Equivalent & Substitute Parts for 5HTP 630-R Ceramic Fuse

Part Overview

The 5HTP 630-R is an active ceramic cartridge fuse manufactured by Bel Fuse Inc., rated for 630 mA at 250 V AC/DC with slow-blow response characteristics. This component is designed for applications requiring overcurrent protection in a compact 5mm x 20mm form factor. Substitute parts are identified based on matching electrical ratings, mechanical dimensions, and functional specifications to ensure direct compatibility in existing circuit designs and holder assemblies.

Substiute Parts

5HTP 630-R

Bel Fuse Inc.In Stock: 16845HTP 630-R Datasheet

Current PartRFQ

5HT 630-R

Bel Fuse Inc.In Stock: 18825HT 630-R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5HTP 630-R are qualified based on the following critical parameters:

• Current Rating: 630 mA (exact match required)
• Voltage Rating: 250 V AC (exact match required)
• Package Dimensions: 5mm x 20mm (exact match required for holder compatibility)
• Fuse Type: Ceramic cartridge with slow-blow response
• Breaking Capacity: 1.5 kA at rated voltage
• Thermal Characteristics: Melting I²t of 0.7 and DC cold resistance of 0.63 Ohms

The identified substitute, 5HT 630-R, meets all these parameters and is therefore electrically and mechanically interchangeable with the main part number.

Parameter Comparison

Engineering Selection Recommendations

Both the 5HTP 630-R and 5HT 630-R are active products from Bel Fuse Inc. with identical electrical and mechanical specifications. Selection between these part numbers may be based on inventory availability, as the 5HT 630-R currently has 1,853 pieces in stock compared to 1,639 pieces for the 5HTP 630-R. Both parts carry equivalent regulatory approvals (CCC, CE, CSA, cULus) and maintain ROHS3 compliance, making them suitable for applications requiring environmental and safety certifications.

Frequently Asked Questions (FAQ)

Q: Can the 5HT 630-R be used as a direct replacement for the 5HTP 630-R?

A: Yes. Both parts are ceramic cartridge fuses with identical current ratings (630 mA), voltage ratings (250 V AC), package dimensions (5mm x 20mm), response characteristics (slow-blow), and thermal properties. They are mechanically and electrically interchangeable in any holder assembly designed for 5mm x 20mm cartridge fuses.

Q: What determines compatibility between these fuse part numbers?

A: Compatibility is determined by matching current rating, voltage rating, package dimensions, fuse type (ceramic cartridge), response time (slow-blow), breaking capacity, and thermal characteristics (melting I²t and DC cold resistance). All these parameters are identical between the 5HTP 630-R and 5HT 630-R.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts carry identical regulatory approvals (CCC, CE, CSA, cULus) and maintain ROHS3 compliance status. They meet the same environmental and safety standards.

Q: What is the significance of the package dimension 5mm x 20mm?

A: The 5mm x 20mm dimension specifies the physical form factor of the ceramic cartridge fuse. This dimension is critical for mechanical compatibility with fuse holder assemblies. Only fuses with matching dimensions can be installed in holders designed for this size.

Q: Can these fuses be used in applications rated for different voltage or current values?

A: No. These fuses are rated specifically for 630 mA at 250 V AC/DC. Using them in applications with different electrical requirements would compromise circuit protection and safety.