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Littelfuse 0230.750DRT2P Equivalent & Substitute Parts
Part Overview
The Littelfuse 0230.750DRT2P is a 750 mA, 250 V AC / 125 V DC glass cartridge fuse with slow-blow response characteristics. This Through Hole mounted component is designed for circuit protection applications requiring non-standard axial cartridge form factors. The part maintains Active product status with full compliance to CE, CSA, and UL approval agencies. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to packaging availability, inventory constraints, or design flexibility needs.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Current Rating | 750 mA |
| Voltage Rating - AC | 250 V |
| Voltage Rating - DC | 125 V |
| Response Time | Slow Blow |
| Fuse Type | Cartridge, Glass |
| Mounting Type | Through Hole |
| Package / Case | Cartridge, Non-Standard (Axial) |
| Breaking Capacity @ Rated Voltage | 35A AC, 10kA DC |
| Operating Temperature Range | -55°C to 125°C |
| Size / Dimension | 0.177" Dia x 0.571" L (4.50mm x 14.50mm) |
| DC Cold Resistance | 0.343 Ohms |
| Approval Agencies | CE, CSA, UL |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitute parts for the 0230.750DRT2P are qualified based on the following electrical and mechanical parameters:
Primary Equivalence Criteria:
- Current Rating: 750 mA (exact match required)
- Voltage Rating - AC: 250 V (exact match required)
- Response Time: Slow Blow (exact match required)
- Fuse Type: Cartridge, Glass (exact match required)
- Mounting Type: Through Hole (exact match required)
Secondary Compatibility Factors:
- Breaking Capacity @ Rated Voltage: 35A AC minimum
- Operating Temperature Range: -55°C to 125°C minimum
- Approval Agencies: CE, CSA, UL certifications
- RoHS Compliance: ROHS3 or equivalent
Packaging Variations Allowed: Substitute parts may differ in packaging format (Tape & Reel, Cut Tape, or Bulk) and physical dimensions within the cartridge form factor category, provided electrical performance remains equivalent.
Parameter Comparison
| Parameter | 0230.750DRT2P (Main) | 0230.750DRT1P (Parametric Equivalent) | BK/C515-750-R (MFR Recommended) |
|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Eaton - Electronics Division |
| Current Rating (Amps) | 750 mA | 750 mA | 750 mA |
| Voltage Rating - AC | 250 V | 250 V | 250 V |
| Voltage Rating - DC | 125 V | 125 V | Not Specified |
| Response Time | Slow Blow | Slow Blow | Slow Blow |
| Fuse Type | Cartridge, Glass | Cartridge, Glass | Cartridge, Glass |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Package / Case | Cartridge, Non-Standard (Axial) | Cartridge, Non-Standard (Axial) | 2AG, 5mm x 15mm (Axial) |
| Size / Dimension | 0.177" Dia x 0.571" L (4.50mm x 14.50mm) | 0.177" Dia x 0.571" L (4.50mm x 14.50mm) | 0.217" Dia x 0.598" L (5.50mm x 15.20mm) |
| Breaking Capacity @ Rated Voltage | 35A AC, 10kA DC | 35A AC, 10kA DC | 35A AC |
| DC Cold Resistance | 0.343 Ohms | 0.343 Ohms | 0.26 Ohms |
| Operating Temperature Range | -55°C to 125°C | -55°C to 125°C | Not Specified |
| Approval Agencies | CE, CSA, UL | CE, CSA, UL | CSA, UL |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | RoHS Compliant |
| Product Status | Active | Active | Active |
Engineering Selection Recommendations
0230.750DRT1P (Littelfuse Inc.): This part is a parametric equivalent to the 0230.750DRT2P with identical electrical specifications and physical dimensions. The only difference is packaging format (Cut Tape versus Tape & Reel). Both parts carry Active product status and maintain full CE, CSA, and UL certifications with ROHS3 compliance. Selection between these two Littelfuse variants depends solely on packaging and inventory requirements.
BK/C515-750-R (Eaton - Electronics Division): This part meets the primary electrical criteria of 750 mA, 250 V AC, and Slow Blow response. It is manufactured by Eaton and holds CSA and UL certifications with RoHS compliance. Physical dimensions differ slightly (5.50mm x 15.20mm versus 4.50mm x 14.50mm), and DC voltage rating is not specified in the provided data. This part is suitable for applications where the dimensional variation and packaging format (Bulk) are acceptable within the circuit design constraints.
Frequently Asked Questions (FAQ)
Q: Can the 0230.750DRT1P directly replace the 0230.750DRT2P?
A: Yes. Both parts are manufactured by Littelfuse Inc. with identical electrical specifications (750 mA, 250 V AC, 125 V DC, Slow Blow), identical physical dimensions (4.50mm x 14.50mm), and identical certifications (CE, CSA, UL). The difference is packaging format only (Cut Tape versus Tape & Reel). Direct substitution is valid for all applications.
Q: What are the key differences between the Littelfuse 0230 series and the Eaton BK/C515-750-R?
A: Both maintain 750 mA current rating and 250 V AC voltage rating with Slow Blow response. The Eaton part has a slightly larger physical dimension (5.50mm x 15.20mm versus 4.50mm x 14.50mm) and uses a 2AG form factor. The Littelfuse 0230 series specifies 125 V DC rating, while the Eaton part does not provide DC voltage specification. Certification coverage differs: Littelfuse includes CE certification, while Eaton does not.
Q: Are there mechanical compatibility concerns when substituting the BK/C515-750-R?
A: The BK/C515-750-R has different physical dimensions (0.217" Dia x 0.598" L) compared to the 0230.750DRT2P (0.177" Dia x 0.571" L). Circuit board footprints and holder designs must accommodate the larger 2AG form factor. Mechanical fit verification is required before implementation.
Q: Which substitute part should be selected for new designs?
A: Selection depends on specific design requirements. For identical form factor and maximum certification coverage, use 0230.750DRT1P. For alternative sourcing or where 2AG form factor compatibility exists, BK/C515-750-R is acceptable provided DC voltage requirements do not exceed the unspecified rating and mechanical space permits the larger dimensions.
Q: Do all substitute parts meet RoHS compliance?
A: Yes. The 0230.750DRT2P and 0230.750DRT1P are ROHS3 Compliant. The BK/C515-750-R is RoHS Compliant. All three parts satisfy RoHS requirements for new designs.
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