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Vishay General Semiconductor - Diodes Division SMCJ8.0CA-M3/57T
- Part No.:
- SMCJ8.0CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ8.0CA-M3/57T.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,161
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Product details
Overview
SMCJ8.0CA-M3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on signal or power lines. It features a 8.0 V stand-off voltage (VWM), 13.6 V maximum clamping voltage (VC) at 110.3 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMCJ8.0CA-M3/57T datasheet, SMCJ8.0CA-M3/57T pinout, SMCJ8.0CA-M3/57T application, or SMCJ8.0CA-M3/57T equivalent, key selection criteria include bidirectional clamping capability, halogen-free RoHS-compliant construction (M3 suffix), AEC-Q101 qualification eligibility, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional CA configuration, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance, critical for repeatable clamping under repetitive ESD or load-switching events.
The device is rated for -55 °C to +150 °C operating junction temperature and exhibits a 0.069 %/°C temperature coefficient of breakdown voltage (VBR), supporting predictable performance across automotive thermal profiles. Thermal resistance is 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-lead), confirming suitability for moderate-power transient absorption without active cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR min/max | 8.89 V / 9.83 V at 1.0 mA test current - Validated breakdown range ensures reliable turn-on during overvoltage events. |
| VC @ IPPM | 13.6 V at 110.3 A - Clamped voltage seen by protected circuit during 10/1000 μs surge; limits stress on downstream ICs. |
| PPPM | 1500 W - Peak transient energy absorption capacity using standard 10/1000 μs waveform per ANSI/IEEE C62.35. |
| ID @ VWM | 50 μA - Reverse leakage at stand-off voltage; low enough to avoid signal integrity impact on high-impedance lines. |
| TJ max. | +150 °C - Maximum junction temperature rating enables use in under-hood automotive and industrial environments. |
| Package | SMC (DO-214AB) - Surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with IPC-7351B standard land patterns. |
Pinout & Package
SMCJ8.0CA-M3/57T uses the SMC (DO-214AB) package: a two-terminal, symmetrical, bidirectional surface-mount device with no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no functional distinction in CA devices. |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; device conducts equally in both directions above VBR threshold. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., CAN, RS-485) without external polarity management. |
| 1500 W peak pulse power | Withstands high-energy transients from inductive switching (e.g., solenoid drivers) or lightning-induced surges in industrial fieldbus nodes. |
| Halogen-free & RoHS-compliant (M3) | Meets environmental compliance requirements for automotive and consumer electronics without compromising surge robustness. |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow soldering without moisture-related popcorning, eliminating pre-bake requirements in production. |
| AEC-Q101 qualification path | Base P/NHM3_X variant available for automotive applications; this M3 suffix part shares identical die and construction for qualification readiness. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting analog output lines of engine coolant temperature sensors exposed to load-dump and jump-start transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed between signal line and ground to clamp ±100 V spikes within 1 ns response time. Use Value: Limits voltage seen by ADC input to ≤13.6 V, preventing latch-up or damage to 3.3 V microcontroller front-end circuitry. |
Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from relay coil flyback and EFT bursts. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminals to absorb 1500 W surges while maintaining <50 μA leakage at 24 V nominal. Use Value: Enables reliable operation under IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity testing up to level 4. |
| USB Port ESD Protection | Telecom Line Interface |
|
Use Scenario: Safeguarding USB 2.0 D+/D- data lines against human-body-model (HBM) ESD events in portable medical devices. IC Role / Device Role / Timing Role: Low-capacitance bidirectional suppressor placed inline with differential pair to clamp ±8 kV contact discharge. Use Value: Maintains signal integrity with <15 pF junction capacitance (typ.) at zero bias, avoiding USB 2.0 eye diagram degradation. |
Use Scenario: Protecting FXS/FXO interface circuits in VoIP gateways from lightning-induced longitudinal surges on telephone lines. IC Role / Device Role / Timing Role: Primary-level TVS mounted at line entry point to divert >100 A surges before reaching isolation transformers and codec ICs. Use Value: Achieves UL 497B recognition (QVGQ2 file E136766) for telecom protector classification with validated clamping performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC8.0CA | Same VWM (8.0 V) and VC (13.6 V), but lower PPPM (800 W); smaller SMA package (DO-214AC). | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 level 4 surge testing. | Select when board space is constrained and surge threat level is limited to ESD/EFT only. |
| SMCJ8.0A-M3/57T | Unidirectional version with identical VWM, VC, and PPPM; includes cathode band marking and forward voltage spec (VF = 3.5 V @ 100 A). | Requires correct polarity orientation; not usable on AC or floating differential lines. | Choose only for DC-biased rails where polarity is fixed and forward conduction may be required. |
Compared with SAC8.0CA and SMCJ8.0A-M3/57T, the SMCJ8.0CA-M3/57T uniquely delivers full 1500 W bidirectional clamping in the industry-standard SMC footprint - making it the optimal choice for automotive and industrial designs requiring polarity-agnostic, high-energy transient immunity without layout redesign.
