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Microchip Technology MADA3KP7.5AE3
- Part No.:
- MADA3KP7.5AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MADA3KP7.5AE3.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:5,195
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Product details
Overview
MDA3KP7.5AE3 from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array designed for high-reliability overvoltage protection in power rails and signal lines. 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. It is used in industrial power supplies for IEC 61000-4-5 secondary lightning surge suppression.
For engineers reviewing the MDA3KP7.5AE3 datasheet, MDA3KP7.5AE3 pinout, MDA3KP7.5AE3 application, or MDA3KP7.5AE3 equivalent, key selection criteria include clamping performance at 100 A IPP, standoff voltage margin relative to DC rail, RoHS-compliant e3 termination, and MIL-PRF-19500 upscreening eligibility for aerospace-grade reliability validation.
Technical Context
The MDA3KP7.5AE3 employs silicon avalanche diode technology in a monolithic dual-diode configuration with cathode-common pinout. Its sub-100 ps response time enables effective suppression of ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and 10/1000 µs lightning surges (IEC 61000-4-5). The device is rated for 3000 W peak pulse power under standard test conditions with ≤0.05% duty cycle.
It is specified for unidirectional operation only (no "C" suffix), with polarity defined by odd-numbered pins as cathodes. Standby leakage ID is limited to 100 µA at 7.5 V VWM, and forward surge capability supports 200 A at 8.3 ms half-sine wave per MIL-STD-750 Method 2026.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Reverse Standoff) | 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 above operating rail while avoiding false triggering. |
| VC @ IPP | 12.9 V @ 100 A - Clamping voltage during 10/1000 µs surge; defines worst-case voltage seen by protected IC. |
| PPP | 3000 W @ 10/1000 µs - Peak surge energy handling capacity; validates suitability for Class 3–4 IEC 61000-4-5 testing. |
| ID @ VWM | 100 µA - Low leakage preserves efficiency in battery-backed or low-power standby circuits. |
| Junction Temp Range | –55 °C to +150 °C - Supports deployment in under-hood automotive, industrial motor drives, and outdoor telecom equipment. |
Pinout & Package
MDA3KP7.5AE3 uses a 3-pin TO-277A (SMB) surface-mount package 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 1 and Pin 3 are cathodes, Pin 2 is the common anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line (e.g., +12 V rail); conducts surge current to common anode when V > V(BR). |
| Pin 2 | Anode (Common) | Reference node tied to system ground or return path; completes current loop during clamping event. |
| Pin 3 | Cathode | Second protected line (e.g., +5 V rail); enables dual-rail protection in single-package footprint. |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W 10/1000 µs surge rating | Validates robustness against IEC 61000-4-5 Class 3 surges (1 kV, 42 Ω source) without degradation. |
| 12.9 V clamping at 100 A | Ensures downstream 3.3 V or 5 V logic ICs remain below absolute maximum ratings during surge events. |
| RoHS-compliant e3 termination | Meets EU Directive 2011/65/EU with lead-free matte-tin plating compatible with Pb-free reflow profiles. |
| MIL-PRF-19500 upscreening option | Enables qualification for space-grade or military avionics applications via lot traceability and 3σ ID screening. |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and bake-out prior to assembly per IPC/JEDEC J-STD-020B. |
Applications
| Industrial Power Supply Protection | Telecom Line Card Surge Suppression |
|---|---|
Use Scenario: 24 V DC input stage of programmable logic controller (PLC) power module exposed to inductive switching transients and nearby lightning coupling. IC Role / Device Role / Timing Role: Unidirectional TVS array clamping positive surges on both 24 V and 5 V rails simultaneously. Use Value: Limits transient overshoot to ≤12.9 V, preventing latch-up or gate oxide damage in upstream DC/DC controllers and microcontrollers. |
Use Scenario: Protection of Ethernet PHY interface and auxiliary management bus on carrier-grade line card subjected to IEC 61000-4-5 Class 4 surges. IC Role / Device Role / Timing Role: Dual-cathode TVS placed between isolated DC bias rails and ground to shunt coupled common-mode surges. Use Value: Achieves <100 ps response and 3000 W dissipation without requiring additional series impedance or filtering components. |
| Automotive Body Control Module (BCM) | Renewable Energy Inverter DC Link |
Use Scenario: 12 V battery-supplied microcontroller power domain in BCM facing load-dump and jump-start transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main VDD rail, coordinated with upstream fuse and downstream LDO. Use Value: Withstands 200 A forward surge (8.3 ms) and maintains <100 µA leakage at 12.5 V, supporting low-quiescent-current design. |
Use Scenario: DC link protection in solar string inverters where PV array transients couple into 600–1000 V DC bus during rapid cloud cover transitions. IC Role / Device Role / Timing Role: Secondary clamp staged after MOV-based primary protection to handle residual fast-rising edge energy. Use Value: Sub-100 ps response captures high-frequency components missed by slower MOVs, reducing stress on IGBT gate drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A | Lower PPP (400 W), same VWM (7.5 V), higher VC (12.0 V @ 32.4 A), SMA package (smaller thermal mass). | Suitable for lower-energy ESD/EFT-only environments; not rated for IEC 61000-4-5 Class 3+. | Select MDA3KP7.5AE3 when 3000 W surge immunity and MIL-PRF-19500 screening are required; SMAJ7.5A fits space-constrained PCBs with lower surge exposure. |
| SMCJ7.5A | Same PPP (3000 W), identical VWM (7.5 V) and VC (12.9 V @ 100 A), but SMC package (larger footprint, higher thermal inertia). | Compatible with same IEC 61000-4-5 Class 3–4 tests; lacks e3 RoHS marking and MIL upscreening path. | Choose MDA3KP7.5AE3 for RoHS compliance and traceable high-reliability sourcing; SMCJ7.5A offers cost-effective alternative where upscreening is unnecessary. |
Compared with SMAJ7.5A and SMCJ7.5A, the MDA3KP7.5AE3 uniquely combines 3000 W surge rating, RoHS-compliant e3 termination, and formal MIL-PRF-19500 upscreening eligibility-making it the only option qualified for mission-critical aerospace and defense platforms requiring full lot traceability and 3σ ID screening.
