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Microchip Technology MDA3KP7.5CAE3
- Part No.:
- MDA3KP7.5CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP7.5CAE3.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,983
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Product details
Overview
MDA3KP7.5CAE3 from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array in a surface-mount DO-214AB package, designed for high-reliability secondary lightning and ESD protection. It features a 7.5 V reverse standoff voltage (VWM), 8.33–9.21 V breakdown voltage (V(BR)), 12.9 V maximum clamping voltage at 100 A peak pulse current, and operates across –55 °C to +150 °C junction temperature.
For engineers reviewing the MDA3KP7.5CAE3 datasheet, MDA3KP7.5CAE3 pinout, MDA3KP7.5CAE3 application, or MDA3KP7.5CAE3 equivalent, key selection criteria include IEC 61000-4-5 Class 1–4 compliance with 42 Ω/12 Ω/2 Ω source impedances, bidirectional polarity, RoHS-compliant matte-tin plating, and 100 ps response time - critical for telecom power rails, industrial I/O protection, and automotive body control modules.
Technical Context
The MDA3KP7.5CAE3 implements a symmetrical silicon avalanche diode structure enabling bidirectional clamping without external polarity constraints. Its 10/1000 μs surge rating of 3000 W and sub-100 ps response ensure effective suppression of fast-rising transients from ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and secondary lightning (IEC 61000-4-5).
It is characterized by low standby leakage (<100 μA at 7.5 V), tight V(BR) tolerance (±5%), and thermal stability supported by full MIL-PRF-19500 screening options. The device's DO-214AB package provides mechanical robustness and solderability per MIL-STD-750 Method 2026, with moisture sensitivity level 1 per J-STD-020B.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - Maximum continuous DC or peak AC voltage the device blocks without conduction |
| V(BR) min/max | 8.33–9.21 V @ 1 mA - Ensures reliable avalanche initiation within 5% tolerance band |
| VC @ IPP | 12.9 V @ 100 A - Clamping voltage during 10/1000 μs surge; limits downstream voltage stress |
| PPP | 3000 W @ 10/1000 μs - Peak power handling capacity for standardized lightning surge waveform |
| TJ range | –55 °C to +150 °C - Enables operation in harsh environments including under-hood automotive and industrial controls |
| Response time | <100 ps - Near-instantaneous clamping prevents damage from ESD events before system-level protection reacts |
| RoHS | e3 suffix - Matte-tin terminal plating compliant with EU Directive 2011/65/EU, no lead or hazardous substances |
Pinout & Package
MDA3KP7.5CAE3 is housed in a DO-214AB (SMC) plastic package with void-free thermosetting epoxy body (UL94V-0 rated), 5 g typical weight, and polarity defined by a dot marking indicating Pin 1 (cathode for unidirectional variants; symmetrical terminals for bidirectional MDA3KP7.5CAE3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional clamping node | Either terminal serves as anode or cathode depending on transient polarity; no orientation required in PCB layout |
| Case / Body | Non-connected thermal mass | Provides mechanical mounting and heat dissipation path; electrically isolated from active junction |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables single-device protection of AC lines or differential buses without polarity concerns |
| 3000 W peak pulse power | Meets IEC 61000-4-5 Class 4 requirements with 42 Ω source impedance for secondary lightning immunity |
| MIL-PRF-19500 screening option | Supports high-reliability programs requiring wafer lot traceability, 3σ ID screening, and surge testing per military standard |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and floor-life restrictions, simplifying SMT assembly logistics |
| Low clamping ratio (VC/VWM = 1.72) | Minimizes overvoltage exposure to protected ICs compared to higher-ratio TVS devices |
Applications
| Telecom Power Feeds | Industrial PLC I/O Ports |
|---|---|
Use Scenario: Protection of 48 V DC power inputs in VoIP gateways and remote radio units against induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Primary shunt clamping element placed upstream of DC-DC converters and PMICs. Use Value: Limits transient voltage to ≤12.9 V during 100 A 10/1000 μs surges, preventing latch-up or burnout in downstream 3.3 V/5 V logic. | Use Scenario: Guarding analog and digital input channels on programmable logic controller backplanes exposed to field wiring transients. IC Role / Device Role / Timing Role: Bidirectional overvoltage clamp on signal lines referenced to chassis ground. Use Value: Withstands repeated 2 kV EFT bursts (IEC 61000-4-4) and 4 kV ESD contact discharge (IEC 61000-4-2) without degradation. |
| Automotive Body Control Modules | Medical Diagnostic Equipment Interfaces |
Use Scenario: Safeguarding LIN bus and sensor supply lines in BCMs subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Secondary protection stage after primary LC filtering, absorbing residual energy. Use Value: Operates reliably from –40 °C to +125 °C ambient, maintaining clamping performance across full automotive temperature range. | Use Scenario: Shielding USB, RS-232, and analog front-end connectors in portable ultrasound and ECG devices from hospital-grade ESD events. IC Role / Device Role / Timing Role: Interface-level transient suppressor mounted directly at connector entry point. Use Value: Sub-100 ps response ensures clamping occurs before sensitive ADCs or USB PHYs experience damaging overvoltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5CA | 600 W PPP rating, same VWM and bidirectional configuration, DO-214AA package | Lower surge capacity; suitable only for IEC 61000-4-2/4-4, not Class 4 lightning per IEC 61000-4-5 | Select when cost or board space is prioritized over 3000 W surge margin |
| 1.5KE7.5CA | 3000 W PPP but axial-leaded DO-15 package, higher parasitic inductance (~10 nH vs. ~5 nH) | Not surface-mount compatible; unsuitable for automated assembly or high-frequency transient suppression | Choose only for through-hole prototyping or legacy board rework where SMT is unavailable |
Compared with SMBJ7.5CA and 1.5KE7.5CA, the MDA3KP7.5CAE3 delivers superior surge robustness in a compact SMT footprint with lower inductance and MIL-grade reliability options - making it optimal for mission-critical industrial and automotive designs requiring validated 3000 W immunity.
