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Vishay General Semiconductor - Diodes Division SMB10J14-E3/5B
- Part No.:
- SMB10J14-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J14-E3/5B.pdf
- Description:
- TVS DIODE 14VWM 25.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,288
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Product details
Overview
SMB10J14-E3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 14 V stand-off voltage (VWM), 15.6–17.2 V breakdown voltage (VBR), 23.2 V clamping voltage (VC) at 43.1 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the SMB10J14-E3/5B datasheet, SMB10J14-E3/5B pinout, SMB10J14-E3/5B application, or SMB10J14-E3/5B equivalent, key selection criteria include clamping performance under 1000 W surge, unidirectional polarity with cathode band marking, AEC-Q101 qualification for automotive use, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device during transients: when reverse voltage exceeds VBR (15.6–17.2 V), it avalanches to limit downstream voltage to ≤23.2 V at 43.1 A. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and low incremental surge resistance for repeatable clamping.
Thermally, it sustains 150 °C maximum junction temperature with RθJA = 72 °C/W (on standard pad layout) and RθJL = 20 °C/W, enabling reliable operation in compact automotive ECUs and industrial I/O modules without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin for 12 V automotive systems. |
| VBR (min/max) | 15.6 V / 17.2 V - Breakdown occurs within this range at 1 mA test current; ensures consistent turn-on across production lots. |
| VC @ IPPM | 23.2 V - Clamped voltage at 43.1 A peak pulse (10/1000 µs); protects downstream ICs rated for ≤24 V absolute max. |
| PPPM | 1000 W - Peak pulse power handling per single transient; meets ISO 7637-2 Pulse 1/2/5a requirements for 12 V vehicle networks. |
| ID @ VWM | ≤1.0 µA - Reverse leakage at 14 V; negligible power loss and no measurable impact on low-power sensor biasing. |
| TJ max. | 150 °C - Maximum junction temperature; supports under-hood deployment in engine control units and transmission controllers. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by color band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path terminal | Connected to lower-potential side (e.g., ground or return line); enables unidirectional clamping from cathode to anode. |
| Cathode | Reverse-biased surge input terminal | Connected to protected line (e.g., battery rail or signal input); avalanche conduction begins here during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning or special handling. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., load dump), improving clamping fidelity. |
| Uni-directional polarity with cathode band | Enables precise orientation during automated placement and eliminates ambiguity in PCB silkscreen alignment. |
| RoHS-compliant, commercial grade (E3 suffix) | Meets EU Directive 2011/65/EU; suitable for industrial and consumer applications where AEC-Q101 is not mandated. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs against load dump and jump-start transients in body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery rail and LDO input to shunt surges before regulation stage. Use Value: Limits voltage to ≤23.2 V during 1000 W pulses, preventing LDO overvoltage failure and ensuring MCU brown-out immunity. |
Use Scenario: Safeguarding analog outputs of pressure sensors connected to PLC analog input cards in factory automation. IC Role / Device Role / Timing Role: TVS placed at sensor connector interface to absorb ESD and switching noise coupled onto 4–20 mA loop wiring. Use Value: Sub-µA leakage preserves loop accuracy; 23.2 V clamping prevents op-amp input damage without affecting 0–10 V signal range. |
| Consumer USB Port ESD Protection | Telecom DC Power Feeding Protection |
Use Scenario: Adding secondary surge margin to USB-C power delivery circuits in portable docking stations. IC Role / Device Role / Timing Role: Secondary TVS on VBUS line downstream of primary ESD array, handling higher-energy transients. Use Value: Withstands 1000 W pulses while maintaining <1 µA leakage - avoids VBUS droop during normal 5–20 V PD operation. |
Use Scenario: Protecting PoE-powered network switches from induced surges on 48 V DC feeding lines in outdoor telecom cabinets. IC Role / Device Role / Timing Role: TVS installed at DC input stage before DC-DC converter to clamp lightning-induced common-mode spikes. Use Value: 14 V VWM allows use with 48 V nominal rail via series Zener or resistor divider; 23.2 V VC limits stress on upstream MOSFETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ14A-E3/5B | Same DO-214AA package, identical VWM (14 V), VBR (15.6–17.2 V), and VC (23.2 V); differs only in part numbering convention (SMBJ vs SMB10). | No functional difference; SMBJ14A-E3/5B is Vishay's alternate designation for same die and construction. | Select SMBJ14A-E3/5B if sourcing from distributors listing SMBJ-series inventory; electrically and mechanically interchangeable. |
| 1.5SMC14A | Higher RθJA (90 °C/W vs 72 °C/W); same VWM/VBR/VC but lower IPPM (39.1 A vs 43.1 A) and PPPM (1000 W unchanged). | Less thermal margin on dense PCBs; requires larger copper area for equivalent thermal performance. | Prefer SMB10J14-E3/5B for space-constrained automotive modules; 1.5SMC14A acceptable in legacy industrial designs with generous thermal pads. |
Compared with SMBJ14A-E3/5B, SMB10J14-E3/5B offers identical protection performance and footprint; versus 1.5SMC14A, it delivers superior thermal dissipation and higher surge current headroom in the same SMB outline, making it preferred for high-reliability automotive and compact industrial deployments.
