My Inquiry
My Account
Microchip Technology MXDA3KP18AE3
- Part No.:
- MXDA3KP18AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP18AE3.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,305
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MXDA3KP18AE3 from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 18 V standoff voltage (VWM), 20.0–22.1 V breakdown voltage (V(BR)), and 29.2 V maximum clamping voltage (VC) at 102.8 A peak pulse current. It delivers IEC 61000-4-2/4-4/4-5-compliant ESD, EFT, and secondary lightning protection in industrial power supplies and telecom interfaces.
For engineers reviewing the MXDA3KP18AE3 datasheet, MXDA3KP18AE3 pinout, MXDA3KP18AE3 application, or MXDA3KP18AE3 equivalent, key selection criteria include standoff voltage matching, clamping performance under 10/1000 µs surge, RoHS-compliant e3 termination, and MIL-PRF-19500 upscreening eligibility for high-reliability deployments.
Technical Context
This TVS array uses silicon avalanche diode technology to clamp transient overvoltages within <100 ps response time. Its unidirectional polarity and 18 V VWM rating target DC power rail protection where reverse conduction must be blocked.
Rated for 3000 W peak pulse power at 10/1000 µs waveform, it sustains 102.8 A IPP while limiting voltage to ≤29.2 V, enabling robust protection of downstream MOSFETs, controllers, and interface ICs against inductive switching spikes and lightning-induced surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 18 V - Maximum continuous DC or peak AC voltage the device blocks without clamping |
| V(BR) min/max | 20.0–22.1 V @ 1 mA - Confirmed avalanche onset range ensuring reliable turn-on before system damage |
| VC @ IPP | 29.2 V @ 102.8 A - Clamped voltage during full 3000 W surge, defining worst-case stress on protected circuitry |
| ID @ VWM | 2 µA - Ultra-low leakage preserves efficiency in battery-backed or low-power standby systems |
| PPP | 3000 W @ 10/1000 µs - Sustained surge energy handling per IEC 61000-4-5 Class 1–4 compliance |
| TJ/TSTG | −55 to +150 °C - Full industrial temperature operation without derating below 25 °C |
Pinout & Package
MXDA3KP18AE3 is housed in a void-free thermosetting epoxy package (UL94V-0) with tin-lead or matte-tin plating, marked with date code and part number; Pin 1 is identified by a dot on top of the body. Polarity: odd-numbered pins are cathodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line; conducts surge current to ground when voltage exceeds V(BR) |
| Pin 2 | Anode | Connected to system ground; completes low-impedance path for transient energy dissipation |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables single-device protection against severe 10/1000 µs lightning surges per IEC 61000-4-5 |
| 29.2 V clamping at 102.8 A | Keeps protected ICs within safe operating area during worst-case transients |
| 2 µA standby leakage @ 18 V | Minimizes quiescent power loss in always-on or energy-sensitive applications |
| e3 RoHS-compliant termination | Meets global environmental compliance requirements without lead-free reflow complications |
Applications
| Industrial Power Supply Protection | Telecom Line Interface |
|---|---|
Use Scenario: 24 V DC input rail in programmable logic controllers exposed to relay coil flyback and nearby motor switching. IC Role / Device Role / Timing Role: Unidirectional TVS shunting positive-going transients to ground before they reach DC-DC controller inputs. Use Value: Limits voltage excursion to ≤29.2 V during 102.8 A surges, preventing latch-up or gate oxide damage in upstream regulators. | Use Scenario: RS-485 data lines in outdoor base stations subjected to induced RF and lightning coupling. IC Role / Device Role / Timing Role: Standoff-clamp protection element placed between transceiver I/O and connector, blocking >18 V excursions. Use Value: Responds in <100 ps to clamp induced surges, preserving signal integrity and meeting IEC 61000-4-5 Class 3 (12 Ω source) requirements. |
| Automotive Body Control Module | Medical Equipment Power Entry |
Use Scenario: 12 V battery-fed microcontroller supply in BCMs experiencing load dump and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power rail, coordinated with fuse and upstream filter. Use Value: Absorbs 3000 W pulses without degradation, maintaining VCC stability and avoiding brownout resets during ISO 7637-2 Pulse 5a events. | Use Scenario: AC/DC front-end of diagnostic imaging equipment requiring immunity to hospital-grade power disturbances. IC Role / Device Role / Timing Role: First-stage transient suppressor on primary-side DC bus before isolation transformer and PFC stage. Use Value: Withstands repeated 10/1000 µs surges up to 3000 W while exhibiting only 2 µA leakage-critical for low-noise analog signal chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ18A | 600 W PPP rating, 28.0 V VC @ 21.2 A IPP - lower energy handling | Best suited for board-level ESD/EFT only; insufficient for IEC 61000-4-5 Class 3/4 lightning | Select SMAJ18A only when surge threat level is limited to contact ESD and fast transients |
| SMCJ18A | 1500 W PPP rating, 29.2 V VC @ 51.4 A IPP - half the energy capacity of MXDA3KP18AE3 | Valid for IEC 61000-4-5 Class 1–2 (42 Ω/12 Ω), but not Class 3/4 with higher current demands | Choose SMCJ18A for cost-sensitive designs where full 3000 W capability is not required |
Compared with SMAJ18A and SMCJ18A, MXDA3KP18AE3 provides double the surge energy margin of SMCJ18A and five times that of SMAJ18A-enabling single-point protection against combined lightning, switching, and ESD threats without cascaded devices.
