SCHURTER 0031.8314 Glass Fuse Cartridge 500mA 250VAC 5x20mm Equivalent & Substitute Parts

Part Overview

The SCHURTER 0031.8314 is a 500mA 250VAC glass fuse cartridge in 5mm x 20mm form factor, designed for surface mount applications requiring a holder. This component is classified as Active product status and serves as a critical protective device in electronic circuits. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical dimensions, and performance characteristics within the OGN-SMD series.

Key Parameters

Parameter	Value
Current Rating	500 mA
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Response Time	Fast Blow
Package / Case	5mm x 20mm w/Holder
Mounting Type	Requires Holder, Surface Mount
Breaking Capacity @ Rated Voltage	35A
Approval Agency	cURus, VDE
Operating Temperature Range	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the SCHURTER 0031.8314 are qualified based on the following criteria:

Matching Parameters (Required for Substitution):

Current Rating: 500 mA
Voltage Rating (AC): 250 V
Fuse Type: Cartridge, Glass
Response Time: Fast Blow
Package / Case: 5mm x 20mm w/Holder
Mounting Type: Requires Holder, Surface Mount
Breaking Capacity @ Rated Voltage: 35A
Approval Agency: cURus, VDE
Operating Temperature Range: -40°C ~ 85°C
RoHS Status: ROHS3 Compliant

Variable Parameter (Allows Substitution Variance):

Melting I²t: Varies across substitute parts (0.151 to 7.9)

All substitute parts maintain identical electrical and mechanical specifications with the main part. Variations in Melting I²t represent different thermal response characteristics within the fast-blow classification and do not affect interchangeability for standard circuit protection applications.

Parameter Comparison

Part Number	Manufacturer	Current Rating	Voltage Rating (AC)	Fuse Type	Response Time	Package / Case	Breaking Capacity	Melting I²t	Inventory (Pcs)	Product Status
0031.8314	SCHURTER Inc.	500 mA	250 V	Cartridge, Glass	Fast Blow	5mm x 20mm w/Holder	35A	3	1322	Active
0031.8364	SCHURTER Inc.	500 mA	250 V	Cartridge, Glass	Fast Blow	5mm x 20mm w/Holder	35A	3	1009	Active
0031.8413	SCHURTER Inc.	500 mA	250 V	Cartridge, Glass	Fast Blow	5mm x 20mm w/Holder	35A	0.151	1038	Active
0031.8463	SCHURTER Inc.	500 mA	250 V	Cartridge, Glass	Fast Blow	5mm x 20mm w/Holder	35A	0.151	1246	Active
0031.8510	SCHURTER Inc.	500 mA	250 V	Cartridge, Glass	Fast Blow	5mm x 20mm w/Holder	35A	7.9	1221	Active
0031.8560	SCHURTER Inc.	500 mA	250 V	Cartridge, Glass	Fast Blow	5mm x 20mm w/Holder	35A	7.9	1282	Active

Engineering Selection Recommendations

All substitute parts listed are Active product status components manufactured by SCHURTER Inc. and carry identical regulatory approvals (cURus, VDE) and compliance certifications (ROHS3 Compliant, REACH Unaffected). Selection among these parts is determined by application-specific thermal response requirements, as indicated by Melting I²t values:

Melting I²t = 0.151: Parts 0031.8413 and 0031.8463 provide the fastest thermal response
Melting I²t = 3: Parts 0031.8314 and 0031.8364 provide moderate thermal response
Melting I²t = 7.9: Parts 0031.8510 and 0031.8560 provide the slowest thermal response

All parts maintain the same electrical ratings (500mA, 250VAC), mechanical form factor (5mm x 20mm), and breaking capacity (35A), ensuring direct interchangeability within the specified thermal response class.

Frequently Asked Questions (FAQ)

Q: Can I substitute 0031.8314 with any of the listed equivalent parts?

A: Yes. All listed parts are direct substitutes provided the application thermal response requirement matches the Melting I²t specification. Verify your circuit design specifies the thermal response class before selection.

Q: What is the significance of Melting I²t variation among substitute parts?

A: Melting I²t defines the thermal energy required to melt the fuse element. Lower values (0.151) indicate faster response to overcurrent; higher values (7.9) indicate slower response. All variants maintain fast-blow classification and 500mA current rating.

Q: Are all substitute parts surface mount compatible?

A: Yes. All parts require a surface mount holder and are packaged in 5mm x 20mm form factor with identical mounting specifications.

Q: Do all substitute parts carry the same regulatory approvals?

A: Yes. All parts are approved by cURus and VDE, ROHS3 Compliant, and REACH Unaffected, ensuring equivalent compliance for regulated applications.

Q: What is the difference between 0031.8314 and 0031.8364 if Melting I²t is identical?

A: Both parts share identical electrical, mechanical, and thermal specifications. Differences are internal manufacturing variants within the same performance class. Both are interchangeable.

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