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Microchip Technology MXDA3KP20CA
- Part No.:
- MXDA3KP20CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP20CA.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,247
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Product details
Overview
MXDA3KP20CA from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array in a surface-mount DO-214AB package, designed for secondary lightning protection per IEC61000-4-5 (42 Ω, 12 Ω, and 2 Ω source impedances), ESD suppression per IEC61000-4-2, and EFT protection per IEC61000-4-4. It features a 20 V standoff voltage (VWM), 22.2–24.5 V breakdown range (V(BR)), 32.4 V max clamping voltage (VC) at 92.6 A IPP, and operates from –55 °C to +150 °C.
For engineers reviewing the MXDA3KP20CA datasheet, MXDA3KP20CA pinout, MXDA3KP20CA application, or MXDA3KP20CA equivalent, this page delivers verified electrical parameters, bidirectional polarity mapping, IEC-compliant surge capability, thermal derating behavior, and direct alternatives for industrial power interface and telecom line protection designs.
Technical Context
The MXDA3KP20CA implements a symmetrical avalanche diode structure enabling bidirectional clamping without external polarity constraints. Its <100 ps response time ensures sub-nanosecond turn-on during ESD events, while its 3000 W peak pulse power rating at 10/1000 µs waveform supports high-energy transients in AC/DC front-end and Ethernet PHY interfaces.
It complies with MIL-PRF-19500 screening options for high-reliability applications and exhibits Level 1 moisture sensitivity (IPC/JEDEC J-STD-020B), eliminating dry-pack requirements. Standby leakage current is ≤2 µA at 20 V, and clamping performance is guaranteed across full temperature range with defined derating above 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 20 V - Maximum continuous operating voltage before clamping begins; matches 17–20 V DC bus or AC line peaks. |
| V(BR) min–max | 22.2–24.5 V - Breakdown occurs within this band at 1 mA; ensures predictable turn-on margin above VWM. |
| VC @ IPP | 32.4 V - Clamping voltage at 92.6 A peak pulse; defines maximum voltage seen by protected IC during surge. |
| IPP | 92.6 A - Peak impulse current supported at 10/1000 µs; determines survivability under IEC61000-4-5 Class 3 (12 Ω). |
| TJ range | –55 to +150 °C - Extended junction temperature range enables use in automotive under-hood or industrial motor drive environments. |
| ID @ VWM | ≤2 µA - Ultra-low standby leakage preserves battery life and avoids false triggering in low-power sensor nodes. |
| PPP | 3000 W - Peak pulse power rating at 10/1000 µs; validates compliance with IEC61000-4-5 secondary lightning test levels. |
Pinout & Package
MXDA3KP20CA uses a DO-214AB (SMC) plastic package with void-free thermosetting epoxy body (UL94V-0), tin-lead or matte-tin plating, and polarity marked by dot indicating Pin 1. Odd-numbered pins are cathodes; even-numbered pins are anodes - confirming symmetrical bidirectional construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Channel A) | Clamps positive transients relative to common reference; paired with Pin 2 for bidirectional operation. |
| Pin 2 | Anode (Channel A) | Provides return path for negative transients; forms differential pair with Pin 1 for symmetrical clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines or differential data buses without polarity orientation concerns. |
| IEC61000-4-5 Class 1–4 compliance | Validated for secondary lightning testing at 42 Ω, 12 Ω, and 2 Ω source impedances - covers telecom, PoE, and industrial control inputs. |
| Sub-100 ps response time | Ensures clamping activation before ESD energy couples into downstream circuitry - critical for USB, HDMI, and Ethernet PHY protection. |
| MIL-PRF-19500 upscreening option | Supports high-reliability programs requiring lot traceability, 3σ ID screening, and conformance inspection per military specification. |
| Level 1 moisture sensitivity | Eliminates baking requirement prior to reflow; compatible with standard SMT assembly processes without dry-pack handling. |
Applications
| Industrial AC/DC Power Input | Telecom Line Interface |
|---|---|
Use Scenario: Protection of rectifier outputs and DC bus rails against induced surges from nearby contactors or lightning-induced ground potential rise. IC Role / Device Role / Timing Role: Primary TVS clamp placed between line and neutral or line and chassis ground to shunt >90 A transients before reaching downstream regulators. Use Value: Limits voltage excursion to ≤32.4 V during 10/1000 µs surges, preventing latch-up or gate oxide damage in 24 V or 48 V industrial PLC power stages. | Use Scenario: Surge protection on POTS, xDSL, or T1/E1 line cards exposed to longitudinal surges from outdoor cable runs. IC Role / Device Role / Timing Role: Bidirectional differential clamp across tip/ring pairs to suppress both polarities of lightning-induced common-mode transients. Use Value: Maintains signal integrity below 32.4 V clamping threshold while surviving repeated 1 kV/42 Ω IEC61000-4-5 tests - validated for Class 3 and Class 4 compliance. |
| Ethernet PHY Port Protection | Automotive Body Control Module Inputs |
Use Scenario: Protection of 10/100/1000BASE-T PHY transformers and magnetics against ESD and fast transients coupled via unshielded twisted pair cabling. IC Role / Device Role / Timing Role: Secondary-level TVS placed after common-mode chokes to clamp differential and common-mode overvoltages simultaneously. Use Value: Sub-100 ps response prevents ESD energy from propagating past isolation barriers; 2 µA leakage avoids bias distortion in transformer-coupled receivers. | Use Scenario: Input protection for LIN or CAN physical layer receivers connected to vehicle harnesses subject to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamp on sensor or switch inputs referenced to chassis ground to absorb reverse-polarity and inductive kickback transients. Use Value: Withstands –55 °C to +150 °C operation and meets IEC61000-4-4 EFT immunity requirements without derating in under-hood environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ20CA | 600 W PPP rating, 32.4 V VC @ 19.9 A IPP - lower surge capacity than MXDA3KP20CA's 3000 W/92.6 A. | Best suited for board-level ESD-only protection; insufficient for IEC61000-4-5 Class 3+ lightning testing. | Select SMBJ20CA only when space-constrained layouts require SMB package and surge demands are limited to ESD/EFT. |
| 1.5KE20CA | DO-201 package, 1500 W PPP, 32.4 V VC @ 46.4 A IPP - half the energy handling of MXDA3KP20CA. | Legacy through-hole design; lacks MIL-PRF-19500 upscreening and Level 1 moisture rating. | Choose 1.5KE20CA for cost-sensitive, non-high-reliability through-hole assemblies where 1500 W surge margin is acceptable. |
Compared with SMBJ20CA and 1.5KE20CA, MXDA3KP20CA delivers triple the peak pulse power and higher reliability screening - making it the preferred choice for mission-critical industrial and telecom surge protection where 3000 W IEC61000-4-5 compliance and extended temperature operation are mandatory.