Availability
MDA3KP7.5AE3 is available at Aetrix Electronics and suitable for industrial power supply protection, telecom line card surge suppression, and automotive body control modules requiring stable component supply with long-term lifecycle assurance.
Supply support for MDA3KP7.5AE3 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 MIL-qualified transient suppression in compact surface-mount packages for systems demanding IEC 61000-4-5 compliance, ESD immunity, and full lot traceability-especially in harsh-environment control and power conversion applications.
FAQ
What is the clamping voltage of MDA3KP7.5AE3 at its rated peak pulse current?
The MDA3KP7.5AE3 has a maximum clamping voltage (VC) of 12.9 V at 100 A peak pulse current (IPP) under 10/1000 µs waveform conditions. This value is guaranteed across temperature and represents the upper limit of voltage imposed on protected circuitry during a full-rated surge event. The MDA3KP7.5AE3 achieves this clamping performance while maintaining low leakage and high thermal stability in its TO-277A package.
Is MDA3KP7.5AE3 suitable for bidirectional signal line protection?
No, MDA3KP7.5AE3 is unidirectional only, as indicated by the absence of the "C" suffix in its nomenclature. It conducts surge current from cathode to anode and must be oriented with cathodes toward the protected line(s) and the common anode to ground or return. For bidirectional protection, Microsemi specifies variants like MDA3KP7.5CE3; the MDA3KP7.5AE3 cannot safely clamp negative-going transients.
Does MDA3KP7.5AE3 meet RoHS requirements?
Yes, the "e3" suffix in MDA3KP7.5AE3 explicitly denotes RoHS compliance per EU Directive 2011/65/EU, with matte-tin plating and lead-free construction validated per JEDEC J-STD-020B. The device requires no dry pack and is rated Moisture Sensitivity Level 1, enabling direct use in standard Pb-free reflow processes without preconditioning.
Can MDA3KP7.5AE3 be used for IEC 61000-4-5 Class 4 lightning surge testing?
Yes, MDA3KP7.5AE3 is rated for IEC 61000-4-5 Class 4 secondary lightning protection when tested with 2 Ω source impedance, as confirmed in the manufacturer's application table. Its 3000 W peak pulse power rating and 12.9 V clamping voltage at 100 A ensure compliance with the 4 kV open-circuit voltage requirement under that configuration.
What is the junction temperature range for MDA3KP7.5AE3?
The MDA3KP7.5AE3 operates across a junction temperature range of –55 °C to +150 °C, enabling deployment in extended-temperature environments such as under-hood automotive ECUs, outdoor base station power supplies, and industrial motor drive controls. This wide range is supported by its thermosetting epoxy package and wafer-level process controls verified per MIL-PRF-19500 screening protocols.
MADA3KP7.5AE3 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):
- 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:
- -
MADA3KP7.5AE3 FAQ
1.How can I place an order for MADA3KP7.5AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MADA3KP7.5AE3 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 MADA3KP7.5AE3 reliable?
The price and inventory of MADA3KP7.5AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MADA3KP7.5AE3 is usually 5 days.
3.What payment methods are accepted for MADA3KP7.5AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MADA3KP7.5AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MADA3KP7.5AE3?
MADA3KP7.5AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MADA3KP7.5AE3 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 MADA3KP7.5AE3?
For technical support, including MADA3KP7.5AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MADA3KP7.5AE3 requirements.
6.How does Aetrix verify that MADA3KP7.5AE3 is sourced from the original manufacturer or authorized distributors?
All MADA3KP7.5AE3 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 MADA3KP7.5AE3 meets industry standards.
7.What is the process for return or replacement of MADA3KP7.5AE3?
All MADA3KP7.5AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MADA3KP7.5AE3, 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 MADA3KP7.5AE3 part is unused and in its original packaging.
Return procedure for MADA3KP7.5AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MADA3KP7.5AE3 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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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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