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Microchip Technology MADA3KP28CAE3
- Part No.:
- MADA3KP28CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MADA3KP28CAE3.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:7,779
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Product details
Overview
MDA3KP28CAE3 from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array in a surface-mount DO-214AB package, featuring 28 V standoff voltage (VWM), 31.1–34.4 V breakdown voltage (V(BR)), 45.4 V clamping voltage (VC) at 66 A peak pulse current, and -55 to +150 °C operating junction temperature. It delivers secondary lightning protection per IEC61000-4-5 (42 Ω, 12 Ω, and 2 Ω source impedances) and ESD/EFT suppression per IEC61000-4-2/4-4 in telecom power interfaces.
For engineers reviewing the MDA3KP28CAE3 datasheet, MDA3KP28CAE3 pinout, MDA3KP28CAE3 application, or MDA3KP28CAE3 equivalent, key selection criteria include bidirectional polarity, 3000 W 10/1000 µs surge rating, RoHS-compliant matte-tin plating, moisture sensitivity level 1, and compatibility with automated SMT assembly without dry pack requirements.
Technical Context
The MDA3KP28CAE3 operates as a clamping-type TVS diode array with symmetrical bidirectional avalanche breakdown behavior, enabling protection of AC-coupled or differential signal/power lines against both polarities of transients. Its sub-5 ns response time ensures effective suppression of ESD (IEC61000-4-2) and fast EFT bursts (IEC61000-4-4).
Designed for high-reliability industrial and telecom applications, it undergoes full lot surge testing and 3σ screening on standby current (ID), with wafer and assembly lot traceability compliant with MIL-PRF-19500 screening options. The device sustains 3000 W peak pulse power at 25 °C, derating linearly above 25 °C per Figure 3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 28 V - Maximum continuous reverse working voltage before clamping begins; matches 24 V nominal DC systems with safety margin. |
| V(BR) min/max | 31.1–34.4 V - Breakdown occurs within this range at 1 mA; ensures predictable turn-on across temperature and process variation. |
| VC @ IPP | 45.4 V at 66 A - Clamping voltage under 10/1000 µs surge; limits downstream voltage stress during worst-case transients. |
| PPP | 3000 W - Peak pulse power handling capability at 25 °C; defines maximum energy absorption per transient event. |
| ID @ VWM | 2 µA - Standby leakage current at 28 V; negligible power loss and minimal impact on high-impedance circuits. |
| TJ/TSTG | -55 to +150 °C - Extended thermal range supports operation in harsh environments including outdoor base stations and industrial controls. |
| Moisture Level | IPC/JEDEC J-STD-020B Level 1 - No dry pack required; compatible with standard SMT reflow profiles without baking. |
Pinout & Package
MDA3KP28CAE3 uses a DO-214AB (SMC) surface-mount package with two terminals: Pin 1 (cathode) and Pin 2 (anode), configured in bidirectional symmetry. Polarity is marked by a dot adjacent to Pin 1 on the top surface. The void-free UL94V-0 epoxy body measures 21.03 × 6.86 × 8.64 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Bidirectional) | Shared cathode node for symmetrical avalanche conduction in both directions; connects to protected line or common reference point. |
| Pin 2 | Anode (Bidirectional) | Shared anode node completing the bidirectional path; ties to ground or return plane in clamp-to-ground configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables single-device protection of AC signals or differential buses (e.g., RS-485, Ethernet PHY) without polarity concerns. |
| 3000 W 10/1000 µs rating | Withstands high-energy surges from lightning-induced coupling or inductive switching in telecom and industrial power rails. |
| MIL-PRF-19500 screening option | Supports high-reliability programs requiring lot traceability, 3σ ID screening, and extended environmental qualification. |
| RoHS-compliant e3 marking | Matte-tin plating meets lead-free soldering requirements and eliminates Pb-based contamination risks in production. |
| Sub-5 ns response time | Clamps transients before sensitive ICs experience overvoltage damage-critical for protecting USB, CAN, and Ethernet PHYs. |
Applications
| Telecom Power Input Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting 24 V DC power inputs in cellular base station remote radio units exposed to induced lightning surges. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed between input rail and chassis ground to shunt surge energy. Use Value: Limits transient voltage to ≤45.4 V during 66 A 10/1000 µs events, preventing damage to upstream DC/DC converters and PMICs. | Use Scenario: Safeguarding half-duplex RS-485 transceivers in factory automation PLCs subject to EFT noise and cable discharge events. IC Role / Device Role / Timing Role: Line-to-line and line-to-ground protector on A/B differential pair, leveraging bidirectional symmetry. Use Value: Sub-5 ns response clamps ESD pulses before transceiver input stages exceed absolute maximum ratings. |
| Automotive Body Control Module (BCM) Power Rail | Smart Grid Metering Interface |
Use Scenario: Securing 12 V supply lines in BCMs against load dump and alternator ripple-induced transients. IC Role / Device Role / Timing Role: Clamp-to-ground TVS on main power input, coordinated with upstream fuses and downstream LDOs. Use Value: 3000 W rating handles ISO 7637-2 Pulse 5a (load dump) energy without degradation after repeated events. | Use Scenario: Protecting isolated power supplies and communication ports in ANSI C12.22-compliant smart meters installed in utility substations. IC Role / Device Role / Timing Role: Secondary lightning protection stage per IEC61000-4-5 (42 Ω source) on AC/DC converter input. Use Value: Certified Class 1–4 performance enables compliance with utility-grade surge immunity requirements up to 4 kV. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ28CA | 600 W PPP rating, same VWM and bidirectional polarity, DO-214AA package (smaller footprint, lower thermal mass) | Limited to lower-energy transients; unsuitable for IEC61000-4-5 Class 4 or high-current lightning events | Select when space-constrained and surge threat is limited to ESD/EFT only. |
| 1.5KE28CA | 1500 W PPP, axial-leaded DO-15 package, higher parasitic inductance (~15 nH vs. <5 nH for SMC) | Not suitable for high-frequency surge suppression; requires through-hole assembly and board real estate | Choose only for legacy through-hole designs where rework to SMT is impractical. |
Compared with SMBJ28CA and 1.5KE28CA, the MDA3KP28CAE3 provides 2× and 2× higher peak pulse power respectively, lower clamping impedance due to SMC package geometry, and verified compliance with MIL-PRF-19500 screening-making it the sole option for mission-critical telecom and industrial surge protection.
