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Vishay General Semiconductor - Diodes Division SMB8J8.0C-E3/5B
- Part No.:
- SMB8J8.0C-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J8.0C-E3/5B.pdf
- Description:
- TVS DIODE 8VWM 15VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,700
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Product details
Overview
SMB8J8.0C-E3/5B from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for robust overvoltage protection on signal and power lines. It features 8.0 V stand-off voltage (VWM), 13.6 V clamping voltage (VC) at 100 A peak pulse current (IPPM), and 800 W peak pulse power (PPPM) with 10/1000 μs waveform. Used to safeguard MOSFETs, ICs, and sensor interfaces against ESD and inductive switching transients in automotive and industrial control systems.
For engineers reviewing the SMB8J8.0C-E3/5B datasheet, SMB8J8.0C-E3/5B pinout, SMB8J8.0C-E3/5B application, or SMB8J8.0C-E3/5B equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, 1.0 μA max reverse leakage at VWM, thermal resistance (RθJA = 72 °C/W), and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This bi-directional TVS diode operates symmetrically across both polarities, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance under repetitive transient stress.
Designed per ANSI/IEEE C62.35 standards, SMB8J8.0C-E3/5B delivers sub-nanosecond response time and clamps transients within 13.6 V while sustaining 100 A peak pulse current - validated under JEDEC test conditions with 0.2" × 0.2" copper pads per terminal and derated above 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 5 V–8 V logic/sensor rails. |
| VBR min/max | 8.89 V / 9.83 V at 1.0 mA - verified breakdown threshold range ensuring consistent turn-on across production lots. |
| VC @ IPPM | 13.6 V at 100 A - clamping voltage under full-rated 10/1000 μs surge; limits downstream device stress during worst-case transients. |
| PPPM | 800 W - peak pulse power handling capacity; supports high-energy surges common in automotive load-dump or inductive kick scenarios. |
| ID @ VWM | 1.0 μA - ultra-low reverse leakage at stand-off voltage; preserves signal integrity and minimizes standby power loss. |
| TJ max | 150 °C - maximum junction temperature rating; enables reliable operation in under-hood or enclosed industrial environments. |
| RθJA | 72 °C/W - thermal resistance from junction to ambient; informs heatsinking requirements when operating near power limits. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, bi-directional configuration with no polarity marking - symmetrical terminals suitable for AC or differential line protection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; bidirectional clamping occurs regardless of voltage polarity - no cathode band or marking required. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per JESD22 standards. |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to moisture-induced parameter drift in harsh environments. |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without preconditioning; supports high-yield automated assembly. |
| UL 94 V-0 molding compound | Flame-retardant encapsulation meets safety requirements for industrial and transportation end equipment. |
| Matte tin-plated leads | RoHS-compliant terminations meeting J-STD-002 solderability and JESD22-B102 intermetallic durability specs. |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Line Protection |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) connected to microcontrollers in engine control units exposed to load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bi-directional TVS clamping element placed directly at connector entry point to shunt transients before reaching signal conditioning circuitry. Use Value: Limits voltage excursion to ≤13.6 V during 100 A surges, preserving ADC input integrity and preventing latch-up in 3.3 V/5 V MCUs. |
Use Scenario: Safeguarding CANH/CANL differential pair against ESD events and bus faults in factory automation nodes. IC Role / Device Role / Timing Role: Symmetrical transient suppressor mounted across differential lines to clamp ±13.6 V spikes without disrupting DC bias or signal swing. Use Value: Maintains CAN signal fidelity by limiting clamping voltage below ISO 11898-2 receiver damage thresholds while supporting >10 kV contact ESD immunity. |
| Consumer USB Port ESD Protection | Power Supply Input Surge Suppression |
Use Scenario: Shielding USB 2.0 D+/D− lines in portable devices from human-body-model (HBM) ESD events during plug insertion. IC Role / Device Role / Timing Role: Low-capacitance bi-directional TVS placed inline with data lines to absorb fast-rising transients without distorting 480 Mbps signaling. Use Value: Delivers <1.0 μA leakage at 8.0 V stand-off, minimizing signal attenuation and ensuring USB eye diagram compliance per USB-IF spec. |
Use Scenario: Secondary-level surge suppression on 12 V DC input rails of embedded controllers subjected to IEC 61000-4-5 line-to-ground surges. IC Role / Device Role / Timing Role: High-power TVS positioned after primary fuse and upstream of DC-DC converter to absorb residual energy not handled by MOVs. Use Value: Handles 800 W peak pulse power with 13.6 V clamping, reducing downstream voltage overshoot and preventing regulator latch-off during 10/1000 μs surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0CA | Same DO-214AA package and 8.0 V VWM, but rated for 1000 W PPPM (uni-directional only); SMB8J8.0C-E3/5B is bi-directional with 800 W rating. | Not suitable for AC or differential line protection where polarity reversal occurs; requires external polarity management. | Select SMBJ8.0CA only if unidirectional clamping suffices and higher pulse power is needed - e.g., DC power rail protection with defined ground reference. |
| SMCJ8.0CA | Larger DO-214AB (SMC) package; same 8.0 V VWM and bi-directional function, but rated for 1500 W PPPM and lower RθJA (35 °C/W). | Better thermal performance and surge margin, but occupies ~2.5× more board area and may not fit space-constrained layouts. | Choose SMCJ8.0CA when system-level surge testing exceeds 800 W requirements or ambient temperatures exceed 85 °C with sustained power dissipation. |
Compared with SMBJ8.0CA and SMCJ8.0CA, SMB8J8.0C-E3/5B offers optimal balance of bi-directional capability, compact SMB footprint, AEC-Q101 qualification, and sufficient 800 W surge rating for most automotive sensor and industrial communication interfaces - without requiring layout redesign or sacrificing reliability.
