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Microchip Technology MXDA3KP22A
- Part No.:
- MXDA3KP22A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP22A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,815
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Product details
Overview
MXDA3KP22A from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 22 V standoff voltage (VWM), 24.4–26.9 V breakdown voltage (V(BR)), and 35.5 V maximum clamping voltage (VC) at 84.4 A peak pulse current (IPP). It provides secondary lightning protection per IEC61000-4-5 (42 Ω, 12 Ω, and 2 Ω source impedances), ESD/EFT suppression per IEC61000-4-2/4-4, and inductive switching transient protection in industrial power interfaces.
For engineers reviewing the MXDA3KP22A datasheet, MXDA3KP22A pinout, MXDA3KP22A application, or MXDA3KP22A equivalent, key selection criteria include its 22 V working voltage rating, sub-100 ps response time, 150 °C junction temperature capability, RoHS-compliant e3 matte-tin plating, and verified 3000 W surge handling at 10/1000 µs waveform - critical for robust front-end protection in telecom power supplies and motor drive control boards.
Technical Context
The MXDA3KP22A operates as a unidirectional avalanche diode-based TVS, designed to clamp transient overvoltages before they damage downstream circuitry. Its breakdown occurs at 24.4–26.9 V under 1 mA test current, with clamping limited to ≤35.5 V at 84.4 A IPP, ensuring safe voltage excursions during 3000 W surges.
It features a thermally robust transfer-molded epoxy package rated for -55 °C to +150 °C operation, moisture sensitivity level 1 (no dry pack required), and full lot traceability per MIL-PRF-19500 high-reliability screening options. Standby leakage is ≤2 µA at 22 V, supporting low-power system monitoring integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff Voltage) | 22 V - maximum continuous DC or peak AC voltage the device blocks without conduction |
| V(BR) Min/Max | 24.4 V / 26.9 V @ 1 mA - defines precise avalanche onset window for predictable turn-on behavior |
| VC @ IPP | 35.5 V @ 84.4 A - clamped voltage during worst-case 10/1000 µs surge, limiting stress on protected ICs |
| PPP | 3000 W @ 10/1000 µs - peak power dissipation capacity validated per Figure 1 and Table on p.3 |
| ID @ VWM | ≤2 µA - ultra-low leakage preserves signal integrity and battery life in always-on monitoring circuits |
| TJ Range | -55 °C to +150 °C - enables deployment in under-hood automotive, industrial PLC, and outdoor telecom enclosures |
Pinout & Package
MXDA3KP22A uses a 2-pin DO-214AB (SMC) surface-mount package with void-free UL94V-0 epoxy body, tin-lead or annealed matte-tin (e3) plating, and polarity defined by dot marking indicating Pin 1 (cathode). Weight ≈5 g; dimensions per Page 6: 21.03–22.05 mm × 6.86–7.87 mm × 8.64–9.65 mm (L×W×H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line; conducts during positive transients to ground or lower-potential rail |
| Pin 2 | Anode | Typically tied to system ground or return path; completes clamping current loop during surge events |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W Peak Pulse Power | Validated clamping performance at 10/1000 µs waveform ensures survivability against severe lightning-induced surges |
| Sub-100 ps Response Time | Enables effective suppression of fast-rising ESD events (IEC61000-4-2) before sensitive logic is damaged |
| MIL-PRF-19500 Screening Option | Supports high-reliability qualification including wafer/assembly lot traceability and 3σ ID screening |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and bake-out prior to reflow, reducing manufacturing overhead |
Applications
| Industrial Motor Drive Inputs | Telecom DC Power Feeds |
|---|---|
Use Scenario: Protection of rectified AC input stages and DC bus connections against inductive kickback and grid disturbances. IC Role / Device Role / Timing Role: Unidirectional TVS placed between line and chassis ground to clamp positive transients only. Use Value: Limits voltage to ≤35.5 V during 84.4 A surges, preventing gate oxide rupture in IGBT drivers and MCU reset corruption. | Use Scenario: Front-end surge protection on -48 V DC telecom power distribution boards exposed to lightning-induced coupling. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing secondary lightning energy per IEC61000-4-5 with 42 Ω source impedance (Class 1–4). Use Value: Maintains 22 V operating margin while delivering 3000 W peak power handling, enabling single-device compliance across multiple immunity classes. |
| Programmable Logic Controller I/O Modules | Renewable Energy Inverter DC Links |
Use Scenario: Input protection for isolated analog/digital sensor inputs subject to EFT bursts and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage (≤2 µA) TVS preserving signal fidelity while suppressing IEC61000-4-4 bursts up to 4 kV. Use Value: Prevents false triggering and latch-up in precision ADC front-ends without adding offset error or loading effects. | Use Scenario: DC link overvoltage suppression in solar string inverters where PV array transients couple into high-voltage bus rails. IC Role / Device Role / Timing Role: High-energy clamping device mounted directly across DC+ and DC−, rated for 150 °C ambient operation. Use Value: Sustains 3000 W surge dissipation at elevated temperatures, avoiding thermal runaway during repeated cloud-edge transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A | 600 W PPP rating, same VWM and VC, but lower IPP (32.4 A) and smaller SMB package | Lower energy handling limits use to Class 1–2 IEC61000-4-5 or non-lightning ESD/EFT only | Select when board space is constrained and surge threat level is moderate (e.g., internal board-level coupling) |
| 1.5KE22A | Through-hole TO-218 package, 1500 W PPP, higher thermal mass but no SMT compatibility | Requires manual assembly or wave soldering; unsuitable for high-density automated PCBs | Choose for legacy designs or where mechanical robustness outweighs assembly efficiency |
Compared with SMBJ22A and 1.5KE22A, MXDA3KP22A delivers 2× the peak power handling of SMBJ22A and 2× the surge current of 1.5KE22A in an SMT-compatible package, making it optimal for new industrial and telecom designs requiring Class 3–4 lightning immunity with automated manufacturing support.
