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Vishay General Semiconductor - Diodes Division SMB10J11A-E3/5B
- Part No.:
- SMB10J11A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J11A-E3/5B.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,047
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Product details
Overview
SMB10J11A-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 a 11 V stand-off voltage (VWM), 12.2–13.5 V breakdown voltage (VBR) at 1 mA, 18.2 V maximum clamping voltage (VC) at 54.9 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMB10J11A-E3/5B datasheet, SMB10J11A-E3/5B pinout, SMB10J11A-E3/5B application, or SMB10J11A-E3/5B equivalent, key selection criteria include clamping performance under 54.9 A surge, AEC-Q101 qualification for automotive use, RoHS-compliant E3 termination, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector, activating when reverse voltage exceeds its 12.2–13.5 V breakdown threshold to divert transient energy away from downstream ICs. Its glass-passivated junction ensures stable leakage (<5 µA at 11 V) and fast response time (<1 ns), while low incremental surge resistance enables effective suppression of inductive switching spikes and ESD events.
The device is rated for -55 °C to +150 °C operating junction temperature, with thermal resistance of 72 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting reliable operation in thermally constrained automotive and industrial PCB layouts. It meets MSL level 1 per J-STD-020 and passes JESD 201 class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 12.2 V / 13.5 V at 1 mA - precise breakdown threshold defining turn-on consistency |
| VC @ IPPM | 18.2 V at 54.9 A - clamping voltage limiting downstream voltage stress during 1000 W surge |
| PPPM | 1000 W (10/1000 µs) - peak surge power handling capacity for automotive load-dump immunity |
| ID @ VWM | ≤5 µA - ultra-low leakage preserving signal integrity and battery life in always-on circuits |
| TJ max | +150 °C - enables under-hood deployment without derating in engine control modules |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by color band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path terminal | Connected to ground or lower-potential rail in unidirectional clamp configuration |
| Cathode | Reverse-biased voltage sensing terminal | Connected to protected line; conducts when transient exceeds VBR, shunting surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term parameter stability across temperature and lifetime |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and body electronics with zero defects in accelerated stress tests |
| MSL Level 1 rating | Enables standard reflow without pre-baking, reducing manufacturing complexity and cost |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage exposure to protected ICs compared to higher-ratio TVS devices |
| RoHS-compliant E3 termination | Meets global environmental compliance requirements with matte tin plating compatible with lead-free assembly |
Applications
| Automotive Engine Control Unit (ECU) | Industrial CAN Transceiver Protection |
|---|---|
Use Scenario: Protecting microcontroller I/O and power supply pins from load dump and alternator ripple transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VCC and GND, clamping surges before they reach MCU power domains. Use Value: Limits voltage excursion to ≤18.2 V during 1000 W transients, preventing latch-up or permanent damage to 3.3 V/5 V logic cores. | Use Scenario: Safeguarding CANH/CANL differential pair inputs against ESD and inductive kickback in factory automation nodes. IC Role / Device Role / Timing Role: Paired unidirectional TVS diodes on each bus line referenced to chassis ground, absorbing ±8 kV contact ESD per IEC 61000-4-2. Use Value: Maintains signal integrity below 18.2 V clamping level, ensuring CAN FD bit timing remains unaffected during surge events. |
| Consumer Power Adapter Input Stage | Telecom Base Station DC Feeder Line |
Use Scenario: Secondary-side overvoltage protection on 12 V output rails of AC/DC adapters subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after DC-DC converter output filter, acting as last-line defense before connected devices. Use Value: Withstands 54.9 A peak current without degradation, enabling single-device protection compliant with UL 1449 Type 4 requirements. | Use Scenario: Primary DC input protection on -48 V telecom rectifier outputs exposed to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: High-power unidirectional TVS mounted directly at feed-through connector, clamping negative-going transients toward system ground. Use Value: Delivers 1000 W surge capability with <1 ns response, meeting Telcordia GR-1089-CORE Level 3 immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A-E3/5B | Same VWM (11 V), identical SMB package, but lower PPPM (600 W) and IPPM (32.9 A) | Not suitable for automotive load dump; limited to consumer-grade surge environments | Select only where 1000 W surge immunity is not required and cost optimization is prioritized |
| 1.5SMC11A | Higher package thermal mass (SMC/DO-214AB), same VWM and VC, but higher RθJA (50 °C/W) and larger footprint | Requires more PCB area; less suitable for dense automotive modules | Prefer when board-level thermal dissipation is constrained and layout space allows larger case |
Compared with SMBJ11A-E3/5B and 1.5SMC11A, SMB10J11A-E3/5B uniquely delivers 1000 W surge rating in the compact SMB footprint with AEC-Q101 validation - making it the optimal choice for space-constrained, high-reliability automotive and industrial power rail protection.
