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Vishay General Semiconductor - Diodes Division SMB10J6.5AHE3/5B
- Part No.:
- SMB10J6.5AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J6.5AHE3/5B.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,242
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Product details
Overview
SMB10J6.5AHE3/5B 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 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR) at 10 mA, 11.2 V clamping voltage (VC) at 89.3 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - used in automotive power supply input stages and industrial sensor interface protection.
For engineers reviewing the SMB10J6.5AHE3/5B datasheet, SMB10J6.5AHE3/5B pinout, SMB10J6.5AHE3/5B application, or SMB10J6.5AHE3/5B equivalent, key selection criteria include clamping performance under 100 A surge, AEC-Q101 qualification for automotive use, RoHS compliance with matte tin plating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its design targets fast transient suppression per IEC 61000-4-5 (surge) and ISO 7637-2 (automotive load dump), with thermal resistance RθJA = 72 °C/W enabling stable operation up to TJ = 150 °C.
The SMB10J6.5AHE3/5B variant is AEC-Q101 qualified and marked with HE3 suffix, indicating RoHS-compliant construction and automotive-grade reliability. It uses a single cathode-band polarity marking and is rated for MSL level 1 (260 °C reflow peak), supporting lead-free assembly without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse operating voltage before clamping begins; sets minimum system overvoltage threshold |
| VBR (min/max) | 7.22 V / 7.98 V at IT = 10 mA - defines guaranteed breakdown range for design margining against tolerance stack-up |
| VC @ IPPM | 11.2 V at 89.3 A - clamping voltage during 10/1000 µs surge; determines protected circuit's maximum transient exposure |
| PPPM | 1000 W - peak pulse power handling capability; validates robustness against IEC 61000-4-5 Level 4 surges |
| IFSM | 100 A - non-repetitive forward surge rating; supports protection of MOSFET gate drivers during inductive turn-off |
| TJ max | +150 °C - maximum junction temperature; enables deployment in under-hood automotive environments |
| RθJA | 72 °C/W - thermal resistance junction-to-ambient on standard 0.2" × 0.2" copper pads; informs board-level thermal layout requirements |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by single color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to lower-potential side (e.g., GND or return rail); conducts during reverse-transient clamping |
| Cathode | Clamping reference node | Connected to protected line (e.g., 12 V supply); defines polarity and clamping direction for unidirectional operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics requiring long-term reliability under thermal cycling and vibration |
| Glass-passivated junction | Ensures stable leakage current (<1 μA at VWM) and consistent VBR across temperature and lifetime, critical for low-power sensor interfaces |
| MSL level 1 rating | Enables single-reflow assembly at 260 °C peak without moisture-induced damage, eliminating bake-out steps in high-volume SMT lines |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients (e.g., ISO 7637-2 Pulse 1/2a), improving protection margin for downstream ICs |
| 1000 W PPPM (10/1000 µs) | Supports protection of 12 V systems against 100 A surge events - sufficient for alternator load dump and inductive switching in industrial PLC I/O modules |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: 12 V battery feed to ADAS camera ECU exposed to ISO 7637-2 load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and ground to clamp surges before they reach LDO regulators and image sensors. Use Value: Clamps to 11.2 V at 89.3 A, limiting stress on 16 V-rated input capacitors and preventing regulator latch-up during 100 V/50 ms load dump events. | Use Scenario: Analog output line (0–5 V) from pressure sensor in factory automation system subject to ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt transients before reaching op-amp buffer and ADC input. Use Value: Sub-ns response and 11.2 V clamping protect 5.5 V absolute-maximum-rated ADC inputs while maintaining signal integrity below 1 MHz bandwidth. |
| Telecom DC Power Rail Clamp | OBD-II Interface Transient Suppression |
Use Scenario: -48 V telecom power distribution board where hot-swap events generate 100 V/10 ms surges. IC Role / Device Role / Timing Role: Unidirectional TVS installed on each -48 V feed to backplane slots to limit rail collapse and prevent upstream rectifier failure. Use Value: 1000 W PPPM rating sustains multiple surge events without degradation; 72 °C/W RθJA allows thermal management with minimal copper area. | Use Scenario: OBD-II diagnostic port on vehicle ECU subjected to ESD (±15 kV contact) and ISO 10605 pulses during service connection. IC Role / Device Role / Timing Role: SMB10J6.5AHE3/5B placed on K-line (ISO 9141-2) and CAN-H/CAN-L lines to clamp common-mode transients. Use Value: AEC-Q101 qualification ensures compliance with automotive EMC standards; 6.5 V VWM avoids interference with 5 V logic signaling on diagnostic lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5AHE3/5B | Same VWM/VBR/VC specs but rated for 600 W PPPM (vs. 1000 W); identical SMB package and AEC-Q101 qualification | Lower energy handling limits use in high-surge automotive front-end rails; suitable for secondary-side or low-energy signal lines | Select SMBJ6.5AHE3/5B only when system-level surge testing confirms <600 W requirement and cost optimization is prioritized |
| 1.5SMC6.5AHE3/A | Higher-power SMC package (1500 W PPPM), same 6.5 V VWM, but larger footprint (7.11 mm × 6.22 mm vs. SMB's 4.57 mm × 3.94 mm) | Required where PCB space permits and higher surge immunity (e.g., alternator output) is mandated by OEM spec | Choose 1.5SMC6.5AHE3/A when 1000 W is insufficient and layout allows SMC footprint; not drop-in due to size and pad geometry |
Compared with SMBJ6.5AHE3/5B and 1.5SMC6.5AHE3/A, the SMB10J6.5AHE3/5B uniquely balances 1000 W surge capacity with compact SMB packaging and AEC-Q101 qualification - making it optimal for space-constrained, high-reliability automotive and industrial power rail protection where both energy rating and footprint matter.
