My Inquiry
My Account
Microchip Technology MXDA3KP8.5AE3
- Part No.:
- MXDA3KP8.5AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP8.5AE3.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:7,156
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MXDA3KP8.5AE3 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 power supply inputs and telecom interfaces.
For engineers reviewing the MXDA3KP8.5AE3 datasheet, MXDA3KP8.5AE3 pinout, MXDA3KP8.5AE3 application, or MXDA3KP8.5AE3 equivalent, key selection criteria include standoff voltage margin vs. system operating voltage, clamping voltage headroom for protected ICs, peak pulse current capability under 10/1000 µs waveform, thermal derating above 25 °C, and RoHS-compliant matte-tin termination compatibility with lead-free reflow.
Technical Context
The MXDA3KP8.5AE3 operates as a silicon avalanche diode-based unidirectional TVS, designed to clamp transient overvoltages before they reach downstream circuitry. Its response time is sub-100 ps, enabling effective suppression of ESD events and fast-rising switching transients.
It is rated for 3000 W peak pulse power at 10/1000 µs, with junction temperature range from –55 °C to +150 °C and moisture sensitivity level (MSL) 1 - eliminating dry-pack requirements per IPC/JEDEC J-STD-020B. Polarity is defined by dot marking; odd-numbered pins are cathodes.
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 within tight tolerance for predictable clamping onset |
| VC @ IPP | 14.4 V @ 208.4 A - limits voltage seen by protected circuit during worst-case 10/1000 µs surge |
| ID @ VWM | 25 µA - low leakage preserves efficiency in battery-powered or high-impedance sensing nodes |
| PPP | 3000 W @ 10/1000 µs - supports robust immunity against lightning-induced surges and inductive kickback |
| TJ/TSTG | –55 to +150 °C - enables deployment in automotive under-hood, industrial motor drives, and outdoor telecom equipment |
| RoHS | e3 suffix - matte-tin plating compliant with EU RoHS Directive 2011/65/EU, suitable for Pb-free assembly |
Pinout & Package
MXDA3KP8.5AE3 uses a 3-pin SMD package (case outline per RF01243, Page 6) with void-free UL94V-0 epoxy body, tin-lead or matte-tin terminations, and polarity indicated by dot marking. Pin 1 is cathode; odd-numbered pins are cathodes per internal array configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Anode-side connection point for unidirectional clamping path; ties to protected line (e.g., VBUS) |
| Pin 2 | Anode | Common ground reference for all TVS elements; must connect to low-impedance chassis or PCB ground plane |
| Pin 3 | Cathode | Second cathode terminal - supports dual-line or differential protection configurations when used with external routing |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse rating | Enables single-device protection against IEC61000-4-5 Class 4 surges (42 Ω source) without cascaded stages |
| Sub-100 ps response time | Clamps ESD events (IEC61000-4-2 ±8 kV contact) before sensitive logic or analog front-ends are stressed |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow profile use without baking or special handling |
| Wafer/lot traceability | Supports high-reliability programs requiring full material pedigree for aerospace, defense, and medical systems |
| Surge-tested per lot | Guarantees 100% production screening for peak pulse performance - no sample-based qualification |
Applications
| Industrial Power Input Protection | Telecom Line Interface |
|---|---|
Use Scenario: 24 V DC input stage of PLC I/O module exposed to load dump and relay coil flyback. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient energy before it reaches DC-DC converter and microcontroller power rails. Use Value: 14.4 V clamping voltage ensures downstream 12 V-rated regulators remain within absolute maximum ratings during 208.4 A surge. | Use Scenario: T1/E1 interface card in central office equipment subject to induced surges from adjacent power lines. IC Role / Device Role / Timing Role: Primary-level surge protector on tip/ring lines, coordinated with GDT and series impedance. Use Value: 3000 W rating handles repeated 10/1000 µs surges up to Class 4 severity without degradation, per IEC61000-4-5 (42 Ω). |
| Automotive Body Control Module | Medical Equipment Sensor Port |
Use Scenario: LIN bus transceiver power rail in BCM subjected to ISO 7637-2 Pulse 1 and Pulse 2a transients. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp on 12 V supply line feeding LIN PHY and MCU. Use Value: 25 µA standby current avoids measurable drain on vehicle battery during sleep mode. | Use Scenario: Analog sensor input (e.g., pressure transducer) in portable ultrasound unit connected to hospital-grade power outlets. IC Role / Device Role / Timing Role: Secondary protection layer after primary MOV/GDT, limiting let-through voltage to <15 V. Use Value: Tight 9.44–10.4 V V(BR) range ensures precise clamping onset without false triggering during normal 10 V sensor excitation. |
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, but lower IPP (62.5 A) and smaller SMB package | Limited to Class 2/3 IEC61000-4-5; unsuitable for Class 4 or high-energy inductive loads | Select MXDA3KP8.5AE3 where >200 A surge current or 3000 W dissipation is required |
| SMCJ8.5A | 1500 W PPP, same VWM/VC, SMC package, IPP = 125 A, higher thermal resistance than MDA series | Adequate for telecom line protection but marginal for repeated industrial surges due to lower energy handling | MXDA3KP8.5AE3 offers 2× peak power and superior thermal stability for high-duty-cycle environments |
Compared with SMBJ8.5A and SMCJ8.5A, MXDA3KP8.5AE3 delivers double the peak pulse power and 66–100% higher IPP while maintaining identical VWM and clamping performance - making it the only choice for Class 4 lightning immunity and high-reliability industrial deployments.
