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Vishay General Semiconductor - Diodes Division SMB10J8.0A-E3/5B
- Part No.:
- SMB10J8.0A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J8.0A-E3/5B.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,366
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Product details
Overview
SMB10J8.0A-E3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on DC power rails and signal lines. It features 8.0 V stand-off voltage (VWM), 13.6 V clamping voltage (VC) at 73.5 A peak pulse current (IPPM), 1000 W peak pulse power (10/1000 µs), and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMB10J8.0A-E3/5B datasheet, SMB10J8.0A-E3/5B pinout, SMB10J8.0A-E3/5B application, or SMB10J8.0A-E3/5B equivalent, key selection criteria include clamping performance under 10/1000 µs transients, unidirectional polarity for DC rail protection, RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, activating when reverse voltage exceeds its 8.89–9.83 V breakdown range (VBR at 1.0 mA). Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, ensuring reliable suppression of ESD, load dump, and inductive switching transients.
Thermally, it sustains operation from –55 °C to +150 °C with RθJA = 72 °C/W (on 5.0 mm × 5.0 mm pads) and handles non-repetitive 100 A forward surge (IFSM, 8.3 ms half-sine). The E3 suffix confirms RoHS compliance and commercial-grade qualification per JESD201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VC @ IPPM | 13.6 V - Clamped voltage during 10/1000 µs 73.5 A surge, limiting downstream IC stress |
| PPPM | 1000 W - Peak pulse power handling capability under standardized surge waveform |
| VBR min/max | 8.89 V / 9.83 V - Breakdown voltage range at 1.0 mA test current, defining turn-on threshold |
| IPPM | 73.5 A - Maximum non-repetitive peak pulse current supported at VC |
| RθJA | 72 °C/W - Thermal resistance junction-to-ambient on recommended 5.0 mm × 5.0 mm copper pads |
| TJ max | +150 °C - Maximum junction temperature, enabling under-hood automotive deployment |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V rail); color band identifies this end |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| Glass passivated junction | Ensures stable VBR and low leakage (<1.0 µA at VWM) over temperature and lifetime |
| Low profile SMB package | Enables high-density PCB layouts and compatibility with standard SMT pick-and-place equipment |
| MSL Level 1 (260 °C) | Supports lead-free reflow without moisture sensitivity concerns or baking requirements |
| 1000 W peak pulse rating | Provides robust protection against ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 surges |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply lines in automotive ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS clamping overvoltage spikes before they reach MCU power pins. Use Value: Limits rail voltage to ≤13.6 V during 73.5 A surges, preventing brownout or latch-up in ASIL-B systems. | Use Scenario: Safeguarding analog sensor inputs (e.g., pressure, temperature) in factory automation PLC modules. IC Role / Device Role / Timing Role: Fast-response clamp on low-voltage signal lines exposed to EMI and relay switching noise. Use Value: Sub-1 ns response and <1.0 µA leakage at 8.0 V preserve signal integrity and ADC accuracy. |
| Consumer USB Power Delivery | Telecom Base Station DC Feeds |
Use Scenario: Secondary overvoltage protection on 5 V/9 V USB PD input rails in portable docking stations. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing coupling transients from connected peripherals or hot-plug events. Use Value: 8.0 V VWM ensures no conduction during normal operation; 1000 W rating covers multi-event surge stress. | Use Scenario: Front-end surge suppression on 48 V DC distribution lines feeding RF amplifiers and backhaul radios. IC Role / Device Role / Timing Role: Primary shunt protector on telecom power entry, coordinated with upstream MOVs. Use Value: High IPPM (73.5 A) and low Rsurge ensure minimal let-through energy to sensitive RF front ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A-E3/52 | Same electrical specs and SMB package; differs only in reel size (750 pcs vs. 3200 pcs) and packaging code (52 vs. 5B) | No functional difference; identical performance and footprint | Select SMBJ8.0A-E3/52 for smaller batch prototyping or where 7" tape reels are preferred |
| 1.5SMC8.0A | Higher PPPM (1500 W), larger SMC (DO-214AB) package, 1.5x footprint area, RθJA = 30 °C/W | Better thermal dissipation but requires PCB layout change; not drop-in compatible | Choose 1.5SMC8.0A only when >1000 W surge margin is required and board space allows SMC footprint |
Compared with SMBJ8.0A-E3/52, SMB10J8.0A-E3/5B offers identical protection performance in the same SMB package but ships in higher-volume 13" reels; versus 1.5SMC8.0A, it trades thermal headroom for compactness-critical for space-constrained automotive modules.
