Littelfuse 0217002.TXP Glass Cartridge Fuse 2A 250VAC 5x20mm Equivalent & Substitute Parts

Part Overview

The Littelfuse 0217002.TXP is a 2A 250VAC fast-blow glass cartridge fuse in 5x20mm form factor, designed for circuit protection in AC and DC applications. This component requires a fuse holder for installation and is classified as Active product status. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical dimensions, and performance characteristics to ensure direct functional replacement in circuit protection applications.

Key Parameters

Parameter	Value
Current Rating	2 A
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Response Time	Fast Blow
Package / Case	5mm x 20mm
Breaking Capacity @ Rated Voltage	35A
Melting I²t	5.73
Operating Temperature Range	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts are classified into three categories based on substitution relationship type and electrical compatibility:

Parametric Equivalents (Littelfuse Series 217 & 235): Parts 0217002.HXP, 0217002.MXP, 0235002.HXP, 0235002.MXP, and 0235002.VXP share identical current rating (2A), voltage rating (250V AC), response time (Fast Blow), and mechanical dimensions (5x20mm). Series 217 variants maintain the same breaking capacity (35A) and melting I²t (5.73) as the main part. Series 235 variants feature increased breaking capacity (100A) and reduced melting I²t (2.645), suitable for applications requiring higher fault current handling.

Direct Manufacturer Equivalent (SCHURTER 0034.1519): Matches all critical electrical parameters including 2A current rating, 250V AC voltage, fast-blow response, and 5x20mm dimensions. Breaking capacity (35A) and melting I²t (5.28) are comparable to the main part, with equivalent approval certifications for industrial applications.

MFR Recommended Substitutes (Bel Fuse & Eaton): Parts 5MF 2-R, 5SF 2-R, BK/GDB-2A, and BK/GMA-2-R are manufacturer-recommended alternatives from established fuse suppliers. All maintain 2A current rating, 250V AC voltage, fast-blow response, and 5x20mm mechanical compatibility. Variations in breaking capacity (35A to 200A) and melting I²t (3.1 to 6.4) reflect different circuit protection profiles for specific application requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Current Rating (A)	Voltage Rating (V AC)	Response Time	Package (mm)	Breaking Capacity (A)	Melting I²t	DC Cold Resistance (Ω)	Operating Temp (°C)	RoHS Status
0217002.TXP	Littelfuse Inc.	2	250	Fast Blow	5x20	35	5.73	0.0416	-55 ~ 125	ROHS3
0217002.HXP	Littelfuse Inc.	2	250	Fast Blow	5x20	35	5.73	0.0416	-55 ~ 125	ROHS3
0217002.MXP	Littelfuse Inc.	2	250	Fast Blow	5x20	35	5.73	0.0416	-55 ~ 125	ROHS3
0235002.HXP	Littelfuse Inc.	2	250	Fast Blow	5x20	100	2.645	0.0603	-55 ~ 125	ROHS3
0235002.MXP	Littelfuse Inc.	2	250	Fast Blow	5x20	100	2.645	0.0603	-55 ~ 125	ROHS3
0235002.VXP	Littelfuse Inc.	2	250	Fast Blow	5x20	100	2.645	0.0603	-55 ~ 125	ROHS3
0034.1519	SCHURTER Inc.	2	250	Fast Blow	5x20	35	5.28	—	-55 ~ 125	ROHS3
5MF 2-R	Bel Fuse Inc.	2	250	Fast Blow	5x20	200	4.4	0.046	-55 ~ 125	ROHS3
5SF 2-R	Bel Fuse Inc.	2	250	Fast Blow	5x20	35	6.4	0.036	-55 ~ 125	ROHS3
BK/GDB-2A	Eaton - Electronics Division	2	250	Fast Blow	5x20	35	4.2	0.043	—	ROHS3
BK/GMA-2-R	Eaton - Electronics Division	2	250	Fast Blow	5x20	100	3.1	0.066	—	ROHS3

Engineering Selection Recommendations

Direct Replacement (No Application Modification Required): Littelfuse 0217002.HXP and 0217002.MXP provide identical electrical and mechanical specifications to the main part 0217002.TXP. Both maintain 35A breaking capacity and 5.73 melting I²t, ensuring equivalent circuit protection performance. SCHURTER 0034.1519 offers comparable performance with 35A breaking capacity and 5.28 melting I²t, suitable for applications with identical fault current requirements.

Higher Breaking Capacity Applications: Littelfuse Series 235 variants (0235002.HXP, 0235002.MXP, 0235002.VXP) and Bel Fuse 5MF 2-R provide increased breaking capacity (100A and 200A respectively) while maintaining 2A current rating and 250V AC voltage. These are appropriate for circuits with higher available fault currents. Eaton BK/GMA-2-R similarly offers 100A breaking capacity for enhanced fault current handling.

Equivalent Performance Alternatives: Bel Fuse 5SF 2-R and Eaton BK/GDB-2A maintain 35A breaking capacity comparable to the main part, with melting I²t values (6.4 and 4.2 respectively) within the operational range of fast-blow fuses. All substitute parts listed are Active product status with ROHS3 compliance, ensuring current manufacturing availability and environmental regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can Littelfuse Series 217 and Series 235 fuses be used interchangeably? A: Both series maintain identical current rating (2A), voltage rating (250V AC), response time (fast-blow), and mechanical dimensions (5x20mm). Series 235 variants feature higher breaking capacity (100A vs. 35A) and lower melting I²t (2.645 vs. 5.73). Selection depends on circuit fault current requirements. Higher breaking capacity does not affect normal operation but provides enhanced protection in high-fault-current environments.

Q: What is the significance of melting I²t in fuse selection? A: Melting I²t defines the thermal energy required to melt the fuse element. Lower I²t values indicate faster response to overcurrent conditions. The main part (5.73) and substitutes range from 2.645 to 6.4. Selection must match the circuit's thermal protection requirements. Substitutes with different I²t values alter the fuse's response characteristics and must be evaluated for circuit compatibility.

Q: Are all substitute parts mechanically compatible with existing fuse holders? A: All listed substitutes maintain the 5x20mm form factor and require a fuse holder for installation, matching the main part's mechanical requirements. Dimensional variations exist (5.10mm vs. 5.20mm diameter for Bel Fuse products), but these remain within standard fuse holder tolerances for 5x20mm cartridge fuses.

Q: Which substitute parts have the broadest approval certifications? A: Littelfuse 0217002.TXP and 0217002.MXP carry the most comprehensive certifications (BSI, CE, CCC, CSA, KC, PSE, SEMKO, UR, VDE). Bel Fuse 5SF 2-R includes CCC, CE, CSA, cURus, IMQ, SEMKO, and VDE certifications. Application-specific regulatory requirements determine appropriate certification selection.

Q: Can higher breaking capacity fuses be used as direct replacements? A: Yes, higher breaking capacity fuses (100A or 200A) are direct mechanical and electrical replacements for 35A breaking capacity fuses in the same current and voltage rating. The higher breaking capacity provides additional protection margin in circuits with higher available fault currents without affecting normal operation at rated current.

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