Microchip Technology MADA3KP17CA
- Part No.:
- MADA3KP17CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MADA3KP17CA.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:

- Shipping:

Inventory:2,106
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Product details
Overview
MADA3KP17CA from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array designed for high-reliability surge protection in power and signal lines. It features a 17 V reverse standoff voltage (VWM), 18.9–20.9 V breakdown voltage (V(BR)), 27.6 V maximum clamping voltage at 106.6 A peak pulse current, and operates across –55 °C to +150 °C. It is used in industrial power supplies for IEC 61000-4-5 secondary lightning protection with 12 Ω source impedance (Class 1–3).
For engineers reviewing the MADA3KP17CA datasheet, MADA3KP17CA pinout, MADA3KP17CA application, or MADA3KP17CA equivalent, key selection criteria include bidirectional polarity, 10/1000 µs surge rating, clamping performance under 106.6 A IPP, thermal derating above 25 °C, and MIL-PRF-19500 upscreening eligibility for aerospace-grade reliability.
Technical Context
The MADA3KP17CA implements a silicon avalanche diode structure optimized for sub-nanosecond response (<5 ns) to fast transients, enabling ESD (IEC 61000-4-2) and EFT (IEC 61000-4-4) suppression. Its bidirectional configuration allows symmetrical clamping on AC or differential signal lines without polarity constraints.
It is rated for 3000 W peak pulse power at 10/1000 µs waveform, with clamping voltage specified at 27.6 V max under 106.6 A IPP. Standby leakage is limited to 2 µA at 17 V VWM, supporting low-power system monitoring integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - Maximum continuous operating voltage before conduction begins; sets minimum system voltage margin for reliable standby operation. |
| V(BR) min–max | 18.9–20.9 V @ 1 mA - Confirmed avalanche onset range; ensures predictable turn-on within 10% tolerance for design margining. |
| VC @ IPP | 27.6 V max @ 106.6 A - Clamped voltage during worst-case 10/1000 µs surge; defines maximum stress imposed on protected downstream circuitry. |
| IPP | 106.6 A - Peak impulse current capability at rated clamping; determines survivability against defined lightning surge classes (e.g., IEC 61000-4-5 Class 3, 12 Ω source). |
| ID @ VWM | 2 µA max - Ultra-low leakage at standoff voltage; preserves battery life and avoids false triggering in high-impedance sensing paths. |
| TJ/TSTG | –55 °C to +150 °C - Extended junction temperature range supports operation in harsh environments including motor drives and outdoor telecom equipment. |
Pinout & Package
Package: DO-214AB (SMC) surface-mount plastic case per JEDEC DO-214AB outline; void-free UL94V-0 epoxy body; tin-lead or matte-tin plating; ~5 g weight; polarity marked with dot indicating Pin 1 (cathode for unidirectional variants; symmetric terminals for bidirectional MADA3KP17CA).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode (Bidirectional Terminal A) | One side of symmetrical avalanche junction; connects to line under protection (e.g., AC phase or differential pair leg). |
| Pin 2 | Cathode (Bidirectional Terminal B) | Other side of symmetrical junction; ties to reference plane (e.g., neutral, ground, or complementary line); no polarity dependency in bidirectional mode. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables AC-line and differential-signal protection without external polarity management or series diodes. |
| 3000 W peak pulse power @ 10/1000 µs | Meets IEC 61000-4-5 Class 3 lightning immunity requirements with 12 Ω source impedance in industrial systems. |
| <5 ns response time | Clamps ESD events (IEC 61000-4-2 ±8 kV contact) before sensitive ICs experience latch-up or gate oxide damage. |
| MIL-PRF-19500 upscreening option | Supports high-reliability qualification for aerospace and defense applications via wafer lot traceability and 3σ ID screening. |
Applications
| Industrial AC Power Input Protection | Telecom Line Interface Protection |
|---|---|
Use Scenario: 24 VAC control inputs in PLC modules exposed to switching surges and induced RF from nearby motor drives. IC Role / Device Role / Timing Role: Bidirectional TVS array shunting transient energy directly across input terminals before it reaches optocoupler or MCU input pins. Use Value: Limits clamped voltage to ≤27.6 V, preventing damage to 30 V-rated input protection networks and maintaining functional safety integrity per IEC 61000-4-4. | Use Scenario: T1/E1 data line interfaces in base station remote radio units subject to lightning-induced longitudinal surges. IC Role / Device Role / Timing Role: Primary surge arrestor placed between transformer secondary and line driver/receiver ICs. Use Value: Withstands 106.6 A peak current at 10/1000 µs, meeting GR-1089-CORE Level 3 requirements for central office equipment. |
| Automotive Body Control Module (BCM) Power Rail | Renewable Energy Inverter DC Link Monitoring |
