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Microchip Technology MDA3KP10A
- Part No.:
- MDA3KP10A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP10A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,077
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Product details
Overview
MDA3KP10A from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 10 V standoff voltage (VWM), 11.1–12.3 V breakdown voltage (V(BR)), and 17.0 V clamping voltage (VC) at 176.4 A peak pulse current. It provides secondary lightning protection per IEC61000-4-5 (42 Ω, Class 1–4), ESD/EFT suppression per IEC61000-4-2/4-4, and inductive switching transient protection in industrial power interfaces.
For engineers reviewing the MDA3KP10A datasheet, MDA3KP10A pinout, MDA3KP10A application, or MDA3KP10A equivalent, key selection criteria include standoff voltage matching system DC rail, clamping margin relative to protected IC absolute maximum ratings, surge current capability under 10/1000 µs waveform, and thermal derating above 25 °C per Figure 3.
Technical Context
The MDA3KP10A operates as a silicon avalanche diode-based unidirectional TVS, triggered when reverse voltage exceeds its 11.1–12.3 V breakdown range. Its <100 ps response time enables sub-nanosecond clamping onset, limiting transient energy delivered to downstream circuitry before damage occurs.
Designed for high-reliability vertical mounting, it delivers 3000 W peak pulse power at 10/1000 µs, with full surge testing per lot and wafer-level traceability compliant with MIL-PRF-19500 screening options. Clamping voltage remains stable up to 176.4 A IPP while maintaining ≤5 µA standby current at 10 V VWM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before conduction begins; must exceed system's peak DC rail voltage. |
| V(BR) min–max | 11.1–12.3 V @ 1 mA - Confirmed avalanche initiation window; ensures predictable turn-on across temperature and lot variation. |
| VC @ IPP | 17.0 V @ 176.4 A - Maximum clamped voltage during 10/1000 µs surge; defines worst-case overvoltage seen by protected ICs. |
| PPP | 3000 W @ 10/1000 µs - Peak transient energy absorption capacity; validated with impulse repetition ≤0.05% duty cycle. |
| ID @ VWM | 5 µA - Leakage current at rated standoff; low enough to avoid loading sensitive analog or battery-backed circuits. |
| TJ/TSTG | −55 to +150 °C - Full military-grade junction/storage temperature range; supports operation in harsh industrial or aerospace enclosures. |
Pinout & Package
MDA3KP10A uses a 3-pin TO-277A (SMB) package with cathode-anode-cathode terminal configuration. Pin 1 (cathode) and Pin 3 (cathode) are electrically common; Pin 2 is the anode. Polarity is marked by a dot on the top surface adjacent to Pin 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Common cathode connection for unidirectional TVS operation; ties to protected line being clamped to ground. |
| Pin 2 | Anode | Ground reference node; must be low-inductance path to system ground plane to maintain clamping integrity. |
| Pin 3 | Cathode | Electrically tied to Pin 1; enables dual-line or differential protection layout without external parallel wiring. |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables robust protection against severe transients including secondary lightning surges (IEC61000-4-5 Class 4, 42 Ω source). |
| Unidirectional construction | Allows DC-biased line protection without forward conduction during normal operation; avoids signal distortion on powered lines. |
| MIL-PRF-19500 screening option | Supports high-reliability programs requiring wafer lot traceability, 3σ ID screening, and extended environmental qualification. |
| Moisture Level 1 rating | Eliminates dry-pack requirement and bake-out prior to reflow; simplifies SMT assembly and reduces manufacturing cost. |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
Use Scenario: Protection of 24 V DC input stage in variable-frequency drives exposed to inductive kickback from contactor switching and long cable runs. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between DC+ and chassis ground to limit transients to <17.0 V during 176.4 A surges. Use Value: Prevents gate oxide damage to IGBT drivers and MCU reset events caused by >20 V spikes exceeding supply rail tolerance. | Use Scenario: Surge protection on −48 V telecom power feed entering remote radio head enclosures subject to lightning-induced coupling. IC Role / Device Role / Timing Role: Cathode-to-line configuration clamps negative-going surges to −17.0 V while blocking normal −48 V bias. Use Value: Maintains uninterrupted operation during IEC61000-4-5 Class 3 (12 Ω source) events without latch-up or degradation. |
| Medical Imaging Power Supplies | Transportation Control Units |
Use Scenario: Input protection for isolated DC/DC converters powering X-ray detector ASICs, where ESD immunity and low leakage are critical. IC Role / Device Role / Timing Role: Standby current ≤5 µA prevents loading of high-impedance bias networks; clamps EFT bursts per IEC61000-4-4. Use Value: Eliminates false triggering in analog front-end circuits while sustaining >100,000 surge cycles without parameter drift. | Use Scenario: CAN bus power line protection in rail signaling controllers subjected to traction current transients and ESD from operator panels. IC Role / Device Role / Timing Role: Mounted directly at connector entry point to shunt 10/1000 µs surges before reaching DC-DC regulator input. Use Value: Ensures functional safety compliance (IEC61508 SIL2) by preventing single-point failure in 24 V supply monitoring circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | 600 W PPP rating, 10 V VWM, 17.0 V VC @ 35.3 A IPP - lower surge capacity and current handling. | Targeted at consumer-grade or low-energy signal lines; insufficient for industrial 3000 W surge requirements. | Select SMAJ10A only when peak transient energy is <600 W and PCB space constraints prohibit SMB footprint. |
| SMCJ10A | 1500 W PPP rating, 10 V VWM, 17.0 V VC @ 88.2 A IPP - half the power rating and current capability of MDA3KP10A. | Suitable for mid-tier industrial equipment with moderate surge exposure; not qualified to MIL-PRF-19500. | Choose SMCJ10A if cost sensitivity outweighs need for full 3000 W rating and high-reliability screening. |
Compared with SMAJ10A and SMCJ10A, the MDA3KP10A delivers double the surge current (176.4 A vs. 88.2 A) and twice the peak power (3000 W vs. 1500 W), with optional MIL-PRF-19500 screening and full lot traceability-making it the only choice for mission-critical infrastructure where transient severity and reliability assurance are non-negotiable.
