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Microchip Technology MADA3KP17A
- Part No.:
- MADA3KP17A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MADA3KP17A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,498
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Product details
Overview
MDA3KP17A from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array designed for high-reliability overvoltage protection in power rails 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 from −55 °C to +150 °C - deployed in industrial motor drives, telecom power supplies, and railway signaling interfaces.
For engineers reviewing the MDA3KP17A datasheet, MDA3KP17A pinout, MDA3KP17A application, or MDA3KP17A equivalent, key selection criteria include verified 10/1000 µs surge rating, RoHS-compliant void-free epoxy package, polarity-defined cathode pin assignment, and IEC61000-4-2/4-4/4-5 compliance for ESD, EFT, and secondary lightning protection.
Technical Context
The MDA3KP17A functions as a unidirectional avalanche diode-based TVS, triggered when transient voltage exceeds its 18.9 V minimum breakdown threshold. Its sub-100 ps response time enables suppression of fast-rising ESD events, while sustaining 3000 W peak pulse power under 10/1000 µs waveform conditions.
It is rated for 2 µA maximum standby current at 17 V standoff, exhibits 27.6 V clamping at 106.6 A IPP, and maintains full surge capability across −55 °C to +150 °C junction temperature range - with traceable wafer lot control and MIL-PRF-19500 upscreening options available.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - maximum continuous DC or peak AC voltage the device blocks without conduction |
| V(BR) min/max | 18.9–20.9 V @ 1 mA - precise avalanche onset range defining turn-on consistency |
| VC @ IPP | 27.6 V @ 106.6 A - clamped voltage during worst-case 10/1000 µs surge, limiting downstream stress |
| PPP | 3000 W @ 10/1000 µs - validated single-pulse energy handling per IEC61000-4-5 |
| ID @ VWM | ≤2 µA - ultra-low leakage ensures minimal power loss in standby rail protection |
| TJ/TSTG | −55 °C to +150 °C - wide thermal range supports under-hood, industrial, and aerospace environments |
Pinout & Package
MDA3KP17A uses a 3-pin surface-mount TO-277A (SMC) package with void-free UL94V-0 epoxy body, matte-tin terminations, and polarity defined by dot marking indicating Pin 1 (cathode). Odd-numbered pins are cathodes per internal TVS element.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line; conducts during overvoltage to shunt current to ground |
| Pin 2 | Anode | Common anode node tied to system ground or low-impedance return path |
| Pin 3 | Cathode | Second independent cathode terminal for dual-line or differential protection layout |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables robust protection against high-energy transients like inductive switch-off spikes in motor controls |
| 10/1000 µs waveform compliance | Validated for IEC61000-4-5 Class 1–4 secondary lightning testing with 2–42 Ω source impedance |
| RoHS-compliant e3 marking | Meets global environmental regulations without lead or hazardous substance exemptions |
| MIL-PRF-19500 screening option | Supports high-reliability programs requiring lot traceability, burn-in, and parametric screening |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and floor-life constraints for SMT assembly |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensing lines against switching-induced transients in 48 V DC bus inverters. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between MOSFET gate and source to limit dv/dt-induced latch-up. Use Value: 27.6 V clamping ensures gate oxide remains below 30 V stress threshold during 106.6 A surges. | Use Scenario: Input-stage overvoltage suppression on −48 V telecom rectifier outputs exposed to load dump events. IC Role / Device Role / Timing Role: Primary surge shunt on DC input rail before DC/DC converter stage. Use Value: 3000 W rating handles 10/1000 µs pulses up to 106.6 A without degradation. |
| Railway Signaling Interfaces | Renewable Energy Inverters |
Use Scenario: Protection of RS-485 transceivers in track-side signaling units subjected to induced lightning surges. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional array used in back-to-back configuration for common-mode surge suppression. Use Value: Sub-100 ps response captures fast-rising edge transients before transceiver IC damage occurs. | Use Scenario: DC-link overvoltage clamping in solar string inverters during rapid PV array disconnection events. IC Role / Device Role / Timing Role: Parallel-connected TVS on 600–1000 V DC bus to absorb stored inductor energy. Use Value: 150 °C max junction temperature allows operation in sealed outdoor enclosures without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ17A | 600 W PPP rating, same VWM and package; lower clamping (27.7 V) but reduced surge capacity | Suitable for lower-energy ESD/EFT-only use; not rated for IEC61000-4-5 Class 4 lightning | Select when cost and board space constrain design, and surge threat level is limited to <100 A IPP |
| 1.5KE17A | Through-hole DO-201 package, 1500 W PPP, higher clamping (27.8 V), no MIL screening option | Used where manual assembly or legacy through-hole infrastructure exists; lacks SMT reliability and thermal performance | Choose only for prototyping or low-volume repairs where reflow compatibility is not required |
Compared with SMBJ17A and 1.5KE17A, the MDA3KP17A delivers 2× higher surge power handling, factory traceability, and validated IEC61000-4-5 Class 4 compliance - making it the sole choice for high-reliability industrial and transportation systems requiring sustained 3000 W transient absorption.
