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Microchip Technology MXDA3KP18CAE3
- Part No.:
- MXDA3KP18CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP18CAE3.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,004
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Product details
Overview
MXDA3KP18CAE3 from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array in DO-214AB (SMC) package, designed for high-reliability secondary lightning and ESD protection. It features 18 V standoff voltage (VWM), 20.0–22.1 V breakdown range (V(BR)), 29.2 V max clamping voltage at 102.8 A peak pulse current, and operates from –55 °C to +150 °C.
For engineers reviewing the MXDA3KP18CAE3 datasheet, MXDA3KP18CAE3 pinout, MXDA3KP18CAE3 application, or MXDA3KP18CAE3 equivalent, key selection criteria include IEC61000-4-5 Class 1–4 compliance with 42 Ω/12 Ω/2 Ω source impedances, bidirectional polarity, RoHS-compliant matte-tin plating, and 100 ps response time.
Technical Context
The MXDA3KP18CAE3 is a surface-mount TVS diode array engineered for fast-clamping surge suppression in industrial and telecom power rails. Its bidirectional construction enables symmetrical clamping for AC-coupled or floating signal lines, and its 10/1000 μs waveform rating supports IEC61000-4-5 Level 4 testing under 42 Ω source impedance.
It delivers sub-100 ps response time, low standby leakage (<2 μA at 18 V), and full surge testing per lot. The device uses void-free UL94V-0 epoxy packaging with tin-lead or matte-tin terminations compliant with MIL-STD-750 Method 2026.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 18 V - Maximum continuous operating voltage before clamping begins; matches 15 V nominal DC rails with 20% tolerance margin. |
| V(BR) min/max | 20.0–22.1 V - Confirmed breakdown threshold at 1 mA; ensures reliable turn-on above normal transients. |
| VC @ IPP | 29.2 V at 102.8 A - Clamping voltage during 10/1000 μs surge; limits downstream IC stress below 30 V. |
| PPP | 3000 W - Peak pulse power handling at 25 °C; supports repeated surges up to 0.05% duty cycle. |
| ID @ VWM | <2 μA - Ultra-low leakage at rated standoff; prevents battery drain or signal distortion in always-on systems. |
| TJ/TSTG | –55 to +150 °C - Extended thermal range enables use in automotive engine bays and industrial enclosures. |
| Response time | <100 ps - Near-instantaneous clamping; protects against ESD per IEC61000-4-2 ±8 kV contact discharge. |
Pinout & Package
MXDA3KP18CAE3 is housed in a DO-214AB (SMC) plastic package with dual anode-cathode configuration for bidirectional operation. Pin 1 is marked by a dot on the top surface and serves as cathode for Channel 1; Pin 2 is anode for Channel 1 and cathode for Channel 2; Pin 3 is anode for Channel 2. Polarity follows standard SMC layout with odd-numbered pins as cathodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Channel 1) | Reference terminal for first TVS junction; connects to protected line side in bidirectional clamp configuration. |
| Pin 2 | Anode (Ch1) / Cathode (Ch2) | Common center terminal enabling symmetrical clamping across both polarities; ties to ground or reference plane. |
| Pin 3 | Anode (Channel 2) | Reference terminal for second TVS junction; completes bidirectional path for reverse-polarity transients. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals or floating buses without polarity constraints. |
| IEC61000-4-5 Class 4 support | Validated for 4 kV surge immunity with 42 Ω source impedance - meets telecom and industrial port requirements. |
| MIL-PRF-19500 screening option | Available with high-reliability wafer/assembly lot traceability and 3σ standby current screening for aerospace/military use. |
| RoHS-compliant matte-tin plating | Ensures solderability per MIL-STD-750 Method 2026 and eliminates lead-based contamination in final assembly. |
| Moisture sensitivity Level 1 | No dry pack required per J-STD-020B - simplifies handling and eliminates bake-out prior to reflow. |
Applications
| Industrial Motor Drives | Telecom Line Cards |
|---|---|
Use Scenario: Protection of 24 V DC control inputs against switching transients from relay coils and contactors. IC Role / Device Role / Timing Role: Bidirectional TVS array clamps both positive and negative spikes before they reach PLC input buffers. Use Value: Prevents latch-up and permanent damage to microcontroller GPIOs while maintaining <2 μA leakage at 24 V rail. | Use Scenario: Surge protection on T1/E1 interface lines exposed to induced RF and lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response TVS array placed at line entry point to shunt >100 A transients within 100 ps. Use Value: Meets GR-1089-CORE Level 4 (42 Ω source) and maintains signal integrity via low capacitance design. |
| Automotive Body Control Modules | Medical Diagnostic Equipment |
Use Scenario: Guarding LIN bus nodes against load dump and jump-start transients in 12 V vehicle networks. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between LIN transceiver and connector, referenced to chassis ground. Use Value: Withstands 3000 W pulses at –40 °C to +125 °C and complies with ISO 7637-2 Pulse 5a requirements. | Use Scenario: Safeguarding analog front-end inputs of portable ultrasound devices from ESD events during clinical handling. IC Role / Device Role / Timing Role: Low-leakage TVS array installed at sensor interface to prevent ESD-induced ADC offset drift. Use Value: Sub-2 μA ID at 18 V avoids baseline shift in precision 24-bit sigma-delta converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ18CA | 600 W PPP rating, same VWM and bidirectional polarity, DO-214AA (SMB) package. | Limited to IEC61000-4-5 Class 2 (2 kV) due to lower power handling. | Select when space-constrained layouts require smaller SMB footprint and surge energy stays below 600 W. |
| SMCJ18CA | 1500 W PPP rating, identical DO-214AB (SMC) package, same VWM and clamping profile. | Insufficient for Class 4 (4 kV) lightning testing with 42 Ω source impedance. | Choose for cost-sensitive industrial designs where 1500 W headroom suffices and full 3000 W margin is not required. |
Compared with SMBJ18CA and SMCJ18CA, MXDA3KP18CAE3 provides double the peak pulse power of SMCJ18CA and five times that of SMBJ18CA - enabling robust Class 4 lightning immunity in compact SMC form factor without PCB redesign.
