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Microchip Technology MXDA3KP8.5CAE3
- Part No.:
- MXDA3KP8.5CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP8.5CAE3.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:6,709
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Product details
Overview
MXDA3KP8.5CAE3 from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array in a surface-mount package, designed for high-reliability 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 8.5 V reverse standoff voltage (VWM), 9.44–10.4 V breakdown voltage (V(BR)), and clamps to ≤14.4 V at 208.4 A peak pulse current (IPP).
For engineers reviewing the MXDA3KP8.5CAE3 datasheet, MXDA3KP8.5CAE3 pinout, MXDA3KP8.5CAE3 application, or MXDA3KP8.5CAE3 equivalent, key selection criteria include bidirectional polarity, 3000 W 10/1000 µs surge rating, RoHS-compliant matte-tin plating, MIL-PRF-19500 upscreening eligibility, and compatibility with industrial power supply input stages, telecom line interfaces, and automotive body control modules.
Technical Context
The MXDA3KP8.5CAE3 operates as a symmetrical avalanche diode array with dual cathode-anode junctions enabling bidirectional clamping. Its sub-5 ns response time ensures effective suppression of fast transients including ESD (±8 kV contact), EFT (±2 kV), and induced switching surges.
It is rated for continuous operation from –55 °C to +150 °C junction temperature, with moisture sensitivity level (MSL) 1 and no dry pack requirement per J-STD-020B. Standby leakage current is ≤25 µA at 8.5 V, supporting low-power system monitoring circuits without loading error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.5 V - Maximum continuous DC or peak AC voltage the device blocks without conduction. |
| V(BR) min/max | 9.44–10.4 V @ 1 mA - Ensures reliable avalanche initiation before system overvoltage damages downstream ICs. |
| VC @ IPP | ≤14.4 V @ 208.4 A - Clamping voltage limits stress on protected circuitry during 10/1000 µs surge events. |
| PPP | 3000 W @ 10/1000 µs - Sustains high-energy transients common in industrial motor drives and telecom line cards. |
| ID @ VWM | ≤25 µA - Negligible standby current avoids signal integrity degradation in high-impedance sensor or reference paths. |
| TJ/TSTG | –55 to +150 °C - Supports deployment in under-hood automotive, outdoor base stations, and industrial PLCs. |
Pinout & Package
MXDA3KP8.5CAE3 uses a 3-pin surface-mount package with void-free UL94V-0 epoxy body. Pin 1 is marked by a dot; odd-numbered pins (1 and 3) are cathodes, and pin 2 is the common anode terminal for bidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Channel A) | Provides low-impedance path to ground during positive transients on Channel A input. |
| Pin 2 | Common Anode | Shared anode node enabling symmetrical clamping for both polarities across two channels. |
| Pin 3 | Cathode (Channel B) | Provides low-impedance path to ground during negative transients on Channel B input. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables single-device protection of AC-coupled or floating differential lines without polarity constraints. |
| 3000 W peak pulse power | Handles high-energy surges from inductive load switching or nearby lightning strikes without failure. |
| MIL-PRF-19500 upscreening option | Supports aerospace and defense applications requiring lot traceability, burn-in, and parametric screening. |
| MSL Level 1 rating | Allows standard reflow soldering without pre-baking, reducing manufacturing complexity and cost. |
Applications
| Industrial Motor Drives | Telecom Line Interfaces |
|---|---|
Use Scenario: Protection of gate driver inputs and feedback sensing nodes against switching-induced transients in 3-phase inverters. IC Role / Device Role / Timing Role: Transient voltage suppressor placed directly at connector entry point and across isolated feedback paths. Use Value: Limits clamped voltage to ≤14.4 V, preventing latch-up or oxide breakdown in isolated gate drivers and ADC front-ends. | Use Scenario: Surge protection on POTS or xDSL line interface circuits exposed to induced lightning surges. IC Role / Device Role / Timing Role: Bidirectional TVS connected between tip/ring and ground to clamp common-mode and differential surges. Use Value: Meets IEC61000-4-5 Class 3 (12 Ω source) and Class 4 (42 Ω source) requirements with verified 3000 W capability. |
| Automotive Body Control Modules | Medical Diagnostic Equipment Inputs |
Use Scenario: Input protection for LIN bus transceivers and sensor signal conditioners in harsh vehicle environments. IC Role / Device Role / Timing Role: TVS mounted at harness entry points to absorb load dump and ISO 7637-2 pulse 1/2a/3a transients. Use Value: Withstands –55 °C to +150 °C operating range and maintains <25 µA leakage at 8.5 V standoff, preserving signal fidelity. | Use Scenario: ESD safeguarding of analog front-end inputs on patient-connected ECG or EEG acquisition systems. IC Role / Device Role / Timing Role: Low-leakage bidirectional TVS placed before instrumentation amplifiers to prevent damage from ±8 kV HBM ESD events. Use Value: Sub-5 ns response time and ≤14.4 V clamping ensure amplifier input stage remains within safe operating area during clinical handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.5CA | Lower PPP (400 W), smaller SMA package, 10.1–11.2 V V(BR) range, higher VC (14.4 V same but at only 32.4 A IPP). | Not suitable for IEC61000-4-5 Class 3/4; limited to low-energy ESD/EFT in space-constrained consumer electronics. | Select SMAJ8.5CA only when board space is critical and surge energy is below 400 W. |
| SMCJ8.5CA | Same 3000 W rating and 8.5 V VWM, but TO-277 package (single-channel, 2-pin), no common-anode dual-channel configuration. | Requires two devices for dual-line protection; lacks integrated dual-cathode symmetry of MXDA3KP8.5CAE3. | Choose SMCJ8.5CA when protecting discrete single-ended lines where dual-channel integration is unnecessary. |
Compared with SMAJ8.5CA and SMCJ8.5CA, MXDA3KP8.5CAE3 uniquely delivers 3000 W bidirectional clamping in a single 3-pin surface-mount package with common-anode architecture-enabling compact, balanced protection of differential or dual-rail signal paths without layout duplication or power asymmetry.