Availability
MXDA3KP18AE3 is available at Aetrix Electronics and suitable for industrial power supplies, telecom infrastructure, automotive control units, and medical equipment requiring stable component supply across long production lifecycles.
Supply support for MXDA3KP18AE3 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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, industrial, and communications markets.
The MDA3KP series was developed specifically for high-energy transient suppression in mission-critical power and interface circuits where failure is not an option.
FAQ
What is the clamping voltage of MXDA3KP18AE3 under maximum surge conditions?
MXDA3KP18AE3 exhibits a maximum clamping voltage (VC) of 29.2 V at 102.8 A peak pulse current (IPP), measured under standardized 10/1000 µs waveform conditions. This value defines the upper voltage limit imposed on protected circuitry during worst-case transients and is confirmed in the official Microsemi datasheet RF01243 Rev B. The low clamping ratio (VC/VWM ≈ 1.62) ensures effective protection of 24 V-rated components.
Is MXDA3KP18AE3 RoHS compliant?
Yes, MXDA3KP18AE3 is RoHS compliant, as indicated by the "e3" suffix in its full part number. This denotes annealed matte-tin termination meeting EU Directive 2011/65/EU requirements. The device contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits, and is suitable for environmentally regulated end equipment.
Can MXDA3KP18AE3 be used for bidirectional transient suppression?
No, MXDA3KP18AE3 is unidirectional. Its part number lacks the "C" suffix (e.g., MDA3KP18CE3), which designates bidirectional construction. MXDA3KP18AE3 conducts only during positive transients relative to ground and blocks reverse voltage-making it appropriate for DC power rail protection but unsuitable for AC or differential signal lines without additional circuitry.
What is the standoff voltage rating of MXDA3KP18AE3, and how does it relate to system design?
MXDA3KP18AE3 has a rated working standoff voltage (VWM) of 18 V, meaning it remains non-conductive up to this DC or peak AC voltage across its terminals. System designers must ensure maximum normal operating voltage stays at or below 18 V to prevent premature conduction; typical use cases include 12 V and 24 V rails with sufficient margin. Exceeding VWM risks excessive leakage or thermal runaway.
Does MXDA3KP18AE3 support MIL-PRF-19500 screening?
Yes, MXDA3KP18AE3 supports optional MIL-PRF-19500 upscreening per Microsemi's qualification program, including wafer lot traceability, 3σ standby current screening, and extended environmental testing. Screening levels (e.g., JANTXV, JANTX) are available upon request and require separate ordering codes-standard MXDA3KP18AE3 is commercial-grade unless explicitly ordered with screening suffixes.
MXDA3KP18AE3 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):
- 18V
- Voltage - Breakdown (Min):
- 20V
- Voltage - Clamping (Max) @ Ipp:
- 29.2V
- Current - Peak Pulse (10/1000µs):
- 102.8A
- 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:
- -
MXDA3KP18AE3 FAQ
1.How can I place an order for MXDA3KP18AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP18AE3 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 MXDA3KP18AE3 reliable?
The price and inventory of MXDA3KP18AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP18AE3 is usually 5 days.
3.What payment methods are accepted for MXDA3KP18AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXDA3KP18AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP18AE3?
MXDA3KP18AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP18AE3 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 MXDA3KP18AE3?
For technical support, including MXDA3KP18AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP18AE3 requirements.
6.How does Aetrix verify that MXDA3KP18AE3 is sourced from the original manufacturer or authorized distributors?
All MXDA3KP18AE3 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 MXDA3KP18AE3 meets industry standards.
7.What is the process for return or replacement of MXDA3KP18AE3?
All MXDA3KP18AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP18AE3, 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 MXDA3KP18AE3 part is unused and in its original packaging.
Return procedure for MXDA3KP18AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXDA3KP18AE3 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…
