My Inquiry
My Account
Microchip Technology MXDA3KP28CA
- Part No.:
- MXDA3KP28CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP28CA.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:9,565
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MXDA3KP28CA from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array designed for high-reliability surge protection in industrial and telecom power rails. It features a 28 V standoff voltage (VWM), 31.1–34.4 V breakdown range (V(BR)), 45.4 V clamping voltage at 66 A peak pulse current, and operates across –55 °C to +150 °C junction temperature. It protects against IEC61000-4-2 ESD, IEC61000-4-4 EFT, and secondary lightning per IEC61000-4-5 with 42 Ω, 12 Ω, or 2 Ω source impedance.
For engineers reviewing the MXDA3KP28CA datasheet, MXDA3KP28CA pinout, MXDA3KP28CA application, or MXDA3KP28CA equivalent, this device serves as a surface-mount, RoHS-compliant, bidirectional TVS for robust overvoltage protection in DC power inputs, telecom line cards, and industrial control interfaces where fast response (<5 ns), high surge capability, and MIL-PRF-19500 upscreening options are required.
Technical Context
The MXDA3KP28CA is a monolithic, vertically mounted TVS array with dual-anode/dual-cathode configuration enabling bidirectional clamping without external polarity constraints. Its silicon avalanche structure delivers sub-5 ns response time and sustains 3000 W peak pulse power under 10/1000 µs waveform conditions.
It is characterized by tight 5% tolerance on V(BR), low standby leakage (<2 µA at 28 V), and full surge testing per production lot. The device meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity and supports optional MIL-PRF-19500 reliability screening including wafer/assembly lot traceability and 3σ ID screening.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 28 V - Maximum continuous DC or peak AC voltage the device blocks without conduction. |
| V(BR) min/max | 31.1–34.4 V @ 1 mA - Confirmed avalanche onset range ensuring predictable turn-on during transients. |
| VC @ IPP | 45.4 V @ 66 A - Clamping voltage limiting downstream circuit stress during worst-case 10/1000 µs surge. |
| PPP | 3000 W @ 10/1000 µs - Sustained single-pulse energy handling capacity for lightning-level threats. |
| Response time | <5 ns - Enables effective suppression of ESD (IEC61000-4-2) and fast EFT bursts (IEC61000-4-4). |
| TJ range | –55 °C to +150 °C - Supports operation in extended-temperature industrial and automotive under-hood environments. |
| RoHS | e3 marking - Lead-free matte-tin plating compliant with EU RoHS Directive 2011/65/EU. |
Pinout & Package
MXDA3KP28CA uses a 2-pin DO-214AB (SMC) package with cathode-indicating dot marking and void-free UL94V-0 epoxy body. Terminals are tin-lead or annealed matte-tin plated per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Marked with dot; connects to protected line side when used in unidirectional mode - but bidirectional operation allows either pin to serve as line or return. |
| Pin 2 | Cathode | Second cathode terminal; enables symmetrical clamping between two lines or line-to-ground in differential configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables line-to-line or line-to-ground protection without polarity dependency - critical for AC-coupled or floating bus interfaces. |
| 3000 W peak pulse rating | Withstands IEC61000-4-5 Class 4 surges (42 Ω source) without degradation - validated per Figure 1 derating curve. |
| MIL-PRF-19500 upscreening option | Supports high-reliability programs requiring lot traceability, 3σ ID screening, and conformance inspection - documented in Micronote 129. |
| Level 1 moisture sensitivity | No dry pack or baking required before reflow - simplifies SMT assembly and reduces manufacturing risk. |
| Low leakage ID | <2 µA @ 28 V - Minimizes standby power loss in battery-backed or energy-sensitive systems. |
Applications
| Industrial Power Input Protection | Telecom Line Card Surge Suppression |
|---|---|
Use Scenario: 24–32 V DC input rail in programmable logic controllers exposed to inductive switching and nearby lightning-induced surges. IC Role / Device Role / Timing Role: Primary shunt TVS providing fast clamping to limit transient overvoltage before it reaches DC-DC converters and microcontrollers. Use Value: Limits peak voltage to ≤45.4 V during 66 A surges, preventing latch-up or gate oxide damage in downstream ICs rated for 36 V absolute maximum. | Use Scenario: T1/E1 interface card in central office equipment subjected to IEC61000-4-5 Class 3 surges with 12 Ω source impedance. IC Role / Device Role / Timing Role: Bidirectional line-to-line protector placed ahead of transformer-coupled receiver inputs. Use Value: Symmetrical clamping ensures equal protection on both signal polarities, preserving signal integrity while meeting Telcordia GR-1089-CORE requirements. |
| Automotive Body Control Module (BCM) | Renewable Energy Inverter DC Link |
Use Scenario: 24 V supply rail in BCM modules operating in under-hood environments with wide thermal cycling and load-dump transients. IC Role / Device Role / Timing Role: Secondary surge suppressor complementing primary load-dump protection, handling coupled RF and EFT events. Use Value: –55 °C to +150 °C rating and <5 ns response ensure reliable operation during cold cranking and hot soak conditions per ISO 16750-2. | Use Scenario: DC link between PV array and MPPT controller in solar inverters, subject to long-duration lightning-induced surges. IC Role / Device Role / Timing Role: High-energy clamping element placed across DC+ and DC− to prevent overvoltage failure of IGBT gate drivers. Use Value: 3000 W PPP rating and 45.4 V VC allow safe dissipation of multi-millisecond transients without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ28CA | 600 W PPP rating, same VWM and bidirectional polarity, DO-214AA package. | Limited to Class 2/3 IEC61000-4-5; insufficient for 3000 W lightning events. | Select when board space is constrained and surge threat level is lower (e.g., internal PCB traces only). |
| SMCJ28CA | 1500 W PPP rating, identical VWM/V(BR)/VC specs, DO-214AB package, no MIL screening option. | Meets Class 3 lightning but not Class 4; lacks upscreening path for aerospace/defense programs. | Choose for cost-sensitive industrial designs where 1500 W margin suffices and reliability screening is not mandated. |
Compared with SMBJ28CA and SMCJ28CA, MXDA3KP28CA provides double the surge energy handling of SMCJ28CA and five times that of SMBJ28CA - making it the only option qualified for Class 4 secondary lightning protection with 42 Ω source impedance and eligible for MIL-PRF-19500 upscreening.
