My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMB8J26CHE3/52
- Part No.:
- SMB8J26CHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J26CHE3/52.pdf
- Description:
- TVS DIODE 26VWM 46.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,424
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMB8J26CHE3/52 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for high-energy surge protection on signal and power lines. It features 26 V stand-off voltage (VWM), 42.1 V maximum clamping voltage at 19.0 A peak pulse current (10/1000 µs), and 800 W peak pulse power dissipation - optimized for automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMB8J26CHE3/52 datasheet, SMB8J26CHE3/52 pinout, SMB8J26CHE3/52 application, or SMB8J26CHE3/52 equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, RoHS-compliant HE3 whisker-tested terminations, and thermal resistance (RθJA = 72 °C/W) under standard PCB pad layout.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, with breakdown voltage VBR = 28.9–31.9 V at 1 mA test current and clamps transients to ≤42.1 V at 19.0 A. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), meeting ANSI/IEEE C62.35 standards for surge immunity.
Rated for -55 °C to +150 °C operating junction temperature, it delivers 800 W peak pulse power (10/1000 µs waveform) on 0.2" × 0.2" copper pads and supports automated SMT placement per J-STD-002 solderability requirements. The HE3 suffix confirms AEC-Q101 qualification and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - Maximum continuous reverse working voltage before clamping initiates |
| VBR (min/max) | 28.9 V / 31.9 V at 1 mA - Ensures reliable breakdown onset within tight tolerance band |
| VC @ IPPM | 42.1 V at 19.0 A - Clamping voltage limits downstream IC stress during 10/1000 µs surges |
| PPPM | 800 W - Peak pulse power handling capacity for lightning and ESD transients |
| IPPM | 19.0 A - Surge current level at which VC is guaranteed, critical for I/O line protection sizing |
| RθJA | 72 °C/W - Thermal resistance defines safe power derating above 25 °C ambient |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
DO-214AA (SMB) surface-mount package: molded epoxy case meeting UL 94 V-0, matte tin-plated leads, cathode band absent (bi-directional symmetry). Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), 0.220" × 0.155" footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge path | No polarity marking required; terminals interchangeable for AC or bidirectional DC line protection |
| Case (body) | Thermal conduction path | Plastic body provides electrical isolation while enabling heat transfer via PCB copper pads |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics including engine control, ADAS sensors, and infotainment I/O |
| Glass passivated junction | Stable VBR tolerance and low leakage (<1.0 µA) over lifetime and temperature extremes |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
| JESD 201 Class 2 whisker resistance | HE3 suffix ensures long-term reliability in high-humidity, high-vibration environments |
| Low incremental surge resistance | Enables tighter clamping (VC − VWM = 16.1 V) versus competing 26 V TVS devices |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bi-directional clamping element placed directly at connector entry point to shunt surge energy before reaching ASIC or MCU pins. Use Value: Limits transient voltage to ≤42.1 V during 19.0 A surges, preserving signal integrity and preventing latch-up in AEC-Q100 qualified receivers. |
Use Scenario: Safeguarding PLC digital input modules against induced surges from relay coil switching and motor drive noise. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input lines, coordinated with series impedance to meet IEC 61000-4-5 Level 3 (2 kV/1 kA). Use Value: Delivers 800 W pulse power handling with <1 ns response, reducing need for secondary protection stages and board space. |
| Telecom Line Interface | Consumer Appliance Control Board |
Use Scenario: Shielding Ethernet PHYs and RS-485 transceivers from ESD (IEC 61000-4-2) and lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-line TVS on differential pairs, leveraging symmetrical bi-directional behavior to maintain common-mode rejection. Use Value: Clamps ±42.1 V transients without polarity bias, eliminating need for dual unidirectional devices and simplifying layout. |
Use Scenario: Securing microcontroller GPIOs and display driver lines in washing machines and HVAC controllers exposed to relay and solenoid switching noise. IC Role / Device Role / Timing Role: Localized protection at board-level connectors and internal signal nodes, rated for repeated surge events per JEDEC JESD22-A114. Use Value: AEC-Q101 qualification ensures robustness across thermal cycles and humidity exposure typical of white goods environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ26CA-E3/52 | Same DO-214AA package and 26 V rating but commercial-grade (E3), not AEC-Q101 qualified; RθJA = 72 °C/W identical | Lacks automotive qualification; suitable for industrial/commercial systems without automotive reliability mandates | Select when AEC-Q101 is not required and cost optimization is prioritized |
| SMCJ26CAHE3_A/H | Higher 1500 W PPPM, larger DO-214AB (SMC) package (7.11 mm × 6.22 mm), same VWM/VC specs | Used where higher surge margin is needed (e.g., mains-connected equipment); requires larger PCB area | Choose for applications demanding >800 W surge handling with identical clamping performance |
Compared with SMB8J26CHE3/52, SMBJ26CA-E3/52 offers identical electrical protection but lacks automotive qualification, while SMCJ26CAHE3_A/H provides 87.5% higher pulse power in a physically larger package - enabling trade-offs between board space, reliability tier, and surge margin.