Availability
SMB10J8.0A-E3/5B is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and consumer USB PD input staging requiring stable component supply and AEC-Q101 assurance.
Supply support for SMB10J8.0A-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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, automotive qualification, and high-power density design.
The SMB10J series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments-including under-hood automotive, industrial controls, and telecom infrastructure-where consistent clamping and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of SMB10J8.0A-E3/5B and how is it measured?
The SMB10J8.0A-E3/5B has a maximum clamping voltage (VC) of 13.6 V, measured at 73.5 A peak pulse current (IPPM) using the standardized 10/1000 µs double-exponential surge waveform. This value reflects the actual voltage seen by downstream circuitry during worst-case transient events and is guaranteed across temperature and production lots per Vishay Document 88422.
Is SMB10J8.0A-E3/5B suitable for automotive applications?
Yes, SMB10J8.0A-E3/5B is AEC-Q101 qualified and explicitly rated for automotive use. Its construction-including glass-passivated junction, MSL Level 1 moisture sensitivity, and operation up to +150 °C junction temperature-meets requirements for engine control, body electronics, and ADAS power domains. The "HE3" variant is fully automotive-grade; the E3 suffix denotes RoHS-compliant commercial grade with AEC-Q101 test data available.
What does the "-E3/5B" suffix mean in SMB10J8.0A-E3/5B?
The "E3" suffix indicates RoHS-compliant, commercial-grade construction with matte tin terminations meeting JESD201 Class 2 whisker resistance. The "/5B" denotes packaging: 13-inch diameter plastic tape and reel containing 3200 units. This contrasts with "/52", which specifies 7-inch reels of 750 units-same device, different logistics format.
How does SMB10J8.0A-E3/5B differ from bidirectional variants like SMB8J8.0CA?
SMB10J8.0A-E3/5B is unidirectional with cathode marking and optimized for DC rail protection, offering 1000 W PPPM and 73.5 A IPPM. In contrast, SMB8J8.0CA is bidirectional (no polarity marking), rated for 800 W and 58.8 A, and intended for AC-coupled or floating signal lines. Their VWM, VBR, and VC values match, but circuit topology and surge handling differ fundamentally.
What PCB pad layout is recommended for optimal thermal and surge performance of SMB10J8.0A-E3/5B?
Vishay specifies minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for SMB10J8.0A-E3/5B to achieve rated RθJA = 72 °C/W and full 1000 W surge capability. Pad dimensions must follow the DO-214AA outline: 2.18–2.159 mm anode/cathode width, 5.59 mm overall length, with 1.52 mm minimum terminal spacing. Thermal relief is discouraged for surge paths.
SMB10J8.0A-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 73.5A
- Power - Peak Pulse:
- 1000W (1kW)
- 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)
SMB10J8.0A-E3/5B FAQ
1.How can I place an order for SMB10J8.0A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J8.0A-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 SMB10J8.0A-E3/5B reliable?
The price and inventory of SMB10J8.0A-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 SMB10J8.0A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J8.0A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J8.0A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J8.0A-E3/5B?
SMB10J8.0A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J8.0A-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 SMB10J8.0A-E3/5B?
For technical support, including SMB10J8.0A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J8.0A-E3/5B requirements.
6.How does Aetrix verify that SMB10J8.0A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J8.0A-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 SMB10J8.0A-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J8.0A-E3/5B?
All SMB10J8.0A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J8.0A-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 SMB10J8.0A-E3/5B part is unused and in its original packaging.
Return procedure for SMB10J8.0A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J8.0A-E3/5B Tags
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