Microchip Technology MXDA3KP22AE3
- Part No.:
- MXDA3KP22AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP22AE3.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:

- Shipping:

Inventory:9,571
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Product details
Overview
MXDA3KP22AE3 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 delivers sub-100 ps response for ESD, EFT, and secondary lightning protection in telecom power interfaces.
For engineers reviewing the MXDA3KP22AE3 datasheet, MXDA3KP22AE3 pinout, MXDA3KP22AE3 application, or MXDA3KP22AE3 equivalent, key selection criteria include VWM ≥ system DC bus voltage, VC margin relative to protected IC absolute maximum ratings, surge current capability under IEC61000-4-5 42 Ω source impedance, RoHS-compliant matte-tin terminations, and -55°C to +150°C junction temperature operation.
Technical Context
This TVS array uses silicon avalanche diode technology optimized for high-energy transient suppression in DC power rails and signal lines. Its unidirectional polarity enables asymmetric clamping-low forward voltage (4.0 V @ 500 A) during overvoltage events while maintaining <2 µA standby leakage at 22 V.
Designed for IEC61000-4-2 (ESD), IEC61000-4-4 (EFT), and IEC61000-4-5 (lightning) compliance, it supports Class 1–4 secondary lightning protection with 42 Ω source impedance and Class 1–3 with 12 Ω, validated per MIL-PRF-19500 high-reliability screening options.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous DC operating voltage before clamping begins; must exceed system nominal rail voltage. |
| V(BR) min/max | 24.4–26.9 V - Breakdown occurs within this range at 1 mA; defines onset of avalanche conduction. |
| VC @ IPP | 35.5 V @ 84.4 A - Clamped voltage during 10/1000 µs surge; determines stress on downstream components. |
| PPP | 3000 W - Peak pulse power handling at 10/1000 µs waveform; defines single-event energy absorption limit. |
| ID @ VWM | 2 µA - Standby leakage current at rated standoff voltage; negligible loading on 22 V supply rail. |
| TJ/TSTG | -55°C to +150°C - Operating and storage temperature range; suitable for industrial and automotive under-hood environments. |
Pinout & Package
MXDA3KP22AE3 is housed in a void-free thermosetting epoxy package (UL94V-0) with matte-tin-plated terminals. Pin 1 is marked by a dot on the top surface; odd-numbered pins are cathodes per device channel.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Channel 1) | Connected to protected line; clamps positive transients to ground when voltage exceeds V(BR). |
| Pin 2 | Anode (Channel 1) | Typically tied to system ground; completes conduction path during overvoltage event. |
| Pin 3 | Cathode (Channel 2) | Second independent TVS channel; identical electrical specs to Channel 1. |
| Pin 4 | Anode (Channel 2) | Independent ground return for Channel 2; enables dual-rail or differential protection. |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables robust protection against IEC61000-4-5 42 Ω lightning surges up to Class 4 without derating at 25°C. |
| Sub-100 ps response time | Clamps ESD events (IEC61000-4-2 ±8 kV contact) before sensitive logic or analog circuitry sustains damage. |
| MIL-PRF-19500 screening option | Supports high-reliability programs requiring wafer lot traceability, 3σ ID screening, and surge testing per military standard. |
| RoHS-compliant e3 marking | Matte-tin plating meets lead-free soldering requirements (260°C, 10 s) and eliminates Pb-based contamination risk. |
Applications
| Telecom Power Input Protection | Industrial PLC I/O Module Protection |
|---|---|
Use Scenario: 24 V DC power input stage of VoIP gateway exposed to induced surges from nearby AC mains or relay switching. IC Role / Device Role / Timing Role: Unidirectional TVS array clamping positive transients to ground while blocking reverse leakage. Use Value: Limits clamped voltage to 35.5 V, ensuring downstream DC-DC converter ICs (e.g., LM5017) remain below 40 V absolute max rating. | Use Scenario: Analog input channel (0–10 V) on programmable logic controller subjected to EFT bursts during factory automation operation. IC Role / Device Role / Timing Role: Fast-response TVS shunting EFT energy before op-amp input stages saturate or latch. Use Value: Sub-100 ps turn-on prevents >100 ns disturbance propagation into ADC sampling window, preserving measurement integrity. |
| Automotive Body Control Module | Medical Infusion Pump Power Rail |
Use Scenario: 12 V battery-supplied body control unit encountering load dump transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power rail, coordinating with upstream fuse and downstream LDOs. Use Value: 3000 W PPP rating absorbs 120 V/100 ms load dump energy without thermal runaway, validated across -40°C to +125°C. | Use Scenario: Isolated 24 V DC power feed to motor driver in Class II medical device requiring reinforced insulation and low leakage. IC Role / Device Role / Timing Role: Secondary surge protector after front-end filter, providing final-stage clamping before safety-critical motor control IC. Use Value: 2 µA ID at 22 V ensures no measurable current injection into patient-isolated circuits, meeting IEC 60601-1 creepage/clearance constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | 600 W PPP rating, SMA package, 38.9 V VC @ 32.5 A IPP - lower energy handling and higher clamping voltage. | Single-channel, lower-power board-level protection where space or cost constraints preclude multi-kW devices. | Select SMAJ22A only if surge threat level is limited to IEC61000-4-2/4-4 without lightning exposure. |
| SMCJ22A | 1500 W PPP rating, SMC package, 35.5 V VC @ 42.2 A IPP - half the peak power, same clamping voltage, larger footprint than MDA series. | Mid-tier industrial equipment requiring moderate surge immunity with legacy SMC layout compatibility. | Choose SMCJ22A when existing PCB land pattern matches SMC and full 3000 W capability is not required. |
Compared with SMAJ22A and SMCJ22A, MXDA3KP22AE3 provides double the pulse power of SMCJ22A and five times that of SMAJ22A while maintaining identical clamping voltage - enabling fewer devices per rail and simplified thermal design in high-threat environments.
