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Microchip Technology MDA3KP17A
- Part No.:
- MDA3KP17A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP17A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:9,530
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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 secondary lightning and ESD protection in power supply inputs, telecom interfaces, and industrial control I/O. 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.
For engineers reviewing the MDA3KP17A datasheet, MDA3KP17A pinout, MDA3KP17A application, or MDA3KP17A equivalent, key selection criteria include clamping performance under 10/1000 µs surge, standoff voltage margin relative to system DC rail, thermal derating above 25 °C, and compatibility with IPC/JEDEC J-STD-020B Level 1 moisture sensitivity handling.
Technical Context
The MDA3KP17A is a single-channel, unidirectional TVS diode optimized for fast transient suppression in DC power rails and signal lines subject to IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (lightning) stress. Its sub-100 ps response time ensures clamping before sensitive downstream circuitry sustains damage.
It delivers 3000 W peak pulse power at 10/1000 µs waveform with 27.6 V clamping voltage at 106.6 A IPP, and maintains <2 µA standby current at 17 V VWM - enabling low-power system monitoring without leakage-induced drift.
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 - defines precise turn-on threshold for reliable overvoltage triggering |
| VC @ IPP | 27.6 V @ 106.6 A - clamping voltage seen by protected circuit during worst-case 10/1000 µs surge |
| IPP | 106.6 A - peak surge current the device safely shunts while maintaining specified VC |
| ID @ VWM | <2 µA - negligible leakage at rated standoff, critical for battery-backed or low-quiescent systems |
| TJ range | –55 °C to +150 °C - supports operation in harsh industrial, aerospace, and automotive under-hood environments |
| Moisture Sensitivity | Level 1 per J-STD-020B - no dry pack or bake required prior to reflow soldering |
Pinout & Package
MDA3KP17A uses a 2-pin DO-214AB (SMC) surface-mount package with cathode-marked lead (dot on top, Pin 1 = cathode). The thermoset epoxy case meets UL94V-0 flammability rating and weighs ~5 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line; conducts surge current to ground when voltage exceeds V(BR) |
| Pin 2 | Anode | Typically tied to system ground or low-impedance return path for unidirectional clamping |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables robust protection against high-energy transients including IEC 61000-4-5 Class 4 lightning surges with 42 Ω source impedance |
| Sub-100 ps response time | Clamps ESD events before logic-level ICs experience latch-up or gate oxide rupture |
| Wafer and assembly lot traceability | Supports MIL-PRF-19500 upscreening for aerospace and defense programs requiring full process pedigree |
| RoHS-compliant e3 marking | Meets global environmental compliance requirements without compromising surge performance or thermal stability |
| 100% surge tested | Each unit validated to withstand full-rated 10/1000 µs pulse, ensuring field reliability in mission-critical applications |
Applications
| Industrial PLC I/O Protection | Telecom DC Power Input |
|---|---|
Use Scenario: 24 V DC input stage of programmable logic controller exposed to inductive kickback and nearby lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between input terminal and ground plane. Use Value: Limits transient voltage to ≤27.6 V during 106.6 A surges, preventing damage to upstream DC-DC converter and downstream microcontroller power rails. | Use Scenario: –48 V telecom power feed entering base station equipment, subject to EFT bursts and secondary lightning coupling. IC Role / Device Role / Timing Role: Primary overvoltage clamp on bulk power entry point ahead of hot-swap controller and filtering. Use Value: Absorbs 3000 W pulses without degradation, maintaining system uptime during repeated surge events per IEC 61000-4-4 and -4-5. |
| Automotive Body Control Module | Medical Equipment Power Entry |
Use Scenario: 12 V battery-supplied body control module subjected to load dump and ISO 7637-2 Pulse 5a transients. IC Role / Device Role / Timing Role: Front-line transient suppressor on main power rail, coordinated with upstream fuse and downstream LDO. Use Value: Clamps to 27.6 V within 100 ps, limiting stress on 36 V-rated power management ICs and preserving functional safety integrity. | Use Scenario: AC/DC power supply input of diagnostic imaging equipment requiring immunity to hospital-grade ESD and conducted RF interference. IC Role / Device Role / Timing Role: Final-stage TVS on primary-side rectified DC bus before isolation transformer. Use Value: Provides <2 µA leakage at 17 V, avoiding measurement drift in precision analog front-ends while surviving 15 kV contact ESD per IEC 61000-4-2. |
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 rating, 20.9 V V(BR), 27.6 V VC @ 21.5 A IPP - lower energy handling | Suitable for lower-energy ESD/EFT only; not rated for IEC 61000-4-5 Class 3/4 lightning | Select MDA3KP17A when 3000 W surge capability and MIL-PRF-19500 screening are required. |
| 1.5KE17A | Through-hole TO-204AA package, same VWM/V(BR)/VC specs, but 1000 W rating and higher thermal mass | Compatible with legacy through-hole assembly; less suitable for high-density SMT layouts | Choose MDA3KP17A for surface-mount production, automated reflow, and space-constrained designs. |
Compared with SMBJ17A and 1.5KE17A, the MDA3KP17A delivers triple the peak pulse power in an SMC package with verified MIL-PRF-19500 upscreening eligibility, making it uniquely suited for high-reliability industrial and aerospace power rail protection where both energy capacity and process traceability are mandatory.