Availability
SMB8J26CHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer appliance control boards requiring stable component supply and AEC-Q101 compliance.
Supply support for SMB8J26CHE3/52 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 designs and manufactures discrete semiconductors including diodes, MOSFETs, and TVS devices, with emphasis on high-reliability, high-power-density solutions for automotive and industrial markets.
The SMB8JxxCA family targets compact, AEC-Q101-qualified transient suppression for space-constrained automotive and industrial electronics - balancing low-profile packaging, precise clamping, and extended thermal capability.
FAQ
What is the clamping voltage of SMB8J26CHE3/52 at its rated peak pulse current?
The SMB8J26CHE3/52 clamps to a maximum of 42.1 V at its specified peak pulse current of 19.0 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and verified at TA = 25 °C on standard 0.2" × 0.2" copper pads. The SMB8J26CHE3/52 maintains this clamping performance across its full operating temperature range (-55 °C to +150 °C), with derating applied above 25 °C per Figure 2 in the Vishay datasheet 88422.
Is SMB8J26CHE3/52 suitable for automotive applications?
Yes, SMB8J26CHE3/52 is AEC-Q101 qualified and explicitly intended for automotive use, including sensor interfaces, body control modules, and infotainment I/O protection. The HE3 suffix confirms compliance with JESD 201 Class 2 whisker testing and MSL Level 1 reflow compatibility. The SMB8J26CHE3/52 meets the thermal and surge robustness requirements defined in ISO 7637-2 and IEC 61000-4-5 for vehicle subsystems, validated through accelerated life testing per AEC-Q101 stress conditions.
How does SMB8J26CHE3/52 differ from unidirectional TVS diodes like SMB10J26A?
SMB8J26CHE3/52 is bi-directional with symmetrical clamping for AC or bidirectional DC lines, whereas SMB10J26A is unidirectional and requires correct polarity orientation. SMB8J26CHE3/52 has lower peak pulse power (800 W vs. 1000 W) and lower peak pulse current (19.0 A vs. 23.8 A) due to its bi-directional architecture. Both share the same DO-214AA package and 26 V VWM, but SMB8J26CHE3/52 eliminates polarity marking and enables simplified layout on differential or floating signals - a key advantage in SMB8J26CHE3/52 applications such as RS-485 or CAN bus protection.
What is the meaning of the 'HE3' and '/52' in SMB8J26CHE3/52?
The 'HE3' suffix indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; 'E3' alone denotes commercial-grade RoHS compliance without automotive qualification. The '/52' denotes packaging in 7" diameter plastic tape and reel, with a base quantity of 750 units per reel. This configuration ensures compatibility with high-speed SMT pick-and-place equipment and supports traceable lot control - essential for SMB8J26CHE3/52 deployment in automotive and industrial production lines.
Does SMB8J26CHE3/52 require heatsinking for standard operation?
No additional heatsink is required for SMB8J26CHE3/52 under normal transient conditions, as its thermal design relies on PCB copper pads (0.2" × 0.2" per terminal) to dissipate energy. With RθJA = 72 °C/W and maximum junction temperature of 150 °C, the device safely handles repetitive surges when mounted per Vishay's recommended pad layout. Continuous power dissipation is limited to 100 W (PD), but SMB8J26CHE3/52 is intended for transient, not steady-state, operation - making external heatsinking unnecessary in compliant layouts.
SMB8J26CHE3/52 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):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 46.6V
- Current - Peak Pulse (10/1000µs):
- 17.2A
- Power - Peak Pulse:
- 800W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB8J26CHE3/52 FAQ
1.How can I place an order for SMB8J26CHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J26CHE3/52 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 SMB8J26CHE3/52 reliable?
The price and inventory of SMB8J26CHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB8J26CHE3/52 is usually 5 days.
3.What payment methods are accepted for SMB8J26CHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J26CHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J26CHE3/52?
SMB8J26CHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J26CHE3/52 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 SMB8J26CHE3/52?
For technical support, including SMB8J26CHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J26CHE3/52 requirements.
6.How does Aetrix verify that SMB8J26CHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMB8J26CHE3/52 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 SMB8J26CHE3/52 meets industry standards.
7.What is the process for return or replacement of SMB8J26CHE3/52?
All SMB8J26CHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J26CHE3/52, 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 SMB8J26CHE3/52 part is unused and in its original packaging.
Return procedure for SMB8J26CHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J26CHE3/52 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 …
