SMA5C20-TP Equivalent & Substitute Parts

Part Overview

The SMA5C20-TP is a Zener diode rated at 20 V nominal voltage with 3 W maximum power dissipation in a surface mount DO-214AC (SMA) package. This component is manufactured by Micro Commercial Co and is currently classified as obsolete. Due to its obsolete status, equivalent substitute parts with active product status are necessary to maintain design continuity and ensure long-term component availability for new production runs and system maintenance.

Substiute Parts

SMA5C20-TP

Micro Commercial CoIn Stock: 1125SMA5C20-TP Datasheet

Current PartRFQ

3SMAJ5932B-TP

Micro Commercial CoIn Stock: 263693SMAJ5932B-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMA5C20-TP is determined by the following critical parameters:

Primary Substitution Criteria:

• Zener voltage rating: 20 V nominal
• Maximum power dissipation: 3 W
• Package type: DO-214AC (SMA) surface mount
• Mounting configuration: Surface mount

Secondary Compatibility Factors:

• Operating temperature range compatibility
• RoHS3 compliance status
• Regulatory compliance (ECCN, HTSUS classification)

The substitute part 3SMAJ5932B-TP meets all primary substitution criteria. Both components share identical nominal Zener voltage (20 V), maximum power rating (3 W), and package configuration (DO-214AC, SMA). Both are RoHS3 compliant and operate within overlapping temperature ranges suitable for industrial applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 3SMAJ5932B-TP

The 3SMAJ5932B-TP is the direct functional equivalent for the obsolete SMA5C20-TP. Both components are manufactured by Micro Commercial Co and share identical core electrical specifications: 20 V nominal Zener voltage and 3 W maximum power dissipation in the DO-214AC (SMA) package.

Advantages of 3SMAJ5932B-TP:

• Active product status ensures ongoing availability and supply chain continuity
• Tighter Zener voltage tolerance (±5% versus ±6%)
• Lower maximum impedance (14 Ohms versus 24 Ohms), providing improved voltage regulation characteristics
• Higher inventory levels (26,268 pcs in stock versus 1,024 pcs)
• ROHS3 compliant with REACH unaffected status

Operational Considerations: The 3SMAJ5932B-TP operates across a minimum temperature of -55°C compared to the SMA5C20-TP's -65°C. For applications requiring operation below -55°C, the lower temperature limit of the substitute must be evaluated against system requirements. The upper temperature limit of 150°C is identical for both components.

Both components carry identical regulatory classifications (ECCN: EAR99, HTSUS: 8541.10.0050) and moisture sensitivity levels (MSL 1, Unlimited).

Frequently Asked Questions (FAQ)

Q: Can the 3SMAJ5932B-TP directly replace the SMA5C20-TP in existing designs?

A: Yes. Both components share the same 20 V nominal Zener voltage, 3 W power rating, and DO-214AC (SMA) package configuration. The electrical and mechanical interfaces are identical, allowing direct substitution in PCB layouts and circuit designs.

Q: What are the differences in electrical performance between these two parts?

A: The 3SMAJ5932B-TP provides tighter Zener voltage tolerance (±5% versus ±6%) and lower maximum impedance (14 Ohms versus 24 Ohms). These characteristics result in improved voltage regulation stability. Forward voltage at 200 mA is slightly higher (1.5 V versus 1.2 V), and reverse leakage current is higher (1 µA versus 500 nA at comparable voltages).

Q: Are there temperature range limitations when substituting?

A: The 3SMAJ5932B-TP has a minimum operating temperature of -55°C, compared to -65°C for the SMA5C20-TP. Applications requiring operation below -55°C must evaluate this specification against system requirements. Both components operate to 150°C maximum.

Q: Is the packaging identical between these components?

A: Yes. Both components use the DO-214AC (SMA) surface mount package. The 3SMAJ5932B-TP is supplied in Tape & Reel (TR) packaging, while the SMA5C20-TP packaging format is not specified. Both are compatible with standard surface mount assembly processes.

Q: What is the product status significance?

A: The SMA5C20-TP is classified as obsolete, indicating discontinued manufacturing and limited remaining inventory. The 3SMAJ5932B-TP maintains active product status with substantial inventory (26,268 pcs), ensuring reliable long-term availability for production and maintenance applications.

Q: Are both components RoHS compliant?

A: Yes. Both the SMA5C20-TP and 3SMAJ5932B-TP are ROHS3 compliant. The 3SMAJ5932B-TP additionally carries REACH unaffected status. Both components have moisture sensitivity level 1 (unlimited), indicating no special moisture handling requirements.