Availability
SMB10J6.5AHE3/5B is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and OBD-II interface designs requiring stable component supply with full traceability and AEC-Q101 compliance.
Supply support for SMB10J6.5AHE3/5B 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific performance.
The SMB10J series belongs to Vishay's TRANSZORB® high-power TVS family, engineered specifically for automotive and industrial systems demanding robust, AEC-Q101-qualified transient protection in compact surface-mount packages.
FAQ
What is the clamping voltage of SMB10J6.5AHE3/5B at its rated peak pulse current?
The SMB10J6.5AHE3/5B has a maximum clamping voltage (VC) of 11.2 V at 89.3 A peak pulse current (IPPM), measured with a 10/1000 µs waveform. This value is specified in the Vishay datasheet (Document Number: 88422, page 2) and defines the upper voltage limit imposed on protected circuits during surge events. The SMB10J6.5AHE3/5B maintains this clamping performance across its operational temperature range and is validated for AEC-Q101 automotive reliability.
Is SMB10J6.5AHE3/5B suitable for automotive applications?
Yes, SMB10J6.5AHE3/5B is explicitly AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's 88422 datasheet. It meets automotive requirements for thermal cycling, humidity resistance, and mechanical shock, and is rated for operation from –55 °C to +150 °C junction temperature. The SMB10J6.5AHE3/5B is commonly deployed in engine control units, body control modules, and ADAS power inputs where certified transient protection is mandatory.
What does the "HE3/5B" suffix indicate in SMB10J6.5AHE3/5B?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification, while "5B" specifies packaging in 13-inch diameter plastic tape and reel with a base quantity of 3200 units. This ordering code ensures traceable, automotive-grade material with standardized SMT-compatible delivery - distinct from commercial-grade E3 or halogen-free HM3 variants. The SMB10J6.5AHE3/5B suffix directly maps to Vishay's preferred part numbering and delivery mode per datasheet page 3.
How does SMB10J6.5AHE3/5B differ from bidirectional TVS diodes like SMB8J6.5CA?
The SMB10J6.5AHE3/5B is unidirectional and intended for DC rail protection with defined polarity (cathode-banded), offering 1000 W PPPM and 100 A IFSM. In contrast, SMB8J6.5CA is bidirectional, rated for 800 W PPPM and 71.4 A IPPM, and lacks polarity marking. The SMB10J6.5AHE3/5B provides higher surge capacity and forward surge rating - critical for protecting MOSFETs and regulators in asymmetric power paths where reverse conduction must be blocked.
What PCB layout guidance applies to SMB10J6.5AHE3/5B for optimal thermal and electrical performance?
Vishay specifies mounting SMB10J6.5AHE3/5B on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 1000 W PPPM and 72 °C/W RθJA. Traces should be short and wide to minimize inductance, and ground planes must be solid beneath the device. The SMB10J6.5AHE3/5B datasheet (page 5) provides exact pad dimensions and recommends avoiding thermal reliefs on pads to ensure efficient heat dissipation during surge events.
SMB10J6.5AHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 89.3A
- Power - Peak Pulse:
- 1000W (1kW)
- 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)
SMB10J6.5AHE3/5B FAQ
1.How can I place an order for SMB10J6.5AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J6.5AHE3/5B 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 SMB10J6.5AHE3/5B reliable?
The price and inventory of SMB10J6.5AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J6.5AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J6.5AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J6.5AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J6.5AHE3/5B?
SMB10J6.5AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J6.5AHE3/5B 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 SMB10J6.5AHE3/5B?
For technical support, including SMB10J6.5AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J6.5AHE3/5B requirements.
6.How does Aetrix verify that SMB10J6.5AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J6.5AHE3/5B 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 SMB10J6.5AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J6.5AHE3/5B?
All SMB10J6.5AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J6.5AHE3/5B, 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 SMB10J6.5AHE3/5B part is unused and in its original packaging.
Return procedure for SMB10J6.5AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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