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Diodes Incorporated 3.0SMCJ28A-13
- Part No.:
- 3.0SMCJ28A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ28A-13.pdf
- Description:
- TVS DIODE 28VWM 45.4VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:6,063
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Product details
Overview
3.0SMCJ28A-13 from Diodes Incorporated is a unidirectional 3000W surface-mount transient voltage suppressor (TVS) diode with 28V reverse standoff voltage, 31.1–34.4V breakdown range at 1mA, and 45.4V max clamping voltage at 66.1A peak pulse current. It provides IEC-61000-4-2 ESD protection (30kV air/30kV contact), HBM 8kV, and operates from –55°C to +150°C in automotive and industrial power rail surge suppression.
For engineers reviewing the 3.0SMCJ28A-13 datasheet, 3.0SMCJ28A-13 pinout, 3.0SMCJ28A-13 application, or 3.0SMCJ28A-13 equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD, peak pulse current handling under 10/1000μs transients, thermal derating above +25°C ambient, and SMC package solderability per MIL-STD-202.
Technical Context
This TVS diode uses glass-passivated silicon junction construction for stable breakdown and low leakage (<5μA at 28V). Its unidirectional configuration features a cathode band for polarity identification and is optimized for DC power line protection where reverse conduction must be blocked during normal operation.
The device meets JEDEC high-reliability standards and is rated for 3000W non-repetitive peak pulse power per 10×1000μs waveform. Clamping performance is specified at TA = +25°C with derating above that temperature per Figure 1, and it supports surge currents up to 300A (8.3ms half-sine) when mounted on 8.00mm² copper land patterns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains single 10×1000μs transients without failure |
| Reverse Standoff Voltage (VRWM) | 28.0V - maximum continuous DC or RMS voltage before significant leakage |
| Breakdown Voltage (VBR) | 31.1–34.4V @ 1mA - ensures reliable turn-on before downstream IC overvoltage |
| Max Clamping Voltage (VC) | 45.4V @ 66.1A - limits voltage seen by protected circuit during surge |
| ESD Rating | 30kV air / 30kV contact per IEC-61000-4-2 - withstands common electrostatic discharge events |
| Operating Temperature | –55°C to +150°C - suitable for under-hood automotive and industrial environments |
| Package | SMC (DO-214AB) - surface-mount footprint with 7.75–8.13mm body length and 2.75–3.18mm thickness |
Pinout & Package
Package: SMC (DO-214AB), molded plastic, UL 94V-0 rated, 0.21g weight. Cathode band denotes terminal polarity for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference node | Connected to system ground; conducts surge current to GND during overvoltage |
| Cathode | Protected line input | Connected to power rail (e.g., 24V supply); blocks reverse current in normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Ensures stable VBR and low parameter drift across temperature and lifetime |
| 3000W peak pulse rating | Handles high-energy surges such as ISO 7637-2 Pulse 1/2a/5a in automotive 24V systems |
| RoHS-compliant matte tin plating | Enables lead-free reflow soldering per J-STD-020 Level 1 moisture sensitivity |
| Low clamping ratio (VC/VRWM = 1.62) | Minimizes overvoltage stress on downstream regulators and microcontrollers |
| HBM 8kV / CDM 1kV ESD rating | Provides robust handling protection during PCB assembly and field service |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: 24V battery-fed control modules exposed to load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between fused 24V rail and DC-DC converter input. Use Value: Clamps ISO 7637-2 Pulse 5a (75V/100ms) to ≤45.4V, protecting 40V-rated buck controller ICs. |
Use Scenario: 24V digital input channels on programmable logic controllers subject to field wiring surges. IC Role / Device Role / Timing Role: Primary surge clamp on each isolated input channel before optocoupler or Schmitt trigger. Use Value: Limits transient energy to safe levels for 5V logic interface ICs while maintaining <5μA leakage at 24V nominal. |
| Telecom Power Supply Input | Renewable Energy Charge Controller |
Use Scenario: 48V PoE-powered equipment front-end subjected to lightning-induced surges on Ethernet cabling. IC Role / Device Role / Timing Role: Secondary TVS stage after gas discharge tube (GDT), absorbing residual energy after GDT crowbar. Use Value: Provides fast-response clamping (ns-scale) with 45.4V ceiling, preventing damage to 52V-rated DC-DC controllers. |