Availability
SMCJ8.0CA-M3/57T is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, USB peripheral protection, and telecom line interface circuits requiring stable component supply and halogen-free compliance.
Supply support for SMCJ8.0CA-M3/57T 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series was engineered for high-power transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where robustness, AEC-Q101 readiness, and standardized SMT packaging are mandatory.
FAQ
What does the "CA" suffix indicate in SMCJ8.0CA-M3/57T?
The "CA" suffix denotes a bidirectional configuration, meaning the SMCJ8.0CA-M3/57T functions identically in both polarities - clamping positive and negative transients without requiring orientation during placement. This differs from unidirectional "A" variants like SMCJ8.0A-M3/57T, which have a marked cathode and conduct only in reverse bias. The CA version is essential for AC-coupled, differential, or floating signal lines.
Is SMCJ8.0CA-M3/57T qualified to AEC-Q101?
The SMCJ8.0CA-M3/57T itself carries the commercial-grade M3 suffix, but Vishay offers the HM3_X variant (e.g., SMCJ8.0CAHM3_A/H) with full AEC-Q101 qualification. The die, construction, and SMC package of SMCJ8.0CA-M3/57T are identical to the qualified version - enabling seamless qualification migration. For production automotive use, specify the HM3_X ordering code.
What is the maximum clamping voltage of SMCJ8.0CA-M3/57T under surge conditions?
The SMCJ8.0CA-M3/57T has a maximum clamping voltage (VC) of 13.6 V when subjected to its rated peak pulse current of 110.3 A using the standard 10/1000 μs waveform. This value is guaranteed across temperature and lifetime, ensuring downstream components - such as 3.3 V or 5 V microcontrollers - remain within safe operating voltage limits during transient events.
How does the M3 suffix affect the environmental compliance of SMCJ8.0CA-M3/57T?
The M3 suffix indicates that the SMCJ8.0CA-M3/57T is halogen-free and RoHS-compliant, meeting JEDEC JS-011B material requirements and JESD 201 Class 2 whisker resistance. Unlike E3-suffix parts, M3 devices eliminate brominated flame retardants from molding compounds while retaining UL 94 V-0 flammability rating - satisfying strict environmental mandates in EU, China, and automotive supply chains.
Can SMCJ8.0CA-M3/57T be used in place of SMCJ8.0A-M3/57T?
No - SMCJ8.0CA-M3/57T is not a drop-in replacement for the unidirectional SMCJ8.0A-M3/57T. While both share identical VWM, VC, and PPPM ratings, the CA version lacks polarity marking and conducts in both directions, whereas the A version requires correct cathode orientation and blocks forward current. Substitution would compromise protection on DC-biased lines and invalidate layout assumptions.
SMCJ8.0CA-M3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 110.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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:
- DO-214AB (SMC)
SMCJ8.0CA-M3/57T FAQ
1.How can I place an order for SMCJ8.0CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ8.0CA-M3/57T 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 SMCJ8.0CA-M3/57T reliable?
The price and inventory of SMCJ8.0CA-M3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ8.0CA-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ8.0CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ8.0CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ8.0CA-M3/57T?
SMCJ8.0CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ8.0CA-M3/57T 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 SMCJ8.0CA-M3/57T?
For technical support, including SMCJ8.0CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ8.0CA-M3/57T requirements.
6.How does Aetrix verify that SMCJ8.0CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ8.0CA-M3/57T 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 SMCJ8.0CA-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ8.0CA-M3/57T?
All SMCJ8.0CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ8.0CA-M3/57T, 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 SMCJ8.0CA-M3/57T part is unused and in its original packaging.
Return procedure for SMCJ8.0CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ8.0CA-M3/57T Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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