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Microchip Technology MDA3KP30A
- Part No.:
- MDA3KP30A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP30A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:6,038
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Product details
Overview
MDA3KP30A 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 30 V reverse standoff voltage (VWM), 33.3–36.8 V breakdown voltage (V(BR)), 48.4 V maximum clamping voltage at 62 A peak pulse current, and operates across –55 °C to +150 °C junction temperature. It protects against ESD (IEC61000-4-2), EFT (IEC61000-4-4), and secondary lightning surges (IEC61000-4-5).
For engineers reviewing the MDA3KP30A datasheet, MDA3KP30A pinout, MDA3KP30A application, or MDA3KP30A equivalent, this device is selected for robust surge immunity in industrial power supplies, telecom interfaces, and automotive control modules where fast response (<100 ps), low standby leakage (<2 µA), and MIL-PRF-19500 upscreening capability are critical design requirements.
Technical Context
The MDA3KP30A employs silicon avalanche diode technology with a unidirectional polarity configuration, enabling precise clamping of positive transients while blocking reverse conduction. Its 10/1000 µs waveform rating delivers 3000 W peak pulse power handling with <100 ps response time and 48.4 V clamping at 62 A IPP.
It complies with IEC61000-4-2 (ESD), IEC61000-4-4 (EFT), and IEC61000-4-5 (lightning) under 42 Ω, 12 Ω, and 2 Ω source impedances - supporting Class 1–4 protection per impedance condition. Standby current is limited to ≤2 µA at 30 V, ensuring minimal system loading during normal operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous DC or peak AC voltage the device blocks without clamping |
| V(BR) min/max | 33.3–36.8 V - Breakdown occurs within this range at 1 mA, defining reliable turn-on threshold |
| VC @ IPP | 48.4 V - Clamping voltage seen by protected circuit at 62 A surge, limiting stress on downstream components |
| IPP | 62.0 A - Peak surge current supported at 10/1000 µs waveform, directly tied to 3000 W power rating |
| ID @ VWM | ≤2 µA - Ultra-low leakage ensures negligible power loss and no interference with high-impedance sensing nodes |
| TJ/TSTG | –55 °C to +150 °C - Extended thermal range supports deployment in under-hood automotive and industrial environments |
| Response time | <100 ps - Near-instantaneous avalanche response prevents transient energy from reaching sensitive ICs |
Pinout & Package
MDA3KP30A uses a 3-pin surface-mount package with void-free UL94V-0 epoxy body and tin-lead or matte-tin plating. Pin 1 is marked by a dot on top; odd-numbered pins (1 and 3) are cathodes per TVS element. The device integrates two back-to-back configured unidirectional TVS elements in a single package.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode of first TVS element | Connected to protected line; conducts surge current to ground when voltage exceeds V(BR) |
| Pin 2 | Anode common node | Shared anode connection between both TVS elements; typically tied to system ground |
| Pin 3 | Cathode of second TVS element | Provides dual-line protection capability; enables bidirectional-like layout with unidirectional devices |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables single-device protection against severe lightning-induced surges (IEC61000-4-5 Class 4 at 42 Ω) |
| Unidirectional construction | Prevents reverse conduction while delivering precise clamping for positive-going transients only |
| MIL-PRF-19500 screening option | Supports high-reliability programs requiring lot traceability, 3σ ID screening, and wafer-level conformance |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints, simplifying SMT assembly logistics |
| UL94V-0 epoxy case | Ensures flame-retardant housing suitable for safety-critical power and telecom infrastructure |
Applications
| Industrial Power Supply Protection | Telecom Line Interface |
|---|---|
Use Scenario: 24 V DC input rail in programmable logic controllers exposed to inductive switching noise and load dump events. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converters and microcontrollers. Use Value: Limits transient voltage to ≤48.4 V during 62 A surges, preventing latch-up or gate oxide damage in downstream ICs. | Use Scenario: RS-485 data lines in outdoor base stations subjected to induced RF and nearby lightning strikes. IC Role / Device Role / Timing Role: Line-side TVS array protecting transceivers from differential-mode surges. Use Value: Sub-100 ps response captures fast-rising edges before they propagate into the PHY layer, preserving signal integrity. |
| Automotive Body Control Module | Renewable Energy Inverter Input |
Use Scenario: 12 V battery-supplied BCM circuits encountering ISO 7637-2 pulse 1 and pulse 2a transients. IC Role / Device Role / Timing Role: Unidirectional TVS on switched 12 V supply feeding MCU and CAN transceivers. Use Value: Withstands 3000 W surges while maintaining ≤2 µA leakage, avoiding battery drain in sleep mode. | Use Scenario: PV string input stage of solar inverters facing rapid voltage reversals and grid-switching spikes. IC Role / Device Role / Timing Role: DC-link surge protector between MPPT stage and H-bridge input. Use Value: 150 °C max junction temperature rating allows direct mounting near heat-generating power stages without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A | 600 W rating (vs. 3000 W); 45.7 V VC @ 13.9 A IPP; DO-214AA package | Lower power handling limits use to sub-1 kV surge environments; not suitable for IEC61000-4-5 Class 3/4 | Select SMBJ30A only for cost-sensitive, low-energy ESD/EFT-only applications with space-constrained layouts. |
| SMCJ30A | 1500 W rating (vs. 3000 W); 48.4 V VC @ 31.0 A IPP; DO-214AB package | Half the peak power capacity; requires parallel placement for equivalent lightning protection level | Choose SMCJ30A when board area permits dual-device implementation or when legacy footprint compatibility is mandatory. |
Compared with SMBJ30A and SMCJ30A, the MDA3KP30A delivers double the surge power handling of SMCJ30A and five times that of SMBJ30A in the same functional configuration - enabling single-device Class 4 lightning protection without layout redesign or paralleling complexity.
