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Microchip Technology MXDA3KP8.5CA
- Part No.:
- MXDA3KP8.5CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP8.5CA.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,453
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Product details
Overview
MXDA3KP8.5CA from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array designed for high-reliability surge protection in industrial and aerospace power interfaces. It features 8.5 V reverse standoff voltage (VWM), 9.44–10.4 V breakdown voltage (V(BR)), 14.4 V maximum clamping voltage at 208.4 A peak pulse current, and operates across –55 °C to +150 °C junction temperature.
For engineers reviewing the MXDA3KP8.5CA datasheet, MXDA3KP8.5CA pinout, MXDA3KP8.5CA application, or MXDA3KP8.5CA equivalent, key selection criteria include IEC61000-4-5 secondary lightning compliance (Class 1–4 with 2–42 Ω source impedance), bidirectional polarity, RoHS-compliant e3 plating, and surface-mount vertical package with defined Pin 1 dot marking.
Technical Context
The MXDA3KP8.5CA implements a silicon avalanche diode structure optimized for sub-5 ns response time under ESD/EFT transients per IEC61000-4-2/4-4. Its bidirectional configuration enables symmetrical clamping on AC lines or differential signal paths without external polarity management.
It delivers 3000 W peak pulse power at 10/1000 μs waveform with full surge testing per lot and 3σ screening on standby current (ID). The device meets MIL-PRF-19500 high-reliability screening options and supports derating above 25 °C per Figure 3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.5 V - Maximum continuous operating voltage before clamping begins; sets minimum system overvoltage margin |
| V(BR) min/max | 9.44–10.4 V @ 1 mA - Confirmed avalanche onset range; ensures predictable turn-on across temperature and lot |
| VC @ IPP | 14.4 V @ 208.4 A - Clamping voltage during worst-case 10/1000 μs surge; defines protected circuit's maximum stress level |
| IPP | 208.4 A - Peak impulse current capability; determines survivability against IEC61000-4-5 Class 4 surges (42 Ω source) |
| ID @ VWM | 25 μA - Standby leakage at rated standoff; low enough to avoid loading sensitive analog or control circuits |
| TJ/TSTG | –55 to +150 °C - Extended thermal range supports operation in harsh environments including avionics and motor drives |
| PPP | 3000 W @ 10/1000 μs - Sustained energy handling capacity; validated per Figure 1 with ≤0.05% duty cycle |
Pinout & Package
MXDA3KP8.5CA uses a surface-mount vertical package with void-free UL94V-0 epoxy body, tin-lead or matte-tin (e3) plating, and Pin 1 identified by a dot on top. Polarity follows odd-pin cathode convention per TVS pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode of Channel 1 | Reference terminal for first bidirectional TVS pair; marked by dot on package top |
| Pin 2 | Anode of Channel 1 | Completes first TVS path; symmetric conduction enables AC line protection |
| Pin 3 | Cathode of Channel 2 | Second TVS cathode; supports dual-line or differential interface protection |
| Pin 4 | Anode of Channel 2 | Second TVS anode; allows independent clamping on two signal/power paths |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables symmetrical clamping on AC mains, RS-485, or CAN bus without polarity awareness |
| 3000 W peak pulse power | Handles IEC61000-4-5 Class 4 surges (4 kV, 42 Ω source) without degradation |
| MIL-PRF-19500 screening option | Supports high-reliability programs requiring wafer/assembly traceability and lot-level 3σ ID screening |
| Moisture Level 1 rating | Eliminates dry-pack requirement per J-STD-020B; simplifies SMT assembly logistics |
| Sub-5 ns response time | Clamps ESD events (IEC61000-4-2) before downstream ICs experience latch-up or gate oxide damage |
Applications
| Industrial Motor Drives | Avionics Power Distribution |
|---|---|
Use Scenario: Protection of DC bus inputs against switching transients from IGBT commutation and regenerative braking. IC Role / Device Role / Timing Role: Bidirectional TVS array clamping both positive and negative voltage spikes on dual-rail power inputs. Use Value: Prevents MOSFET gate oxide failure and controller reset by limiting transient excursions to ≤14.4 V at 208 A. | Use Scenario: Secondary lightning protection on 28 V DC aircraft power feeders per DO-160 Section 22. IC Role / Device Role / Timing Role: High-energy surge shunt placed upstream of DC-DC converters and avionics modules. Use Value: Meets Class 4 compliance (4 kV, 42 Ω) with full 3000 W rating and –55 °C to +150 °C operational envelope. |
| RS-485 Data Lines | Medical Imaging Power Supplies |
Use Scenario: Transient suppression on long-haul industrial serial communication lines exposed to EFT and induced RF. IC Role / Device Role / Timing Role: Dual-channel bidirectional TVS protecting differential A/B lines with matched clamping thresholds. Use Value: Maintains signal integrity by clamping common-mode surges within 5 ns while holding leakage below 25 μA. | Use Scenario: Surge protection on isolated auxiliary power rails feeding X-ray detector bias supplies. IC Role / Device Role / Timing Role: Primary front-end TVS on 12–24 V input rails subject to load-dump and inductive kickback. Use Value: Ensures regulatory compliance (IEC60601-1-2) via tested 3000 W surge handling and RoHS-compliant e3 plating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.5CA | 600 W PPP rating, SMB package, 13.4 V VC @ 43.5 A IPP | Lower energy handling; suitable only for Class 1–2 IEC61000-4-5 or ESD-only use cases | Select when board space is constrained and surge threat level is limited to EFT/ESD |
| SMCJ8.5CA | 1500 W PPP rating, SMC package, 14.4 V VC @ 104.2 A IPP | Half the peak power of MXDA3KP8.5CA; requires derating for Class 4 lightning events | Choose where cost sensitivity outweighs need for full 3000 W margin in critical systems |
Compared with SMBJ8.5CA and SMCJ8.5CA, MXDA3KP8.5CA provides double the surge energy capacity of SMCJ8.5CA and five times that of SMBJ8.5CA-enabling single-device Class 4 lightning protection without parallel staging or thermal derating compromises.