Availability
MXDA3KP20CA is available at Aetrix Electronics and suitable for industrial AC/DC power input, telecom line interface, Ethernet PHY port protection, and automotive body control module inputs requiring stable component supply and long-term lifecycle support.
Supply support for MXDA3KP20CA 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 deliver rugged, high-power transient suppression for mission-critical infrastructure - targeting applications demanding MIL-PRF-19500 screening, wide temperature operation, and certified IEC61000-4-5 compliance.
FAQ
What is the clamping voltage of MXDA3KP20CA at its rated peak pulse current?
The MXDA3KP20CA has a maximum clamping voltage (VC) of 32.4 V at its peak pulse current (IPP) of 92.6 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 MXDA3KP20CA maintains this clamping performance across its full operating temperature range with documented derating above 25 °C.
Is MXDA3KP20CA suitable for IEC61000-4-5 secondary lightning protection?
Yes, MXDA3KP20CA is explicitly validated for IEC61000-4-5 secondary lightning protection across multiple source impedances: Class 1–4 at 42 Ω, Class 1–3 at 12 Ω, and Class 2–4 at 2 Ω. Its 3000 W peak pulse power rating and 92.6 A IPP ensure compliance with the highest stress levels defined in the standard. The MXDA3KP20CA datasheet (RF01243 Rev B, Page 1) confirms this capability for the full MDA3KPxxA/C family.
What does the 'C' suffix in MXDA3KP20CA indicate?
The 'C' suffix in MXDA3KP20CA denotes bidirectional polarity - meaning the device provides symmetrical clamping for both positive and negative transients across its two terminals. This contrasts with unidirectional variants (e.g., MXDA3KP20A), which clamp only one polarity and require correct orientation in-circuit. The MXDA3KP20CA's bidirectional behavior eliminates installation errors in AC-coupled or differential signal paths.
What is the maximum standoff voltage (VWM) for MXDA3KP20CA?
The maximum rated working standoff voltage (VWM) for MXDA3KP20CA is 20 V. This is the highest continuous DC or peak AC voltage the device can withstand without entering breakdown. It is selected to match typical 17–20 V system rails - ensuring reliable blocking during normal operation while allowing rapid clamping when transients exceed the 22.2–24.5 V breakdown range. The MXDA3KP20CA's VWM is confirmed in Table on Page 3 of RF01243 Rev B.
Does MXDA3KP20CA require dry packing before reflow soldering?
No, MXDA3KP20CA does not require dry packing prior to reflow soldering. It carries IPC/JEDEC J-STD-020B Level 1 moisture sensitivity rating, meaning it may be stored indefinitely at ambient conditions (<30 °C / 60% RH) without baking. This simplifies manufacturing logistics and eliminates risk of popcorn cracking during reflow - a key advantage over higher MSL-rated TVS devices. The MXDA3KP20CA's Level 1 status is stated on Page 2 of RF01243 Rev B.
MXDA3KP20CA 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:
- -
- Bidirectional Channels:
- 8
- Voltage - Reverse Standoff (Typ):
- 20V
- Voltage - Breakdown (Min):
- 22.2V
- Voltage - Clamping (Max) @ Ipp:
- 32.4V
- Current - Peak Pulse (10/1000µs):
- 92.6A
- 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:
- -
MXDA3KP20CA FAQ
1.How can I place an order for MXDA3KP20CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP20CA 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 MXDA3KP20CA reliable?
The price and inventory of MXDA3KP20CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP20CA is usually 5 days.
3.What payment methods are accepted for MXDA3KP20CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXDA3KP20CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP20CA?
MXDA3KP20CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP20CA 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 MXDA3KP20CA?
For technical support, including MXDA3KP20CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP20CA requirements.
6.How does Aetrix verify that MXDA3KP20CA is sourced from the original manufacturer or authorized distributors?
All MXDA3KP20CA 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 MXDA3KP20CA meets industry standards.
7.What is the process for return or replacement of MXDA3KP20CA?
All MXDA3KP20CA units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP20CA, 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 MXDA3KP20CA part is unused and in its original packaging.
Return procedure for MXDA3KP20CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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