Availability
MDA3KP28CAE3 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and smart grid metering requiring stable component supply, long-term lifecycle support, and traceable sourcing for high-reliability deployments.
Supply support for MDA3KP28CAE3 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 designed specifically for robust secondary lightning and ESD protection in mission-critical power and data interfaces where failure is not acceptable-targeting telecom base stations, railway signaling, and utility substation electronics.
FAQ
What is the polarity configuration of the MDA3KP28CAE3?
The MDA3KP28CAE3 is a bidirectional TVS diode, indicated by the "C" suffix in its part number. It features symmetrical avalanche characteristics between its two terminals, allowing it to clamp transients of either polarity without requiring orientation during PCB layout. This makes MDA3KP28CAE3 ideal for protecting AC-coupled lines or differential buses such as RS-485 or Ethernet PHY interfaces.
Does the MDA3KP28CAE3 meet IEC61000-4-5 for lightning surge immunity?
Yes, the MDA3KP28CAE3 is rated for secondary lightning protection per IEC61000-4-5 under multiple source impedances: Class 1–4 with 42 Ω, Class 1–3 with 12 Ω, and Class 2 with 2 Ω source impedance. Its 3000 W peak pulse power rating and 45.4 V clamping voltage at 66 A ensure compliance when used in properly designed front-end protection circuits, as validated in Microsemi's RF01243 application note.
What is the package type and mounting method for MDA3KP28CAE3?
The MDA3KP28CAE3 uses a DO-214AB (SMC) surface-mount package with a void-free UL94V-0 epoxy body and matte-tin-plated terminals. It is designed for reflow soldering on PCBs using standard lead-free profiles. The package has no moisture sensitivity restrictions (J-STD-020B Level 1), eliminating the need for pre-baking prior to assembly-reducing manufacturing complexity and cost for MDA3KP28CAE3 integration.
How does the MDA3KP28CAE3 compare to unidirectional TVS devices like MDA3KP28AE3?
The MDA3KP28CAE3 differs from the unidirectional MDA3KP28AE3 solely in polarity configuration: "C" denotes bidirectional, while blank denotes unidirectional. Both share identical electrical specs (VWM = 28 V, VC = 45.4 V, PPP = 3000 W), but MDA3KP28CAE3 protects against transients of both polarities on the same line, whereas MDA3KP28AE3 only clamps positive-going surges relative to ground. Use MDA3KP28CAE3 for AC or floating lines; use MDA3KP28AE3 for DC rail-to-ground protection.
Is the MDA3KP28CAE3 suitable for automotive applications per AEC-Q200?
The MDA3KP28CAE3 is not AEC-Q200 qualified. While it operates from -55 to +150 °C and supports high-reliability screening per MIL-PRF-19500, Microsemi's documentation does not list AEC-Q200 qualification for this part. For automotive body control or infotainment systems requiring AEC-Q200 compliance, alternate TVS devices with explicit qualification-such as certain Littelfuse Automotive TVS families-should be evaluated instead of MDA3KP28CAE3.
MADA3KP28CAE3 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):
- 28V
- Voltage - Breakdown (Min):
- 31.1V
- Voltage - Clamping (Max) @ Ipp:
- 45.4V
- Current - Peak Pulse (10/1000µs):
- 66A
- 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:
- -
MADA3KP28CAE3 FAQ
1.How can I place an order for MADA3KP28CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MADA3KP28CAE3 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 MADA3KP28CAE3 reliable?
The price and inventory of MADA3KP28CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MADA3KP28CAE3 is usually 5 days.
3.What payment methods are accepted for MADA3KP28CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MADA3KP28CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MADA3KP28CAE3?
MADA3KP28CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MADA3KP28CAE3 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 MADA3KP28CAE3?
For technical support, including MADA3KP28CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MADA3KP28CAE3 requirements.
6.How does Aetrix verify that MADA3KP28CAE3 is sourced from the original manufacturer or authorized distributors?
All MADA3KP28CAE3 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 MADA3KP28CAE3 meets industry standards.
7.What is the process for return or replacement of MADA3KP28CAE3?
All MADA3KP28CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MADA3KP28CAE3, 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 MADA3KP28CAE3 part is unused and in its original packaging.
Return procedure for MADA3KP28CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MADA3KP28CAE3 Tags
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