Availability
MXDA3KP8.5CA is available at Aetrix Electronics and suitable for industrial motor drives, avionics power distribution, and medical imaging power supplies requiring stable component supply across extended temperature and high-surge environments.
Supply support for MXDA3KP8.5CA 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, and industrial markets.
The MDA3KP series was developed specifically for mission-critical surge protection where MIL-PRF-19500 screening, wide temperature operation, and 3000 W pulse robustness are mandatory.
FAQ
What is the clamping voltage of MXDA3KP8.5CA at its rated peak pulse current?
The MXDA3KP8.5CA has a maximum clamping voltage (VC) of 14.4 V at its rated peak pulse current (IPP) of 208.4 A under 10/1000 μs waveform conditions. This value is measured per Figure 2 in the official datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The MXDA3KP8.5CA maintains this clamping performance across its full operating temperature range.
Is MXDA3KP8.5CA compliant with IEC61000-4-5 for secondary lightning protection?
Yes, MXDA3KP8.5CA is validated for IEC61000-4-5 secondary lightning protection across multiple classes: Class 1–4 with 42 Ω source impedance, Class 1–3 with 12 Ω, and Class 2–4 with 2 Ω. Its 3000 W peak pulse power rating and 14.4 V clamping voltage ensure compliance without external staging. The MXDA3KP8.5CA datasheet explicitly lists these classifications on Page 1 under Applications/Benefits.
Does MXDA3KP8.5CA require dry-pack moisture protection before reflow soldering?
No, MXDA3KP8.5CA carries IPC/JEDEC J-STD-020B Moisture Sensitivity Level 1 rating, meaning it does not require dry-pack storage or baking prior to surface-mount assembly. Its void-free thermosetting epoxy body and e3 matte-tin plating enable direct placement into standard reflow profiles up to 260 °C for 10 seconds. This eliminates handling overhead for the MXDA3KP8.5CA in high-volume manufacturing.
How is polarity identified on the MXDA3KP8.5CA package?
Polarity on the MXDA3KP8.5CA is defined by a dot marking on the top surface indicating Pin 1, which serves as the cathode of the first TVS channel. Per the datasheet's "Mechanical and Packaging" section, odd-numbered pins (1 and 3) are cathodes, while even-numbered pins (2 and 4) are anodes-enabling correct orientation during automated placement. This marking is visible and verified on all MXDA3KP8.5CA units shipped by Microsemi.
What is the maximum junction temperature specification for MXDA3KP8.5CA?
The MXDA3KP8.5CA has a maximum junction and storage temperature rating of +150 °C, with a minimum of –55 °C. This extended range supports deployment in under-hood automotive modules, avionics enclosures, and industrial motor drive cabinets where ambient temperatures exceed 100 °C. Derating of peak pulse power begins above 25 °C per Figure 3 in the MXDA3KP8.5CA datasheet.
MXDA3KP8.5CA 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):
- 8.5V
- Voltage - Breakdown (Min):
- 9.44V
- Voltage - Clamping (Max) @ Ipp:
- 14.4V
- Current - Peak Pulse (10/1000µs):
- 208.4A
- 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:
- -
MXDA3KP8.5CA FAQ
1.How can I place an order for MXDA3KP8.5CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP8.5CA 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 MXDA3KP8.5CA reliable?
The price and inventory of MXDA3KP8.5CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP8.5CA is usually 5 days.
3.What payment methods are accepted for MXDA3KP8.5CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXDA3KP8.5CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP8.5CA?
MXDA3KP8.5CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP8.5CA 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 MXDA3KP8.5CA?
For technical support, including MXDA3KP8.5CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP8.5CA requirements.
6.How does Aetrix verify that MXDA3KP8.5CA is sourced from the original manufacturer or authorized distributors?
All MXDA3KP8.5CA 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 MXDA3KP8.5CA meets industry standards.
7.What is the process for return or replacement of MXDA3KP8.5CA?
All MXDA3KP8.5CA units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP8.5CA, 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 MXDA3KP8.5CA part is unused and in its original packaging.
Return procedure for MXDA3KP8.5CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXDA3KP8.5CA Tags
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ESD9B5.0ST5G
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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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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
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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