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Microchip Technology MADA3KP18CA
- Part No.:
- MADA3KP18CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MADA3KP18CA.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:9,816
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Product details
Overview
MADA3KP18CA from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array designed for high-reliability surge protection in industrial and telecom power interfaces. 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 ESD (IEC61000-4-2), EFT (IEC61000-4-4), and secondary lightning surges (IEC61000-4-5) in DC power rails.
For engineers reviewing the MADA3KP18CA datasheet, MADA3KP18CA pinout, MADA3KP18CA application, or MADA3KP18CA equivalent, this device serves as a high-energy, surface-mount TVS solution for robust overvoltage protection in telecom base stations, industrial PLCs, and DC power distribution systems where fast response (<5 ns), low clamping, and MIL-PRF-19500 upscreening capability are critical selection criteria.
Technical Context
The MADA3KP18CA employs an avalanche diode structure optimized for bidirectional clamping across both polarities, enabling symmetric transient suppression without polarity dependency. Its <5 ns response time ensures effective mitigation of ESD and fast-rising EFT events, while its 3000 W peak pulse power rating (10/1000 µs waveform) supports high-energy surge handling in harsh environments.
Designed for surface-mount vertical orientation, it integrates dual-channel protection in a single package with odd-numbered pins serving as cathodes per channel. The device meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity and is RoHS-compliant (e3 marking), supporting lead-free reflow assembly without dry pack requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 18 V - Maximum continuous DC operating voltage before clamping begins; sets minimum system rail compatibility. |
| V(BR) min/max | 20.0–22.1 V - Breakdown occurs within this range at 1 mA; defines turn-on threshold consistency across temperature and lot. |
| VC @ IPP | 29.2 V at 102.8 A - Clamping voltage during full-rated 10/1000 µs surge; determines worst-case voltage stress on protected ICs. |
| PPP | 3000 W - Peak pulse power dissipation capability under standard 10/1000 µs waveform; enables Class 4 lightning protection with 42 Ω source impedance. |
| ID @ VWM | 2 µA - Standby leakage current at rated standoff; ensures minimal power loss in always-on DC systems. |
| TJ/TSTG | −55 °C to +150 °C - Extended junction/storage temperature range; supports operation in uncontrolled industrial enclosures and outdoor telecom cabinets. |
Pinout & Package
Package: Vertical surface-mount DO-214AB (SMC) molded epoxy case, void-free UL94V-0 compliant, ~5 g weight, with tin-lead or matte-tin plating. Pin 1 identified by dot marking; odd-numbered pins are cathodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode of Channel 1 | Clamps positive transients to ground when referenced to Pin 2; defines polarity for unidirectional use cases. |
| Pin 2 | Anode of Channel 1 / Cathode of Channel 2 | Common node between two back-to-back diodes; enables bidirectional clamping between Pins 1 and 3. |
| Pin 3 | Cathode of Channel 2 | Clamps negative transients to ground when referenced to Pin 2; completes symmetrical protection path. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables single-device protection of AC-coupled or floating DC lines without external polarity management. |
| 3000 W peak pulse power (10/1000 µs) | Supports IEC61000-4-5 Class 4 secondary lightning protection with 42 Ω source impedance in telecom infrastructure. |
| <5 ns response time | Guarantees sub-nanosecond reaction to ESD events (IEC61000-4-2), limiting voltage overshoot before downstream ICs are stressed. |
| MIL-PRF-19500 upscreening option | Enables qualification for aerospace and defense applications requiring wafer/lot traceability and 3σ standby current screening. |
Applications
| Telecom Power Interface | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 24 V DC power inputs in 4G/5G remote radio units exposed to induced lightning surges and switching noise from nearby AC mains. IC Role / Device Role / Timing Role: Bidirectional TVS array clamping differential-mode surges between VIN and GND before they reach DC-DC controllers and PMICs. Use Value: Limits clamped voltage to ≤29.2 V during 102.8 A transients, preserving 30 V-rated input stages of power management ICs. | Use Scenario: Safeguarding digital input modules in programmable logic controllers subjected to relay coil flyback and EFT bursts in factory automation. IC Role / Device Role / Timing Role: Fast-response transient suppressor placed at terminal block entry to shunt energy before signal conditioning amplifiers and isolation barriers. Use Value: Sub-5 ns turn-on prevents >20 V spikes from propagating into 5 V logic-level interface circuits, avoiding latch-up or reset faults. |
| DC Power Distribution Panel | Outdoor Surveillance System Power Rail |
Use Scenario: Overvoltage protection on 48 V DC bus feeding multiple subsystems in railway signaling cabinets with long cable runs. IC Role / Device Role / Timing Role: Primary surge arrestor at main power entry point, coordinated with downstream MOVs and fuses. Use Value: 3000 W rating handles multi-kA induced surges from nearby traction currents, while 2 µA leakage avoids battery drain in backup systems. | Use Scenario: Protecting PoE-powered IP cameras mounted on metal poles subject to direct electrostatic discharge and nearby lightning coupling. IC Role / Device Role / Timing Role: Bidirectional clamp on PSE-side data pair and power line to suppress common-mode and differential-mode transients. Use Value: Symmetric clamping ensures equal protection for both polarities of IEEE 802.3af/at power delivery, maintaining PD compliance under surge stress. |
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 configuration, DO-214AA package (smaller footprint). | Limited to Class 2 lightning (IEC61000-4-5, 42 Ω); insufficient for Class 4 telecom surge requirements. | Select when board space is constrained and peak surge energy is ≤600 W - not suitable for primary protection in base station power inputs. |
| SMCJ18CA | 1500 W PPP rating, identical DO-214AB package, same VWM and clamping voltage spec. | Meets Class 3 lightning (42 Ω), but fails Class 4 margin; lower energy handling reduces lifetime under repeated surges. | Choose for cost-sensitive industrial controls where 1500 W is sufficient and MIL-PRF-19500 screening is not required. |
Compared with SMBJ18CA and SMCJ18CA, the MADA3KP18CA delivers double the surge energy capacity of SMCJ18CA and five times that of SMBJ18CA, enabling reliable Class 4 lightning protection in mission-critical telecom and rail infrastructure where sustained 3000 W pulse handling and upscreening traceability are mandatory design requirements.
