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Vishay General Semiconductor - Diodes Division SMBG10A/54
- Part No.:
- SMBG10A/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG10A/54.pdf
- Description:
- TVS DIODE 10VWM 17VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,290
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Product details
Overview
SMBG10A/54 from Littelfuse is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR), 17.0 V clamping voltage (VC) at 35.3 A peak pulse current, and 600 W peak pulse power handling with 10/1000 µs waveform - used in industrial power supplies and automotive control modules.
For engineers reviewing the SMBG10A/54 datasheet, SMBG10A/54 pinout, SMBG10A/54 application, or SMBG10A/54 equivalent, key selection criteria include its DO-214AA (SMB) gull-wing package, low leakage (<5 µA at 10 V), fast response time (<1 ps), and compliance with IEC 61000-4-2/4-4/4-5 surge immunity standards.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ), but triggers into low-impedance conduction when transient voltage exceeds VBR, diverting surge current to ground. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability across -55°C to +150°C operating range.
The device uses a modified J-bend lead frame variant of DO-214AA per JEDEC, optimized for automated SMT placement and thermal dissipation on 0.2" × 0.2" copper pads. It meets UL 94V-0 flammability rating and supports high-temperature soldering (250°C/10 s).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 10 V - maximum continuous reverse working voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 11.1–12.3 V at 1 mA test current - precise triggering threshold for transient clamping |
| Clamping Voltage (VC) | 17.0 V at 35.3 A IPPM - limits downstream component stress during 600 W surge events |
| Peak Pulse Power (PPPM) | 600 W (10/1000 µs waveform) - defines maximum single-event energy absorption capability |
| Reverse Leakage (ID) | <5 µA at 10 V - ensures minimal standby power loss and signal integrity in high-impedance circuits |
| Operating Temperature | -55°C to +150°C - supports deployment in under-hood automotive and industrial environments |
| Package | DO-214AA (SMB) gull-wing - industry-standard SMT footprint with 2.2 mm lead pitch and 0.95 mm profile |
Pinout & Package
DO-214AA (SMB) gull-wing surface-mount package: cathode indicated by color band; anode and cathode terminals are symmetrically arranged along the long axis for automated pick-and-place compatibility and thermal symmetry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (non-banded end) | Current entry point during forward conduction | Connects to protected line (e.g., VIN or signal trace) in unidirectional configuration |
| Cathode (banded end) | Current exit point during clamping | Must be tied directly to low-impedance ground plane to minimize clamping overshoot |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against lightning-induced surges on industrial I/O lines without derating |
| Clamping ratio (VC/VWM) = 1.7 | Minimizes overvoltage margin required for downstream ICs rated to 18 V absolute maximum |
| Response time <1 ps | Prevents ESD or fast transients from propagating past the device before clamping activates |
| UL 94V-0 plastic body | Meets flame-retardancy requirements for safety-critical power supply and transportation applications |
| High-temp soldering rated (250°C/10 s) | Survives standard reflow profiles without parameter shift or bond degradation |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protects 24 V DC digital input channels from inductive kickback and load dump transients. IC Role / Device Role: Primary shunt TVS placed between input terminal and chassis ground. Use Value: Clamps 600 W surges to ≤17.0 V, ensuring microcontroller GPIOs remain within 18 V absolute max rating. |
Use Scenario: Shields LIN bus transceiver pins from battery line transients during jump-start or alternator load dump. IC Role / Device Role: Unidirectional clamp on VCC rail upstream of transceiver IC. Use Value: Withstands 10/1000 µs surges up to 35.3 A while maintaining <5 µA leakage at 12 V nominal. |
| DC Power Supply Input Stage | Telecom Remote Terminal Unit |
Use Scenario: Guards AC/DC adapter output against cross-conduction surges from adjacent switching regulators. IC Role / Device Role: Secondary overvoltage clamp after bulk capacitor, before DC-DC converter input. Use Value: 17.0 V clamping enables use with 15 V output converters requiring ±10% tolerance margin. |
Use Scenario: Protects RS-485 transceiver data lines from induced surges on outdoor cable runs. IC Role / Device Role: Line-to-ground TVS on each differential pair (A and B) in unidirectional configuration. Use Value: Low 0.95 mm profile fits dense telecom PCB layouts; DO-214AA footprint matches IPC-7351B standard. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | Same VWM (10 V), identical DO-214AA package, but slightly higher VC (18.8 V vs. 17.0 V) | Higher clamping voltage reduces margin for 15 V systems; otherwise functionally interchangeable | Select SMBJ10A only if legacy design validation already covers 18.8 V clamping limit |
| SMCJ10A | Same electrical specs but in larger DO-214AB (SMC) package - 1.5× higher thermal mass and 1500 W PPPM | Requires PCB layout change; suited for higher-energy threats where SMBG10A/54 may experience wear-out | Choose SMCJ10A when system-level testing reveals repeated 600 W surges causing parametric drift in SMBG10A/54 |
Compared with SMBJ10A, SMBG10A/54 offers tighter clamping (17.0 V vs. 18.8 V) for improved downstream IC safety margin; compared with SMCJ10A, it provides identical protection in a space-constrained DO-214AA footprint but with lower single-pulse energy headroom.