Availability
MXDA3KP8.5CAE3 is available at Aetrix Electronics and suitable for industrial motor drives, telecom line interfaces, and automotive body control modules requiring stable component supply, long-term lifecycle support, and traceable sourcing for high-reliability deployments.
Supply support for MXDA3KP8.5CAE3 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, industrial, and communications markets.
The MDA3KP series was developed specifically for robust secondary lightning and ESD protection in mission-critical infrastructure, emphasizing surge survivability, thermal stability, and MIL-spec screening readiness.
FAQ
What is the clamping voltage of MXDA3KP8.5CAE3 at its rated peak pulse current?
The MXDA3KP8.5CAE3 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 guaranteed across the full operating temperature range and ensures protected circuitry remains below destructive voltage thresholds during surge events. The MXDA3KP8.5CAE3 achieves this performance using symmetrical avalanche junctions with tight V(BR) distribution (9.44–10.4 V).
Is MXDA3KP8.5CAE3 RoHS compliant and what does the 'e3' suffix indicate?
Yes, MXDA3KP8.5CAE3 is RoHS compliant. The 'e3' suffix explicitly denotes annealed matte-tin plating per JEDEC standards, confirming lead-free termination and compliance with Directive 2011/65/EU. This plating supports reliable solder wetting and intermetallic formation during Pb-free reflow processes, and the device carries MSL Level 1 qualification-no dry pack required prior to assembly.
How does the bidirectional design of MXDA3KP8.5CAE3 affect its circuit placement?
The bidirectional design of MXDA3KP8.5CAE3 allows it to protect AC-coupled, floating, or differential signal paths without polarity concerns. Its pin 2 common-anode configuration enables symmetrical clamping between pins 1–2 and 2–3, making it ideal for protecting balanced lines like RS-485, CAN, or telecom tip/ring pairs. Unlike unidirectional TVS arrays, MXDA3KP8.5CAE3 eliminates the need for external biasing or orientation-aware layout.
Can MXDA3KP8.5CAE3 be used for IEC61000-4-5 Class 4 lightning protection?
Yes, MXDA3KP8.5CAE3 is validated for IEC61000-4-5 Class 4 secondary lightning protection with 42 Ω source impedance, as confirmed in the official Microsemi datasheet (RF01243, Rev B, Page 1). It meets the 3000 W surge requirement at 10/1000 µs and supports Class 4 operation across its full VWM range (6.0–18 V bidirectional variants), including MXDA3KP8.5CAE3.
What is the maximum standoff voltage and leakage current specification for MXDA3KP8.5CAE3?
The MXDA3KP8.5CAE3 has a rated reverse standoff voltage (VWM) of 8.5 V and a maximum standby leakage current (ID) of 25 µA at that voltage and 25 °C. This low leakage preserves signal integrity in high-impedance monitoring circuits and ensures minimal power loss in always-on protection schemes. The MXDA3KP8.5CAE3 maintains ID ≤25 µA across its full operating temperature range.
MXDA3KP8.5CAE3 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:
- -
MXDA3KP8.5CAE3 FAQ
1.How can I place an order for MXDA3KP8.5CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP8.5CAE3 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 MXDA3KP8.5CAE3 reliable?
The price and inventory of MXDA3KP8.5CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP8.5CAE3 is usually 5 days.
3.What payment methods are accepted for MXDA3KP8.5CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXDA3KP8.5CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP8.5CAE3?
MXDA3KP8.5CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP8.5CAE3 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 MXDA3KP8.5CAE3?
For technical support, including MXDA3KP8.5CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP8.5CAE3 requirements.
6.How does Aetrix verify that MXDA3KP8.5CAE3 is sourced from the original manufacturer or authorized distributors?
All MXDA3KP8.5CAE3 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 MXDA3KP8.5CAE3 meets industry standards.
7.What is the process for return or replacement of MXDA3KP8.5CAE3?
All MXDA3KP8.5CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP8.5CAE3, 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 MXDA3KP8.5CAE3 part is unused and in its original packaging.
Return procedure for MXDA3KP8.5CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXDA3KP8.5CAE3 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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Diodes Incorporated
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