1KSMB8.2C Equivalent & Substitute Parts

Part Overview

The 1KSMB8.2C is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for transient overvoltage protection in surface mount applications. This component features a 12.1V clamping voltage with 82.6A peak pulse current capability in a DO-214AA (SMB) package format.

The 1KSMB8.2C is classified as Obsolete. Identification of equivalent and substitute parts is necessary to ensure continued availability for new designs, production continuity, and system maintenance where this component is specified.

Substiute Parts

1KSMB8.2C

Littelfuse Inc.In Stock: 10361KSMB8.2C Datasheet

Current PartRFQ

1KSMB8.2CA

Littelfuse Inc.In Stock: 101841KSMB8.2CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1KSMB8.2C is determined by electrical and mechanical parameter equivalence across the following criteria:

Electrical Parameters (Critical for Substitution):

• Voltage - Reverse Standoff (Typ): 7.02V
• Voltage - Breakdown (Min): 7.79V
• Voltage - Clamping (Max) @ Ipp: 12.1V
• Current - Peak Pulse (10/1000µs): 82.6A
• Power - Peak Pulse: 1000W

Mechanical Parameters (Critical for Substitution):

• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Bidirectional Channels: 1

Device Type:

• Type: Zener
• Category: Transient Voltage Suppressors (TVS)

The 1KSMB8.2CA qualifies as a direct substitute based on identical electrical specifications and mechanical packaging. Both components share the same voltage ratings, peak pulse current, power dissipation capability, and surface mount DO-214AA package configuration.

Parameter Comparison

*Operating temperature range differs at the lower limit. The 1KSMB8.2CA operates from -55°C minimum, while the 1KSMB8.2C operates from -65°C minimum. Applications requiring operation below -55°C require verification against the 1KSMB8.2CA specification.

Engineering Selection Recommendations

1KSMB8.2CA as Primary Substitute:

The 1KSMB8.2CA is the direct electrical and mechanical equivalent of the 1KSMB8.2C. Both components are manufactured by Littelfuse Inc. and share identical voltage ratings, peak pulse current specifications, power dissipation, and DO-214AA surface mount packaging.

The 1KSMB8.2CA holds Active product status, ensuring continued manufacturing availability and supply chain support. The component is ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic component procurement.

Packaging Consideration:

The 1KSMB8.2C is supplied in standard packaging, while the 1KSMB8.2CA is supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for automated surface mount assembly processes and does not affect electrical or mechanical compatibility.

Temperature Range Consideration:

The 1KSMB8.2CA specifies a minimum operating temperature of -55°C, compared to -65°C for the 1KSMB8.2C. For applications requiring operation at temperatures below -55°C, the lower temperature limit of the 1KSMB8.2CA must be evaluated against system requirements.

Frequently Asked Questions (FAQ)

Q: Can the 1KSMB8.2CA be used as a direct replacement for the 1KSMB8.2C?

A: Yes. The 1KSMB8.2CA is electrically and mechanically equivalent to the 1KSMB8.2C. Both components feature identical voltage ratings (7.02V reverse standoff, 12.1V clamping), peak pulse current (82.6A), power dissipation (1000W), and DO-214AA surface mount packaging. The primary difference is product status: the 1KSMB8.2CA is Active, while the 1KSMB8.2C is Obsolete.

Q: What is the difference between the 1KSMB8.2C and 1KSMB8.2CA packaging?

A: The 1KSMB8.2C is supplied in standard packaging. The 1KSMB8.2CA is supplied in Tape & Reel (TR) format. Tape & Reel is the standard packaging for automated surface mount assembly and does not affect component performance or compatibility.

Q: Are there operating temperature differences between these parts?

A: Yes. The 1KSMB8.2C operates from -65°C to 150°C, while the 1KSMB8.2CA operates from -55°C to 150°C. The upper temperature limit is identical. Applications requiring operation below -55°C must use the 1KSMB8.2C or identify an alternative component with a lower temperature rating.

Q: What regulatory compliance certifications apply to the 1KSMB8.2CA?

A: The 1KSMB8.2CA is ROHS3 Compliant and REACH Unaffected. Both certifications meet current regulatory requirements for electronic component procurement in industrial and commercial applications.

Q: Why is the 1KSMB8.2C classified as Obsolete?

A: The 1KSMB8.2C is no longer in active production. The 1KSMB8.2CA serves as the current production equivalent with identical electrical and mechanical specifications. Existing inventory of the 1KSMB8.2C remains available, but new designs should specify the 1KSMB8.2CA for long-term supply assurance.

Q: Can the 1KSMB8.2CA be used in automotive applications?

A: The 1KSMB8.2C is specified for Automotive grade applications. The 1KSMB8.2CA is specified for General Purpose applications. Automotive-specific requirements must be evaluated against the 1KSMB8.2CA datasheet before substitution in automotive designs.