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Microchip Technology MADA3KP8.5AE3
- Part No.:
- MADA3KP8.5AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MADA3KP8.5AE3.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:8,895
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Product details
Overview
MDA3KP8.5AE3 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 DC power rails.
For engineers reviewing the MDA3KP8.5AE3 datasheet, MDA3KP8.5AE3 pinout, MDA3KP8.5AE3 application, or MDA3KP8.5AE3 equivalent, this page delivers verified electrical parameters, package dimensions, IEC-compliant surge capability, RoHS-compliant plating (e3), and direct alternative part guidance for industrial power input protection design.
Technical Context
The MDA3KP8.5AE3 operates as a unidirectional avalanche diode-based TVS, triggered when reverse voltage exceeds its 9.44–10.4 V breakdown threshold. Its <100 ps response time enables sub-nanosecond clamping during ESD events, while sustaining 3000 W peak pulse power under 10/1000 μs waveform conditions.
Designed for surface-mount vertical mounting, it features tin-lead or matte-tin plating compliant with MIL-STD-750 Method 2026, UL94V-0 void-free epoxy body, and polarity defined by dot-marked Pin 1 (cathode). Standby leakage is ≤25 μA at 8.5 V, supporting low-power system monitoring integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.5 V - Maximum continuous DC operating voltage before conduction begins |
| V(BR) min–max | 9.44–10.4 V @ 1 mA - Confirmed avalanche onset range for reliable trigger margin |
| VC @ IPP | 14.4 V @ 208.4 A - Clamped voltage during full 3000 W surge, limiting downstream stress |
| ID @ VWM | ≤25 μA - Low leakage preserves battery life and signal integrity in always-on circuits |
| PPP | 3000 W @ 10/1000 μs - Sustains high-energy transients without degradation |
| TJ/TSTG | −55 to +150 °C - Enables deployment in automotive engine bays and industrial enclosures |
| RoHS | e3 marking - Lead-free matte-tin termination compatible with Pb-free reflow profiles |
Pinout & Package
MDA3KP8.5AE3 uses a vertical surface-mount DO-214AB (SMC) package with cathode-defined polarity: Pin 1 is cathode, Pin 2 is anode. Body marking includes date code and "MDA3KP8.5A" with dot indicating Pin 1. Weight ≈5 g; moisture sensitivity level = 1 (no dry pack required).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line (e.g., +12 V rail); clamps to ground when overvoltage occurs |
| Pin 2 | Anode | Typically tied to system ground; completes conduction path during transient event |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional construction | Enables precise DC rail protection without reverse conduction risk in polarized systems |
| 3000 W peak pulse rating | Handles worst-case IEC61000-4-5 Class 4 surges (42 Ω source) without failure |
| 14.4 V clamping at 208.4 A | Keeps downstream ICs (e.g., MCU power pins) below absolute max ratings during surge |
| Moisture Level 1 | Eliminates bake requirement pre-reflow, reducing manufacturing cost and cycle time |
| MIL-PRF-19500 screening option | Supports high-reliability aerospace/defense programs requiring lot traceability and 3σ ID screening |
Applications
| Industrial Power Input Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: 24 V DC input stage of programmable logic controllers exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main supply rail, activated within <100 ps of transient onset. Use Value: Limits rail voltage to ≤14.4 V during 3000 W surges, preventing damage to 16 V-rated DC-DC converters and microcontrollers. | Use Scenario: 12 V battery-fed lighting control circuit subject to alternator load dump and ESD from user interface buttons. IC Role / Device Role / Timing Role: Unidirectional TVS placed between fuse output and BCM power entry point. Use Value: Clamps transients to safe levels while maintaining <25 μA standby leakage-critical for low-quiescent-current sleep modes. |
| Telecom Remote Radio Unit (RRU) | Medical Infusion Pump Power Stage |
Use Scenario: Outdoor base station power interface subjected to induced lightning surges per IEC61000-4-5 (42 Ω, Class 4). IC Role / Device Role / Timing Role: First-line defense against secondary lightning energy entering via PoE or AC/DC adapter inputs. Use Value: Survives repeated 3000 W impulses with no parameter shift, ensuring long-term field reliability in unattended deployments. | Use Scenario: Battery-backed 5 V/12 V internal power distribution network in safety-critical infusion devices. IC Role / Device Role / Timing Role: Surge suppression on motor driver and sensor supply lines to meet IEC60601-1-2 ESD immunity requirements. Use Value: Provides certified ESD protection (IEC61000-4-2 ±8 kV contact) without compromising low-leakage performance needed for battery runtime. |
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 | Lower PPP (600 W), same VWM (8.5 V), identical DO-214AA package | Not rated for IEC61000-4-5 Class 4; suitable only for ESD/EFT and low-energy switching noise | Select when surge energy is limited and board space requires smaller SMB footprint |
| 1.5KE8.5A | Higher V(BR) tolerance (±10%), through-hole DO-15 package, 3000 W rating | Requires PCB through-hole mounting; not suitable for high-density SMT layouts or automated assembly | Select for legacy designs with existing DO-15 footprints or where manual repair is preferred |
Compared with SMBJ8.5A and 1.5KE8.5A, the MDA3KP8.5AE3 uniquely combines 3000 W SMT capability, MIL-PRF-19500 screening readiness, and e3 RoHS compliance-making it optimal for new industrial and automotive platforms demanding high-reliability surface-mount surge protection.
