FCC32501ADTP Equivalent & Substitute Parts

Part Overview

The FCC32501ADTP is a surface mount fuse chip manufactured by Kamaya Inc., rated for 500 mA at 64 VDC with fast blow response characteristics. This component is designed for overcurrent protection in electronic circuits requiring compact 1206 (3216 Metric) package form factor. The part maintains active product status with full RoHS3 compliance and international approvals (CSA, cUL, UL). Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit functional equivalents within specified electrical and mechanical parameters.

Substiute Parts

FCC32501ADTP

Kamaya Inc.In Stock: 10709FCC32501ADTP Datasheet

Current PartRFQ

SF-1206S050-2

Bourns Inc.In Stock: 12064SF-1206S050-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FCC32501ADTP is determined by the following critical parameters:

Primary Matching Criteria:

• Current Rating: 500 mA (exact match required)
• Package / Case: 1206 (3216 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Breaking Capacity @ Rated Voltage: 50 A (exact match required)
• Voltage Rating - DC: 64 V nominal (63 V minimum acceptable within standard tolerance)

Secondary Compliance Criteria:

• RoHS3 Compliance (mandatory)
• Moisture Sensitivity Level 1 (mandatory)
• REACH Unaffected status (mandatory)

The SF-1206S050-2 manufactured by Bourns Inc. qualifies as a direct substitute based on matching current rating, package form factor, mounting type, and breaking capacity. The voltage rating differential (63 V vs. 64 V) falls within acceptable industrial tolerance for fuse component substitution. Both parts maintain identical RoHS3 compliance, MSL rating, and REACH status.

Parameter Comparison

Engineering Selection Recommendations

Both the FCC32501ADTP and SF-1206S050-2 maintain active product status with full regulatory compliance. Selection between these components should be based on the following engineering considerations:

FCC32501ADTP (Kamaya Inc.):

• Approved by CSA, cUL, and UL agencies
• Extended operating temperature range (-55°C ~ 125°C)
• Lower DC cold resistance (0.295 Ohms)
• Fast blow response characteristic

SF-1206S050-2 (Bourns Inc.):

• Approved by UL agency
• Standard operating temperature range (-20°C ~ 105°C)
• Higher DC cold resistance (0.385 Ohms)
• Slow blow response characteristic

The choice between these parts depends on circuit-specific requirements regarding response time characteristics, temperature operating envelope, and regulatory approval scope. Both components satisfy identical current, voltage, package, and breaking capacity specifications.

Frequently Asked Questions (FAQ)

Q: Can SF-1206S050-2 replace FCC32501ADTP in all applications?

A: Substitution is valid for applications where the operating temperature range of -20°C ~ 105°C is acceptable and slow blow response characteristics are compatible with circuit protection requirements. The 63 V DC rating of the SF-1206S050-2 is suitable for circuits designed for 64 V nominal operation.

Q: What is the significance of the response time difference (Fast Blow vs. Slow Blow)?

A: Response time classification indicates the fuse's reaction speed to overcurrent conditions. Fast blow fuses interrupt circuits more rapidly upon fault detection, while slow blow fuses tolerate temporary current surges before activation. Circuit design determines which characteristic is appropriate.

Q: Are both parts physically interchangeable on PCBs?

A: Both components use identical 1206 (3216 Metric) surface mount package form factor and are mechanically interchangeable on printed circuit boards. Dimensional variations (FCC32501ADTP: 3.20mm x 1.60mm x 0.60mm; SF-1206S050-2: 3.10mm x 1.55mm x 0.60mm) are within standard PCB pad tolerance specifications.

Q: What does the DC Cold Resistance difference indicate?

A: DC cold resistance (0.295 Ohms vs. 0.385 Ohms) represents the fuse element resistance under non-operating conditions. The FCC32501ADTP exhibits lower resistance, resulting in reduced voltage drop across the fuse during normal circuit operation. Applications sensitive to voltage drop should account for this parameter difference.

Q: Are both parts RoHS3 compliant?

A: Yes, both FCC32501ADTP and SF-1206S050-2 are RoHS3 compliant with Moisture Sensitivity Level 1 (Unlimited) rating and REACH Unaffected status, meeting current environmental and regulatory requirements.

Q: Which regulatory approvals should be considered for selection?

A: FCC32501ADTP carries CSA, cUL, and UL approvals, while SF-1206S050-2 carries UL approval. Application requirements and regional regulatory frameworks determine which approval scope is necessary.