pattern revision but retains full protection performance.
MDA3KP14AE3 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):
- 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:
- -
MDA3KP14AE3 FAQ
1.How can I place an order for MDA3KP14AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP14AE3 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 MDA3KP14AE3 reliable?
The price and inventory of MDA3KP14AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP14AE3 is usually 5 days.
3.What payment methods are accepted for MDA3KP14AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP14AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP14AE3?
MDA3KP14AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP14AE3 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 MDA3KP14AE3?
For technical support, including MDA3KP14AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP14AE3 requirements.
6.How does Aetrix verify that MDA3KP14AE3 is sourced from the original manufacturer or authorized distributors?
All MDA3KP14AE3 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 MDA3KP14AE3 meets industry standards.
7.What is the process for return or replacement of MDA3KP14AE3?
All MDA3KP14AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP14AE3, 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 MDA3KP14AE3 part is unused and in its original packaging.
Return procedure for MDA3KP14AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MDA3KP14AE3 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