Availability
MXDA3KP22A is available at Aetrix Electronics and suitable for industrial motor drives, telecom DC power feeds, and renewable energy inverter systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for MXDA3KP22A 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 engineered for mission-critical transient suppression in harsh environments, emphasizing MIL-PRF-19500 traceability, wide temperature operation, and validated 3000 W surge resilience - targeting power interface protection where failure is not an option.
FAQ
What is the clamping voltage of MXDA3KP22A at its rated peak pulse current?
The MXDA3KP22A exhibits a maximum clamping voltage (VC) of 35.5 V when subjected to its rated peak pulse current (IPP) of 84.4 A under 10/1000 µs waveform conditions. This value is measured per standard test methods in the RF01243 datasheet and ensures downstream components experience controlled overvoltage stress during surge events. The MXDA3KP22A maintains this clamping performance across its full operating temperature range.
Is MXDA3KP22A RoHS-compliant and what does the 'e3' marking indicate?
Yes, MXDA3KP22A is RoHS-compliant, as confirmed by the 'e3' suffix in its marking per Microsemi's nomenclature guide (Page 2). The 'e3' designation specifies annealed matte-tin plating meeting JEDEC J-STD-020B Level 1 moisture sensitivity requirements - eliminating the need for dry packing or baking prior to reflow soldering. This makes MXDA3KP22A compatible with standard lead-free assembly processes.
Can MXDA3KP22A be used for bidirectional transient protection?
No, MXDA3KP22A is a unidirectional TVS device, as indicated by the absence of the 'C' suffix in its part number. Bidirectional variants (e.g., MXDA3KP22CA) are separately specified in the MDA3KP family. Using MXDA3KP22A for bidirectional protection would leave negative-going transients unclamped; correct polarity orientation (cathode to protected line) is mandatory for proper function.
What is the maximum operating temperature for MXDA3KP22A and how does it affect derating?
MXDA3KP22A has a junction/storage temperature range of -55 °C to +150 °C. Per Figure 3 in the RF01243 datasheet, its peak pulse power must be linearly derated above +25 °C ambient - for example, at +100 °C case temperature, usable PPP drops to ~65% of the 3000 W rating. This derating ensures thermal stability during repeated surge events in high-ambient environments like enclosed industrial cabinets.
How does MXDA3KP22A meet IEC61000-4-5 secondary lightning protection requirements?
MXDA3KP22A meets IEC61000-4-5 Class 1–4 secondary lightning protection when tested with 42 Ω source impedance, and Class 1–3 with 12 Ω, per the Applications/Benefits section (Page 1). Its 35.5 V clamping voltage at 84.4 A IPP ensures protected circuits remain below safe voltage thresholds during standardized 1.2/50 µs open-circuit voltage and 8/20 µs current waveforms, fulfilling immunity testing requirements for industrial and telecom infrastructure equipment.
MXDA3KP22A 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):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 84.4A
- 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:
- -
MXDA3KP22A FAQ
1.How can I place an order for MXDA3KP22A through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP22A 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 MXDA3KP22A reliable?
The price and inventory of MXDA3KP22A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP22A is usually 5 days.
3.What payment methods are accepted for MXDA3KP22A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXDA3KP22A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP22A?
MXDA3KP22A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP22A 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 MXDA3KP22A?
For technical support, including MXDA3KP22A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP22A requirements.
6.How does Aetrix verify that MXDA3KP22A is sourced from the original manufacturer or authorized distributors?
All MXDA3KP22A 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 MXDA3KP22A meets industry standards.
7.What is the process for return or replacement of MXDA3KP22A?
All MXDA3KP22A units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP22A, 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 MXDA3KP22A part is unused and in its original packaging.
Return procedure for MXDA3KP22A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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