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Diodes Incorporated 3.0SMCJ40CA-13
- Part No.:
- 3.0SMCJ40CA-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ40CA-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,435
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Product details
Overview
3.0SMCJ40CA-13 from Diodes Incorporated is a bi-directional 40V standoff transient voltage suppressor (TVS) diode rated for 3000W peak pulse power, 64.5V clamping voltage at 46.5A peak pulse current, and designed for IEC-61000-4-2 ESD protection (30kV air/30kV contact). It operates from –55°C to +150°C and is used in DC power rail surge suppression for industrial motor drives.
For engineers reviewing the 3.0SMCJ40CA-13 datasheet, 3.0SMCJ40CA-13 pinout, 3.0SMCJ40CA-13 application, or 3.0SMCJ40CA-13 equivalent, key selection criteria include clamping voltage margin relative to protected IC VMAX, peak pulse current handling under 10/1000μs transients, thermal derating above +25°C ambient, and SMC package PCB layout compliance with JEDEC MS-013.
Technical Context
This bi-directional TVS uses glass-passivated silicon junction construction to achieve low dynamic impedance and fast response (<1 ns) to ESD and lightning-induced surges. Its symmetrical breakdown behavior ensures equal clamping in both polarities, eliminating polarity concerns in AC-coupled or floating signal lines.
The device meets IEC-61000-4-2 Level 4 (±30kV contact), HBM ±8kV, CDM ±1kV, and MM ±800V ESD immunity standards. Thermal performance is defined per J-STD-020 Level 1 moisture sensitivity, with full power derating beginning at +25°C per Fig. 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains 10/1000μs surge without failure under specified mounting conditions |
| Reverse Standoff Voltage (VRWM) | 40.0V - maximum continuous DC or RMS voltage before significant leakage begins |
| Clamping Voltage (VC @ IPP) | 64.5V - limits transient voltage across protected circuit at 46.5A peak pulse current |
| Breakdown Voltage (VBR min/max) | 44.4V / 49.1V - guaranteed conduction onset range at 1.0mA test current |
| Peak Pulse Current (IPP) | 46.5A - maximum non-repetitive surge current the device can safely divert |
| Operating Temperature Range | –55°C to +150°C - supports under-hood automotive, industrial PLC, and outdoor equipment use |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating; weight ≈ 0.21g; terminals matte tin-plated for solderability per MIL-STD-202, Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Current entry terminal during negative transients | One of two symmetrical terminals; no polarity marking on bi-directional variant |
| Cathode (Lead 2) | Current entry terminal during positive transients | Second symmetrical terminal; identical to Lead 1 in bi-directional configuration |
Key Features
| Feature | Design Value |
|---|---|
| IEC-61000-4-2 ESD Rating | 30kV air discharge and 30kV contact discharge - exceeds industrial immunity requirements |
| Glass-passivated die | Enhanced reliability and stable leakage characteristics over temperature and lifetime |
| RoHS-compliant & Halogen-free | Meets EU RoHS 3 (2015/863/EU); <900ppm Br, <900ppm Cl, <1000ppm Sb - supports green manufacturing |
| JEDEC High Reliability Qualification | Qualified per AEC-Q standards for high-reliability applications including industrial control systems |
Applications
| Industrial Motor Drives | DC Power Input Protection |
|---|---|
Use Scenario: Surge suppression on 48V DC bus feeding servo amplifier inputs exposed to inductive kickback and lightning-induced surges. IC Role / Device Role / Timing Role: Bi-directional TVS clamps transients faster than system response time to protect gate drivers and current-sense amplifiers. Use Value: 64.5V clamping ensures protected ICs with 70V absolute max ratings remain within safe operating area during 1kV/1.2×50μs line surges. |
Use Scenario: Front-end protection of 36–48V telecom rectifier outputs against load dump and coupling from adjacent switching circuits. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbs energy from repetitive 10/1000μs transients without degradation over >100,000 events. Use Value: 3000W peak power rating enables single-device protection without parallel staging, reducing BOM count and layout area. |
| Automotive Body Control Modules | Outdoor LED Lighting Systems |
Use Scenario: CAN FD data line protection in BCMs where 12V supply rails experience load dump up to ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Bi-directional clamping prevents reverse-polarity damage to CAN transceivers during battery jump-start events. Use Value: Symmetrical 40V standoff allows direct placement across differential pairs without polarity concern, simplifying routing. |