Availability
MDA3KP17A is available at Aetrix Electronics and suitable for industrial PLC I/O protection, telecom DC power input, automotive body control modules, and medical equipment power entry requiring stable component supply and long-term lifecycle support.
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) 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 surface-mount form factors, targeting applications demanding certified surge resilience and full process traceability beyond standard JEDEC requirements.
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 manufacturer's electrical characteristics table and represents the upper limit of voltage imposed on the protected circuit during worst-case surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is MDA3KP17A RoHS compliant and what does the 'e3' marking indicate?
Yes, MDA3KP17A is RoHS compliant, indicated by the 'e3' suffix in its marking per Microsemi's nomenclature guide. The 'e3' designation confirms matte-tin plating on terminals and full compliance with Directive 2011/65/EU, including restrictions on lead, cadmium, mercury, hexavalent chromium, PBB, and PBDE - verified through material declarations and third-party testing.
Can MDA3KP17A be used for bidirectional transient protection?
No, MDA3KP17A is unidirectional only. Bidirectional variants carry a 'C' suffix (e.g., MDA3KP17CA). The MDA3KP17A's polarity is fixed: Pin 1 is cathode, Pin 2 is anode. Using it in reverse-biased configuration for AC line protection would result in forward conduction and failure - always confirm polarity alignment with system grounding topology before layout.
What is the maximum operating temperature range for MDA3KP17A?
The MDA3KP17A is rated for junction and storage temperatures from –55 °C to +150 °C. This wide range enables deployment in under-hood automotive, outdoor telecom enclosures, and industrial motor drives. Derating of peak pulse power begins above 25 °C per Figure 3 in the datasheet, reaching ~50% capacity at +125 °C ambient.
Does MDA3KP17A require moisture-sensitive handling prior to reflow soldering?
No, MDA3KP17A is classified as Moisture Sensitivity Level 1 per IPC/JEDEC J-STD-020B, meaning it may be stored indefinitely at ≤30 °C/60% RH without dry packing or baking. This eliminates pre-reflow moisture mitigation steps, reducing manufacturing complexity and cost for high-volume SMT assembly of the MDA3KP17A.
MDA3KP17A 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:
- -
MDA3KP17A FAQ
1.How can I place an order for MDA3KP17A through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP17A 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 MDA3KP17A reliable?
The price and inventory of MDA3KP17A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP17A is usually 5 days.
3.What payment methods are accepted for MDA3KP17A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP17A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP17A?
MDA3KP17A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP17A 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 MDA3KP17A?
For technical support, including MDA3KP17A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP17A requirements.
6.How does Aetrix verify that MDA3KP17A is sourced from the original manufacturer or authorized distributors?
All MDA3KP17A 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 MDA3KP17A meets industry standards.
7.What is the process for return or replacement of MDA3KP17A?
All MDA3KP17A units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP17A, 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 MDA3KP17A part is unused and in its original packaging.
Return procedure for MDA3KP17A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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