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Microchip Technology MXLDA3KP8.5AE3
- Part No.:
- MXLDA3KP8.5AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP8.5AE3.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,293
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Product details
Overview
MXLDA3KP8.5AE3 from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 8.5 V standoff voltage (VWM), 9.44–10.4 V breakdown range (V(BR)), and 14.4 V maximum clamping voltage (VC) at 208.4 A peak pulse current (IPP). It provides secondary lightning protection per IEC61000-4-5 (42 Ω, Class 1–4), ESD/EFT suppression per IEC61000-4-2/4-4, and inductive switching transient protection in industrial power interfaces.
For engineers reviewing the MXLDA3KP8.5AE3 datasheet, MXLDA3KP8.5AE3 pinout, MXLDA3KP8.5AE3 application, or MXLDA3KP8.5AE3 equivalent, this page delivers verified electrical parameters, RoHS-compliant SMD package details, IEC-compliant surge capability, polarity marking convention, and direct alternative part comparisons for high-reliability transient protection design.
Technical Context
The MXLDA3KP8.5AE3 operates as a unidirectional avalanche diode-based TVS array, designed for fast-clamping response (<100 ps rise time) to protect downstream circuitry from high-energy transients. Its 8.5 V VWM ensures compatibility with 5 V and 8 V logic/power rails while maintaining margin above nominal operating voltage.
It meets MIL-PRF-19500 screening options for high-reliability applications and is rated for 3000 W peak pulse power at 10/1000 μs waveform, with full surge testing performed per lot and moisture sensitivity level 1 (no dry pack required).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.5 V - Maximum continuous reverse working voltage; must exceed peak system operating voltage to avoid leakage conduction. |
| V(BR) min–max | 9.44–10.4 V @ I(BR) - Breakdown occurs within this range at specified test current; defines turn-on threshold consistency. |
| VC @ IPP | 14.4 V @ 208.4 A - Clamped voltage during worst-case 10/1000 μs surge; determines protected circuit's maximum stress exposure. |
| ID @ VWM | 25 μA - Standby leakage current at 8.5 V; low enough to avoid loading sensitive bias networks. |
| PPP | 3000 W @ 10/1000 μs - Peak pulse power rating; defines energy-handling capacity for lightning/surge events. |
| TJ/TSTG | −55 to +150 °C - Operating and storage temperature range; supports extended industrial and aerospace environments. |
| Polarity | Unidirectional - Cathode on odd-numbered pins; requires correct orientation in series with protected line. |
Pinout & Package
MXLDA3KP8.5AE3 uses a 3-pin SMD package (case outline per RF01243, Page 6) with void-free UL94V-0 epoxy body, tin-lead or matte-tin plating, and polarity marked by a dot indicating Pin 1. Odd-numbered pins are cathodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode of Channel 1 | Connected to protected line (e.g., data/power input); clamps to ground when transient exceeds V(BR). |
| Pin 2 | Anode Common | Shared anode node tied to system ground; forms common return path for all channels. |
| Pin 3 | Cathode of Channel 2 | Second independent clamping path; enables dual-line protection (e.g., differential pair or redundant supply rail). |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables robust secondary lightning protection per IEC61000-4-5 with 42 Ω source impedance up to Class 4. |
| 14.4 V clamping at 208.4 A | Limits voltage overshoot across protected ICs during 10/1000 μs surges, preserving 3.3 V/5 V interface integrity. |
| RoHS-compliant e3 marking | Meets EU Directive 2011/65/EU; tin-only termination compatible with lead-free reflow profiles. |
| MIL-PRF-19500 screening option | Supports high-reliability programs requiring wafer/lot traceability, 3σ ID screening, and conformance inspection. |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and bake-out prior to assembly; reduces manufacturing overhead. |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
Use Scenario: Protection of DC bus inputs against inductive kickback from contactors and relay coils in PLC-controlled motor systems. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between +24 V rail and chassis ground to clamp spikes up to 3 kV. Use Value: Prevents latch-up or gate oxide damage in MOSFET drivers by limiting transient voltage to ≤14.4 V at 208 A. | Use Scenario: Surge protection on -48 V telecom power distribution boards exposed to lightning-induced surges on long-haul lines. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-ground on negative supply rail to absorb positive-going transients. Use Value: Maintains compliance with GR-1089-CORE Class 3 (12 Ω source) and Class 4 (2 Ω source) requirements without derating. |
| Medical Imaging Interfaces | Railway Signaling Inputs |
Use Scenario: Shielding LVDS and RS-422 links between CT scanner subsystems from EFT bursts generated by nearby switching power supplies. IC Role / Device Role / Timing Role: Dual-channel TVS deployed across differential pairs with shared anode to minimize PCB footprint. Use Value: Achieves >20 kV ESD immunity (IEC61000-4-2) and 4 kV EFT immunity (IEC61000-4-4) without signal distortion. | Use Scenario: Protecting 24 V DC trackside sensor inputs from induced surges due to traction current switching and nearby lightning strikes. IC Role / Device Role / Timing Role: Standoff-rated TVS mounted at connector entry point to shunt transients before reaching isolation amplifiers. Use Value: Supports EN 50121-3-2 compliance for rolling stock with 10/1000 μs surge withstand up to 3 kV (42 Ω source). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.5A | 600 W PPP rating, same VWM and VC; smaller SMB package (3.5 mm × 4.6 mm vs. 21.0–22.1 mm × 6.9–7.9 mm). | Lower energy handling limits use to sub-1 kA surges; unsuitable for Class 4 lightning per IEC61000-4-5. | Select SMBJ8.5A only for space-constrained, lower-risk environments where 3000 W capability is not required. |
| SMCJ8.5A | 1500 W PPP, same VWM/VC; SMC package (7.1 mm × 6.2 mm), ~40% smaller footprint than MXLDA3KP8.5AE3. | Derated clamping performance under repeated surges; lacks MIL-PRF-19500 screening option and Level 1 moisture rating. | Choose SMCJ8.5A for cost-sensitive industrial designs where full 3000 W rating and high-reliability screening are unnecessary. |
Compared with SMBJ8.5A and SMCJ8.5A, MXLDA3KP8.5AE3 delivers triple the peak pulse power, certified high-reliability screening, and larger thermal mass for sustained surge duty-making it the sole choice for mission-critical IEC61000-4-5 Class 4 and MIL-STD-1275E compliance.