Availability
MDA3KP17A is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and railway signaling interfaces requiring stable component supply, long-term lifecycle support, and consistent surge performance across production batches.
Supply support for MDA3KP17A 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 MDA3KP series was developed specifically for mission-critical overvoltage protection in harsh-environment power systems where failure is not acceptable - emphasizing surge endurance, thermal stability, and process-controlled reliability.
FAQ
What is the clamping voltage of MDA3KP17A at its rated peak pulse current?
The MDA3KP17A has a maximum clamping voltage (VC) of 27.6 V at its rated peak pulse current (IPP) of 106.6 A under 10/1000 µs waveform conditions. This value is guaranteed per the datasheet's electrical characteristics table and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The MDA3KP17A maintains this clamping performance across its full operating temperature range.
Is MDA3KP17A RoHS compliant and what does the 'e3' marking indicate?
Yes, MDA3KP17A is RoHS compliant, as confirmed by the 'e3' suffix in its full part marking per Microsemi's nomenclature guide. The 'e3' designation specifies annealed matte-tin plating meeting J-STD-020B Level 1 moisture sensitivity and eliminating lead, cadmium, mercury, hexavalent chromium, PBB, and PBDE substances. This ensures compatibility with modern lead-free reflow processes and global environmental regulations.
Can MDA3KP17A be used for bidirectional transient protection?
No, MDA3KP17A is unidirectional - indicated by the absence of 'C' suffix in its part number. For bidirectional protection, Microsemi offers the MDA3KP17CA variant. Using MDA3KP17A in AC or bipolar signal paths risks forward conduction during negative transients, potentially causing malfunction or damage. Always match polarity type to system voltage architecture.
What is the standoff voltage rating and how does it relate to system operating voltage?
The MDA3KP17A has a rated reverse standoff voltage (VWM) of 17 V, meaning it remains non-conductive up to this DC or peak AC voltage. System operating voltage must be ≤17 V to avoid leakage or premature conduction. For example, it is appropriate for 15 V logic rails or 12 V automotive systems with margin, but not for 24 V nominal buses without derating or series impedance.
Does MDA3KP17A require special PCB layout considerations?
Yes - MDA3KP17A requires low-inductance layout to preserve its sub-100 ps response. Keep traces short and wide between pins and protected nodes, minimize loop area to ground, and place it as close as possible to the connector or IC input being protected. Avoid vias in the main current path. The MDA3KP17A datasheet provides recommended pad layout dimensions on page 7 to ensure thermal and electrical integrity during 3000 W surges.
MADA3KP17A 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:
- 8
- Bidirectional Channels:
- -
- 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:
- -
MADA3KP17A FAQ
1.How can I place an order for MADA3KP17A through Aetrix?
Please submit a Request for Quotation (RFQ) for MADA3KP17A 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 MADA3KP17A reliable?
The price and inventory of MADA3KP17A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MADA3KP17A is usually 5 days.
3.What payment methods are accepted for MADA3KP17A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MADA3KP17A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MADA3KP17A?
MADA3KP17A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MADA3KP17A 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 MADA3KP17A?
For technical support, including MADA3KP17A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MADA3KP17A requirements.
6.How does Aetrix verify that MADA3KP17A is sourced from the original manufacturer or authorized distributors?
All MADA3KP17A 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 MADA3KP17A meets industry standards.
7.What is the process for return or replacement of MADA3KP17A?
All MADA3KP17A units undergo pre-shipment inspection (PSI). If there is an issue with MADA3KP17A, 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 MADA3KP17A part is unused and in its original packaging.
Return procedure for MADA3KP17A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MADA3KP17A Tags
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