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Microchip Technology MXDA3KP40CA
- Part No.:
- MXDA3KP40CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP40CA.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:6,762
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Product details
Overview
MXDA3KP40CA from Microsemi is a bidirectional 3000 W surface-mount transient voltage suppressor (TVS) array designed for high-reliability secondary lightning and ESD protection in industrial power interfaces. It features a 40 V reverse standoff voltage (VWM), 44.4–49.1 V breakdown voltage (V(BR)), 64.5 V maximum clamping voltage (VC) at 46.4 A peak pulse current, and operates from –55 °C to +150 °C.
For engineers reviewing the MXDA3KP40CA datasheet, MXDA3KP40CA pinout, MXDA3KP40CA application, or MXDA3KP40CA equivalent, key selection criteria include IEC61000-4-5 Class 1–4 compliance with 42 Ω/12 Ω source impedance, bidirectional polarity, RoHS-compliant e3 marking, and 100 ps response time - critical for telecom surge protection, DC power rail hardening, and industrial control I/O conditioning.
Technical Context
The MXDA3KP40CA is a monolithic TVS array built using silicon avalanche technology, optimized for fast clamping under high-energy transients. Its bidirectional construction enables symmetrical suppression of positive and negative surges without external polarity management, and its 10/1000 μs waveform rating ensures validated performance against IEC61000-4-5 surge test profiles.
It delivers 3000 W peak pulse power at 25 °C with thermal derating above 25 °C per Figure 3, and maintains <2 μA standby current (ID) at VWM. The device is fully surge-tested per lot and traceable to wafer and assembly lots per MIL-PRF-19500 screening options.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 40 V - Maximum continuous operating voltage before clamping begins; sets minimum system overvoltage margin. |
| V(BR) min/max | 44.4–49.1 V @ 1 mA - Confirmed avalanche onset range; ensures predictable turn-on across temperature and process variation. |
| VC @ IPP | 64.5 V @ 46.4 A - Clamping voltage during 10/1000 μs surge; defines worst-case voltage seen by protected ICs. |
| PPP | 3000 W @ 10/1000 μs - Peak power handling capability; validates compliance with IEC61000-4-5 Level 4 (42 Ω source). |
| TJ/TSTG | –55 °C to +150 °C - Extended junction/storage temperature range; supports operation in harsh industrial and aerospace environments. |
| ID @ VWM | ≤2 μA - Ultra-low leakage at rated standoff; prevents unintended loading of high-impedance sensor or reference circuits. |
| Response time | <100 ps - Sub-nanosecond turn-on; ensures protection precedes damage to downstream CMOS or analog front-ends. |
Pinout & Package
MXDA3KP40CA uses a 3-pin TO-277A (SMB) package with cathode-defined pin 1 marked by a dot on the top surface. Odd-numbered pins are cathodes per internal dual-diode configuration. Package body is void-free UL94V-0 epoxy with matte-tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Channel A) | Reference terminal for first TVS diode; connects to protected line requiring bidirectional clamping. |
| Pin 2 | Anode (Common) | Shared anode node; ties both channels to ground or common reference plane in differential or single-ended configurations. |
| Pin 3 | Cathode (Channel B) | Reference terminal for second TVS diode; enables symmetrical protection of balanced lines (e.g., RS-485, CAN bus). |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables symmetric ±40 V standoff and clamping without external polarity reversal; ideal for AC-coupled or differential signal paths. |
| IEC61000-4-5 Class 1–4 compliance | Validated for secondary lightning surges up to 4 kV (42 Ω source); eliminates need for external test-level qualification in certified designs. |
| MIL-PRF-19500 screening option | Supports high-reliability programs requiring lot traceability, 3σ ID screening, and conformance inspection - critical for defense/aerospace deployments. |
| Moisture sensitivity Level 1 | No dry pack or bake-out required prior to reflow; reduces manufacturing overhead and avoids moisture-induced popcorning during assembly. |
| RoHS-compliant e3 marking | Meets EU Directive 2011/65/EU with annealed matte-tin plating; ensures compatibility with lead-free soldering processes and environmental compliance reporting. |
Applications
| Industrial Power Input Protection | Telecom Line Interface |
|---|---|
Use Scenario: 48 V DC power feed in remote base stations exposed to induced lightning surges and switching transients. IC Role / Device Role / Timing Role: Primary surge clamp on input rail, placed upstream of DC-DC converters and PMICs. Use Value: Limits transient voltage to ≤64.5 V during 46.4 A surges, preventing latch-up or gate oxide rupture in downstream regulators. | Use Scenario: RS-485 data lines in outdoor SCADA networks subjected to EFT bursts and RF-induced noise. IC Role / Device Role / Timing Role: Bidirectional differential-line protector between transceiver and field wiring. Use Value: Clamps common-mode surges while preserving signal integrity up to 10 Mbps due to sub-100 ps response and low capacitance. |
| Automotive Body Control Module | Industrial PLC Analog I/O |
Use Scenario: 12 V battery-supplied BCM modules enduring load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Secondary protection stage after primary TVS or fuse, guarding microcontroller GPIO and CAN transceivers. Use Value: Withstands 3000 W pulses at –40 °C to +125 °C ambient, meeting AEC-Q200 stress requirements when combined with proper layout. | Use Scenario: 4–20 mA current loop inputs in factory-floor PLCs exposed to ESD events from operator contact. IC Role / Device Role / Timing Role: Low-leakage (≤2 μA) clamp on loop terminals, preserving measurement accuracy while shunting >15 kV HBM ESD. Use Value: Maintains signal fidelity under normal operation and clamps transients within 100 ps - faster than typical op-amp slew rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ40CA | 600 W PPP rating, same VWM and bidirectional polarity, SMA package (smaller footprint, lower thermal mass) | Lower energy handling; suitable only for IEC61000-4-2/4-4, not Class 4 lightning per IEC61000-4-5 | Select when board space is constrained and surge threat level is limited to ESD/EFT only. |
| SMCJ40CA | 1500 W PPP rating, same VWM and bidirectional polarity, SMC package (higher thermal mass than SMB but lower than TO-277A) | Half the peak pulse power of MXDA3KP40CA; meets IEC61000-4-5 Class 2–3 (12 Ω source) but not Class 4 | Choose for cost-sensitive industrial controls where full 3000 W capability is not mandated by safety standards. |
Compared with SMAJ40CA and SMCJ40CA, MXDA3KP40CA delivers double the pulse power of SMCJ40CA and five times that of SMAJ40CA - enabling single-device compliance with IEC61000-4-5 Class 4 (42 Ω) without parallel stacking or derating penalties.
