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Microchip Technology MADA3KP18CAE3
- Part No.:
- MADA3KP18CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MADA3KP18CAE3.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,589
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Product details
Overview
MDA3KP18CAE3 from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array designed for high-reliability surge protection in industrial and telecom power rails. It features a 18 V standoff voltage (VWM), 20.0–22.1 V breakdown range (V(BR)), 29.2 V maximum clamping voltage at 102.8 A peak pulse current, and operates from −55 °C to +150 °C. It protects against IEC61000-4-5 secondary lightning (Class 1–4, 2–42 Ω source), ESD (IEC61000-4-2), and EFT (IEC61000-4-4).
For engineers reviewing the MDA3KP18CAE3 datasheet, MDA3KP18CAE3 pinout, MDA3KP18CAE3 application, or MDA3KP18CAE3 equivalent, key selection criteria include bidirectional polarity, 10/1000 µs surge rating, RoHS-compliant matte-tin plating, UL94V-0 molded package, and compatibility with MIL-PRF-19500 upscreening for aerospace-grade reliability.
Technical Context
The MDA3KP18CAE3 implements a silicon avalanche diode structure optimized for sub-nanosecond response (<5 ns) under bidirectional transient stress. Its clamping behavior is defined by a tightly controlled 20.0–22.1 V breakdown window at 1 mA, enabling precise coordination with downstream IC overvoltage thresholds.
It delivers 3000 W peak pulse power at 10/1000 µs waveform with <2 µA standby current at 18 V, supporting low-power system monitoring while maintaining robust surge immunity. The device is rated for 260 °C solder temperature and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity without dry pack.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 18 V - Maximum continuous DC or peak AC voltage the device blocks without conduction. |
| V(BR) min/max | 20.0–22.1 V @ 1 mA - Ensures predictable turn-on margin above operating rail, minimizing false triggering. |
| VC @ IPP | 29.2 V @ 102.8 A - Limits downstream component stress during worst-case 10/1000 µs surges. |
| PPP | 3000 W @ 10/1000 µs - Sustains high-energy transients common in industrial motor drives and PoE injectors. |
| ID @ VWM | ≤2 µA - Enables use in battery-backed or ultra-low-quiescent systems without leakage-induced drain. |
| TJ/TSTG | −55 to +150 °C - Supports deployment in extended-temperature environments including outdoor base stations and automotive under-hood modules. |
Pinout & Package
MDA3KP18CAE3 uses a 2-pin DO-214AB (SMC) surface-mount package with void-free UL94V-0 epoxy body, tin-lead or matte-tin plating, and polarity marked by a dot indicating Pin 1 as cathode (bidirectional configuration means both terminals function symmetrically as anode/cathode pairs).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Bidirectional Terminal A) | Serves as one terminal of the symmetrical avalanche junction; connects to protected line or ground reference per layout. |
| Pin 2 | Anode (Bidirectional Terminal B) | Completes the bidirectional path; interchangeable with Pin 1 in layout due to symmetrical construction. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables single-device protection of AC lines or differential buses without polarity constraints. |
| 3000 W peak pulse power | Handles high-energy surges from inductive switching or lightning coupling without degradation. |
| MIL-PRF-19500 upscreening option | Supports aerospace and defense programs requiring lot traceability, 3σ ID screening, and conformance inspection. |
| UL94V-0 thermoset epoxy case | Provides flame-retardant mechanical integrity in high-density PCB assemblies exposed to thermal cycling. |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
Use Scenario: Protection of 24 V DC control inputs against switching transients from contactor coil de-energization. IC Role / Device Role / Timing Role: TVS array clamps induced spikes before they reach PLC input conditioning circuitry. Use Value: Prevents latch-up or permanent damage to microcontroller GPIOs rated for ≤30 V absolute maximum. | Use Scenario: Surge suppression on -48 V DC telecom power distribution boards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamp absorbs both positive and negative polarity transients on floating DC rails. Use Value: Maintains uninterrupted service during IEC61000-4-5 Class 4 tests (42 Ω source, 4 kV) without reset or brownout. |
| PoE+ PSE Controllers | Outdoor Wireless Base Stations |
Use Scenario: Input-side protection of IEEE 802.3at Power Sourcing Equipment (PSE) controllers handling up to 30 W per port. IC Role / Device Role / Timing Role: Fast-clamping TVS limits voltage overshoot during hot-plug events and cable discharge. Use Value: Keeps PSE MOSFET gate drive within safe SOA during 100 ns ESD events per IEC61000-4-2 Level 4. | Use Scenario: Front-end protection of RF power amplifiers fed from unshielded outdoor power cables subject to induced surges. IC Role / Device Role / Timing Role: Primary surge arrestor placed upstream of DC-DC converters and bias networks. Use Value: Reduces field failure rate by absorbing >95% of 3000 W 10/1000 µs transients before reaching sensitive GaN HEMTs. |
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 package (smaller footprint). | Limited to lower-energy surges; unsuitable for IEC61000-4-5 Class 4 or motor drive snubbing. | Select when space-constrained layouts require reduced PCB area and surge energy remains ≤600 W. |
| 1.5KE18CA | 1500 W PPP, axial-leaded DO-201 package, higher thermal resistance, no MIL-PRF-19500 screening option. | Not suitable for automated SMT assembly or high-reliability mil-aero deployments. | Choose only for cost-sensitive prototyping where leaded through-hole mounting is acceptable. |
Compared with SMBJ18CA and 1.5KE18CA, the MDA3KP18CAE3 provides double the surge power handling of the former and triple that of the latter, while supporting RoHS compliance, SMT assembly, and upscreening-making it the sole choice for mission-critical 3000 W transient suppression.
