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Microchip Technology MADA3KP28CA
- Part No.:
- MADA3KP28CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MADA3KP28CA.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:9,171
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Product details
Overview
MADA3KP28CA from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array in a surface-mount DO-214AB package, designed for high-reliability secondary lightning protection per IEC61000-4-5 (42 Ω, 12 Ω, and 2 Ω source impedances), ESD suppression per IEC61000-4-2, and EFT protection per IEC61000-4-4. It features a 28 V standoff voltage (VWM), 31.1–34.4 V breakdown range (V(BR)), and clamps to ≤45.4 V at 66 A peak pulse current (IPP).
For engineers reviewing the MADA3KP28CA datasheet, MADA3KP28CA pinout, MADA3KP28CA application, or MADA3KP28CA equivalent, this device is selected for robust overvoltage protection in telecom line cards, industrial PLC I/O modules, and automotive body control units where fast response (<5 ns), high surge capability, and bidirectional polarity are required.
Technical Context
The MADA3KP28CA employs an avalanche diode structure optimized for sub-5 ns response time and low clamping ratio (VC/V(BR) ≈ 1.37). Its bidirectional configuration enables symmetrical clamping across both polarities without external circuitry, supporting AC-coupled signal lines and differential bus protection.
It meets MIL-PRF-19500 screening options for high-reliability applications and is rated for junction temperatures from –55 °C to +150 °C. The device is surge-tested per 10/1000 µs waveform and exhibits Level 1 moisture sensitivity (IPC/JEDEC J-STD-020B) with no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff Voltage) | 28 V - Maximum continuous operating voltage before conduction begins; sets minimum system voltage margin. |
| V(BR) Range | 31.1–34.4 V @ 1 mA - Confirmed breakdown threshold ensures predictable turn-on during transients. |
| VC @ IPP | ≤45.4 V @ 66 A - Clamping voltage defines worst-case voltage seen by protected ICs during 10/1000 µs surge. |
| PPP | 3000 W @ 10/1000 µs - Peak power handling capacity determines survivability under lightning-induced surges. |
| Response Time | <5 ns - Enables effective suppression of ESD events (IEC61000-4-2) and fast switching transients. |
| ID @ VWM | ≤2 µA - Ultra-low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ Range | –55 °C to +150 °C - Supports operation in extended-temperature industrial and automotive environments. |
Pinout & Package
Package: DO-214AB (SMC), void-free thermosetting epoxy body, UL94V-0 rated, ~5 g weight. Pin 1 identified by dot on top; odd-numbered pins are cathodes per TVS element.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (TVS1) | Connects to protected line; conducts when voltage exceeds V(BR) in negative direction. |
| Pin 2 | Anode (TVS1) / Cathode (TVS2) | Common center terminal enabling bidirectional clamping between Pins 1 and 3. |
| Pin 3 | Anode (TVS2) | Connects to protected line; conducts when voltage exceeds V(BR) in positive direction. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables single-device protection of AC signals or differential buses without polarity constraints. |
| 3000 W peak pulse power | Supports Class 4 secondary lightning immunity (IEC61000-4-5, 42 Ω source) in telecom and industrial interfaces. |
| Sub-5 ns response time | Guarantees suppression of ESD events before sensitive logic or analog circuitry is damaged. |
| MIL-PRF-19500 screening option | Provides traceable wafer/assembly lots and 3σ lot norm screening on standby current for aerospace/defense use. |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and bake-out prior to reflow, reducing manufacturing overhead. |
Applications
| Telecom Line Interface Protection | Industrial PLC Analog I/O Protection |
|---|---|
Use Scenario: Protecting RS-485/RS-422 transceivers on outdoor telecom line cards exposed to induced lightning surges. IC Role / Device Role / Timing Role: Bidirectional TVS clamps common-mode transients on differential pairs while preserving signal integrity. Use Value: Withstands 3000 W surges per IEC61000-4-5 (42 Ω source) and limits clamped voltage to ≤45.4 V, preventing damage to ±12 V transceivers. | Use Scenario: Shielding 4–20 mA current-loop sensors and ADC front-ends in factory-floor PLC modules. IC Role / Device Role / Timing Role: Fast-clamping TVS shunts inductive kickback and EFT bursts before they reach precision analog circuitry. Use Value: Sub-5 ns response and ≤2 µA leakage ensure minimal interference with 16-bit ADC accuracy and long-term sensor calibration stability. |
| Automotive Body Control Module (BCM) | Medical Patient Monitoring Port |
Use Scenario: Safeguarding LIN bus and switch inputs in BCMs subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping absorbs reverse-polarity and double-spike transients on unregulated 12 V rails. Use Value: Rated for –55 °C to +150 °C and qualified per MIL-PRF-19500 options, ensuring reliability in under-hood thermal cycling. | Use Scenario: Protecting isolated USB and serial ports on patient monitors connected to hospital-grade power and grounding systems. IC Role / Device Role / Timing Role: Low-leakage TVS prevents DC offset drift in isolation barriers while suppressing ESD from clinical staff contact. Use Value: ≤2 µA ID at 28 V standoff maintains galvanic isolation integrity and avoids false fault triggers during IEC61000-4-2 ±8 kV contact discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ28CA | 600 W PPP rating (vs. 3000 W); same VWM and bidirectional polarity; DO-214AA package. | Not suitable for Class 4 lightning; limited to ESD/EFT and low-energy switching transients. | Select SMBJ28CA only when surge energy is <100 mJ and PCB space is constrained. |
| SMCJ28CA | 1500 W PPP rating; identical DO-214AB package and pinout; slightly higher VC (≤48.4 V @ 31 A). | Meets Class 3 lightning (42 Ω source) but not Class 4; lower peak current handling than MADA3KP28CA. | Choose SMCJ28CA for cost-sensitive industrial designs where full 3000 W capability is not required. |
Compared with SMBJ28CA and SMCJ28CA, the MADA3KP28CA delivers 2× and 2× higher peak pulse power respectively, enabling compliance with stringent Class 4 secondary lightning standards while maintaining identical footprint and bidirectional functionality-critical for field-upgradeable telecom and defense platforms.
