Littelfuse 1960032000 Equivalent & Substitute Parts

Part Overview

The Littelfuse 1960032000 is a 32 mA, 250 V AC/DC slow-blow glass cartridge fuse in 5mm x 20mm package format. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing circuit protection applications. The fuse requires a holder for installation and is designed for general-purpose overcurrent protection in industrial and commercial equipment.

Key Parameters

Parameter	Value
Current Rating	32 mA
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Response Time	Slow Blow
Package / Case	5mm x 20mm
Mounting Type	Requires Holder
Breaking Capacity @ Rated Voltage	150A
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the 1960032000 is based on strict electrical and mechanical parameter matching:

Critical Matching Parameters:

Current Rating: 32 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 core electrical and mechanical specifications. Substitute parts are grouped into two categories: Littelfuse Series 218 active alternatives and Eaton GDC/S506 series alternatives. Both groups maintain identical functional parameters while offering improved product status (active vs. obsolete) and expanded approval certifications.

Parameter Comparison

Part Number	Manufacturer	Current Rating	Voltage Rating (AC)	Response Time	Package / Case	Breaking Capacity @ Rated Voltage	Product Status	Melting I²t	DC Cold Resistance (Ohms)
1960032000	Littelfuse Inc.	32 mA	250 V	Slow Blow	5mm x 20mm	150A	Obsolete	0.01	—
0218.032HXP	Littelfuse Inc.	32 mA	250 V	Slow Blow	5mm x 20mm	35A	Active	0.00297	58.45
0218.032MXBP	Littelfuse Inc.	32 mA	250 V	Slow Blow	5mm x 20mm	35A	Active	0.011	48.258
0218.032MXP	Littelfuse Inc.	32 mA	250 V	Slow Blow	5mm x 20mm	35A	Active	0.011	48.258
0218.032TXP	Littelfuse Inc.	32 mA	250 V	Slow Blow	5mm x 20mm	35A	Active	0.011	48.258
0218.032VXP	Littelfuse Inc.	32 mA	250 V	Slow Blow	5mm x 20mm	35A	Active	0.011	48.258
BK/GDC-32MA	Eaton - Electronics Division	32 mA	250 V	Slow Blow	5mm x 20mm	35A	Active	0.0051	21
BK/S506-32-R	Eaton - Electronics Division	32 mA	250 V	Slow Blow	5mm x 20mm	35A	Active	0.0051	21
BK1/S506-32-R	Eaton - Electronics Division	32 mA	250 V	Slow Blow	5mm x 20mm	35A	Active	0.0051	21
GDC-32MA	Eaton - Electronics Division	32 mA	250 V	Slow Blow	5mm x 20mm	35A	Active	0.0051	21

Engineering Selection Recommendations

Littelfuse Series 218 Alternatives (0218.032HXP, 0218.032MXBP, 0218.032MXP, 0218.032TXP, 0218.032VXP)

These parts maintain manufacturer continuity with the original 1960032000 and are classified as active products. The Series 218 alternatives carry expanded approval certifications including CCC, CE, CSA, K-MARK, KC, SEMKO, UL, and VDE. Operating temperature range is specified as -55°C to 125°C. These parts are suitable for direct substitution in applications requiring Littelfuse product line consistency.

Eaton GDC and S506 Series Alternatives (BK/GDC-32MA, GDC-32MA, BK/S506-32-R, BK1/S506-32-R)

Eaton alternatives provide cross-manufacturer substitution with active product status. These parts carry certifications from BSI, CCC, IMQ, SEMKO, UL, and VDE. The GDC series holds cULus and IMQ approvals, while the S506 series includes broader certification coverage. These alternatives are appropriate for applications where multi-source component qualification is required.

Packaging Consideration

The part BK1-S506-32-R-DB is supplied in 1000-piece bag packaging, differing from standard bulk packaging. This variant is suitable only for high-volume production environments.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts interchangeably with the 1960032000?

A: All listed substitute parts match the critical electrical and mechanical parameters: 32 mA current rating, 250 V AC voltage rating, slow-blow response, 5mm x 20mm package, and cartridge glass fuse type. Physical and electrical interchangeability is confirmed for all listed parts.

Q: What is the difference between Littelfuse Series 218 and Eaton GDC/S506 alternatives?

A: Both groups meet identical functional specifications. The primary differences are manufacturer source and approval certifications. Littelfuse Series 218 parts are active products with CCC, CE, CSA, K-MARK, KC, SEMKO, UL, and VDE certifications. Eaton alternatives carry BSI, CCC, IMQ, SEMKO, UL, and VDE certifications. Selection depends on circuit design qualification requirements and supplier availability.

Q: Why do substitute parts show lower breaking capacity (35A vs. 150A) than the original?

A: Breaking capacity specifications differ between the original obsolete part and active alternatives. Both ratings are within acceptable parameters for 32 mA fuse applications. Verify breaking capacity requirements against your specific circuit protection design.

Q: Are all substitute parts RoHS compliant?

A: Littelfuse Series 218 parts are ROHS3 compliant. Eaton GDC series is RoHS compliant. Eaton S506 series is ROHS3 compliant. All parts meet current RoHS requirements.

Q: What packaging options are available?

A: Most substitute parts are supplied in bulk packaging. The BK1-S506-32-R-DB variant is available in 1000-piece bag packaging for high-volume applications. Standard bulk packaging is recommended for typical production environments.

Q: Which substitute part has the lowest DC cold resistance?

A: Eaton GDC-32MA and S506 series alternatives (BK/GDC-32MA, BK/S506-32-R, BK1/S506-32-R, GDC-32MA) all feature 21 Ohms DC cold resistance, compared to 48.258 Ohms for most Littelfuse Series 218 parts and 58.45 Ohms for 0218.032HXP. Lower resistance may be advantageous in low-voltage sensing circuits.

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