Use Scenario: 12 V supply rail protection in BCMs where load dump and ISO 7637-2 Pulse 5a/b transients occur. IC Role / Device Role / Timing Role: Secondary-level clamp after upstream fuses and LC filters; absorbs residual energy not filtered by passive stages. Use Value: 17 V VWM aligns with nominal 12 V system + 40% tolerance; 27.6 V VC prevents overvoltage on 33 V-rated CAN transceivers and microcontrollers. | Use Scenario: Voltage sense inputs on DC link capacitors in solar inverters, exposed to fast transients during IGBT switching. IC Role / Device Role / Timing Role: High-impedance protection element placed across isolated ADC input divider network. Use Value: 2 µA max ID avoids measurement error in precision 16-bit voltage monitoring; <5 ns response prevents transient-induced sampling corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ17CA | 600 W PPP rating; same VWM (17 V) and bidirectional polarity; DO-214AA package (smaller footprint, lower thermal mass). | Limited to IEC 61000-4-5 Class 2 (12 Ω) or lower-energy ESD/EFT; unsuitable for Class 3 lightning with 106.6 A requirement. | Select when board space is constrained and surge threat level is reduced (e.g., consumer-grade AC adapters). |
| 1.5KE17CA | 1500 W PPP; axial-leaded DO-201 package; higher thermal resistance; 27.6 V VC identical but at only 54.3 A IPP. | Not suitable for surface-mount automated assembly; requires through-hole routing and manual soldering; lower surge endurance limits use in high-cycle industrial environments. | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required. |
Compared with SMBJ17CA and 1.5KE17CA, the MADA3KP17CA delivers 2× and 2× higher peak pulse power respectively, enabling robust Class 3 lightning protection in SMT-based industrial controls-without increasing PCB area or compromising automated manufacturing yield.
Availability
MADA3KP17CA is available at Aetrix Electronics and suitable for industrial power supplies, telecom line interfaces, automotive body control modules, and renewable energy inverter monitoring circuits requiring stable component supply and long-term lifecycle support.
Supply support for MADA3KP17CA 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 and mixed-signal ICs, RF solutions, and discrete protection devices.
The MDA3KP series was developed for mission-critical surge protection in aerospace, defense, and industrial systems-emphasizing MIL-PRF-19500 compliance, wide temperature operation, and verified 3000 W transient handling.
FAQ
What does the 'C' suffix in MADA3KP17CA indicate?
The 'C' suffix in MADA3KP17CA denotes bidirectional polarity, meaning the device provides symmetrical clamping voltage in both directions-ideal for AC line protection or differential signal paths where polarity reversal may occur. Unlike unidirectional variants (e.g., MADA3KP17A), MADA3KP17CA has no anode/cathode distinction and conducts equally on positive or negative transients.
Is MADA3KP17CA RoHS compliant?
Yes, MADA3KP17CA is RoHS compliant, indicated by the 'e3' marking per Microsemi's nomenclature. The device uses annealed matte-tin plating on terminals and meets lead-free soldering requirements up to 260 °C for 10 seconds, aligning with IPC/JEDEC J-STD-020B Level 1 moisture sensitivity classification.
What is the maximum clamping voltage of MADA3KP17CA and under what test condition?
The maximum clamping voltage (VC) of MADA3KP17CA is 27.6 V, measured at 106.6 A peak pulse current (IPP) using the standardized 10/1000 µs double-exponential surge waveform. This value represents the worst-case voltage imposed on protected circuitry during full-rated surge events, as confirmed in Microsemi's RF01243 datasheet Figure 2.
Can MADA3KP17CA be used for IEC 61000-4-5 Class 4 lightning protection?
No, MADA3KP17CA is not rated for IEC 61000-4-5 Class 4 with 2 Ω or 12 Ω source impedance per the datasheet: Class 4 is supported only for MDA3KP6.0CA to MDA3KP18A at 2 Ω, and MDA3KP6.0CA to MDA3KP18A at 12 Ω. MADA3KP17CA is qualified for Class 1–3 at 12 Ω and Class 1–4 at 42 Ω, but not Class 4 under 2 Ω or 12 Ω conditions.
What is the standoff voltage (VWM) and why is it critical for selecting MADA3KP17CA?
The standoff voltage (VWM) of MADA3KP17CA is 17 V-the maximum continuous DC or RMS voltage the device blocks without significant conduction. It must be selected ≥ the peak operating voltage of the protected line to avoid leakage or thermal runaway; for example, it suits 12 V systems with ±40% tolerance or 24 VAC inputs with rectified peaks near 34 V (requiring higher-VWM variants instead).
MADA3KP17CA 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):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 106.6A
- 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:
- -
MADA3KP17CA FAQ
1.How can I place an order for MADA3KP17CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MADA3KP17CA 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 MADA3KP17CA reliable?
The price and inventory of MADA3KP17CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MADA3KP17CA is usually 5 days.
3.What payment methods are accepted for MADA3KP17CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MADA3KP17CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MADA3KP17CA?
MADA3KP17CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MADA3KP17CA 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 MADA3KP17CA?
For technical support, including MADA3KP17CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MADA3KP17CA requirements.
6.How does Aetrix verify that MADA3KP17CA is sourced from the original manufacturer or authorized distributors?
All MADA3KP17CA 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 MADA3KP17CA meets industry standards.
7.What is the process for return or replacement of MADA3KP17CA?
All MADA3KP17CA units undergo pre-shipment inspection (PSI). If there is an issue with MADA3KP17CA, 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 MADA3KP17CA part is unused and in its original packaging.
Return procedure for MADA3KP17CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MADA3KP17CA Tags

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