Littelfuse 0218.160MXP Equivalent & Substitute Parts

Part Overview

The Littelfuse 0218.160MXP is a 160 mA, 250 V AC/DC slow-blow glass cartridge fuse in a 5mm x 20mm form factor. This component is designed for circuit protection in applications requiring reliable overcurrent protection with delayed response characteristics. The part maintains Active product status with full RoHS3 compliance and multiple international certifications including UL, CE, CSA, and VDE. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Key Parameters

Parameter	Value
Current Rating	160 mA
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Response Time	Slow Blow
Package / Case	5mm x 20mm
Mounting Type	Requires Holder
Operating Temperature Range	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 0218.160MXP is determined by strict equivalence across the following critical parameters:

Current Rating: 160 mA (exact match required)
Voltage Rating: 250 V AC (exact match required)
Package / Case: 5mm x 20mm (exact match required)
Fuse Type: Cartridge, Glass (exact match required)
Response Time: Slow Blow (exact match required)
Mounting Type: Requires Holder (exact match required)

All substitute parts listed meet these mandatory criteria. Variations in secondary parameters such as Breaking Capacity, Melting I²t, DC Cold Resistance, and specific approval agencies do not disqualify substitution when primary electrical and mechanical specifications align.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Current Rating (mA)	Voltage Rating (V AC)	Package	Response Time	Breaking Capacity @ Rated Voltage (A)	Melting I²t	DC Cold Resistance (Ohms)	Operating Temperature	RoHS Status
0218.160MXP	Littelfuse Inc.	218	160	250	5mm x 20mm	Slow Blow	35	0.219	2.55	-55°C ~ 125°C	ROHS3 Compliant
0218.160HXP	Littelfuse Inc.	218	160	250	5mm x 20mm	Slow Blow	35	0.219	2.55	-55°C ~ 125°C	ROHS3 Compliant
0219.160MXAP	Littelfuse Inc.	219XA	160	250	5mm x 20mm	Slow Blow	150	0.31	2.55	-55°C ~ 125°C	ROHS3 Compliant
0034.3109	SCHURTER Inc.	FST 5x20	160	250	5mm x 20mm	Slow Blow	35	0.23	Not Specified	-55°C ~ 125°C	ROHS3 Compliant
5ST 160-R	Bel Fuse Inc.	5ST	160	250	5mm x 20mm	Slow Blow	35	0.08	4.4	-55°C ~ 125°C	ROHS3 Compliant
BK/S506-160-R	Eaton - Electronics Division	S506	160	250	5mm x 20mm	Slow Blow	35	0.093	1.27	Not Specified	ROHS3 Compliant
GDC-160MA	Eaton - Electronics Division	GDC	160	250	5mm x 20mm	Slow Blow	35	0.093	1.27	Not Specified	Not Specified
0034.5609.11	SCHURTER Inc.	SMD-FST	160	250	5mm x 20mm	Slow Blow	35	0.23	Not Specified	-55°C ~ 125°C	ROHS3 Compliant
0034.5705.11	SCHURTER Inc.	SMD-FTT	160	250	5mm x 20mm	Slow Blow	35	1	Not Specified	-55°C ~ 125°C	ROHS3 Compliant
TSD-160MA	OptiFuse	TSD	160	250	5mm x 20mm	Slow Blow	35	0.0767	Not Specified	-55°C ~ 125°C	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and satisfy the mandatory electrical and mechanical specifications for direct substitution with the 0218.160MXP. Selection among equivalents should be based on:

Certification Coverage: The 0218.160MXP carries approvals from CCC, CE, CSA, K-MARK, SEMKO, UL, and VDE. The 0218.160HXP provides identical certification coverage. The 0219.160MXAP omits K-MARK certification. Parts from SCHURTER (0034.3109, 0034.5609.11, 0034.5705.11) carry cURus and VDE certifications. Bel Fuse 5ST 160-R includes CCC, CE, CSA, cURus, IMQ, SEMKO, and VDE. Eaton parts (BK/S506-160-R, GDC-160MA) provide varying certification subsets. Application requirements should dictate certification selection.

Inventory Availability: Current stock levels range from 920 to 3803 units across all substitute options, supporting procurement continuity.

Secondary Parameter Variations: Melting I²t values range from 0.0767 to 1, and DC Cold Resistance varies from 1.27 to 4.4 Ohms where specified. These variations reflect different thermal and electrical characteristics within the slow-blow fuse category and do not affect basic substitution eligibility.

Frequently Asked Questions (FAQ)

Q: Can the 0218.160MXP be directly replaced with any of the listed substitute parts?

A: Yes. All listed parts meet the mandatory substitution criteria: 160 mA current rating, 250 V AC voltage rating, 5mm x 20mm package, glass cartridge type, slow-blow response, and holder-mount configuration. Physical and electrical compatibility is assured.

Q: What is the difference between the 0218.160MXP and 0218.160HXP?

A: Both parts are from Littelfuse Series 218 with identical electrical specifications, package dimensions, and certifications. They are parametric equivalents with no functional distinction for circuit protection applications.

Q: Why does the 0219.160MXAP have a higher Breaking Capacity (150A vs. 35A)?

A: The 0219.160MXAP belongs to the Series 219XA line with enhanced breaking capacity and higher Melting I²t (0.31 vs. 0.219). This represents a different product variant within the Littelfuse portfolio. It remains electrically and mechanically compatible for the specified 160 mA, 250 V application.

Q: Are there differences in approval agencies among substitute parts?

A: Yes. Certification coverage varies by manufacturer and series. The 0218.160MXP and 0218.160HXP carry the broadest certification set (CCC, CE, CSA, K-MARK, SEMKO, UL, VDE). Application-specific regulatory requirements should guide selection when certifications differ.

Q: What does Melting I²t indicate, and why does it vary among substitutes?

A: Melting I²t is a thermal characteristic defining the energy required to melt the fuse element. Variations (0.0767 to 1) reflect different fuse element designs and thermal response profiles within the slow-blow category. All values are compatible with the 160 mA, 250 V specification.

Q: Can I use these fuses in any holder designed for 5mm x 20mm cartridge fuses?

A: Yes. All substitute parts conform to the 5mm x 20mm mechanical standard and are compatible with standard cartridge fuse holders rated for this form factor.

Q: Which substitute offers the best availability?

A: The Bel Fuse 5ST 160-R currently has the highest inventory at 3803 units, followed by the main part 0218.160MXP at 3300 units.

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