Availability
MDA3KP7.5CAE3 is available at Aetrix Electronics and suitable for telecom power feeds, industrial PLC I/O ports, and automotive body control modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MDA3KP7.5CAE3 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 developed to deliver military-grade transient suppression in commercial surface-mount form factors, targeting applications where IEC 61000-4-5 compliance, wide temperature operation, and lot traceability are mandatory.
FAQ
What is the clamping voltage of MDA3KP7.5CAE3 at its rated peak pulse current?
The MDA3KP7.5CAE3 has a maximum clamping voltage (VC) of 12.9 V at 100 A peak pulse current under 10/1000 μs waveform conditions. This value is guaranteed across temperature and lifetime, ensuring predictable overvoltage limiting for protected circuitry. The clamping ratio (VC/VWM = 1.72) reflects efficient energy diversion without excessive voltage overshoot during surge events.
Is MDA3KP7.5CAE3 suitable for IEC 61000-4-5 Class 4 lightning protection?
Yes, the MDA3KP7.5CAE3 supports IEC 61000-4-5 Class 4 secondary lightning protection when tested with 42 Ω source impedance, as confirmed in the official Microsemi RF01243 datasheet. Its 3000 W peak pulse power rating and verified clamping behavior under standardized 10/1000 μs surges make it appropriate for this highest severity level in industrial and telecom infrastructure applications.
Does MDA3KP7.5CAE3 require dry packing or special handling due to moisture sensitivity?
No, the MDA3KP7.5CAE3 is rated at Moisture Sensitivity Level 1 per IPC/JEDEC J-STD-020B, meaning it has unlimited floor life and does not require dry pack packaging or baking prior to reflow. This simplifies manufacturing logistics and eliminates moisture-related delamination risks during standard SMT assembly processes.
How does the bidirectional design of MDA3KP7.5CAE3 affect PCB layout?
The bidirectional design of MDA3KP7.5CAE3 eliminates polarity constraints in PCB layout - either terminal may connect to line or return without functional impact. This simplifies routing on differential pairs, AC-coupled interfaces, or floating grounds, and avoids orientation errors during automated placement. The DO-214AB package uses a dot marking solely for mechanical reference, not electrical polarity.
What screening options are available for MDA3KP7.5CAE3 under MIL-PRF-19500?
MIL-PRF-19500 screening for MDA3KP7.5CAE3 includes wafer lot traceability, 3σ statistical screening on standby current (ID), and full surge testing per specification. Optional conformance inspections cover visual, mechanical, and electrical parameters aligned with JAN/JANTX/JANTXV levels. These options are factory-orderable and documented in Micronote 129, supporting high-integrity programs in defense and aerospace systems.
MDA3KP7.5CAE3 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):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 232.6A
- 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:
- -
MDA3KP7.5CAE3 FAQ
1.How can I place an order for MDA3KP7.5CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP7.5CAE3 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 MDA3KP7.5CAE3 reliable?
The price and inventory of MDA3KP7.5CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP7.5CAE3 is usually 5 days.
3.What payment methods are accepted for MDA3KP7.5CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP7.5CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP7.5CAE3?
MDA3KP7.5CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP7.5CAE3 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 MDA3KP7.5CAE3?
For technical support, including MDA3KP7.5CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP7.5CAE3 requirements.
6.How does Aetrix verify that MDA3KP7.5CAE3 is sourced from the original manufacturer or authorized distributors?
All MDA3KP7.5CAE3 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 MDA3KP7.5CAE3 meets industry standards.
7.What is the process for return or replacement of MDA3KP7.5CAE3?
All MDA3KP7.5CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP7.5CAE3, 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 MDA3KP7.5CAE3 part is unused and in its original packaging.
Return procedure for MDA3KP7.5CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MDA3KP7.5CAE3 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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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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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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