Availability
MADA3KP28CA is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and automotive electronics requiring stable component supply, long lifecycle support, and MIL-qualified reliability options.
Supply support for MADA3KP28CA 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 engineered specifically for mission-critical overvoltage protection in harsh electromagnetic environments-emphasizing surge survivability, temperature resilience, and process traceability over cost-optimized consumer-grade TVS arrays.
FAQ
What is the clamping voltage of the MADA3KP28CA at its rated peak pulse current?
The MADA3KP28CA has a maximum clamping voltage (VC) of 45.4 V when subjected to its rated peak pulse current (IPP) of 66 A under 10/1000 µs waveform conditions. This value is measured across the device terminals and defines the upper voltage limit imposed on protected circuitry during surge events. The clamping performance is guaranteed across the full operating temperature range and is validated per Figure 2 in the official RF01243 datasheet. MADA3KP28CA maintains consistent clamping behavior due to its tightly controlled avalanche breakdown characteristics.
Is the MADA3KP28CA RoHS compliant?
Yes, the MADA3KP28CA is RoHS compliant, indicated by the "e3" suffix in its full marking per the part nomenclature guide on page 2 of RF01243. The device uses annealed matte-tin plating on terminals and void-free thermosetting epoxy packaging that meets UL94V-0 flammability requirements. Compliance is verified per EU Directive 2011/65/EU and aligns with Microsemi's standard environmental policy. MADA3KP28CA is suitable for use in consumer, industrial, and medical equipment subject to RoHS enforcement.
How does the bidirectional design of the MADA3KP28CA affect its circuit implementation?
The bidirectional design of the MADA3KP28CA allows it to protect AC-coupled or differential signal paths-such as RS-485, CAN, or audio lines-without requiring polarity awareness during layout. Internally, it consists of two back-to-back avalanche diodes sharing a common center terminal (Pin 2), enabling symmetrical clamping for both positive and negative transients. This eliminates the need for dual unidirectional devices or external biasing. MADA3KP28CA simplifies board routing and reduces component count compared to discrete solutions while maintaining full 3000 W surge capability in either polarity.
Can the MADA3KP28CA be used for primary lightning protection?
No, the MADA3KP28CA is specified exclusively for secondary lightning protection per IEC61000-4-5, meaning it protects downstream circuitry after primary protection (e.g., gas discharge tubes or spark gaps) has diverted bulk energy. Its 3000 W rating and 10/1000 µs waveform compliance are validated only for induced surges-not direct strikes or high-charge primary events. Using MADA3KP28CA as sole protection in mains-connected or antenna-line applications violates safety standards. Always pair MADA3KP28CA with upstream coarse protection in multi-stage architectures.
What is the maximum operating temperature for the MADA3KP28CA?
The MADA3KP28CA is rated for a junction and storage temperature range of –55 °C to +150 °C, as confirmed in the Maximum Ratings table on page 2 of RF01243. Derating of peak pulse power begins above 25 °C per Figure 3, with 50% power capability retained at +125 °C. This wide thermal envelope supports deployment in under-hood automotive modules, outdoor base stations, and industrial motor drives. MADA3KP28CA's silicon process and packaging ensure parametric stability and reliability across this full range without performance degradation.
MADA3KP28CA 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):
- 28V
- Voltage - Breakdown (Min):
- 31.1V
- Voltage - Clamping (Max) @ Ipp:
- 45.4V
- Current - Peak Pulse (10/1000µs):
- 66A
- 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:
- -
MADA3KP28CA FAQ
1.How can I place an order for MADA3KP28CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MADA3KP28CA 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 MADA3KP28CA reliable?
The price and inventory of MADA3KP28CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MADA3KP28CA is usually 5 days.
3.What payment methods are accepted for MADA3KP28CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MADA3KP28CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MADA3KP28CA?
MADA3KP28CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MADA3KP28CA 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 MADA3KP28CA?
For technical support, including MADA3KP28CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MADA3KP28CA requirements.
6.How does Aetrix verify that MADA3KP28CA is sourced from the original manufacturer or authorized distributors?
All MADA3KP28CA 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 MADA3KP28CA meets industry standards.
7.What is the process for return or replacement of MADA3KP28CA?
All MADA3KP28CA units undergo pre-shipment inspection (PSI). If there is an issue with MADA3KP28CA, 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 MADA3KP28CA part is unused and in its original packaging.
Return procedure for MADA3KP28CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MADA3KP28CA Tags
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