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Microchip Technology MDA3KP26A
- Part No.:
- MDA3KP26A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP26A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:6,890
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Product details
Overview
MDA3KP26A from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array designed for high-reliability secondary lightning and ESD protection in industrial power interfaces. It features a 26 V reverse standoff voltage (VWM), 28.9–31.9 V breakdown voltage (V(BR)), 42.1 V maximum clamping voltage at 71.2 A peak pulse current, and operates from −55 °C to +150 °C.
For engineers reviewing the MDA3KP26A datasheet, MDA3KP26A pinout, MDA3KP26A application, or MDA3KP26A equivalent, key selection criteria include clamping performance under IEC61000-4-5 (42 Ω source), standby leakage (<2 µA at 26 V), 100 ps response time, RoHS-compliant e3 matte-tin termination, and MIL-PRF-19500 upscreening eligibility.
Technical Context
The MDA3KP26A is a single-channel, unidirectional TVS diode optimized for fast transient suppression in DC power rails and signal lines subject to lightning-induced surges and switching transients. Its silicon avalanche structure delivers sub-100 ps response and clamps reliably at 42.1 V when subjected to a 10/1000 µs 71.2 A impulse.
It complies with IEC61000-4-2 (ESD), IEC61000-4-4 (EFT), and IEC61000-4-5 (secondary lightning) across Class 1–4 with 42 Ω source impedance. The device is rated for 3000 W peak pulse power and exhibits <2 µA leakage at VWM, enabling low-power system integration without standby current penalty.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - Maximum continuous DC or peak AC voltage the device blocks without conduction |
| V(BR) min/max | 28.9–31.9 V @ 1 mA - Ensures reliable avalanche initiation before system overvoltage damage occurs |
| VC @ IPP | 42.1 V @ 71.2 A - Clamping voltage during full 10/1000 µs surge, defining protected circuit's maximum stress level |
| ID @ VWM | <2 µA - Negligible leakage in standby, critical for battery-powered or low-power monitoring circuits |
| PPP | 3000 W @ 10/1000 µs - Sustains high-energy transients common in industrial motor drives and telecom power supplies |
| TJ/TSTG | −55 °C to +150 °C - Supports operation in harsh environments including automotive engine bays and outdoor base stations |
| Response time | <100 ps - Faster than most microcontroller GPIO protection requirements, enabling direct IC-level safeguarding |
Pinout & Package
MDA3KP26A uses a 2-pin DO-214AB (SMC) package with void-free UL94V-0 epoxy body and matte-tin (e3) terminations. Pin 1 is cathode, marked by a dot on top of the package; polarity follows standard unidirectional TVS convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line; conducts during overvoltage to shunt current to ground or rail |
| Pin 2 | Anode | Typically tied to ground or lower-potential reference; completes current path during clamping |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse rating | Enables robust protection against high-energy lightning surges per IEC61000-4-5 Class 4 (42 Ω source) |
| RoHS-compliant e3 plating | Matte-tin termination ensures solderability and long-term intermetallic stability without lead-based alloys |
| MIL-PRF-19500 screening option | Supports high-reliability programs requiring wafer lot traceability, 3σ ID screening, and surge testing |
| Moisture sensitivity Level 1 | No dry pack or baking required prior to reflow, simplifying SMT assembly and reducing process risk |
| Unidirectional configuration | Optimized for DC-biased lines where reverse polarity protection is unnecessary, minimizing capacitance vs. bidirectional types |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of DC bus inputs against inductive kickback from contactor switching and grid transients. IC Role / Device Role / Timing Role: Primary clamping element placed between input rectifier output and bulk capacitor. Use Value: Limits voltage overshoot to ≤42.1 V during 71.2 A surges, preventing MOSFET gate oxide rupture and electrolytic capacitor overvoltage failure. | Use Scenario: Input-stage surge suppression in -48 V telecom rectifiers exposed to lightning-induced surges on copper distribution lines. IC Role / Device Role / Timing Role: First-line defense upstream of DC/DC converters and hot-swap controllers. Use Value: Withstands 3000 W impulses per IEC61000-4-5 (42 Ω source), maintaining system uptime during multi-kA surge events. |
| Automotive Body Control Modules | Renewable Energy Inverters |
