SMBJ200C Equivalent & Substitute Parts

Part Overview

The SMBJ200C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 200V reverse standoff voltage with a 340.2V maximum clamping voltage and 1.9A peak pulse current capability in a DO-214AA (SMB) package. The SMBJ200C is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement.

Substiute Parts

SMBJ200C

Littelfuse Inc.In Stock: 761SMBJ200C Datasheet

Current PartRFQ

SMBJ200CA

Good-Ark SemiconductorIn Stock: 6441SMBJ200CA Datasheet

DirectRFQ

SMBJ200CA

Good-Ark SemiconductorIn Stock: 6441SMBJ200CA Datasheet

DirectRFQ

SMBJ200CA-TP

Micro Commercial CoIn Stock: 951SMBJ200CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ200C is determined by strict equivalence across the following electrical and mechanical parameters:

• Reverse standoff voltage: 200V (nominal)
• Peak pulse current: 1.9A
• Peak pulse power: 600W
• Package type: DO-214AA (SMB) surface mount
• Bidirectional configuration: Single channel
• Type classification: Zener diode

Substitute parts must maintain identical reverse standoff voltage and peak pulse ratings to ensure functional compatibility. Variations in clamping voltage and breakdown voltage are acceptable within the operating envelope of the application, provided the package and current/power ratings remain constant. All substitute parts identified are active or available from authorized distributors, addressing the obsolescence status of the original component.

Parameter Comparison

Engineering Selection Recommendations

Both SMBJ200CA (Good-Ark Semiconductor) and SMBJ200CA-TP (Micro Commercial Co) are functionally equivalent substitutes for the obsolete SMBJ200C. Selection between these alternatives should be based on the following criteria:

SMBJ200CA (Good-Ark Semiconductor): This part maintains active product status with ROHS3 compliance and REACH unaffected designation. Operating temperature range is -55°C to 150°C. Inventory availability is substantial at 6400 units. This option is suitable for applications operating within the standard industrial temperature range.

SMBJ200CA-TP (Micro Commercial Co): This part also maintains active product status with ROHS3 compliance and REACH unaffected designation. The extended operating temperature range of -55°C to 175°C provides additional thermal margin for high-temperature applications. Inventory availability is 873 units. This option is recommended for designs requiring enhanced thermal performance.

Both substitutes exhibit slightly lower maximum clamping voltage (324V versus 340.2V) and higher minimum breakdown voltage (224V versus 211.95V) compared to the original SMBJ200C. These variations remain within acceptable tolerance for general-purpose transient suppression applications and do not compromise functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can SMBJ200CA or SMBJ200CA-TP be used as direct replacements for SMBJ200C in existing designs?

A: Yes. Both substitute parts maintain identical reverse standoff voltage (200V), peak pulse current (1.9A), peak pulse power (600W), and package configuration (DO-214AA, SMB). Electrical performance differences are within acceptable operating margins for general-purpose TVS applications.

Q: What is the significance of the difference in clamping voltage between the original and substitute parts?

A: The SMBJ200C specifies a maximum clamping voltage of 340.2V, while both substitutes specify 324V. This 16.2V difference represents a tighter clamping characteristic in the substitute parts, which provides improved transient suppression performance. This is not a limitation but rather an enhancement for overvoltage protection.

Q: Are there temperature range considerations when selecting between the two substitute options?

A: The SMBJ200CA operates from -55°C to 150°C, matching the standard industrial range. The SMBJ200CA-TP extends to 175°C maximum junction temperature, providing additional thermal headroom. Selection depends on the specific thermal environment of the application. The original SMBJ200C specified -65°C minimum, which is not matched by either substitute; applications requiring this lower temperature limit require alternative evaluation.

Q: Do both substitute parts meet the same compliance standards as the original SMBJ200C?

A: Yes. Both SMBJ200CA and SMBJ200CA-TP are ROHS3 compliant and REACH unaffected, matching the compliance profile of the original component. Both carry EAR99 export classification and identical HTSUS coding.

Q: What packaging options are available for the substitute parts?

A: SMBJ200CA is supplied in Cut Tape (CT) and Digi-Reel packaging. SMBJ200CA-TP is supplied in bulk packaging. Packaging selection should align with assembly process requirements and inventory management practices.