SMBG13C-E3/5B Equivalent & Substitute Parts

Part Overview

The SMBG13C-E3/5B is a transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 13V reverse standoff voltage with a 23.8V maximum clamping voltage and 25.2A peak pulse current capability in a DO-215AA (SMB) package. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and field replacement requirements.

Substiute Parts

SMBG13C-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 1066SMBG13C-E3/5B Datasheet

Current PartRFQ

SMBG13CA-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 1063SMBG13CA-E3/5B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBG13C-E3/5B is determined by strict equivalence across the following critical parameters:

• Reverse Standoff Voltage: 13V (Typ) — establishes the protection threshold
• Breakdown Voltage: 14.4V (Min) — defines the trigger point for clamping action
• Package / Case: DO-215AA, SMB Gull Wing — ensures mechanical and thermal compatibility
• Mounting Type: Surface Mount — maintains PCB assembly compatibility
• Operating Temperature Range: -55°C to 150°C (TJ) — confirms thermal performance envelope
• Series Classification: TransZorb® — indicates product family consistency

The SMBG13CA-E3/5B qualifies as a direct substitute based on identical values across all critical parameters. Variations in clamping voltage (21.5V vs. 23.8V) and peak pulse current (27.9A vs. 25.2A) remain within the functional tolerance of the SMBG13 base product number and do not preclude substitution in applications where the original part is specified.

Parameter Comparison

Engineering Selection Recommendations

The SMBG13CA-E3/5B is the qualified substitute for the obsolete SMBG13C-E3/5B. Selection is based on the following engineering criteria:

• Product Status: The SMBG13CA-E3/5B maintains active production status, ensuring long-term availability and supply chain continuity.
• Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements.
• Moisture Sensitivity: Both parts carry MSL 1 (Unlimited) classification, indicating no moisture-related handling restrictions.
• Electrical Equivalence: Identical reverse standoff voltage (13V), breakdown voltage (14.4V), and power rating (600W) confirm functional compatibility.
• Mechanical Compatibility: Identical DO-215AA package and surface-mount configuration ensure direct PCB assembly compatibility without layout modifications.

The SMBG13CA-E3/5B is available in Tape & Reel (TR) packaging, supporting automated assembly processes. Current inventory status confirms availability for immediate procurement.

Frequently Asked Questions (FAQ)

Q: Can the SMBG13CA-E3/5B be used as a direct replacement for the SMBG13C-E3/5B?

A: Yes. Both parts share identical reverse standoff voltage (13V), breakdown voltage (14.4V), operating temperature range (-55°C to 150°C), and DO-215AA package configuration. The SMBG13CA-E3/5B is the active equivalent.

Q: What is the difference between the clamping voltages of these two parts?

A: The SMBG13C-E3/5B specifies a maximum clamping voltage of 23.8V, while the SMBG13CA-E3/5B specifies 21.5V. Both values remain within the functional tolerance of the SMBG13 base product family and do not affect substitution eligibility.

Q: Are there packaging differences between these parts?

A: Both parts use the DO-215AA (SMB Gull Wing) package for surface-mount applications. The SMBG13CA-E3/5B is supplied in Tape & Reel (TR) format, which is standard for automated assembly. No package or footprint modifications are required.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the SMBG13C-E3/5B and SMBG13CA-E3/5B are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity classification.

Q: Why is the SMBG13C-E3/5B listed as obsolete?

A: The SMBG13C-E3/5B has been discontinued by the manufacturer. The SMBG13CA-E3/5B is the active production equivalent and is recommended for all new designs and field replacements.

Q: What is the peak pulse current difference, and does it affect compatibility?

A: The SMBG13C-E3/5B specifies 25.2A peak pulse current, while the SMBG13CA-E3/5B specifies 27.9A. The higher current rating of the substitute part provides equivalent or improved performance and does not compromise compatibility.