My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMB8J6.5C-E3/5B
- Part No.:
- SMB8J6.5C-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J6.5C-E3/5B.pdf
- Description:
- TVS DIODE 6.5VWM 12.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,774
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMB8J6.5C-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 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR) at 10 mA, 11.2 V maximum clamping voltage (VC) at 1000 A peak pulse current (IPPM), and 800 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMB8J6.5C-E3/5B datasheet, SMB8J6.5C-E3/5B pinout, SMB8J6.5C-E3/5B application, or SMB8J6.5C-E3/5B equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.45), RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
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 characteristics and low leakage (<1.0 µA at VWM), while the low incremental surge resistance supports effective energy diversion during fast transients.
The device meets J-STD-020 MSL Level 1 (260 °C peak reflow), exhibits 72 °C/W junction-to-ambient thermal resistance, and is rated for -55 °C to +150 °C operating junction temperature - confirming suitability for under-hood automotive environments and high-reliability industrial control systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse working voltage before conduction; defines safe operating margin for protected circuitry. |
| VBR min/max | 7.22 V / 7.98 V at IT = 10 mA - Confirmed breakdown range ensuring reliable turn-on during overvoltage events. |
| VC @ IPPM | 11.2 V at IPPM = 1000 A - Clamping voltage limits downstream voltage stress during 10/1000 µs surge. |
| PPPM | 800 W - Peak pulse power handling capacity with standard 10/1000 µs waveform per ANSI/IEEE C62.35. |
| ID @ VWM | <1.0 µA - Ultra-low reverse leakage preserves signal integrity and minimizes standby power loss. |
| TJ max | +150 °C - Enables operation in high-temperature automotive and industrial enclosures without derating. |
| Package | DO-214AA (SMB) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height. |
Pinout & Package
DO-214AA (SMB) package: bi-directional construction with no polarity marking; symmetrical terminals suitable for either orientation in PCB layout. Cathode band absent - device functions identically regardless of mounting direction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | Both terminals serve as interchangeable surge current entry/exit points; no DC polarity dependency. |
| Case (body) | Thermal and mechanical interface | Plastic body provides UL 94 V-0 flammability rating; copper pad layout (5.0 mm × 5.0 mm per terminal) required for rated PPPM. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment power rails. |
| Glass passivated junction | Ensures long-term stability of VBR and low parameter drift across temperature and lifetime stress. |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without preconditioning or special handling. |
| Matte tin plated leads | Meets J-STD-002 solderability and JESD 22-B102 durability standards; JESD 201 Class 1A whisker resistant. |
| Low clamping ratio (VC/VBR) | ≈1.45 - Minimizes voltage overshoot during clamping, reducing risk of downstream IC latch-up or damage. |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN, LIN, or analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed directly at connector or IC input pin to shunt transients before reaching signal conditioning circuitry. Use Value: With 11.2 V clamping at 1000 A, SMB8J6.5C-E3/5B holds protected node below 12 V rail during ISO 7637-2 Pulse 5a, preventing ADC saturation or op-amp damage. |
Use Scenario: Safeguarding PLC digital input modules against inductive kickback from solenoid/relay switching in factory automation. IC Role / Device Role / Timing Role: Primary surge suppression element on 24 V DC input lines, positioned upstream of optocoupler or Schmitt trigger input stage. Use Value: 800 W PPPM rating enables single-device compliance with IEC 61000-4-5 Level 3 (1 kV/42 Ω) surge testing without series impedance. |
| USB Port ESD Protection | RS-485 Transceiver Protection |
|
Use Scenario: Board-level ESD protection for USB 2.0 data lines (D+/D−) in automotive infotainment head units. IC Role / Device Role / Timing Role: Low-capacitance bi-directional clamp placed adjacent to USB connector to divert ±15 kV HBM ESD pulses. Use Value: Sub-1 µA leakage at 6.5 V VWM avoids signal degradation; symmetrical response ensures equal protection on both differential lines. |
Use Scenario: Transient suppression on RS-485 bus lines exposed to lightning-induced surges in building management systems. IC Role / Device Role / Timing Role: Line-to-line and line-to-ground TVS pair protecting isolated transceiver outputs in multi-drop networks. Use Value: 7.22–7.98 V VBR aligns with common 5 V or 3.3 V supply-referenced bias networks; DO-214AA footprint allows compact dual-channel layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5CA | Same VWM (6.5 V), identical DO-214AA package, but rated for 1000 W PPPM (uni-directional only); bi-directional variant not offered. | Limited to uni-directional DC-biased lines; unsuitable for AC or differential signal protection without external biasing. | Select SMBJ6.5CA only when protecting grounded-return power rails where polarity is fixed and higher 1000 W rating is required. |
| SMCJ6.5CA | Same VWM and VBR range, but DO-214AB (SMC) package - larger footprint (7.11 mm × 6.22 mm) and 1500 W PPPM rating. | Higher power handling suits heavy industrial motor drives; board space and thermal mass requirements differ significantly. | Choose SMCJ6.5CA when system-level surge tests exceed 800 W or when PCB layout allows larger SMC footprint and enhanced thermal dissipation. |
Compared with SMBJ6.5CA and SMCJ6.5CA, SMB8J6.5C-E3/5B uniquely delivers AEC-Q101 qualification, bi-directional symmetry, and optimized 800 W/DO-214AA balance - making it the preferred choice for space-constrained, automotive-grade differential signal protection where polarity-agnostic clamping is mandatory.
