SMA5C10-TP Zener Diode Equivalent & Substitute Parts

Part Overview

The SMA5C10-TP is a 10 V, 3 W Zener diode manufactured by Micro Commercial Co in the DO-214AC (SMA) surface mount package. This component is classified as obsolete, indicating discontinued production and limited availability in the market. The identification of equivalent and substitute parts is necessary to maintain design continuity and ensure procurement of functionally compatible alternatives for new production runs and field replacements.

Substiute Parts

SMA5C10-TP

Micro Commercial CoIn Stock: 712SMA5C10-TP Datasheet

Current PartRFQ

3SMAJ5925B-TP

Micro Commercial CoIn Stock: 57393SMAJ5925B-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMA5C10-TP is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Zener voltage (nominal): 10 V
• Maximum power dissipation: 3 W
• Package type: DO-214AC (SMA) surface mount
• RoHS3 compliance requirement

Secondary Compatibility Parameters:

• Voltage tolerance range
• Impedance characteristics
• Reverse leakage current specifications
• Forward voltage characteristics
• Operating temperature range

The substitute part 3SMAJ5925B-TP meets all primary criteria and maintains functional equivalence within the specified electrical parameters. Variations in secondary parameters reflect manufacturing improvements and design refinements while preserving core circuit functionality.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 3SMAJ5925B-TP

The 3SMAJ5925B-TP is the direct substitute for the obsolete SMA5C10-TP. Both components are manufactured by Micro Commercial Co and share identical zener voltage (10 V) and maximum power rating (3 W) specifications. The substitute maintains the same DO-214AC (SMA) surface mount package and RoHS3 compliance status.

Compliance and Certification Alignment:

• Both parts carry ROHS3 compliance certification
• Both parts have MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions
• Both parts are classified under ECCN EAR99 and HTSUS 8541.10.0050

Product Status Advantage: The 3SMAJ5925B-TP is currently in active production with 5700 units in stock, compared to the obsolete status of the SMA5C10-TP with limited remaining inventory of 674 units. This ensures long-term availability and supply chain continuity.

Parameter Variations: The substitute exhibits improved electrical characteristics including tighter voltage tolerance (±5% versus ±6%) and lower impedance (4.5 Ohms versus 7 Ohms). The operating temperature range of the substitute extends to -55°C minimum, which is acceptable for most applications requiring the original -65°C to 150°C range, provided circuit design does not mandate operation below -55°C.

Frequently Asked Questions (FAQ)

Q: Can the 3SMAJ5925B-TP directly replace the SMA5C10-TP in existing designs?

A: Yes. Both components share identical zener voltage (10 V), maximum power dissipation (3 W), and package type (DO-214AC/SMA). The substitute is electrically and mechanically compatible for direct PCB substitution.

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

A: The primary differences are: (1) voltage tolerance is tighter on the substitute (±5% versus ±6%), (2) impedance is lower on the substitute (4.5 Ohms versus 7 Ohms), (3) forward voltage is higher on the substitute (1.5 V versus 1.2 V at 200 mA), and (4) minimum operating temperature is -55°C for the substitute versus -65°C for the original.

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

A: Lower impedance (4.5 Ohms versus 7 Ohms) on the substitute represents an improvement in dynamic response characteristics. This does not negatively impact circuit performance and typically enhances voltage regulation stability.

Q: Are there any temperature range limitations with the substitute?

A: The substitute operates from -55°C to 150°C, compared to the original -65°C to 150°C. If your application requires operation below -55°C, the substitute may not be suitable. For standard industrial and commercial temperature ranges, the substitute is fully compatible.

Q: What is the packaging difference between these parts?

A: The original SMA5C10-TP is supplied in standard packaging, while the 3SMAJ5925B-TP is supplied in Tape & Reel (TR) format. Both use the identical DO-214AC (SMA) component package. Tape & Reel packaging is standard for automated assembly processes.

Q: Are both parts RoHS compliant?

A: Yes. Both the SMA5C10-TP and 3SMAJ5925B-TP are ROHS3 compliant and carry identical MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.

Q: Why is the original part listed as obsolete?

A: The SMA5C10-TP is classified as obsolete due to discontinued production by the manufacturer. The 3SMAJ5925B-TP represents the active production equivalent that supersedes the original part.