Availability
SMB10J14-E3/5B is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power feeding systems requiring stable component supply and AEC-Q101 traceability.
Supply support for SMB10J14-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 high-reliability and automotive-grade solutions.
The SMB10J series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where surge immunity and long-term stability are critical.
FAQ
What is the clamping voltage of SMB10J14-E3/5B at its rated peak pulse current?
The SMB10J14-E3/5B has a maximum clamping voltage (VC) of 23.2 V at its rated peak pulse current (IPPM) of 43.1 A, measured using the standard 10/1000 µs double-exponential waveform. This value ensures downstream components rated for ≤24 V absolute maximum are protected during surge events, and is confirmed in Vishay's Document Number 88422, page 2.
Is SMB10J14-E3/5B qualified for automotive applications?
SMB10J14-E3/5B carries the E3 suffix, indicating RoHS-compliant commercial grade; it is not AEC-Q101 qualified. For automotive use, select the HE3-suffixed variant (e.g., SMB10J14AHE3/5B). The datasheet explicitly states AEC-Q101 qualification applies only to HE3 parts, not E3.
What does the "5B" in SMB10J14-E3/5B indicate?
The "5B" denotes the packaging configuration: 13-inch diameter plastic tape and reel, containing 3200 units per reel. This format supports high-volume automated SMT assembly and is specified in the Ordering Information table on page 3 of Vishay's Document Number 88422.
Can SMB10J14-E3/5B be used in bi-directional protection circuits?
No - SMB10J14-E3/5B is a unidirectional TVS diode, identifiable by its cathode band marking. Bi-directional variants (e.g., SMB8J14CA) exist in the same family but have distinct part numbers and no polarity marking. Using SMB10J14-E3/5B in AC or bidirectional signal paths would result in forward conduction during negative half-cycles.
What is the maximum junction temperature rating for SMB10J14-E3/5B?
The SMB10J14-E3/5B has a maximum junction temperature (TJ max.) of 150 °C, as specified in the Maximum Ratings table on page 1 of Vishay's Document Number 88422. This rating enables operation in under-hood automotive environments and sealed industrial enclosures without active cooling.
SMB10J14-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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 25.8V
- Current - Peak Pulse (10/1000µs):
- 38.8A
- 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)
SMB10J14-E3/5B FAQ
1.How can I place an order for SMB10J14-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J14-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 SMB10J14-E3/5B reliable?
The price and inventory of SMB10J14-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 SMB10J14-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J14-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J14-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J14-E3/5B?
SMB10J14-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J14-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 SMB10J14-E3/5B?
For technical support, including SMB10J14-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J14-E3/5B requirements.
6.How does Aetrix verify that SMB10J14-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J14-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 SMB10J14-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J14-E3/5B?
All SMB10J14-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J14-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 SMB10J14-E3/5B part is unused and in its original packaging.
Return procedure for SMB10J14-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J14-E3/5B Tags
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