Availability
MDA3KP10A is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, medical imaging power supplies, and transportation control units requiring stable component supply across extended production lifecycles.
Supply support for MDA3KP10A 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 MDA series was developed specifically for high-energy transient suppression in safety-critical systems, emphasizing MIL-PRF-19500 compliance, full surge validation, and vertical-mount mechanical robustness in harsh environments.
FAQ
What is the clamping voltage of MDA3KP10A at its rated peak pulse current?
The MDA3KP10A has a maximum clamping voltage (VC) of 17.0 V at its rated peak pulse current (IPP) of 176.4 A under 10/1000 µs waveform conditions. This value is measured per Figure 2 in the RF01243 datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The MDA3KP10A maintains this clamping performance across its full operating temperature range when mounted with adequate thermal relief.
Is MDA3KP10A RoHS-compliant and what does the 'e3' suffix indicate?
Yes, MDA3KP10A is RoHS-compliant, as indicated by the 'e3' marking on the device body per the part nomenclature on page 2 of RF01243. The 'e3' designation confirms matte-tin plating meeting JEDEC J-STD-609A Class 3 requirements and absence of lead, cadmium, mercury, hexavalent chromium, PBB, and PBDE substances above threshold limits. The MDA3KP10A meets all applicable RoHS directives without exemption requests.
How does MDA3KP10A differ from bidirectional variants like MDA3KP10CA?
The MDA3KP10A is unidirectional and conducts only during reverse-voltage transients, making it suitable for DC-biased lines such as positive power rails. In contrast, MDA3KP10CA is bidirectional and clamps both polarities, intended for AC lines or data buses. The MDA3KP10A's forward clamping voltage is specified at 4.0 V @ 500 A, whereas MDA3KP10CA has symmetric clamping behavior. Selection depends strictly on signal polarity and biasing requirements.
Can MDA3KP10A be used for IEC61000-4-5 Class 4 lightning protection?
Yes, MDA3KP10A is explicitly rated for IEC61000-4-5 Class 4 secondary lightning protection with 42 Ω source impedance, as confirmed in the Applications/Benefits section of RF01243. Its 3000 W peak pulse power and 176.4 A IPP capability meet the 4 kV test level requirement. However, system-level compliance also requires proper PCB layout, grounding, and upstream filtering-MDA3KP10A alone satisfies only the device-level surge absorption requirement.
What is the thermal derating behavior of MDA3KP10A above 25 °C ambient?
MDA3KP10A follows the derating curve in Figure 3 of RF01243: peak pulse power decreases linearly from 100% at 25 °C to ~50% at 125 °C junction temperature. At 100 °C, PPP is reduced to approximately 75% of rated 3000 W. Designers must calculate actual junction temperature using thermal resistance (RθJA ≈ 25 °C/W for standard SMB pad layout) and ensure sustained operation stays within the −55 to +150 °C TJ range. The MDA3KP10A's 150 °C max TJ enables use in sealed enclosures without active cooling.
MDA3KP10A 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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 176.4A
- 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:
- -
MDA3KP10A FAQ
1.How can I place an order for MDA3KP10A through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP10A 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 MDA3KP10A reliable?
The price and inventory of MDA3KP10A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP10A is usually 5 days.
3.What payment methods are accepted for MDA3KP10A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP10A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP10A?
MDA3KP10A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP10A 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 MDA3KP10A?
For technical support, including MDA3KP10A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP10A requirements.
6.How does Aetrix verify that MDA3KP10A is sourced from the original manufacturer or authorized distributors?
All MDA3KP10A 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 MDA3KP10A meets industry standards.
7.What is the process for return or replacement of MDA3KP10A?
All MDA3KP10A units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP10A, 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 MDA3KP10A part is unused and in its original packaging.
Return procedure for MDA3KP10A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MDA3KP10A Tags
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