Use Scenario: Protection of 24 V battery-fed microcontroller I/O and sensor supply lines in engine compartments. IC Role / Device Role / Timing Role: Localized TVS on each power rail entry point, mounted adjacent to connectors. Use Value: −55 °C to +150 °C operating range and <2 µA leakage ensure reliability in thermal cycling environments without degrading sleep-mode current budgets. | Use Scenario: DC-link surge protection in solar string inverters subjected to induced transients from nearby lightning strikes. IC Role / Device Role / Timing Role: Parallel-connected array across PV input terminals to clamp common-mode surges. Use Value: 42.1 V clamping voltage allows use with 30 V-rated DC-link capacitors while meeting IEC61000-4-5 Class 3 (12 Ω source) requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ26A | 600 W PPP rating, same VWM and VC, DO-214AA package (smaller footprint) | Lower energy handling limits use to Class 2/3 IEC61000-4-5 only; unsuitable for 3 kA+ surge environments | Select when board space is constrained and surge threat level is limited to ESD/EFT or low-energy switching transients |
| 1.5KE27A | 1500 W PPP, axial-leaded DO-15 package, higher leakage (5 µA), no MIL screening option | Lacks surface-mount compatibility and high-reliability qualification; requires through-hole assembly and manual inspection | Choose for cost-sensitive prototyping or legacy through-hole designs where reflow compatibility is not required |
Compared with SMBJ26A and 1.5KE27A, the MDA3KP26A delivers double the surge energy capacity of SMBJ26A and triple that of 1.5KE27A while supporting automated SMT placement, MIL-PRF-19500 upscreening, and zero dry-pack handling-making it the preferred choice for mission-critical industrial and telecom deployments.
Availability
MDA3KP26A is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and renewable energy inverters requiring stable component supply across extended product lifecycles.
Supply support for MDA3KP26A 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 address demanding surge immunity requirements in safety-critical infrastructure, emphasizing MIL-PRF-19500 compliance, full 3000 W 10/1000 µs capability, and extended temperature operation.
FAQ
What is the clamping voltage of MDA3KP26A at its rated peak pulse current?
The MDA3KP26A has a maximum clamping voltage (VC) of 42.1 V at its rated peak pulse current (IPP) of 71.2 A under 10/1000 µs waveform conditions. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events and is verified per Figure 2 in the RF01243 datasheet.
Is MDA3KP26A RoHS compliant and what plating does it use?
Yes, MDA3KP26A is RoHS compliant (e3 designation), featuring annealed matte-tin plating on its terminations. This plating meets MIL-STD-750 Method 2026 for solderability and eliminates lead content while ensuring intermetallic stability during multiple reflow cycles.
Can MDA3KP26A be used for IEC61000-4-5 Class 4 secondary lightning protection?
Yes, MDA3KP26A is qualified for IEC61000-4-5 Class 4 secondary lightning protection when tested with a 42 Ω source impedance, as confirmed in the Applications/Benefits section of RF01243 Rev B. Its 3000 W peak pulse rating and 42.1 V clamping voltage meet the 3 kA test current requirement.
What is the maximum standoff voltage and leakage current for MDA3KP26A?
The MDA3KP26A has a rated reverse standoff voltage (VWM) of 26 V and a maximum standby current (ID) of 2 µA at that voltage and 25 °C. This low leakage supports integration into always-on monitoring circuits without compromising battery life or system quiescent power budgets.
Does MDA3KP26A require moisture-sensitive handling or dry packing before reflow?
No, MDA3KP26A is rated Moisture Sensitivity Level 1 per IPC/JEDEC J-STD-020B, meaning it may be stored indefinitely at ambient conditions and placed directly into reflow without baking or dry pack. This simplifies manufacturing logistics and reduces SMT defect risk.
MDA3KP26A 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):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 42.1V
- Current - Peak Pulse (10/1000µs):
- 71.2A
- 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:
- -
MDA3KP26A FAQ
1.How can I place an order for MDA3KP26A through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP26A 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 MDA3KP26A reliable?
The price and inventory of MDA3KP26A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP26A is usually 5 days.
3.What payment methods are accepted for MDA3KP26A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP26A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP26A?
MDA3KP26A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP26A 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 MDA3KP26A?
For technical support, including MDA3KP26A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP26A requirements.
6.How does Aetrix verify that MDA3KP26A is sourced from the original manufacturer or authorized distributors?
All MDA3KP26A 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 MDA3KP26A meets industry standards.
7.What is the process for return or replacement of MDA3KP26A?
All MDA3KP26A units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP26A, 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 MDA3KP26A part is unused and in its original packaging.
Return procedure for MDA3KP26A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MDA3KP26A Tags
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