Equivalent & Substitute Parts for BK/PCH-1-R

Part Overview

The BK/PCH-1-R is a 1 A, 250 V AC / 450 V DC board mount fuse manufactured by Eaton - Electronics Division, part of the PC-Tron® series. This through-hole radial fuse is designed for fast-blow response applications requiring board-level protection in industrial and commercial electronic circuits. The component is currently active in production with 803 pieces in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained, ensuring direct interchangeability without circuit redesign or performance degradation.

Substiute Parts

BK/PCH-1-R

Eaton - Electronics DivisionIn Stock: 899BK/PCH-1-R Datasheet

Current PartRFQ

BK/PCB-1-R

Eaton - Electronics DivisionIn Stock: 4092BK/PCB-1-R Datasheet

Parametric EquivalentRFQ

BK/PCC-1-R

Eaton - Electronics DivisionIn Stock: 6606BK/PCC-1-R Datasheet

Parametric EquivalentRFQ

PCF-1-R

Eaton - Electronics DivisionIn Stock: 773PCF-1-R Datasheet

Parametric EquivalentRFQ

PCH-1-R

Eaton - Electronics DivisionIn Stock: 930PCH-1-R Datasheet

Parametric EquivalentRFQ

7100.1165.13

SCHURTER Inc.In Stock: 9327100.1165.13 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on parameter alignment with the main part BK/PCH-1-R:

Parametric Equivalents (Full Compatibility): Parts BK/PCB-1-R, BK/PCC-1-R, and PCH-1-R are parametric equivalents manufactured by Eaton - Electronics Division. These parts maintain identical electrical specifications (1 A current rating, 250 V AC / 450 V DC voltage ratings, fast-blow response), mechanical configuration (through-hole radial mounting, identical dimensions), breaking capacity (50A AC, 5.9kA DC), and regulatory approvals (CSA, UL). All three parts are ROHS3 compliant and share the same series designation (PC-Tron®). These parts are direct substitutes with no functional or performance differences.

Similar Part (Limited Compatibility): Part 7100.1165.13 manufactured by SCHURTER Inc. is classified as a similar part with restricted substitution applicability. While this part shares the same current rating (1 A), mounting type (through-hole radial), response time (fast-blow), and package style (radial, box), it differs in critical voltage specifications. The SCHURTER part is rated 250 V AC / 250 V DC, whereas the main part is rated 250 V AC / 450 V DC. This voltage rating difference restricts substitution to applications where DC voltage does not exceed 250 V. Additional differences include breaking capacity (63A vs. 50A AC), melting I²t (0.18 vs. 0.02), physical dimensions, and operating temperature range (-40°C ~ 85°C).

Key Parameters Determining Substitution:

• Current Rating (1 A)
• Voltage Rating - AC (250 V minimum)
• Voltage Rating - DC (450 V for full equivalents; 250 V for similar part)
• Response Time (Fast Blow)
• Mounting Type (Through Hole)
• Package / Case (Radial, Box)
• Breaking Capacity @ Rated Voltage
• Melting I²t value

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution (Full Compatibility):

Parts BK/PCB-1-R, BK/PCC-1-R, and PCH-1-R are approved for direct substitution with BK/PCH-1-R in all applications. These Eaton PC-Tron® series fuses maintain identical electrical and mechanical specifications, including 1 A current rating, 250 V AC / 450 V DC voltage ratings, fast-blow response characteristics, and CSA/UL regulatory approvals. All parts are ROHS3 compliant and share identical physical dimensions (0.350" L x 0.184" W x 0.345" H). Selection among these four parts may be based on inventory availability: BK/PCC-1-R (6550 pcs), BK/PCB-1-R (4046 pcs), PCH-1-R (888 pcs), or BK/PCH-1-R (803 pcs).

For Conditional Substitution (Limited Compatibility):

Part 7100.1165.13 (SCHURTER Inc., FRT 250F series) is suitable for substitution only in applications where the DC voltage requirement does not exceed 250 V. This part is not suitable for applications requiring 450 V DC rating. The SCHURTER part differs in physical dimensions (0.453" L x 0.197" W x 0.315" H), melting I²t (0.18 vs. 0.02), and regulatory approval (cURus vs. CSA/UL). The higher breaking capacity (63A vs. 50A AC) and different melting I²t value indicate different thermal response characteristics. This part is ROHS3 compliant and maintains fast-blow response and through-hole radial mounting configuration.

Frequently Asked Questions (FAQ)

Q1: Can BK/PCB-1-R, BK/PCC-1-R, PCF-1-R, and PCH-1-R be used interchangeably with BK/PCH-1-R?

A: Yes. BK/PCB-1-R, BK/PCC-1-R, and PCH-1-R are parametric equivalents with identical electrical and mechanical specifications and are direct substitutes. PCF-1-R is also a parametric equivalent with identical specifications. All four parts are manufactured by Eaton in the PC-Tron® series and share the same 1 A current rating, 250 V AC / 450 V DC voltage ratings, fast-blow response, through-hole radial mounting, and CSA/UL approvals.

Q2: Under what conditions can the SCHURTER 7100.1165.13 be substituted for BK/PCH-1-R?

A: The SCHURTER 7100.1165.13 can be substituted only in applications where the maximum DC voltage does not exceed 250 V. The SCHURTER part is rated 250 V AC / 250 V DC, whereas BK/PCH-1-R is rated 250 V AC / 450 V DC. If your application requires 450 V DC capability, the SCHURTER part is not suitable. The SCHURTER part maintains the same 1 A current rating, fast-blow response, and through-hole radial mounting.

Q3: Are there physical dimension differences between the Eaton parametric equivalents and the SCHURTER similar part?

A: Yes. The Eaton parts (BK/PCH-1-R, BK/PCB-1-R, BK/PCC-1-R, PCF-1-R, and PCH-1-R) all share identical dimensions: 0.350" L x 0.184" W x 0.345" H (8.89mm x 4.67mm x 8.76mm). The SCHURTER 7100.1165.13 has different dimensions: 0.453" L x 0.197" W x 0.315" H (11.50mm x 5.00mm x 8.00mm). These dimension differences may affect PCB layout compatibility and mounting hole spacing.

Q4: What are the regulatory approval differences between substitute parts?

A: All Eaton parts (BK/PCH-1-R, BK/PCB-1-R, BK/PCC-1-R, PCF-1-R, and PCH-1-R) carry CSA and UL approvals. The SCHURTER 7100.1165.13 carries cURus approval. Both approval sets are recognized regulatory certifications; however, your specific application requirements may mandate a particular approval standard.

Q5: How do melting I²t values affect substitution decisions?

A: The Eaton parametric equivalents all have a melting I²t of 0.02, indicating identical thermal response characteristics. The SCHURTER 7100.1165.13 has a melting I²t of 0.18, which is significantly higher. This difference indicates different thermal response behavior and may affect circuit protection timing in applications with specific I²t requirements. The SCHURTER part should not be substituted if the circuit design depends on the 0.02 I²t value.

Q6: Which substitute part should be selected based on inventory availability?

A: If inventory is a consideration, BK/PCC-1-R has the highest stock level (6550 pcs), followed by BK/PCB-1-R (4046 pcs), PCH-1-R (888 pcs), and BK/PCH-1-R (803 pcs). All four Eaton parts are parametric equivalents with identical specifications and are equally suitable for direct substitution.

Q7: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed—BK/PCB-1-R, BK/PCC-1-R, PCF-1-R, PCH-1-R, and 7100.1165.13—are ROHS3 compliant, meeting environmental and hazardous substance restrictions.