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Microchip Technology MADA3KP8.5CAE3
- Part No.:
- MADA3KP8.5CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MADA3KP8.5CAE3.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,049
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Product details
Overview
MDA3KP8.5CAE3 from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array in a surface-mount package, designed for high-reliability secondary lightning and ESD protection. It features a 8.5 V reverse standoff voltage (VWM), 9.44–10.4 V breakdown voltage (V(BR)), 14.4 V maximum clamping voltage (VC) at 208.4 A peak pulse current (IPP), and operates across –55 °C to +150 °C junction temperature.
For engineers reviewing the MDA3KP8.5CAE3 datasheet, MDA3KP8.5CAE3 pinout, MDA3KP8.5CAE3 application, or MDA3KP8.5CAE3 equivalent, key selection criteria include IEC61000-4-5 Class 1–4 compliance with 2/12/42 Ω source impedance, bidirectional polarity, RoHS-compliant matte-tin plating, and 100 ps response time - critical for telecom infrastructure, industrial control I/O, and automotive body electronics surge hardening.
Technical Context
The MDA3KP8.5CAE3 implements a silicon avalanche diode structure optimized for fast clamping under high-energy transients. Its bidirectional configuration enables symmetrical protection on AC-coupled or differential signal lines without polarity constraints, and its 10/1000 μs waveform rating ensures validated performance against IEC61000-4-5 surge events.
It delivers 3000 W peak pulse power at 25 °C with thermal derating above 25 °C per Figure 3, and meets MIL-PRF-19500 screening options when upscreened. 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 operating voltage before clamping begins; matches 5 V/8 V logic bus or sensor supply rails. |
| V(BR) min–max | 9.44–10.4 V - Confirmed avalanche onset range at 1 mA; ensures predictable turn-on margin over VWM. |
| VC @ IPP | 14.4 V - Clamping voltage at 208.4 A peak pulse; limits downstream IC stress during 3 kV/10/1000 μs surges. |
| IPP | 208.4 A - Peak impulse current supported at rated clamping; defines surge energy handling capacity. |
| TJ range | –55 to +150 °C - Extended thermal envelope enabling use in under-hood automotive or industrial enclosures. |
| Response time | <5 ns - Bidirectional switching latency; prevents sub-cycle overvoltage propagation in high-speed interfaces. |
| RoHS | e3 - Matte-tin termination compliant with EU RoHS Directive 2011/65/EU; no lead or hazardous substance exemptions. |
Pinout & Package
MDA3KP8.5CAE3 uses a 3-pin SMC (DO-214AB) surface-mount package with void-free UL94V-0 epoxy body and tin-lead or matte-tin plating. Pin 1 is cathode (marked by dot); odd-numbered pins are cathodes per TVS element. Polarity is bidirectional - no anode/cathode distinction required in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode of Channel 1 | Common connection point for first TVS diode; ties to protected line or ground reference depending on layout. |
| Pin 2 | Anode/Cathode Center Tap | Shared terminal for bidirectional conduction path; connects between two anti-parallel diodes in internal array. |
| Pin 3 | Cathode of Channel 2 | Second cathode node; used for dual-line or differential pair protection (e.g., RS-485 A/B). |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables symmetric clamping on AC signals or differential buses without external polarity management. |
| 3000 W peak pulse power | Validated at 10/1000 μs waveform; supports IEC61000-4-5 Level 4 surge immunity in telecom and industrial gateways. |
| MIL-PRF-19500 screening option | Available with wafer/lot traceability and 3σ standby current screening - required for aerospace and defense avionics. |
| Moisture sensitivity Level 1 | No dry pack or baking required prior to reflow; simplifies SMT assembly and reduces process risk. |
| Clamping response <5 ns | Prevents nanosecond-scale overvoltage overshoot in high-speed data lines like CAN FD or USB 2.0. |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module |
|---|---|
Use Scenario: 24 V DC input/output terminals exposed to relay coil flyback and load dump in factory automation cabinets. IC Role / Device Role / Timing Role: Primary surge suppression device placed at connector entry point, clamping transients before they reach isolators or microcontrollers. Use Value: Limits induced voltage to ≤14.4 V during 208.4 A surges, preserving 3.3 V/5 V logic integrity and eliminating need for additional RC snubbers. | Use Scenario: LIN bus and sensor supply lines in door modules subject to ESD and battery reverse-polarity events. IC Role / Device Role / Timing Role: Bidirectional TVS array protecting both power rail and communication line simultaneously with single component. Use Value: Withstands ±15 kV contact ESD (IEC61000-4-2) and clamps 10/1000 μs surges to safe levels without degrading signal rise time. |
| Telecom Base Station RF Front-End | Medical Diagnostic Imaging Interface |
Use Scenario: Antenna port and bias tee inputs exposed to induced RF and lightning-induced surges in outdoor macrocells. IC Role / Device Role / Timing Role: First-stage transient limiter ahead of LNA and T/R switch, reducing stress on GaAs components. Use Value: 3000 W rating and <5 ns response prevent burnout during multi-kA lightning coupling events while maintaining RF insertion loss stability. | Use Scenario: High-precision analog front-end of ultrasound probe interface handling low-level echo signals. IC Role / Device Role / Timing Role: Low-leakage (≤25 μA) TVS guarding ADC inputs against EFT bursts and ESD during cable hot-plug. Use Value: Standby current specification ensures no DC offset drift in mV-range signal paths, preserving diagnostic accuracy. |
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 rating, SMB package, 13.4 V VC @ 43.5 A IPP | Lower energy handling; suitable only for IEC61000-4-2/4-4, not Class 4 lightning | Select when board space is constrained and surge threat level is limited to ESD/EFT only. |
| SMCJ8.5CA | 1500 W rating, SMC package, 13.6 V VC @ 110 A IPP | Half the peak power of MDA3KP8.5CAE3; insufficient for 42 Ω IEC61000-4-5 Class 4 | Choose for cost-sensitive industrial designs where full 3 kW capability is not mandated by safety standards. |
Compared with SMBJ8.5CA and SMCJ8.5CA, the MDA3KP8.5CAE3 provides 2× and 2× higher peak pulse power respectively, enabling compliance with IEC61000-4-5 Class 4 at 42 Ω source impedance - a requirement in telecom central office and railway signaling equipment.
