BK/HTC-70M Equivalent & Substitute Parts

Part Overview

The BK/HTC-70M is a cartridge fuse holder manufactured by Eaton - Electronics Division, rated for 10 A at 250V with panel mount configuration. This component is designed for single-circuit applications using 5mm x 20mm cartridge fuses with solder lug termination. The product is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure component availability for new production and field service applications.

Substiute Parts

BK/HTC-70M

Eaton - Electronics DivisionIn Stock: 1093BK/HTC-70M Datasheet

Current PartRFQ

BK/HTB-32M-R

Eaton - Electronics DivisionIn Stock: 3321BK/HTB-32M-R Datasheet

SimilarRFQ

HTB-32M-R

Eaton - Electronics DivisionIn Stock: 1028HTB-32M-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BK/HTC-70M is based on the following critical parameters that must remain constant across equivalent components:

Fixed Parameters (Non-Negotiable):

• Fuse size: 5mm x 20mm cartridge format
• Voltage rating: 250V
• Number of circuits: 1
• Mounting type: Panel mount
• Fuseholder type: Holder
• Moisture sensitivity level: 1 (Unlimited)

Variable Parameters (Allowable Differences):

• Current rating: The substitute BK/HTB-32M-R and HTB-32M-R are rated at 16 A, exceeding the original 10 A specification. Higher current-rated holders are functionally compatible when the circuit design permits.
• Termination style: The substitutes employ Quick Connect - 0.187" (4.7mm) termination instead of solder lug, requiring circuit board redesign or adapter consideration.
• Product status: Transition from obsolete to active product status.
• RoHS compliance: Substitutes meet RoHS3 or RoHS compliance standards.

Parameter Comparison

Engineering Selection Recommendations

BK/HTB-32M-R and HTB-32M-R are the active equivalent alternatives to the obsolete BK/HTC-70M. Both substitute parts are manufactured by Eaton - Electronics Division and maintain compatibility across all critical mechanical and electrical parameters: 5mm x 20mm cartridge fuse format, 250V voltage rating, single-circuit configuration, and panel mount installation.

The substitutes carry higher current ratings (16 A versus 10 A), which is acceptable in applications where circuit protection requirements do not exceed the original 10 A specification. The increased current capacity provides design flexibility without compromising safety when properly integrated into the circuit protection scheme.

Both BK/HTB-32M-R and HTB-32M-R are active products with current manufacturing status and compliance certifications. BK/HTB-32M-R carries ROHS3 compliance, while HTB-32M-R carries RoHS compliance. Both are REACH unaffected or compliant, supporting regulatory requirements for new designs and production.

The primary design consideration is termination style: the substitutes employ Quick Connect - 0.187" (4.7mm) termination rather than solder lug. Circuit board layout and connection methodology must accommodate this termination change during integration.

Frequently Asked Questions (FAQ)

Q: Can BK/HTB-32M-R or HTB-32M-R be used as direct replacements for BK/HTC-70M?

A: Both substitute parts are mechanically and electrically compatible for the same fuse cartridge format (5mm x 20mm), voltage rating (250V), and mounting configuration (panel mount). The primary integration consideration is termination style: substitutes use Quick Connect termination instead of solder lug, requiring circuit board connection modification.

Q: What is the difference between BK/HTB-32M-R and HTB-32M-R?

A: Both parts are identical in electrical and mechanical specifications. The primary difference is the manufacturer part number prefix: BK/HTB-32M-R includes the "BK/" designation, while HTB-32M-R does not. Both are manufactured by Eaton - Electronics Division and are active products with equivalent performance characteristics.

Q: Why do the substitute parts have a higher current rating (16 A) than the original (10 A)?

A: The substitute parts are rated for 16 A maximum current capacity. This higher rating does not prevent their use in 10 A applications; the circuit protection scheme determines the actual fuse amperage installed in the holder. The holder's 16 A rating indicates its mechanical and thermal capability, not a requirement to operate at that level.

Q: Are there compliance or regulatory differences between the substitute parts?

A: BK/HTB-32M-R carries ROHS3 compliance certification, while HTB-32M-R carries RoHS compliance certification. Both are REACH compliant or unaffected. Both parts share the same ECCN (EAR99) and HTSUS (8538.90.8180) classifications as the original BK/HTC-70M.

Q: What packaging is available for the substitute parts?

A: Both BK/HTB-32M-R and HTB-32M-R are supplied in bulk packaging. Inventory availability is 3239 units for BK/HTB-32M-R and 963 units for HTB-32M-R.

Q: Can the solder lug termination of the original part be retained with the substitute?

A: The substitute parts are specified with Quick Connect - 0.187" (4.7mm) termination. Termination style is a fixed characteristic of each part number and cannot be modified. Circuit board design must accommodate the Quick Connect termination standard.