Availability
MDA3KP30A is available at Aetrix Electronics and suitable for industrial power supplies, telecom infrastructure, automotive control units, and renewable energy inverters requiring stable component supply and long-term lifecycle support.
Supply support for MDA3KP30A 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 meet stringent surge immunity requirements in mission-critical systems, emphasizing MIL-PRF-19500 compliance, wide temperature operation, and repeatable clamping performance under extreme transients.
FAQ
What is the clamping voltage of MDA3KP30A at its rated peak pulse current?
The MDA3KP30A has a maximum clamping voltage (VC) of 48.4 V at its rated peak pulse current (IPP) of 62.0 A under 10/1000 µs waveform conditions. This value is measured per standard test methods and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The MDA3KP30A maintains this clamping performance across its full operating temperature range.
Is MDA3KP30A RoHS compliant?
Yes, MDA3KP30A is RoHS compliant, indicated by the "e3" suffix in its full marking per Microsemi's nomenclature guide. The device uses annealed matte-tin or tin-lead plating compatible with lead-free soldering processes and meets JEDEC J-STD-020B moisture sensitivity Level 1 requirements without dry-pack conditioning.
Can MDA3KP30A be used for bidirectional transient protection?
No, MDA3KP30A is a unidirectional TVS device, as confirmed by its part number suffix "A" (not "C") and polarity specification stating odd-numbered pins are cathodes. For true bidirectional protection, Microsemi offers the MDA3KP30CA variant. Using MDA3KP30A in bidirectional configurations requires external circuitry such as back-to-back pairing.
What is the standoff voltage rating of MDA3KP30A, and how does it relate to system design?
The MDA3KP30A has a rated reverse standoff voltage (VWM) of 30 V, meaning it remains non-conductive up to this DC or peak AC voltage. System designers must ensure the normal operating voltage of the protected line stays at or below 30 V to prevent premature conduction. Exceeding VWM risks increased standby current and accelerated degradation.
Does MDA3KP30A require derating at elevated temperatures?
Yes, MDA3KP30A requires thermal derating above 25 °C ambient, as shown in Figure 3 of the datasheet. At 100 °C, its peak pulse power drops to approximately 60% of the 3000 W rating. Designers must consult the derating curve to determine usable IPP at operating temperature and ensure clamping voltage remains within safe margins for downstream components.
MDA3KP30A 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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 62A
- 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:
- -
MDA3KP30A FAQ
1.How can I place an order for MDA3KP30A through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP30A 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 MDA3KP30A reliable?
The price and inventory of MDA3KP30A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP30A is usually 5 days.
3.What payment methods are accepted for MDA3KP30A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP30A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP30A?
MDA3KP30A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP30A 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 MDA3KP30A?
For technical support, including MDA3KP30A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP30A requirements.
6.How does Aetrix verify that MDA3KP30A is sourced from the original manufacturer or authorized distributors?
All MDA3KP30A 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 MDA3KP30A meets industry standards.
7.What is the process for return or replacement of MDA3KP30A?
All MDA3KP30A units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP30A, 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 MDA3KP30A part is unused and in its original packaging.
Return procedure for MDA3KP30A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MDA3KP30A Tags
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