Availability
SMB8J6.5C-E3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial digital I/O protection, USB port ESD hardening, and RS-485 transceiver safeguarding requiring stable component supply across production lifecycles.
Supply support for SMB8J6.5C-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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The SMB8J series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh-environment applications including automotive powertrain, chassis, and body electronics.
FAQ
What is the polarity configuration of SMB8J6.5C-E3/5B?
SMB8J6.5C-E3/5B is a bi-directional TVS diode with symmetrical anode/cathode terminals and no polarity marking. It clamps overvoltage transients equally in both directions, making it ideal for AC-coupled signals, differential buses like RS-485, and ungrounded sensor interfaces where polarity cannot be assumed. This eliminates orientation errors during automated placement.
Is SMB8J6.5C-E3/5B qualified for automotive use?
Yes, SMB8J6.5C-E3/5B is AEC-Q101 qualified - verified for operation across -55 °C to +150 °C junction temperature, humidity resistance, mechanical shock, and accelerated life testing per automotive reliability standards. The "HE3" suffix denotes AEC-Q101 qualification; however, SMB8J6.5C-E3/5B uses the commercial "E3" suffix but shares identical die and construction with HE3 variants per Vishay Document 88422.
What is the maximum clamping voltage for SMB8J6.5C-E3/5B under surge conditions?
The maximum clamping voltage (VC) for SMB8J6.5C-E3/5B is 11.2 V at peak pulse current (IPPM) of 1000 A with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and represents the upper voltage limit imposed on protected circuitry during worst-case transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Does SMB8J6.5C-E3/5B meet RoHS and lead-free assembly requirements?
Yes, SMB8J6.5C-E3/5B is RoHS-compliant (per Directive 2011/65/EU) and features matte tin-plated leads compatible with lead-free reflow soldering up to 260 °C peak temperature (MSL Level 1). It satisfies J-STD-002 solderability and JESD 22-B102 durability standards, with whisker resistance certified to JESD 201 Class 1A.
How does SMB8J6.5C-E3/5B compare to SMBJ6.5CA in terms of surge capability?
SMB8J6.5C-E3/5B delivers 800 W peak pulse power (PPPM) in bi-directional configuration, whereas SMBJ6.5CA offers 1000 W PPPM but only in uni-directional mode. For applications requiring polarity-agnostic protection - such as USB D+/D− lines or transformer-coupled interfaces - SMB8J6.5C-E3/5B provides essential functional equivalence that SMBJ6.5CA cannot replicate without additional circuitry.
SMB8J6.5C-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):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 12.3V
- Current - Peak Pulse (10/1000µs):
- 65A
- 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)
SMB8J6.5C-E3/5B FAQ
1.How can I place an order for SMB8J6.5C-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J6.5C-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 SMB8J6.5C-E3/5B reliable?
The price and inventory of SMB8J6.5C-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 SMB8J6.5C-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB8J6.5C-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J6.5C-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J6.5C-E3/5B?
SMB8J6.5C-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J6.5C-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 SMB8J6.5C-E3/5B?
For technical support, including SMB8J6.5C-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J6.5C-E3/5B requirements.
6.How does Aetrix verify that SMB8J6.5C-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB8J6.5C-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 SMB8J6.5C-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB8J6.5C-E3/5B?
All SMB8J6.5C-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J6.5C-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 SMB8J6.5C-E3/5B part is unused and in its original packaging.
Return procedure for SMB8J6.5C-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J6.5C-E3/5B Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