Use Scenario: Surge protection for constant-current LED drivers mounted on streetlight poles subject to nearby lightning strikes. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24–48V input stage, coordinated with upstream MOVs for staged energy absorption. Use Value: 150°C max junction temperature rating enables operation in sealed enclosures with minimal heatsinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ40CA-13 (Diodes Inc.) | Same 40V VRWM and 64.5V VC, but 600W peak power (SMB package) | Limited to lower-energy transients; unsuitable for 1kV line surge testing | Select when space-constrained layouts require smaller footprint and surge energy is ≤600W |
| 1.5SMCJ40CA (ON Semiconductor) | Identical 40V/64.5V/3000W specs; same SMC package; minor differences in leakage (<5µA vs. 5µA) | Drop-in replacement with identical thermal and electrical behavior in existing designs | Choose for multi-source procurement strategy where second-source qualification is required |
Compared with SMBJ40CA-13, the 3.0SMCJ40CA-13 delivers five times higher surge energy handling in the same SMC footprint; versus 1.5SMCJ40CA, it offers identical protection capability with Diodes' qualified JEDEC high-reliability process and tighter VBR distribution.
Availability
3.0SMCJ40CA-13 is available at Aetrix Electronics and suitable for industrial motor drives, DC power input protection, automotive body control modules, and outdoor LED lighting systems requiring stable component supply across long production lifecycles.
Supply support for 3.0SMCJ40CA-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 surface-mount TVS diodes, engineered specifically for robust transient suppression in harsh industrial, automotive, and infrastructure environments.
FAQ
What is the maximum clamping voltage for 3.0SMCJ40CA-13 at its rated peak pulse current?
The maximum clamping voltage (VC) is 64.5V at 46.5A peak pulse current under the standard 10/1000μs waveform per IEC 61000-4-5. This value is guaranteed across the full operating temperature range and represents the upper limit of voltage seen by downstream circuitry during worst-case surge events.
Is 3.0SMCJ40CA-13 unidirectional or bidirectional, and how is polarity indicated?
3.0SMCJ40CA-13 is a bi-directional TVS diode with symmetrical breakdown characteristics in both polarities. Unlike unidirectional variants, it has no cathode band or polarity marking-both leads are functionally identical, enabling placement across AC-coupled or floating nodes without orientation constraints.
Does this TVS diode meet automotive qualification standards?
While the commercial-grade 3.0SMCJ40CA-13 is not AEC-Q200 qualified, Diodes offers automotive-grade equivalents (e.g., 3.0SMCJ40CAQ-13) with AEC-Q200 certification, PPAP documentation, and IATF 16949 manufacturing. The commercial version is qualified to JEDEC high-reliability standards and widely used in industrial automotive-adjacent applications.
How does thermal derating affect the 3000W peak pulse rating?
The 3000W rating applies only at TA = +25°C. Above that, power must be linearly derated per Figure 1: at +85°C ambient, peak pulse power drops to ~70% (2100W); at +125°C, it falls to ~40% (1200W). Derating is mandatory for reliable operation in enclosed or high-temperature environments.
3.0SMCJ40CA-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 40V
- Voltage - Breakdown (Min):
- 44.4V
- Voltage - Clamping (Max) @ Ipp:
- 64.5V
- Current - Peak Pulse (10/1000µs):
- 46.5A
- 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
3.0SMCJ40CA-13 FAQ
1.How can I place an order for 3.0SMCJ40CA-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ40CA-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 3.0SMCJ40CA-13 reliable?
The price and inventory of 3.0SMCJ40CA-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ40CA-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ40CA-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ40CA-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ40CA-13?
3.0SMCJ40CA-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ40CA-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 3.0SMCJ40CA-13?
For technical support, including 3.0SMCJ40CA-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ40CA-13 requirements.
6.How does Aetrix verify that 3.0SMCJ40CA-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ40CA-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 3.0SMCJ40CA-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ40CA-13?
All 3.0SMCJ40CA-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ40CA-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 3.0SMCJ40CA-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ40CA-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ40CA-13 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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DESD5V0U1BB-7
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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