TR/PCB-1-1/2-R Equivalent & Substitute Parts

Part Overview

The TR/PCB-1-1/2-R is a board mount fuse manufactured by Eaton - Electronics Division, rated at 1.5 A with 250 V AC and 450 V DC voltage ratings. This through-hole radial fuse is designed for fast-blow response applications and is part of the PC-Tron® series. The product maintains active status with 659 pieces in current inventory.

Substitute parts are identified when equivalent electrical and mechanical parameters align within the allowed specifications for board mount fuse applications, enabling component interchangeability in circuit designs where voltage and current ratings are compatible.

Substiute Parts

TR/PCB-1-1/2-R

Eaton - Electronics DivisionIn Stock: 760TR/PCB-1-1/2-R Datasheet

Current PartRFQ

0698Q1500-02

Bel Fuse Inc.In Stock: 19850698Q1500-02 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TR/PCB-1-1/2-R is determined by the following critical parameters:

Current Rating Match: The substitute part must maintain the same 1.5 A current rating to ensure identical overcurrent protection characteristics.

Voltage Rating Compatibility: The substitute part must support voltage ratings equal to or greater than the original part's 250 V AC and 450 V DC specifications. The identified substitute (0698Q1500-02) provides 350 V AC and 140 V DC ratings. The AC rating exceeds the original specification; however, the DC rating of 140 V is lower than the original 450 V DC rating, which restricts substitution to applications where DC voltage does not exceed 140 V.

Response Time: Fast-blow response time must be maintained for consistent circuit protection behavior.

Mounting and Package Compatibility: Both parts utilize through-hole radial, box-style packaging suitable for board mount applications without cartridge-style exclusions.

Regulatory Compliance: Both parts maintain ROHS3 compliance and active product status, ensuring current manufacturing and supply chain availability.

Parameter Comparison

Engineering Selection Recommendations

Primary Application (TR/PCB-1-1/2-R): Select the original Eaton TR/PCB-1-1/2-R for applications requiring 450 V DC voltage rating or where the full 250 V AC / 450 V DC specification envelope is mandatory. This part carries CSA and UL approvals and maintains active inventory status.

Conditional Substitution (0698Q1500-02): The Bel Fuse Inc. 0698Q1500-02 is suitable as a substitute only in applications where the circuit operates at DC voltages not exceeding 140 V. This part provides higher AC voltage rating (350 V) and superior breaking capacity (100A AC, 150A DC). The substitute carries AEC-Q200, CE, and cURus certifications, with defined operating temperature range (-55°C ~ 125°C). The higher melting I²t value (0.64 versus 0.09) indicates different thermal response characteristics and must be evaluated against circuit protection requirements.

Inventory Consideration: The substitute part (0698Q1500-02) has higher inventory availability (1,928 pieces) compared to the original part (659 pieces).

Frequently Asked Questions (FAQ)

Q: Can the 0698Q1500-02 replace the TR/PCB-1-1/2-R in all applications?

A: No. The 0698Q1500-02 has a maximum DC voltage rating of 140 V, while the TR/PCB-1-1/2-R is rated for 450 V DC. Substitution is only valid for circuits operating at DC voltages of 140 V or lower. For applications requiring the full 450 V DC rating, the original part must be used.

Q: What is the significance of the different melting I²t values?

A: The melting I²t value (0.09 for TR/PCB-1-1/2-R versus 0.64 for 0698Q1500-02) indicates the thermal energy required to melt the fuse element. The substitute part requires significantly more thermal energy to operate, which affects the time-current characteristic curve and may alter circuit protection timing in sensitive applications.

Q: Are both parts physically interchangeable on the PCB?

A: Both parts use through-hole radial, box-style packaging. However, the substitute part has slightly smaller dimensions (0.329" L x 0.157" W x 0.303" H versus 0.350" L x 0.184" W x 0.345" H). Physical fit should be verified in the specific PCB layout, though the smaller size typically presents no mounting obstacles.

Q: Which certifications apply to each part?

A: The TR/PCB-1-1/2-R carries CSA and UL approvals. The 0698Q1500-02 carries AEC-Q200, CE, and cURus certifications. Both parts are ROHS3 compliant. Application requirements may dictate which certification set is necessary.

Q: What is the current rating match requirement?

A: Both parts are rated at 1.5 A. This current rating must remain constant for proper circuit protection. Substitution with parts having different current ratings is not permitted.

Q: Does the substitute part have a defined operating temperature range?

A: Yes. The 0698Q1500-02 operates from -55°C to 125°C. The original TR/PCB-1-1/2-R does not specify an operating temperature range in the provided data. Temperature requirements of the application must be verified against the substitute part's specification.