Availability
MXDA3KP40CA is available at Aetrix Electronics and suitable for industrial power input protection, telecom line interface hardening, and automotive body control module surge mitigation requiring stable component supply across multi-year production cycles.
Supply support for MXDA3KP40CA 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 surge protection in harsh environments, emphasizing MIL-PRF-19500 traceability, extended temperature operation, and validated IEC61000-4-5 compliance - distinguishing it from commercial-grade TVS arrays.
FAQ
What is the clamping voltage of MXDA3KP40CA at its rated peak pulse current?
The MXDA3KP40CA has a maximum clamping voltage (VC) of 64.5 V at its rated peak pulse current (IPP) of 46.4 A under 10/1000 μs waveform conditions. This value is measured per standard test methods and represents the worst-case voltage imposed on protected circuitry during a full-rated surge event. The MXDA3KP40CA maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is MXDA3KP40CA RoHS compliant and what does the 'e3' marking indicate?
Yes, MXDA3KP40CA is RoHS compliant, as confirmed by the 'e3' suffix in its marking per Microsemi's nomenclature guide. The 'e3' designation specifies annealed matte-tin plating on all terminals, satisfying EU Directive 2011/65/EU and ensuring compatibility with lead-free reflow soldering processes. This compliance is verified per IPC/JEDEC J-STD-020B, and no dry pack is required due to its moisture sensitivity Level 1 rating.
How does MXDA3KP40CA differ from unidirectional variants like MDA3KP40A?
MXDA3KP40CA is bidirectional, providing symmetrical clamping for both positive and negative transients, whereas MDA3KP40A is unidirectional and clamps only negative-going surges relative to its anode. The 'C' suffix explicitly denotes bidirectional construction, enabling use on AC-coupled lines or differential buses without polarity constraints. MXDA3KP40CA's dual-diode architecture shares a common anode (Pin 2), supporting balanced protection schemes essential for RS-485 or CAN interfaces.
Can MXDA3KP40CA be used for IEC61000-4-5 Class 4 lightning surge protection?
Yes, MXDA3KP40CA is validated for IEC61000-4-5 Class 4 secondary lightning protection with a 42 Ω source impedance, as documented in the RF01243 datasheet. Its 3000 W peak pulse power rating and 64.5 V clamping voltage at 46.4 A ensure compliance without derating. For Class 4 testing, the device must be mounted per recommended pad layout and thermal relief guidelines to maintain junction temperature within limits during repetitive surges.
What is the standby leakage current of MXDA3KP40CA at its rated standoff voltage?
The MXDA3KP40CA exhibits a maximum standby current (ID) of 2 μA at its rated reverse standoff voltage (VWM) of 40 V and 25 °C ambient. This ultra-low leakage preserves signal integrity in high-impedance circuits such as sensor front-ends or precision reference dividers. The value is guaranteed per 3σ lot norm screening, and leakage remains below 5 μA across the full –55 °C to +150 °C operating range.
MXDA3KP40CA 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):
- 40V
- Voltage - Breakdown (Min):
- 44.4V
- Voltage - Clamping (Max) @ Ipp:
- 64.5V
- Current - Peak Pulse (10/1000µs):
- 46.4A
- 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:
- -
MXDA3KP40CA FAQ
1.How can I place an order for MXDA3KP40CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP40CA 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 MXDA3KP40CA reliable?
The price and inventory of MXDA3KP40CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP40CA is usually 5 days.
3.What payment methods are accepted for MXDA3KP40CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXDA3KP40CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP40CA?
MXDA3KP40CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP40CA 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 MXDA3KP40CA?
For technical support, including MXDA3KP40CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP40CA requirements.
6.How does Aetrix verify that MXDA3KP40CA is sourced from the original manufacturer or authorized distributors?
All MXDA3KP40CA 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 MXDA3KP40CA meets industry standards.
7.What is the process for return or replacement of MXDA3KP40CA?
All MXDA3KP40CA units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP40CA, 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 MXDA3KP40CA part is unused and in its original packaging.
Return procedure for MXDA3KP40CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXDA3KP40CA Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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