SMA5C15-TP Equivalent & Substitute Parts

Part Overview

The SMA5C15-TP is a Zener diode rated at 15 V nominal voltage with 3 W maximum power dissipation in a surface mount DO-214AC (SMA) package. Manufactured by Micro Commercial Co, this component is classified as obsolete product status. Due to its obsolete designation, locating equivalent substitute parts with compatible electrical and mechanical specifications is necessary for ongoing design support and production continuity. The substitute part identified maintains the same voltage rating, power rating, and package form factor while offering improved availability through active product status.

Substiute Parts

SMA5C15-TP

Micro Commercial CoIn Stock: 724SMA5C15-TP Datasheet

Current PartRFQ

3SMAJ5929B-TP

Micro Commercial CoIn Stock: 55003SMAJ5929B-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMA5C15-TP with the 3SMAJ5929B-TP is based on the following critical parameters that must align for functional equivalence:

Primary Matching Criteria:

• Voltage - Zener (Nom): Both parts rated at 15 V
• Power - Max: Both parts rated at 3 W
• Package / Case: Both use DO-214AC (SMA) surface mount package
• Mounting Type: Both are surface mount components
• RoHS Status: Both are ROHS3 Compliant

Secondary Considerations:

• Operating temperature range compatibility
• Tolerance specifications
• Impedance and leakage characteristics
• Forward voltage characteristics

The 3SMAJ5929B-TP maintains identical voltage and power ratings with the same physical package, enabling direct substitution in circuit applications where the SMA5C15-TP is specified.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The SMA5C15-TP carries obsolete product status, which restricts long-term availability and future procurement reliability. The 3SMAJ5929B-TP maintains active product status from the same manufacturer, ensuring continued supply chain access and manufacturing support.

Compliance and Certification: Both parts are ROHS3 Compliant and carry identical ECCN (EAR99) and HTSUS (8541.10.0050) classifications, confirming regulatory equivalence for export and environmental compliance purposes.

Electrical Parameter Differences: The 3SMAJ5929B-TP exhibits tighter tolerance (±5% versus ±6%), lower impedance (9 Ohms versus 15 Ohms), and improved forward voltage characteristics. These differences represent performance enhancements rather than incompatibilities. The substitute part operates within a narrower minimum temperature range (-55°C versus -65°C), which is acceptable for most industrial and commercial applications.

Packaging and Mounting: Both parts utilize identical DO-214AC (SMA) surface mount packages with unlimited moisture sensitivity rating (MSL 1), confirming direct physical and mechanical compatibility on printed circuit boards.

Frequently Asked Questions (FAQ)

Q: Can the 3SMAJ5929B-TP directly replace the SMA5C15-TP in existing designs?

A: Yes. Both parts share identical voltage rating (15 V), power rating (3 W), and DO-214AC (SMA) package specifications. The substitute part is physically and electrically compatible for direct board-level substitution.

Q: What are the key differences between these two parts?

A: The 3SMAJ5929B-TP offers tighter voltage tolerance (±5% versus ±6%), lower impedance (9 Ohms versus 15 Ohms), and active product status versus obsolete status. The substitute part has a minimum operating temperature of -55°C compared to -65°C for the original part.

Q: Does the lower impedance of the substitute part affect circuit performance?

A: Lower impedance (9 Ohms versus 15 Ohms) in the 3SMAJ5929B-TP represents improved dynamic response characteristics. This change is beneficial for voltage regulation applications and does not create incompatibility with existing circuit designs.

Q: Are both parts RoHS compliant?

A: Yes. Both the SMA5C15-TP and 3SMAJ5929B-TP are ROHS3 Compliant, confirming equivalent environmental and regulatory status.

Q: What is the significance of the product status difference?

A: The SMA5C15-TP is classified as obsolete, indicating discontinued manufacturing and limited future availability. The 3SMAJ5929B-TP maintains active product status, ensuring reliable long-term supply chain access and manufacturing continuity.

Q: Are the moisture sensitivity levels equivalent?

A: Yes. Both parts carry MSL 1 (Unlimited) rating, indicating identical handling and storage requirements with no moisture sensitivity restrictions.

Q: Can the substitute part be used in applications requiring the -65°C minimum temperature?

A: The 3SMAJ5929B-TP operates from -55°C minimum. Applications requiring operation below -55°C require verification that the substitute part meets the specific thermal requirements of the design.