Availability
MDA3KP8.5CAE3 is available at Aetrix Electronics and suitable for industrial PLC I/O protection, automotive body control modules, and telecom base station RF front-end designs requiring stable component supply and long-term lifecycle assurance.
Supply support for MDA3KP8.5CAE3 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) 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 engineered specifically for mission-critical surge protection in harsh environments - emphasizing MIL-PRF-19500 traceability, wide temperature operation, and validated IEC61000-4-5 performance across multiple source impedances.
FAQ
What is the clamping voltage of MDA3KP8.5CAE3 at its rated peak pulse current?
The MDA3KP8.5CAE3 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 measured per standard test methods defined in IEC61000-4-5 and guarantees that downstream circuitry remains below destructive voltage thresholds during surge events. The MDA3KP8.5CAE3 maintains this clamping performance across its full operating temperature range.
Is MDA3KP8.5CAE3 suitable for IEC61000-4-5 Class 4 lightning surge testing?
Yes, the MDA3KP8.5CAE3 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. Its 3000 W peak pulse power rating and 208.4 A IPP enable it to clamp 4 kV surges without failure. The MDA3KP8.5CAE3 also supports Class 4 at 12 Ω and Class 2 at 2 Ω source impedances per documented test configurations.
What does the "C" and "E3" suffix mean in MDA3KP8.5CAE3?
In MDA3KP8.5CAE3, the "C" suffix denotes bidirectional polarity, meaning the device provides symmetrical clamping for both positive and negative transients. The "E3" suffix indicates RoHS-compliant matte-tin plating per JEDEC J-STD-020B, with moisture sensitivity Level 1 - no dry pack required before reflow soldering. These identifiers are defined in the Microsemi part nomenclature on page 2 of RF01243 Rev B.
How does MDA3KP8.5CAE3 differ from unidirectional MDA3KP8.5AE3?
The MDA3KP8.5CAE3 is bidirectional, while MDA3KP8.5AE3 is unidirectional. This means MDA3KP8.5CAE3 protects both polarities of a signal or power line without requiring orientation during placement, making it ideal for AC-coupled or differential interfaces. In contrast, MDA3KP8.5AE3 must be oriented with cathode toward the protected line's positive side. Both share identical VWM, V(BR), and VC ratings but differ in internal diode configuration and application flexibility.
Does MDA3KP8.5CAE3 require derating at elevated ambient temperatures?
Yes, the MDA3KP8.5CAE3 requires thermal derating above 25 °C ambient, as shown in Figure 3 of the RF01243 Rev B datasheet. Its 3000 W peak pulse power rating decreases linearly to ~50% at +125 °C junction temperature. Designers must calculate actual power dissipation using thermal resistance and ambient conditions, and ensure the MDA3KP8.5CAE3 junction temperature stays within –55 °C to +150 °C limits during surge events.
MADA3KP8.5CAE3 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:
- -
MADA3KP8.5CAE3 FAQ
1.How can I place an order for MADA3KP8.5CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MADA3KP8.5CAE3 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 MADA3KP8.5CAE3 reliable?
The price and inventory of MADA3KP8.5CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MADA3KP8.5CAE3 is usually 5 days.
3.What payment methods are accepted for MADA3KP8.5CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MADA3KP8.5CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MADA3KP8.5CAE3?
MADA3KP8.5CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MADA3KP8.5CAE3 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 MADA3KP8.5CAE3?
For technical support, including MADA3KP8.5CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MADA3KP8.5CAE3 requirements.
6.How does Aetrix verify that MADA3KP8.5CAE3 is sourced from the original manufacturer or authorized distributors?
All MADA3KP8.5CAE3 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 MADA3KP8.5CAE3 meets industry standards.
7.What is the process for return or replacement of MADA3KP8.5CAE3?
All MADA3KP8.5CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MADA3KP8.5CAE3, 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 MADA3KP8.5CAE3 part is unused and in its original packaging.
Return procedure for MADA3KP8.5CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MADA3KP8.5CAE3 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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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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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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