SCHURTER 7022.0010 Ceramic Fuse Cartridge - Equivalent & Substitute Parts

Part Overview

The SCHURTER 7022.0010 is a 125 mA, 380 V AC ceramic fuse cartridge designed for fast-blow applications in 3AB and 3AG holder configurations. This part is classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations. The ceramic construction and fast-blow response time provide protection in circuits requiring rapid fault isolation.

Substiute Parts

7022.0010

SCHURTER Inc.In Stock: 10987022.0010 Datasheet

Current PartRFQ

7022.0510

SCHURTER Inc.In Stock: 12257022.0510 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for ceramic fuse cartridges is determined by strict alignment of electrical and mechanical parameters. The following criteria establish valid substitution:

Critical Parameters for Substitution:

• Current Rating (Amps): Must match exactly at 125 mA
• Fuse Type: Must be Cartridge, Ceramic
• Response Time: Must be Fast Blow
• Package / Case: Must be 3AB, 3AG, 1/4" x 1-1/4"
• Mounting Type: Must require the same holder configuration
• Size / Dimension: Must be 0.250" Dia x 1.252" L (6.35mm x 31.80mm)
• Breaking Capacity @ Rated Voltage: Must be 150 kA
• Melting I²t: Must be 0.0033

Allowable Variation:

• Voltage Rating - AC: May be equal to or greater than the original 380 V rating, provided the substitute maintains all other electrical and mechanical specifications

The SCHURTER 7022.0510 qualifies as a direct substitute based on these criteria. It maintains identical current rating, fuse type, response time, package configuration, breaking capacity, and thermal characteristics while providing an elevated voltage rating of 500 V AC, which is compatible with 380 V AC applications.

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER 7022.0510 is the qualified substitute for the obsolete 7022.0010. Selection is based on the following engineering factors:

Product Status Consideration: The 7022.0010 is obsolete, while the 7022.0510 maintains active product status with current manufacturing availability (1168 pcs in stock versus 991 pcs for the obsolete part).

Electrical Compatibility: The 7022.0510 maintains identical current rating (125 mA), response time (Fast Blow), and breaking capacity (150 kA). The increased voltage rating of 500 V AC is compatible with 380 V AC circuit applications, as the substitute can safely operate at lower voltages than its rated maximum.

Mechanical Compatibility: Both parts share identical package configuration (3AB, 3AG), physical dimensions (0.250" Dia x 1.252" L), and thermal characteristics (Melting I²t of 0.0033), ensuring direct mechanical and thermal interchangeability in existing holder assemblies.

Compliance Alignment: Both parts are ROHS3 compliant and carry recognized safety certifications (UL for the original, UR for the substitute), meeting regulatory requirements for electronic component substitution.

Frequently Asked Questions (FAQ)

Q: Can the 7022.0510 be used as a direct replacement for the 7022.0010 in existing circuits?

A: Yes. The 7022.0510 is electrically and mechanically compatible. It maintains the same current rating (125 mA), response time (Fast Blow), breaking capacity (150 kA), and physical dimensions. The higher voltage rating (500 V vs. 380 V) does not prevent operation in 380 V AC circuits.

Q: Why does the substitute have a higher voltage rating?

A: The 7022.0510 is rated for 500 V AC, while the original is rated for 380 V AC. A higher voltage rating indicates the component can safely operate at voltages up to that maximum. This does not affect performance in lower-voltage applications.

Q: Are the physical dimensions identical between the two parts?

A: Yes. Both parts measure 0.250" Dia x 1.252" L (6.35mm x 31.80mm) and use the same 3AB and 3AG holder configuration, ensuring mechanical interchangeability.

Q: What is the significance of the Melting I²t value?

A: The Melting I²t of 0.0033 is identical for both parts and defines the thermal energy required to melt the fuse element. This ensures identical thermal response characteristics and protection behavior in the circuit.

Q: Does the substitute meet the same safety standards?

A: Both parts are ROHS3 compliant. The original carries UL certification, while the substitute carries UR certification. Both represent recognized safety approvals suitable for component substitution.

Q: Is the 7022.0510 currently available?

A: Yes. The 7022.0510 is classified as Active product status with 1168 pcs in stock, compared to the obsolete 7022.0010 with 991 pcs remaining inventory.