Availability
MXLDA3KP8.5AE3 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, medical imaging interfaces, and railway signaling inputs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MXLDA3KP8.5AE3 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 compact surface-mount packages, targeting applications demanding IEC61000-4-5 compliance, MIL-PRF-19500 screening, and extended temperature operation.
FAQ
What is the clamping voltage of MXLDA3KP8.5AE3 at its rated peak pulse current?
The MXLDA3KP8.5AE3 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 standard test methods defined in the RF01243 datasheet and ensures predictable overvoltage limiting during surge events. The MXLDA3KP8.5AE3 maintains this clamping performance across its full operating temperature range of −55 °C to +150 °C.
Is MXLDA3KP8.5AE3 RoHS compliant and what does the 'e3' suffix indicate?
Yes, MXLDA3KP8.5AE3 is RoHS compliant, as confirmed by the 'e3' suffix in its part number per Microsemi's nomenclature guide (RF01243, Page 2). The 'e3' designation specifies matte-tin plating in accordance with JEDEC J-STD-609A, ensuring lead-free termination compatible with standard Pb-free reflow profiles. MXLDA3KP8.5AE3 meets EU Directive 2011/65/EU without exemptions.
How many independent TVS channels does MXLDA3KP8.5AE3 provide and how are they configured?
MXLDA3KP8.5AE3 integrates two independent unidirectional TVS channels sharing a common anode (Pin 2). Pins 1 and 3 serve as cathodes for each channel, enabling dual-line protection such as differential signal pairs or redundant supply rails. Polarity is marked by a dot indicating Pin 1, and odd-numbered pins are cathodes per the device's mechanical specification.
Does MXLDA3KP8.5AE3 meet IEC61000-4-5 Class 4 requirements and under what source impedance?
Yes, MXLDA3KP8.5AE3 meets IEC61000-4-5 Class 4 requirements with a 42 Ω source impedance, as explicitly stated in the Applications/Benefits section of RF01243. It also supports Class 1–3 with 12 Ω and Class 2–4 with 2 Ω source impedances depending on VWM selection. The MXLDA3KP8.5AE3 achieves this via its 3000 W peak pulse power rating and validated clamping behavior under standardized surge waveforms.
What is the moisture sensitivity level (MSL) of MXLDA3KP8.5AE3 and does it require baking before reflow?
MXLDA3KP8.5AE3 has a moisture sensitivity level (MSL) of Level 1 per IPC/JEDEC J-STD-020B, meaning it may be stored indefinitely at ambient conditions without degradation. No dry pack or pre-reflow baking is required, reducing manufacturing complexity and eliminating risk of popcorning during soldering. This MSL rating is confirmed in the Features section of the RF01243 datasheet.
MXLDA3KP8.5AE3 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:
- 8
- Bidirectional Channels:
- -
- 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:
- -
MXLDA3KP8.5AE3 FAQ
1.How can I place an order for MXLDA3KP8.5AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP8.5AE3 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 MXLDA3KP8.5AE3 reliable?
The price and inventory of MXLDA3KP8.5AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP8.5AE3 is usually 5 days.
3.What payment methods are accepted for MXLDA3KP8.5AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP8.5AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLDA3KP8.5AE3?
MXLDA3KP8.5AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP8.5AE3 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 MXLDA3KP8.5AE3?
For technical support, including MXLDA3KP8.5AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP8.5AE3 requirements.
6.How does Aetrix verify that MXLDA3KP8.5AE3 is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP8.5AE3 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 MXLDA3KP8.5AE3 meets industry standards.
7.What is the process for return or replacement of MXLDA3KP8.5AE3?
All MXLDA3KP8.5AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP8.5AE3, 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 MXLDA3KP8.5AE3 part is unused and in its original packaging.
Return procedure for MXLDA3KP8.5AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP8.5AE3 Tags
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