Availability
MDA3KP18CAE3 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, PoE+ PSE controllers, and outdoor wireless base stations requiring stable component supply across long production lifecycles.
Supply support for MDA3KP18CAE3 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, communications, and industrial markets.
The MDA series was developed specifically for high-energy transient suppression in harsh-environment power systems, emphasizing MIL-PRF-19500 compliance, wide temperature operation, and repeatable clamping performance under repetitive surge stress.
FAQ
What does the 'C' suffix in MDA3KP18CAE3 indicate?
The 'C' suffix in MDA3KP18CAE3 denotes bidirectional polarity, meaning the device functions identically for both positive and negative transient voltages across its terminals. This enables protection of AC-coupled signals or floating DC rails without concern for orientation during placement. Unlike unidirectional variants (e.g., MDA3KP18AE3), the MDA3KP18CAE3 has symmetrical breakdown characteristics and is commonly used in telecom and PoE applications where polarity reversal may occur.
Is MDA3KP18CAE3 RoHS compliant?
Yes, MDA3KP18CAE3 is RoHS compliant, as confirmed by the 'e3' suffix in the part number and stated in the Microsemi datasheet RF01243 Rev B. The device uses annealed matte-tin plating on its terminals and complies with Directive 2011/65/EU. No lead or other restricted substances exceed allowable thresholds, and the UL94V-0 epoxy body meets halogen-free requirements per industry standards.
What is the maximum clamping voltage of MDA3KP18CAE3 and at what current is it specified?
The maximum clamping voltage (VC) of MDA3KP18CAE3 is 29.2 V, measured at the peak pulse current (IPP) of 102.8 A under 10/1000 µs waveform conditions. This value represents the upper limit of voltage seen by downstream circuitry during worst-case surge events and is critical for ensuring protected components remain within their absolute maximum voltage ratings.
Can MDA3KP18CAE3 be used for IEC61000-4-5 Class 4 lightning surge testing?
Yes, MDA3KP18CAE3 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 RF01243 Rev B. Its 3000 W peak pulse power rating and 29.2 V clamping voltage enable reliable pass performance at 4 kV test levels when properly mounted with low-inductance layout practices.
What package type does MDA3KP18CAE3 use and what are its key mechanical features?
MDA3KP18CAE3 uses the DO-214AB (SMC) surface-mount package: 2-pin, void-free UL94V-0 thermosetting epoxy body, matte-tin or tin-lead plating, and polarity indicated by a dot marking Pin 1. Key dimensions include 21.03–22.05 mm length (A), 6.86–7.87 mm width (B), and 8.64–9.65 mm height (C), making it compatible with standard SMC footprints and reflow profiles per J-STD-020B Level 1.
MADA3KP18CAE3 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:
- -
MADA3KP18CAE3 FAQ
1.How can I place an order for MADA3KP18CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MADA3KP18CAE3 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 MADA3KP18CAE3 reliable?
The price and inventory of MADA3KP18CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MADA3KP18CAE3 is usually 5 days.
3.What payment methods are accepted for MADA3KP18CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MADA3KP18CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MADA3KP18CAE3?
MADA3KP18CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MADA3KP18CAE3 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 MADA3KP18CAE3?
For technical support, including MADA3KP18CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MADA3KP18CAE3 requirements.
6.How does Aetrix verify that MADA3KP18CAE3 is sourced from the original manufacturer or authorized distributors?
All MADA3KP18CAE3 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 MADA3KP18CAE3 meets industry standards.
7.What is the process for return or replacement of MADA3KP18CAE3?
All MADA3KP18CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MADA3KP18CAE3, 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 MADA3KP18CAE3 part is unused and in its original packaging.
Return procedure for MADA3KP18CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MADA3KP18CAE3 Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Toshiba Semiconductor and Storage
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