Availability
MDA3KP8.5AE3 is available at Aetrix Electronics and suitable for industrial power input protection, automotive body control modules, telecom remote radio units, and medical infusion pump power stages requiring stable component supply across extended product lifecycles.
Supply support for MDA3KP8.5AE3 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, RF, and radiation-hardened components for aerospace, defense, and industrial markets.
The MDA3KP series was designed specifically for high-energy transient suppression in mission-critical DC power interfaces-emphasizing robustness, traceability, and compliance with MIL-PRF-19500 and IEC61000-4-x standards.
FAQ
What is the clamping voltage of MDA3KP8.5AE3 at its rated peak pulse current?
The MDA3KP8.5AE3 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 guaranteed per the manufacturer's electrical characteristics table and ensures downstream components remain within safe operating voltage limits during surge events. The MDA3KP8.5AE3 achieves this clamping performance while maintaining low leakage and fast response.
Is MDA3KP8.5AE3 RoHS compliant and what does the 'e3' suffix indicate?
Yes, MDA3KP8.5AE3 is RoHS compliant. The 'e3' suffix explicitly denotes matte-tin plating per J-STD-609, confirming lead-free termination compatible with Pb-free soldering processes. This marking is defined in the part nomenclature section of the datasheet and verified in the mechanical specifications. The MDA3KP8.5AE3 meets all RoHS Directive 2011/65/EU substance restrictions without exemptions.
Does MDA3KP8.5AE3 support MIL-PRF-19500 screening and what does that entail?
Yes, MDA3KP8.5AE3 supports optional upscreening per MIL-PRF-19500, including wafer lot traceability, 3σ screening on standby current (ID), and conformance inspections. This screening is documented in Micronote 129 and applies to the entire MDA3KP family. For MDA3KP8.5AE3, such screening enables qualification for aerospace and defense applications where process control and parametric consistency are mandatory.
What is the maximum operating temperature range for MDA3KP8.5AE3?
The MDA3KP8.5AE3 is rated for junction and storage temperatures from −55 °C to +150 °C. This wide thermal range allows operation in harsh environments such as under-hood automotive locations, industrial motor drives, and outdoor telecom equipment. Derating curves in Figure 3 confirm usable power capability down to 50% of rated PPP at +125 °C ambient, directly supporting the MDA3KP8.5AE3's deployment in thermally constrained designs.
How does MDA3KP8.5AE3 differ from bidirectional variants like MDA3KP8.5CE3?
The MDA3KP8.5AE3 is unidirectional, conducting only during reverse overvoltage events, whereas MDA3KP8.5CE3 is bidirectional and protects both polarities. This makes the MDA3KP8.5AE3 ideal for DC power rails with fixed polarity, offering tighter V(BR) tolerance and lower clamping in the intended direction. The 'A' suffix in MDA3KP8.5AE3 explicitly denotes unidirectional configuration, confirmed in the part nomenclature diagram on page 2 of the datasheet.
MADA3KP8.5AE3 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:
- -
MADA3KP8.5AE3 FAQ
1.How can I place an order for MADA3KP8.5AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MADA3KP8.5AE3 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 MADA3KP8.5AE3 reliable?
The price and inventory of MADA3KP8.5AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MADA3KP8.5AE3 is usually 5 days.
3.What payment methods are accepted for MADA3KP8.5AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MADA3KP8.5AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MADA3KP8.5AE3?
MADA3KP8.5AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MADA3KP8.5AE3 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 MADA3KP8.5AE3?
For technical support, including MADA3KP8.5AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MADA3KP8.5AE3 requirements.
6.How does Aetrix verify that MADA3KP8.5AE3 is sourced from the original manufacturer or authorized distributors?
All MADA3KP8.5AE3 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 MADA3KP8.5AE3 meets industry standards.
7.What is the process for return or replacement of MADA3KP8.5AE3?
All MADA3KP8.5AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MADA3KP8.5AE3, 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 MADA3KP8.5AE3 part is unused and in its original packaging.
Return procedure for MADA3KP8.5AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MADA3KP8.5AE3 Tags
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