SMA5C30-TP Equivalent & Substitute Parts

Part Overview

The SMA5C30-TP is a Zener diode rated at 30 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 and limited availability relative to active alternatives, identifying equivalent substitute parts is necessary for ongoing design support and production continuity. The substitute part maintains the same core electrical specifications and package form factor while offering improved availability and active product status.

Substiute Parts

SMA5C30-TP

Micro Commercial CoIn Stock: 757SMA5C30-TP Datasheet

Current PartRFQ

3SMAJ5936B-TP

Micro Commercial CoIn Stock: 38723SMAJ5936B-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMA5C30-TP with the 3SMAJ5936B-TP is based on the following alignment of critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Identical nominal Zener voltage: 30 V
• Identical maximum power rating: 3 W
• Identical package form factor: DO-214AC (SMA)
• Identical mounting type: Surface Mount
• Identical RoHS3 compliance status
• Identical MSL rating: 1 (Unlimited)

Secondary Compatibility Factors:

• Both components operate within overlapping temperature ranges (substitute supports -55°C to 150°C, main part supports -65°C to 150°C)
• Both components share the same ECCN and HTSUS classifications
• Both components are manufactured by the same supplier

The substitute part is classified as active product status, ensuring continued availability and manufacturing support, whereas the main part is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The 3SMAJ5936B-TP is a direct functional equivalent to the SMA5C30-TP for applications requiring a 30 V, 3 W Zener diode in DO-214AC surface mount packaging. Selection of the substitute part is supported by the following factors:

Compliance & Regulatory:

• Both parts maintain ROHS3 compliance, satisfying environmental and regulatory requirements
• Both parts carry identical ECCN and HTSUS classifications
• Both parts maintain MSL 1 rating, indicating no moisture sensitivity constraints

Product Lifecycle:

• The substitute part holds active product status, ensuring long-term availability and manufacturing continuity
• The main part is classified as obsolete, presenting supply chain risk for new designs and production replenishment

Electrical Performance:

• Core electrical specifications (30 V nominal, 3 W maximum power) are identical
• The substitute part exhibits tighter voltage tolerance (±5% versus ±6.67%), providing improved voltage regulation accuracy
• The substitute part demonstrates lower impedance (28 Ohms versus 30 Ohms), offering marginally improved dynamic response

Thermal Considerations:

• The substitute part supports a minimum operating temperature of -55°C, which is 10°C higher than the main part (-65°C). Applications requiring operation below -55°C require verification of thermal performance requirements
• Both parts support identical maximum operating temperature of 150°C

Packaging & Handling:

• Identical DO-214AC (SMA) package form factor ensures PCB layout compatibility without redesign
• Identical MSL 1 rating eliminates moisture sensitivity concerns for both parts
• Substitute part is supplied in Tape & Reel (TR) packaging, standard for high-volume surface mount assembly

Frequently Asked Questions (FAQ)

Q: Can the 3SMAJ5936B-TP be used as a direct replacement for the SMA5C30-TP in existing designs?

A: Yes. Both parts share identical nominal Zener voltage (30 V), maximum power rating (3 W), and DO-214AC package form factor. PCB layout and schematic integration require no modification. The substitute part is electrically and mechanically compatible for direct substitution.

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

A: The primary differences are: (1) Product status—the substitute is active while the main part is obsolete; (2) Voltage tolerance—the substitute offers ±5% tolerance versus ±6.67%; (3) Impedance—the substitute has 28 Ohms versus 30 Ohms; (4) Forward voltage—the substitute is rated 1.5 V @ 200 mA versus 1.2 V @ 200 mA; (5) Minimum operating temperature—the substitute supports -55°C versus -65°C. All other parameters are identical.

Q: Are there any thermal operating range limitations when substituting?

A: The substitute part supports a minimum operating temperature of -55°C, which is 10°C higher than the main part. Applications requiring operation at temperatures below -55°C should verify that the substitute part meets thermal performance requirements. Both parts support identical maximum operating temperature of 150°C.

Q: Does the tighter voltage tolerance of the substitute part affect circuit performance?

A: The substitute part provides ±5% voltage tolerance compared to ±6.67% for the main part. This represents improved voltage regulation accuracy and may enhance circuit performance in applications sensitive to Zener voltage variation. Circuits designed for the main part's ±6.67% tolerance will operate within specification with the substitute part.

Q: Are there any compliance or regulatory differences?

A: No. Both parts are ROHS3 compliant, carry identical ECCN and HTSUS classifications, and maintain MSL 1 (Unlimited) moisture sensitivity ratings. No compliance or regulatory differences exist between the two parts.

Q: What packaging formats are available for each part?

A: The main part (SMA5C30-TP) is supplied in standard packaging. The substitute part (3SMAJ5936B-TP) is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly operations.

Q: Why is the main part classified as obsolete?

A: The SMA5C30-TP is classified as obsolete by the manufacturer. The 3SMAJ5936B-TP is the active equivalent, ensuring continued availability and manufacturing support for new designs and production requirements.