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Diodes Incorporated 3.0SMCJ12A-13
- Part No.:
- 3.0SMCJ12A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ12A-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:6,701
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Product details
Overview
3.0SMCJ12A-13 from Diodes Incorporated is a unidirectional 3000W surface-mount transient voltage suppressor (TVS) diode with 12V reverse standoff voltage, 13.3–14.7V breakdown range at 1mA, and 19.9V max clamping voltage at 150.8A 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. Used in DC power input protection for industrial PLCs and telecom power supplies.
For engineers reviewing the 3.0SMCJ12A-13 datasheet, 3.0SMCJ12A-13 pinout, 3.0SMCJ12A-13 application, or 3.0SMCJ12A-13 equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD, peak pulse current handling under 10/1000μs surge, thermal derating above +25°C, and SMC package solderability per MIL-STD-202.
Technical Context
This TVS diode employs glass-passivated silicon junction construction to achieve fast response (<1ps) to transients and stable clamping performance across temperature. Its unidirectional configuration integrates a cathode band for polarity identification and supports DC-biased lines where reverse conduction must be blocked.
Rated for 3000W peak pulse power per 10×1000μs waveform, it sustains 300A non-repetitive forward surge (8.3ms half-sine) when mounted on 8mm² copper land. Thermal derating begins linearly above +25°C ambient, reaching 50% power capability at +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - Handles 10/1000μs surges up to 3kW without failure |
| Reverse Standoff Voltage (VRWM) | 12V - Maximum continuous DC or RMS voltage before significant leakage |
| Breakdown Voltage (VBR) | 13.3–14.7V @ 1mA - Confirmed avalanche initiation range for reliable turn-on |
| Max Clamping Voltage (VC) | 19.9V @ 150.8A - Upper limit of voltage seen by downstream circuit during rated surge |
| ESD Rating | 30kV air / 30kV contact per IEC-61000-4-2 - Validated immunity to human-body discharge events |
| Operating Temperature | –55°C to +150°C - Supports under-hood automotive and industrial ambient extremes |
| Package | SMC (DO-214AB) - Surface-mount outline with 6.9mm × 4.4mm pad footprint and 2.5mm body height |
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 | Transient return path | Connected to ground or low-impedance reference; carries full surge current during clamping |
| Cathode | Protected line connection | Connected to DC input rail (e.g., +12V); blocks reverse leakage below VRWM |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Ensures stable VBR and low leakage over 1000+ thermal cycles and humidity exposure |
| Lead-free & RoHS-compliant finish | Matte tin-plated leads meet MIL-STD-202 solderability requirements and EU directives |
| IEC-61000-4-2 Level 4 compliance | Validated 30kV air/30kV contact ESD robustness eliminates need for external spark gaps |
| High reliability qualification | JEDEC-qualified for high-reliability applications; suitable for AEC-Q200-aligned designs |
Applications
| Industrial Power Input Protection | Telecom DC Feeds |
|---|---|
Use Scenario: 24V DC input stage of programmable logic controller exposed to load dump and inductive switching noise. IC Role / Device Role: Primary overvoltage clamp placed between input rail and chassis ground. Use Value: Limits transient voltage to ≤19.9V, protecting downstream DC-DC controllers rated for 20V absolute maximum. |
Use Scenario: -48V telecom power distribution board subjected to lightning-induced surges on long cable runs. IC Role / Device Role: Unidirectional TVS shunting positive-going transients on negative-rail systems. Use Value: Withstands 150.8A peak pulse current while maintaining clamping below –42V, preserving -48V system integrity. |
| Automotive Body Control Modules | Medical Equipment Power Entry |
Use Scenario: 12V battery-supplied BCM module encountering ISO 7637-2 Pulse 1 (inductive kick) and Pulse 5a (load dump). IC Role / Device Role: Front-end transient suppression before LDO regulators and CAN transceivers. Use Value: 3000W rating absorbs 12V load dump energy without degradation; TJ rating supports under-dash mounting. |
Use Scenario: AC/DC adapter output stage feeding Class I medical device with strict leakage and safety isolation requirements. IC Role / Device Role: Secondary-side surge protector on isolated 12V output rail. Use Value: Halogen- and antimony-free "Green" construction meets IEC 60601-1 material restrictions; 19.9V clamping avoids overstressing patient-connected circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ12A-13 | 2000W PPK, same VRWM/VBR/VC but lower surge current (104.2A @ 19.9V) | Lower power handling limits use to sub-1kW surge environments | Select when board space allows SMB package and system surge energy is ≤2000W |
| SMCJ12A-13 | Identical specs and SMC package; differs only in part numbering convention (no "3.0" prefix) | No functional difference; legacy marking used interchangeably in production | Drop-in replacement with identical electrical and mechanical behavior |
Compared with SMBJ12A-13, 3.0SMCJ12A-13 delivers 50% higher surge current capacity in the same SMC footprint; versus SMCJ12A-13, it is functionally identical but reflects Diodes' updated naming for 3000W-rated devices.
Availability
3.0SMCJ12A-13 is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, and automotive electronics requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 3.0SMCJ12A-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 device belongs to Diodes' 3000W SMCJ TVS family, engineered for high-energy transient suppression in harsh-environment power interfaces where reliability and repeatable clamping performance are critical.
FAQ
What is the maximum clamping voltage of 3.0SMCJ12A-13 at its rated peak pulse current?
The maximum clamping voltage is 19.9V measured at 150.8A peak pulse current under the standard 10×1000μs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events.
Is 3.0SMCJ12A-13 suitable for bidirectional signal line protection?
No - 3.0SMCJ12A-13 is unidirectional, indicated by its cathode band marking. For bidirectional protection (e.g., data lines), use the bi-directional variant 3.0SMCJ12CA-13, which has symmetrical clamping in both polarities and no polarity indicator.
Does this TVS diode require derating at elevated ambient temperatures?
Yes - pulse power and current ratings must be derated linearly above +25°C ambient, per Figure 1 in DS30818. At +100°C, peak pulse power is reduced to approximately 65% of 3000W (1950W), and clamping performance remains within specification.
Can 3.0SMCJ12A-13 be used in AEC-Q200 qualified automotive designs?
While not AEC-Q200 certified itself, this part is JEDEC-qualified for high reliability and manufactured in IATF 16949-certified facilities. For formal automotive qualification, Diodes offers the Q-suffix variant 3.0SMCJ12AQ-13, which includes PPAP documentation and extended stress testing.
3.0SMCJ12A-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AB, SMC
- Series:
- 3.0SMCJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12V
- Voltage - Breakdown (Min):
- 13.3V
- Voltage - Clamping (Max) @ Ipp:
- 19.9V
- Current - Peak Pulse (10/1000µs):
- 150.8A
- 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:
- SMC
3.0SMCJ12A-13 FAQ
1.How can I place an order for 3.0SMCJ12A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ12A-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 3.0SMCJ12A-13 reliable?
The price and inventory of 3.0SMCJ12A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ12A-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ12A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ12A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ12A-13?
3.0SMCJ12A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ12A-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 3.0SMCJ12A-13?
For technical support, including 3.0SMCJ12A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ12A-13 requirements.
6.How does Aetrix verify that 3.0SMCJ12A-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ12A-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 3.0SMCJ12A-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ12A-13?
All 3.0SMCJ12A-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ12A-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 3.0SMCJ12A-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ12A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ12A-13 Tags
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ESD9B5.0ST5G
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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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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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