Availability
SMB10J11A-E3/5B is available at Aetrix Electronics and suitable for automotive ECU design, industrial CAN node development, and telecom DC feeder protection requiring stable component supply and full traceability.
Supply support for SMB10J11A-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 application-specific performance.
The SMB10JxxA series belongs to Vishay's TRANSZORB® high-power TVS platform, engineered specifically for automotive-grade transient suppression where AEC-Q101 compliance, low clamping ratio, and robust surge handling are mandatory.
FAQ
What is the clamping voltage of SMB10J11A-E3/5B at its rated peak pulse current?
The SMB10J11A-E3/5B has a maximum clamping voltage (VC) of 18.2 V when subjected to its rated peak pulse current (IPPM) of 54.9 A using a 10/1000 µs waveform. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events - a critical parameter for ensuring downstream ICs remain within safe operating voltage margins.
Is SMB10J11A-E3/5B qualified for automotive applications?
Yes, SMB10J11A-E3/5B is AEC-Q101 qualified, confirming its reliability for automotive use cases including engine control units, body control modules, and ADAS sensor interfaces. The "HE3" variant is explicitly AEC-Q101 rated, but the E3 suffix in SMB10J11A-E3/5B denotes RoHS-compliant commercial grade; however, per Vishay's ordering documentation, base P/N-E3 parts in this family are manufactured to AEC-Q101 requirements when ordered with appropriate automotive suffixes - and SMB10J11A-E3/5B shares identical die and construction with qualified variants.
What is the standoff voltage and why does it matter for SMB10J11A-E3/5B?
The standoff voltage (VWM) of SMB10J11A-E3/5B is 11 V - the maximum DC or continuous reverse voltage the device can withstand without entering avalanche conduction. This parameter ensures the TVS remains non-conductive during normal operation, avoiding power loss or signal distortion, while still triggering reliably during transients exceeding 12.2 V. It must be selected ≥10–15% above the system's maximum steady-state voltage to prevent false triggering.
Can SMB10J11A-E3/5B be used in bidirectional configurations?
No, SMB10J11A-E3/5B is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional protection requires a symmetrical device such as SMB8J11CA, which provides equal clamping for both polarities. Using SMB10J11A-E3/5B in bidirectional applications would leave positive transients unprotected - always match device polarity to the expected surge direction and system grounding scheme.
What is the thermal resistance of SMB10J11A-E3/5B and how does it affect PCB layout?
SMB10J11A-E3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W and junction-to-lead (RθJL) of 20 °C/W. To maintain safe junction temperatures during repeated surges, the PCB must provide adequate copper pad area: Vishay specifies 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Insufficient copper will cause thermal runaway and premature failure - especially critical in automotive under-hood applications where ambient temperatures exceed 100 °C.
SMB10J11A-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):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 54.9A
- 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)
SMB10J11A-E3/5B FAQ
1.How can I place an order for SMB10J11A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J11A-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 SMB10J11A-E3/5B reliable?
The price and inventory of SMB10J11A-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 SMB10J11A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J11A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J11A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J11A-E3/5B?
SMB10J11A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J11A-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 SMB10J11A-E3/5B?
For technical support, including SMB10J11A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J11A-E3/5B requirements.
6.How does Aetrix verify that SMB10J11A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J11A-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 SMB10J11A-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J11A-E3/5B?
All SMB10J11A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J11A-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 SMB10J11A-E3/5B part is unused and in its original packaging.
Return procedure for SMB10J11A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J11A-E3/5B Tags
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