Availability
SMB8J8.0C-E3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN networks, consumer USB peripherals, and DC power input stages requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMB8J8.0C-E3/5B 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The SMB8J series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-power-density, AEC-Q101-compliant transient suppression in space-constrained automotive and industrial electronics.
FAQ
What is the clamping voltage of SMB8J8.0C-E3/5B at its rated peak pulse current?
The SMB8J8.0C-E3/5B has a maximum clamping voltage (VC) of 13.6 V when subjected to its rated 100 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured with the device mounted on 0.2" × 0.2" copper pads per terminal and is guaranteed across the full operating temperature range per the Vishay datasheet revision 12-Nov-12.
Is SMB8J8.0C-E3/5B suitable for automotive applications?
Yes, SMB8J8.0C-E3/5B is AEC-Q101 qualified and explicitly rated for automotive use. Its construction includes glass-passivated junctions, MSL Level 1 moisture sensitivity, matte tin-plated leads compliant with JESD22-B102, and validation across temperature cycling, mechanical shock, and humidity bias tests - making it appropriate for engine control units, body electronics, and ADAS sensor interfaces.
How does the bi-directional nature of SMB8J8.0C-E3/5B affect its PCB layout?
The SMB8J8.0C-E3/5B has no polarity marking and functions identically in both directions, so PCB layout requires no orientation constraint. It can be placed across differential pairs (e.g., CANH/CANL) or AC-coupled signal lines without regard to anode/cathode alignment - simplifying routing and eliminating risk of incorrect placement during automated assembly.
What is the reverse leakage current specification for SMB8J8.0C-E3/5B at its stand-off voltage?
At the 8.0 V stand-off voltage (VWM), SMB8J8.0C-E3/5B exhibits a maximum reverse leakage current (ID) of 1.0 μA at 25 °C ambient temperature. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes quiescent power draw in battery-powered systems.
Does SMB8J8.0C-E3/5B meet RoHS and halogen-free requirements?
Yes, SMB8J8.0C-E3/5B carries the "E3" suffix indicating RoHS-compliance per Directive 2011/65/EU, and Vishay certifies all E3-suffix parts as meeting JEDEC JS709A halogen-free standards. The molding compound is UL 94 V-0 rated, and terminations are matte tin-plated per J-STD-002 solderability requirements.
SMB8J8.0C-E3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 53.3A
- Power - Peak Pulse:
- 800W
- 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-214AA (SMB)
SMB8J8.0C-E3/5B FAQ
1.How can I place an order for SMB8J8.0C-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J8.0C-E3/5B 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 SMB8J8.0C-E3/5B reliable?
The price and inventory of SMB8J8.0C-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB8J8.0C-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB8J8.0C-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J8.0C-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J8.0C-E3/5B?
SMB8J8.0C-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J8.0C-E3/5B 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 SMB8J8.0C-E3/5B?
For technical support, including SMB8J8.0C-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J8.0C-E3/5B requirements.
6.How does Aetrix verify that SMB8J8.0C-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB8J8.0C-E3/5B 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 SMB8J8.0C-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB8J8.0C-E3/5B?
All SMB8J8.0C-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J8.0C-E3/5B, 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 SMB8J8.0C-E3/5B part is unused and in its original packaging.
Return procedure for SMB8J8.0C-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J8.0C-E3/5B Tags
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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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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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