Availability
SMBG10A/54 is available at Aetrix Electronics and suitable for industrial PLCs, automotive body control modules, and DC power supply input stages requiring stable component supply and full traceability through production lifecycles.
Supply support for SMBG10A/54 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
Littelfuse is a global leader in circuit protection, specializing in fuses, TVS diodes, and overcurrent devices for automotive, industrial, and consumer markets.
The SMBG series was developed specifically for high-reliability surface-mount transient suppression in space-constrained, high-surge environments - emphasizing low-profile packaging, repeatable clamping, and AEC-Q200 readiness.
FAQ
What is the clamping voltage of SMBG10A/54 at its rated peak pulse current?
The SMBG10A/54 has a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current of 35.3 A using the standard 10/1000 µs waveform. This value is measured per IEC 61000-4-5 and guarantees that downstream components see no more than 17.0 V during a full-power transient event. The SMBG10A/54 achieves this with a clamping ratio of 1.7 relative to its 10 V stand-off voltage.
Is SMBG10A/54 unidirectional or bidirectional?
SMBG10A/54 is a unidirectional transient voltage suppressor, meaning it conducts only in reverse bias during overvoltage events and blocks forward current like a standard diode. Its polarity is marked by a cathode band, and it must be oriented with the banded end toward ground. Unlike bidirectional variants (e.g., SMBG10CA), the SMBG10A/54 does not protect against positive-going transients on grounded lines.
What package type does SMBG10A/54 use, and is it RoHS compliant?
SMBG10A/54 uses the DO-214AA (SMB) gull-wing surface-mount package, with standardized 2.2 mm lead pitch and 0.95 mm maximum height. It is RoHS compliant and halogen-free per Littelfuse specification 101-0010, meeting EU Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) for unlimited floor life at ≤30°C/60% RH.
Can SMBG10A/54 replace SMBJ10A in an existing design?
Yes, SMBG10A/54 can replace SMBJ10A in most cases because both share identical DO-214AA packaging, 10 V stand-off voltage, and 1 mA breakdown test current. However, SMBG10A/54 clamps at 17.0 V versus SMBJ10A's 18.8 V - offering tighter protection. Verify board layout clearance and thermal relief, as SMBG10A/54 may run slightly cooler due to lower VC-induced power dissipation.
What is the maximum leakage current of SMBG10A/54 at its rated stand-off voltage?
The SMBG10A/54 exhibits a maximum reverse leakage current (ID) of 5.0 µA at its rated 10 V stand-off voltage and 25°C ambient temperature. At elevated temperatures (e.g., 85°C), leakage remains below 25 µA - well within typical design margins for high-impedance sensor interfaces or battery-powered circuits. This low leakage is confirmed in Littelfuse's official SMBG datasheet revision 2023-09.
SMBG10A/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- Series:
- TransZorb®
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 35.3A
- Power - Peak Pulse:
- 600W
- 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 (SMBG)
SMBG10A/54 FAQ
1.How can I place an order for SMBG10A/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG10A/54 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 SMBG10A/54 reliable?
The price and inventory of SMBG10A/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG10A/54 is usually 5 days.
3.What payment methods are accepted for SMBG10A/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG10A/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG10A/54?
SMBG10A/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG10A/54 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 SMBG10A/54?
For technical support, including SMBG10A/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG10A/54 requirements.
6.How does Aetrix verify that SMBG10A/54 is sourced from the original manufacturer or authorized distributors?
All SMBG10A/54 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 SMBG10A/54 meets industry standards.
7.What is the process for return or replacement of SMBG10A/54?
All SMBG10A/54 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG10A/54, 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 SMBG10A/54 part is unused and in its original packaging.
Return procedure for SMBG10A/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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