Littelfuse 0215004.TXP Ceramic Fuse 4A 250VAC 5x20mm - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0215004.TXP is a ceramic cartridge fuse rated for 4A at 250V AC/DC with a 5x20mm form factor. This slow-blow fuse is designed for applications requiring overcurrent protection in industrial and commercial equipment. The part is active in production with 760 units currently in stock. Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and application-specific requirements where voltage ratings, response characteristics, or approval certifications differ.

Key Parameters

Parameter	Value
Current Rating	4 A
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Ceramic
Package / Case	5mm x 20mm
Response Time	Slow Blow
Breaking Capacity	1.5 kA
Operating Temperature Range	-55°C to 125°C
Mounting Type	Requires Holder
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria are:

Current Rating: 4A (exact match required)
Voltage Rating (AC): 250V (exact match required)
Package / Case: 5mm x 20mm (exact match required)
Fuse Type: Cartridge, Ceramic (exact match required)
Response Time: Slow Blow (preferred for compatibility)
Breaking Capacity: 1.5 kA (preferred for compatibility)

Parametric equivalents from Littelfuse (0215004.HXP, 0215004.MXP, 0215004.VXP) match all core electrical and mechanical specifications identically. Direct manufacturer alternatives from SCHURTER, Bel Fuse, and Eaton meet the same 4A/250V/5x20mm requirements with variations in DC voltage ratings, melting I²t characteristics, and approval certifications. Parts with different response times (medium blow) or reduced breaking capacity represent functional alternatives for specific application requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Current Rating (A)	Voltage AC (V)	Voltage DC (V)	Response Time	Breaking Capacity (kA)	Melting I²t	Package	Inventory (Pcs)
0215004.TXP	Littelfuse Inc.	4	250	—	Slow Blow	1.5	46.96	5x20mm	760
0215004.HXP	Littelfuse Inc.	4	250	—	Slow Blow	1.5	46.96	5x20mm	22918
0215004.MXP	Littelfuse Inc.	4	250	—	Slow Blow	1.5	46.96	5x20mm	16900
0215004.VXP	Littelfuse Inc.	4	250	—	Slow Blow	1.5	46.96	5x20mm	762
0001.2510	SCHURTER Inc.	4	250	150	Slow Blow	1.5	62.4	5x20mm	16466
0034.2522	SCHURTER Inc.	4	250	125	Medium Blow	1.0	35.2	5x20mm	2264
5HT 4-R	Bel Fuse Inc.	4	250	—	Slow Blow	1.5	56	5x20mm	9552
BK/S505-4-R	Eaton - Electronics Division	4	250	—	Slow Blow	1.5	38.45	5x20mm	1708
BK1/S505-4-R	Eaton - Electronics Division	4	250	—	Slow Blow	1.5	38.45	5x20mm	1573
0001.2710.11	SCHURTER Inc.	4	250	150	Slow Blow	1.5	62.4	5x20mm	1571
0659C4000-12	Bel Fuse Inc.	4	250	—	Slow Blow	1.5	51.2	5x20mm	21636

Engineering Selection Recommendations

Littelfuse Parametric Equivalents (0215004.HXP, 0215004.MXP, 0215004.VXP): These parts are direct parametric matches to the 0215004.TXP with identical electrical specifications, response characteristics, and approval certifications. Selection among these variants is based on packaging preference and inventory availability. The 0215004.HXP offers the highest stock level (22,918 units).

SCHURTER Direct Alternatives (0001.2510, 0001.2710.11): These parts meet the 4A/250V/5x20mm core requirements with extended DC voltage ratings (150V). Both maintain slow-blow response and 1.5kA breaking capacity. Approval certifications include CCC, cURus, and VDE. The 0001.2510 provides higher inventory (16,466 units).

SCHURTER Medium-Blow Alternative (0034.2522): This part differs in response time (medium blow) and reduced breaking capacity (1.0kA). Selection requires confirmation that medium-blow response and lower breaking capacity are acceptable for the application. Inventory is limited (2,264 units).

Bel Fuse Alternatives (5HT 4-R, 0659C4000-12): Both parts maintain 4A/250V/5x20mm specifications with slow-blow response and 1.5kA breaking capacity. The 5HT 4-R has slightly higher melting I²t (56 vs. 46.96). The 0659C4000-12 offers the highest inventory among non-Littelfuse options (21,636 units).

Eaton Alternatives (BK/S505-4-R, BK1/S505-4-R): Both parts are electrically and mechanically equivalent with identical slow-blow response and 1.5kA breaking capacity. Approval certifications include BSI, CCC/CQC, CSA, cULus, IMQ, KC, PSE/JET, SEMKO, and VDE. Inventory levels are lower (1,708 and 1,573 units respectively).

Frequently Asked Questions (FAQ)

Q: Can I substitute 0215004.HXP for 0215004.TXP? A: Yes. The 0215004.HXP is a parametric equivalent with identical current rating (4A), voltage rating (250V AC), package (5x20mm), response time (slow blow), and breaking capacity (1.5kA). All approval certifications match.

Q: What is the difference between the SCHURTER 0001.2510 and the Littelfuse 0215004.TXP? A: Both parts are rated 4A at 250V AC in a 5x20mm ceramic cartridge with slow-blow response and 1.5kA breaking capacity. The SCHURTER part adds a 150V DC rating and has a higher melting I²t value (62.4 vs. 46.96). Approval certifications differ slightly.

Q: Can I use the SCHURTER 0034.2522 as a substitute? A: The 0034.2522 meets the 4A/250V/5x20mm mechanical and electrical core requirements but differs in response time (medium blow vs. slow blow) and breaking capacity (1.0kA vs. 1.5kA). Substitution requires confirmation that these differences are acceptable for your application.

Q: Why do some substitute parts have DC voltage ratings when the main part does not? A: DC voltage ratings indicate the part's capability in DC circuits. Parts without specified DC ratings are suitable for AC applications. Parts with DC ratings offer broader application flexibility. Selection depends on whether DC protection is required in your circuit.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant, matching the compliance status of the 0215004.TXP.

Q: Which substitute part has the best inventory availability? A: The Littelfuse 0215004.HXP offers the highest inventory (22,918 units), followed by the Bel Fuse 0659C4000-12 (21,636 units).

Q: Do all substitute parts require a fuse holder? A: Yes. All listed parts are cartridge fuses in 5x20mm form factor and require a compatible holder for installation.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message