Availability
MXDA3KP28CA is available at Aetrix Electronics and suitable for industrial power input protection, telecom line card surge suppression, and automotive body control module (BCM) designs requiring stable component supply and long-term lifecycle support.
Supply support for MXDA3KP28CA 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 military-grade transient suppression in commercial surface-mount form, bridging the performance gap between standard TVS diodes and hermetically sealed MIL-spec devices - with emphasis on surge robustness, thermal stability, and traceable manufacturing.
FAQ
What does the 'C' suffix in MXDA3KP28CA indicate?
The 'C' suffix denotes bidirectional polarity - meaning MXDA3KP28CA clamps symmetrically for both positive and negative transients across its two terminals. This eliminates the need for polarity-aware placement on PCBs and enables use in AC-coupled or floating differential signal paths where voltage reversals occur. Unlike unidirectional variants (e.g., MXDA3KP28A), MXDA3KP28CA has no anode/cathode distinction in normal operation.
Is MXDA3KP28CA suitable for IEC61000-4-5 Class 4 testing with 42 Ω source impedance?
Yes, MXDA3KP28CA is explicitly rated for IEC61000-4-5 Class 4 secondary lightning protection with 42 Ω source impedance, as confirmed in the Applications/Benefits section of RF01243 Rev B. Its 3000 W peak pulse power and 45.4 V clamping voltage at 66 A ensure compliance when applied per test setup guidelines - provided layout minimizes parasitic inductance and thermal management accounts for derating above 25 °C.
Does MXDA3KP28CA require dry packing or baking before reflow soldering?
No, MXDA3KP28CA carries IPC/JEDEC J-STD-020B Moisture Sensitivity Level 1 rating, meaning it may be stored indefinitely at ambient conditions without dry pack and requires no pre-reflow baking. This simplifies SMT handling and eliminates moisture-related popcorning risk during lead-free reflow profiles - a key advantage over higher MSL-rated TVS devices.
Can MXDA3KP28CA be used in place of a unidirectional TVS like MXDA3KP28A?
MXDA3KP28CA can replace MXDA3KP28A in most line-to-ground configurations, but not vice versa - because the bidirectional version clamps equally in both directions, whereas the unidirectional variant only conducts during reverse-bias transients. Substituting MXDA3KP28A for MXDA3KP28CA risks failure during positive-going surges on grounded lines. Always verify system polarity requirements before interchange.
What is the maximum allowable junction temperature for continuous operation of MXDA3KP28CA?
The maximum continuous junction temperature for MXDA3KP28CA is +150 °C, as specified in the Maximum Ratings table on page 2 of RF01243 Rev B. This rating applies under steady-state thermal conditions with appropriate PCB copper area and airflow. Derating of peak pulse power begins above 25 °C per Figure 3, and sustained operation near 150 °C requires thermal modeling to avoid exceeding TJ limits during repeated surge events.
MXDA3KP28CA 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):
- 28V
- Voltage - Breakdown (Min):
- 31.1V
- Voltage - Clamping (Max) @ Ipp:
- 45.4V
- Current - Peak Pulse (10/1000µs):
- 66A
- 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:
- -
MXDA3KP28CA FAQ
1.How can I place an order for MXDA3KP28CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP28CA 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 MXDA3KP28CA reliable?
The price and inventory of MXDA3KP28CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP28CA is usually 5 days.
3.What payment methods are accepted for MXDA3KP28CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXDA3KP28CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP28CA?
MXDA3KP28CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP28CA 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 MXDA3KP28CA?
For technical support, including MXDA3KP28CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP28CA requirements.
6.How does Aetrix verify that MXDA3KP28CA is sourced from the original manufacturer or authorized distributors?
All MXDA3KP28CA 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 MXDA3KP28CA meets industry standards.
7.What is the process for return or replacement of MXDA3KP28CA?
All MXDA3KP28CA units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP28CA, 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 MXDA3KP28CA part is unused and in its original packaging.
Return procedure for MXDA3KP28CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXDA3KP28CA Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