Availability
MXDA3KP22AE3 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, automotive body electronics, and medical power systems requiring stable component supply and long-term lifecycle support.
Supply support for MXDA3KP22AE3 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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, communications, and industrial markets.
The MDA3KP series targets high-energy transient suppression in mission-critical DC power and interface circuits, emphasizing MIL-PRF-19500 screening readiness, wide temperature operation, and consistent clamping performance across production lots.
FAQ
What is the maximum clamping voltage of MXDA3KP22AE3 under IEC61000-4-5 surge conditions?
The MXDA3KP22AE3 has a maximum clamping voltage (VC) of 35.5 V at 84.4 A peak pulse current (IPP), measured under the 10/1000 µs waveform specified in IEC61000-4-5. This value is guaranteed across the full operating temperature range and represents the upper bound of voltage seen by protected circuitry during worst-case surge events.
Is MXDA3KP22AE3 RoHS compliant and what does the 'e3' suffix indicate?
Yes, MXDA3KP22AE3 is RoHS compliant. The 'e3' suffix denotes matte-tin plating per J-STD-609, confirming lead-free terminations compatible with Pb-free reflow soldering profiles up to 260°C for 10 seconds. This ensures compliance with EU RoHS Directive 2011/65/EU and China RoHS II.
How many independent TVS channels does MXDA3KP22AE3 contain and how are they configured?
MXDA3KP22AE3 contains two independent unidirectional TVS channels in a single 4-pin package. Pins 1–2 form Channel 1 (cathode–anode), and Pins 3–4 form Channel 2 (cathode–anode). Each channel shares identical electrical specifications including VWM = 22 V, V(BR) = 24.4–26.9 V, and VC = 35.5 V @ 84.4 A.
Can MXDA3KP22AE3 be used for bidirectional transient suppression?
No, MXDA3KP22AE3 is unidirectional only. Its part number lacks the 'C' suffix (e.g., MDA3KP22CE3) required for bidirectional variants. Using it for AC or bipolar signal lines would result in forward conduction during negative excursions, potentially damaging the device or circuit. For bidirectional protection, select the 'C' version with symmetric clamping.
What is the standby leakage current of MXDA3KP22AE3 at its rated standoff voltage?
The MXDA3KP22AE3 exhibits a maximum standby leakage current (ID) of 2 µA at its rated working standoff voltage (VWM) of 22 V and 25°C. This ultra-low leakage ensures minimal power loss and no measurable loading effect on 22 V supply rails, critical for battery-powered or low-quiescent-current systems.
MXDA3KP22AE3 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:
- -
MXDA3KP22AE3 FAQ
1.How can I place an order for MXDA3KP22AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP22AE3 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 MXDA3KP22AE3 reliable?
The price and inventory of MXDA3KP22AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP22AE3 is usually 5 days.
3.What payment methods are accepted for MXDA3KP22AE3?
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4.How is shipping managed for MXDA3KP22AE3?
MXDA3KP22AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP22AE3 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 MXDA3KP22AE3?
For technical support, including MXDA3KP22AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP22AE3 requirements.
6.How does Aetrix verify that MXDA3KP22AE3 is sourced from the original manufacturer or authorized distributors?
All MXDA3KP22AE3 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 MXDA3KP22AE3 meets industry standards.
7.What is the process for return or replacement of MXDA3KP22AE3?
All MXDA3KP22AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP22AE3, 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 MXDA3KP22AE3 part is unused and in its original packaging.
Return procedure for MXDA3KP22AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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