Littelfuse 0216.050H Ceramic Fuse 50mA 250VAC 5x20mm Equivalent & Substitute Parts

Part Overview

The Littelfuse 0216.050H is a 50mA 250V AC/DC ceramic cartridge fuse in 5mm x 20mm form factor with fast-blow response characteristics. This part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for direct substitution in existing designs and applications.

Key Parameters

Parameter	Value
Current Rating	50 mA
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Ceramic
Response Time	Fast Blow
Package / Case	5mm x 20mm
Breaking Capacity @ Rated Voltage	1.5kA
Mounting Type	Requires Holder
Operating Temperature Range	-55°C ~ 125°C
Size / Dimension	0.205" Dia x 0.787" L (5.20mm x 20.00mm)

Substitute Part Grouping Explanation

Substitution of the 0216.050H is determined by strict equivalence across the following critical parameters:

Current Rating: 50 mA (exact match required)
Voltage Rating: 250 V AC (exact match required)
Fuse Type: Cartridge, Ceramic (exact match required)
Response Time: Fast Blow (exact match required)
Package / Case: 5mm x 20mm (exact match required)
Breaking Capacity: 1.5kA (exact match required)
Mounting Type: Requires Holder (exact match required)

All substitute parts listed below meet these criteria. Littelfuse 216 series parts (0216.050HXP, 0216.050MXGP, 0216.050MXP, 0216.050TXP, 0216.050VXP) are parametric equivalents with active product status. Eaton GDA and S501 series parts (GDA-50MA, BK/GDA-50MA, S501-50-R, BK/S501-50-R, BK1/S501-50-R) are manufacturer-recommended alternatives from a different supplier that maintain identical electrical and mechanical specifications.

Parameter Comparison

Part Number	Manufacturer	Current Rating	Voltage Rating (AC)	Fuse Type	Response Time	Package / Case	Breaking Capacity	Product Status	RoHS Status
0216.050H	Littelfuse Inc.	50 mA	250 V	Cartridge, Ceramic	Fast Blow	5mm x 20mm	1.5kA	Obsolete	RoHS non-compliant
0216.050HXP	Littelfuse Inc.	50 mA	250 V	Cartridge, Ceramic	Fast Blow	5mm x 20mm	1.5kA	Active	ROHS3 Compliant
0216.050MXGP	Littelfuse Inc.	50 mA	250 V	Cartridge, Ceramic	Fast Blow	5mm x 20mm	1.5kA	Active	ROHS3 Compliant
0216.050MXP	Littelfuse Inc.	50 mA	250 V	Cartridge, Ceramic	Fast Blow	5mm x 20mm	1.5kA	Active	ROHS3 Compliant
0216.050TXP	Littelfuse Inc.	50 mA	250 V	Cartridge, Ceramic	Fast Blow	5mm x 20mm	1.5kA	Active	ROHS3 Compliant
0216.050VXP	Littelfuse Inc.	50 mA	250 V	Cartridge, Ceramic	Fast Blow	5mm x 20mm	1.5kA	Active	ROHS3 Compliant
GDA-50MA	Eaton - Electronics Division	50 mA	250 V	Cartridge, Ceramic	Fast Blow	5mm x 20mm	1.5kA	Active	RoHS Compliant
BK/GDA-50MA	Eaton - Electronics Division	50 mA	250 V	Cartridge, Ceramic	Fast Blow	5mm x 20mm	1.5kA	Active	RoHS Compliant
S501-50-R	Eaton - Electronics Division	50 mA	250 V	Cartridge, Ceramic	Fast Blow	5mm x 20mm	1.5kA	Active	ROHS3 Compliant
BK/S501-50-R	Eaton - Electronics Division	50 mA	250 V	Cartridge, Ceramic	Fast Blow	5mm x 20mm	1.5kA	Active	RoHS Compliant
BK1/S501-50-R	Eaton - Electronics Division	50 mA	250 V	Cartridge, Ceramic	Fast Blow	5mm x 20mm	1.5kA	Active	RoHS Compliant

Engineering Selection Recommendations

For applications requiring direct replacement of the obsolete 0216.050H, the Littelfuse 216 series active alternatives (0216.050HXP, 0216.050MXGP, 0216.050MXP, 0216.050TXP, 0216.050VXP) provide continuity within the original manufacturer's product line. These parts maintain identical electrical and mechanical specifications while offering ROHS3 compliance status.

Eaton GDA and S501 series alternatives (GDA-50MA, BK/GDA-50MA, S501-50-R, BK/S501-50-R, BK1/S501-50-R) are functionally equivalent substitutes with active product status and RoHS compliance. Selection between Littelfuse and Eaton alternatives depends on supply chain requirements, certification scope, and design qualification history. All listed substitutes carry equivalent approval agency certifications including CCC, CSA, and SEMKO.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 0216.050H with any of the listed alternatives?

A: Yes. All listed parts meet identical electrical and mechanical specifications: 50mA current rating, 250V AC voltage rating, fast-blow response, 5mm x 20mm ceramic cartridge form factor, and 1.5kA breaking capacity. Physical dimensions and holder compatibility are identical.

Q: What is the difference between Littelfuse 216 series and Eaton GDA/S501 series substitutes?

A: Both series meet the same electrical and mechanical requirements. Littelfuse 216 series parts maintain continuity with the original manufacturer. Eaton alternatives provide equivalent functionality with different approval agency certifications and DC cold resistance specifications (157.5 Ohms for Eaton versus 15.9 Ohms for Littelfuse). Selection depends on design qualification and supply chain strategy.

Q: Are all substitutes RoHS compliant?

A: Littelfuse 216 series active alternatives are ROHS3 compliant. Eaton GDA and S501 series parts are RoHS compliant. The original 0216.050H is RoHS non-compliant.

Q: Does the 5mm x 20mm package dimension apply to all substitutes?

A: Yes. All substitute parts use the identical 5mm x 20mm ceramic cartridge form factor and require the same holder type. Physical interchangeability is confirmed.

Q: What approval agencies certify these fuses?

A: All substitutes carry certifications from CCC, CSA, and SEMKO. Eaton S501 series additionally includes BSI, cULus, IMQ, and VDE certifications. Littelfuse 216 series includes VDE and UR certifications. Specific certification requirements should be confirmed against design specifications.

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