Use Scenario: Solar panel input stage of MPPT charge controller facing induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Bidirectional-capable variant used (3.0SMCJ28CA-13), but unidirectional version applied where polarity is fixed and reverse blocking required. Use Value: Withstands 3000W pulses while maintaining <5μA leakage at 28V VRWM, ensuring minimal daytime standby loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ28A-13 (Diodes Inc.) | Same VRWM and VC, but lower 600W PPK; SMB package (smaller footprint, lower thermal mass) | Suitable only for lower-energy transients (e.g., IEC 61000-4-4 level 3), not load dump | Select when board space is constrained and surge threat level is limited to EFT or ESD only. |
| 1.5SMCJ28A (ON Semiconductor) | Identical electrical specs and SMC package; minor differences in leakage (≤10μA vs. ≤5μA) and marking code | Drop-in replacement in most designs; validated for AEC-Q101 automotive qualification | Choose when dual-sourcing or automotive PPAP compliance is required beyond Diodes' JEDEC qualification. |
Compared with SMBJ28A-13, 3.0SMCJ28A-13 delivers five times higher surge energy handling in the same SMC footprint; versus 1.5SMCJ28A, it offers tighter leakage control and identical clamping but requires verification of second-source qualification status for safety-critical use.
Availability
3.0SMCJ28A-13 is available at Aetrix Electronics and suitable for automotive power distribution, industrial PLC I/O protection, telecom power supply input, and renewable energy charge controller applications requiring stable component supply and full traceability.
Supply support for 3.0SMCJ28A-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
This part belongs to Diodes' 3.0SMCJ series of high-power TVS diodes, engineered specifically for robust transient suppression in automotive, industrial, and telecom infrastructure where 3000W surge immunity and wide temperature operation are mandatory.
FAQ
What is the maximum clamping voltage of the 3.0SMCJ28A-13 under a 10×1000μs transient?
The maximum clamping voltage is 45.4V at 66.1A peak pulse current, measured per the 10×1000μs waveform defined in Figure 2 of DS30818 Rev. 18-2. This value is guaranteed across the full operating temperature range and represents the upper limit of voltage imposed on the protected circuit during worst-case surge conditions.
Is the 3.0SMCJ28A-13 suitable for bidirectional signal line protection?
No - the "A" suffix indicates unidirectional configuration with a cathode band. For bidirectional protection (e.g., AC lines or data buses), the "CA" variant (3.0SMCJ28CA-13) must be used, which has symmetrical breakdown in both directions and no polarity marking.
What is the recommended PCB pad layout for optimal thermal performance?
Mount the device on 8.00mm² (minimum) copper land areas per terminal, as specified in Note 6 of DS30818. The suggested SMC pad layout (C=6.90mm, G=4.40mm, X=2.50mm, X1=9.40mm, Y=3.30mm) ensures adequate heat dissipation and mechanical reliability during reflow and thermal cycling.
Does the 3.0SMCJ28A-13 meet AEC-Q200 requirements for passive components?
No - this part is qualified to JEDEC high-reliability standards and supports automotive applications via change control, but it is not AEC-Q200 certified. For AEC-Q200 compliance, select the Q-suffix automotive-grade variant (e.g., 3.0SMCJ28AQ-13) listed in Diodes' automotive product portfolio.
3.0SMCJ28A-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AB, SMC
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 28V
- Voltage - Breakdown (Min):
- 31.1V
- Voltage - Clamping (Max) @ Ipp:
- 45.4V
- Current - Peak Pulse (10/1000µs):
- 66.1A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 1800pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
3.0SMCJ28A-13 FAQ
1.How can I place an order for 3.0SMCJ28A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ28A-13 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 3.0SMCJ28A-13 reliable?
The price and inventory of 3.0SMCJ28A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ28A-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ28A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ28A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ28A-13?
3.0SMCJ28A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ28A-13 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 3.0SMCJ28A-13?
For technical support, including 3.0SMCJ28A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ28A-13 requirements.
6.How does Aetrix verify that 3.0SMCJ28A-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ28A-13 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 3.0SMCJ28A-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ28A-13?
All 3.0SMCJ28A-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ28A-13, 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 3.0SMCJ28A-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ28A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ28A-13 Tags
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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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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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