Availability
MXDA3KP8.5AE3 is available at Aetrix Electronics and suitable for industrial power input protection, telecom line interface hardening, automotive body control modules, and medical sensor port surge suppression requiring stable component supply across extended product lifecycles.
Supply support for MXDA3KP8.5AE3 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 for mission-critical surge protection in harsh environments, emphasizing lot traceability, MIL-PRF-19500 upscreening readiness, and guaranteed 3000 W pulse performance without derating at 25 °C.
FAQ
What is the clamping voltage of MXDA3KP8.5AE3 at its rated peak pulse current?
MXDA3KP8.5AE3 has a maximum clamping voltage (VC) of 14.4 V at 208.4 A peak pulse current (IPP), measured under the standard 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events. The clamping performance is validated per lot during production testing.
Is MXDA3KP8.5AE3 RoHS compliant and compatible with lead-free reflow?
Yes, MXDA3KP8.5AE3 carries the e3 suffix, indicating RoHS-compliant matte-tin plating per EU Directive 2011/65/EU. Its terminations are qualified for standard lead-free reflow profiles (up to 260 °C for 10 seconds), and its MSL Level 1 rating eliminates the need for dry packing or baking prior to assembly.
How does the polarity marking work on MXDA3KP8.5AE3?
MXDA3KP8.5AE3 uses a dot marking on the top of the package to identify Pin 1. As a unidirectional TVS array, odd-numbered pins (Pins 1 and 3) are cathodes, and Pin 2 is the common anode. This configuration allows flexible implementation - either as a single-line clamp (Pins 1–2) or dual-line protection (Pins 1–2 and Pins 3–2) depending on PCB layout.
Can MXDA3KP8.5AE3 be used for bidirectional signal line protection?
No - MXDA3KP8.5AE3 is unidirectional (no "C" suffix in part number) and conducts only during reverse-biased overvoltage events. For bidirectional protection (e.g., RS-485, USB D+/D−), Microsemi's MDA3KP8.5CE3 or equivalent bidirectional variants must be selected, as MXDA3KP8.5AE3 lacks symmetrical clamping behavior and will short forward-biased signals.
What is the maximum operating temperature range for MXDA3KP8.5AE3?
MXDA3KP8.5AE3 is rated for junction and storage temperatures from –55 °C to +150 °C. Its thermal performance remains stable across this range, though peak pulse power must be derated above 25 °C per Figure 3 in the RF01243 datasheet - for example, to ~80% at 85 °C ambient with proper PCB copper area.
MXDA3KP8.5AE3 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:
- -
MXDA3KP8.5AE3 FAQ
1.How can I place an order for MXDA3KP8.5AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP8.5AE3 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 MXDA3KP8.5AE3 reliable?
The price and inventory of MXDA3KP8.5AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP8.5AE3 is usually 5 days.
3.What payment methods are accepted for MXDA3KP8.5AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXDA3KP8.5AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP8.5AE3?
MXDA3KP8.5AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP8.5AE3 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 MXDA3KP8.5AE3?
For technical support, including MXDA3KP8.5AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP8.5AE3 requirements.
6.How does Aetrix verify that MXDA3KP8.5AE3 is sourced from the original manufacturer or authorized distributors?
All MXDA3KP8.5AE3 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 MXDA3KP8.5AE3 meets industry standards.
7.What is the process for return or replacement of MXDA3KP8.5AE3?
All MXDA3KP8.5AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP8.5AE3, 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 MXDA3KP8.5AE3 part is unused and in its original packaging.
Return procedure for MXDA3KP8.5AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXDA3KP8.5AE3 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…