Availability
MXDA3KP18CAE3 is available at Aetrix Electronics and suitable for industrial motor drives, telecom line cards, and automotive body control modules requiring stable component supply and long-term lifecycle assurance.
Supply support for MXDA3KP18CAE3 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 packages, targeting applications demanding MIL-PRF-19500 screening, extended temperature operation, and repeatable 3000 W surge performance.
FAQ
What is the clamping voltage of MXDA3KP18CAE3 at its rated peak pulse current?
The MXDA3KP18CAE3 has a maximum clamping voltage (VC) of 29.2 V at its rated peak pulse current (IPP) of 102.8 A under 10/1000 μs waveform conditions. This value is measured per Figure 2 in the official datasheet and guarantees predictable overvoltage limiting during surge events without exceeding safe thresholds for downstream 3.3 V or 5 V logic interfaces.
Is MXDA3KP18CAE3 RoHS compliant and what does the 'e3' suffix indicate?
Yes, MXDA3KP18CAE3 is RoHS compliant. The 'e3' suffix explicitly denotes matte-tin plating per JEDEC standards and full compliance with Directive 2011/65/EU. This replaces lead-based terminations while maintaining solderability per MIL-STD-750 Method 2026 and eliminating hazardous substance reporting obligations in EU and global supply chains.
How does the bidirectional configuration of MXDA3KP18CAE3 affect its circuit placement?
The bidirectional configuration of MXDA3KP18CAE3 allows it to be placed directly across any two points needing symmetrical overvoltage protection - such as differential data lines or AC-coupled power rails - without regard to polarity. Pin 1 and Pin 3 serve as outer terminals, while Pin 2 is the common center node tied to ground or reference, enabling true bipolar clamping without external diode pairing.
Can MXDA3KP18CAE3 be used for IEC61000-4-2 ESD protection?
Yes, MXDA3KP18CAE3 is qualified for IEC61000-4-2 ESD protection with <100 ps response time and clamping performance verified at ±8 kV contact discharge. Its low leakage (<2 μA) and fast turn-on ensure minimal disruption to high-impedance analog or digital signal paths, making it suitable for protecting USB, RS-485, and sensor interfaces where ESD robustness is critical.
What is the maximum operating temperature range for MXDA3KP18CAE3?
The MXDA3KP18CAE3 is rated for junction and storage temperatures from –55 °C to +150 °C. This extended range supports deployment in under-hood automotive ECUs, outdoor telecom cabinets, and industrial variable-frequency drives where ambient temperatures exceed 105 °C and thermal cycling reliability is essential for long-term field operation.
MXDA3KP18CAE3 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):
- 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:
- -
MXDA3KP18CAE3 FAQ
1.How can I place an order for MXDA3KP18CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP18CAE3 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 MXDA3KP18CAE3 reliable?
The price and inventory of MXDA3KP18CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP18CAE3 is usually 5 days.
3.What payment methods are accepted for MXDA3KP18CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXDA3KP18CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP18CAE3?
MXDA3KP18CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP18CAE3 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 MXDA3KP18CAE3?
For technical support, including MXDA3KP18CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP18CAE3 requirements.
6.How does Aetrix verify that MXDA3KP18CAE3 is sourced from the original manufacturer or authorized distributors?
All MXDA3KP18CAE3 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 MXDA3KP18CAE3 meets industry standards.
7.What is the process for return or replacement of MXDA3KP18CAE3?
All MXDA3KP18CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP18CAE3, 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 MXDA3KP18CAE3 part is unused and in its original packaging.
Return procedure for MXDA3KP18CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXDA3KP18CAE3 Tags
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