Availability
MADA3KP18CA is available at Aetrix Electronics and suitable for telecom base station power inputs, industrial PLC I/O modules, and outdoor DC power distribution systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MADA3KP18CA 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 packaging, targeting applications demanding MIL-PRF-19500 conformance, extended temperature operation, and validated 3000 W surge performance without derating.
FAQ
What is the clamping voltage of the MADA3KP18CA at its rated peak pulse current?
The MADA3KP18CA has a maximum clamping voltage (VC) of 29.2 V at its rated peak pulse current (IPP) of 102.8 A under the standard 10/1000 µs waveform. This value is measured per IEC61000-4-5 test conditions and represents the worst-case voltage imposed on protected circuitry during full-rated surge events. The MADA3KP18CA maintains this clamping performance across its full operating temperature range.
Is the MADA3KP18CA suitable for bidirectional signal line protection?
Yes, the MADA3KP18CA is explicitly designed as a bidirectional TVS array, indicated by the "C" suffix in its part number. Its internal back-to-back diode configuration provides symmetrical clamping for both positive and negative transients across Pins 1–2 and 2–3. While optimized for power rail protection, it can protect bidirectional data lines like RS-485 or CAN if current and capacitance constraints permit - however, dedicated low-capacitance TVS arrays are preferred for high-speed signal integrity.
Does the MADA3KP18CA require dry packing per J-STD-020B?
No, the MADA3KP18CA is rated at Moisture Sensitivity Level 1 per IPC/JEDEC J-STD-020B, meaning it has unlimited floor life and does not require dry pack storage or baking prior to reflow soldering. This simplifies manufacturing logistics and eliminates moisture-related popcorning risk during lead-free reflow, making the MADA3KP18CA suitable for high-volume automated assembly without special handling.
Can the MADA3KP18CA be used for IEC61000-4-5 Class 4 lightning protection?
Yes, the MADA3KP18CA is qualified for IEC61000-4-5 Class 4 secondary lightning protection when tested with a 42 Ω source impedance, as confirmed in the official Microsemi application note RF01243. Its 3000 W peak pulse power rating and 29.2 V clamping voltage ensure compliance with the 4 kV test level for AC/DC power ports in telecom and industrial equipment - a key requirement for EN 61000-6-2 and FCC Part 15 certification.
What does the "e3" marking on the MADA3KP18CA indicate?
The "e3" marking on the MADA3KP18CA denotes full RoHS compliance per Directive 2011/65/EU, indicating that the device contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits. This marking appears adjacent to the date code on the package body and confirms suitability for environmentally regulated markets including the EU, China, and South Korea, without requiring exemptions or additional compliance documentation.
MADA3KP18CA 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:
- -
MADA3KP18CA FAQ
1.How can I place an order for MADA3KP18CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MADA3KP18CA 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 MADA3KP18CA reliable?
The price and inventory of MADA3KP18CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MADA3KP18CA is usually 5 days.
3.What payment methods are accepted for MADA3KP18CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MADA3KP18CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MADA3KP18CA?
MADA3KP18CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MADA3KP18CA 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 MADA3KP18CA?
For technical support, including MADA3KP18CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MADA3KP18CA requirements.
6.How does Aetrix verify that MADA3KP18CA is sourced from the original manufacturer or authorized distributors?
All MADA3KP18CA 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 MADA3KP18CA meets industry standards.
7.What is the process for return or replacement of MADA3KP18CA?
All MADA3KP18CA units undergo pre-shipment inspection (PSI). If there is an issue with MADA3KP18CA, 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 MADA3KP18CA part is unused and in its original packaging.
Return procedure for MADA3KP18CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MADA3KP18CA Tags
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