R1973BBLKREDIF2 Equivalent & Substitute Parts

Part Overview

The R1973BBLKREDIF2 is an illuminated rocker switch manufactured by E-Switch, classified as a DPST (Double Pole Single Throw) panel mount component rated for 9A at 125V AC. This switch features a red concave actuator with neon red illumination and quick connect termination, designed for applications requiring reliable on-off control with visual feedback. The product is currently active and maintains full RoHS3 compliance. Substitute parts are identified when equivalent electrical ratings, mechanical compatibility, and functional characteristics align with the original specification, enabling component interchangeability in applications where the primary part becomes unavailable or inventory constraints require alternative sourcing.

Substiute Parts

R1973BBLKREDIF2

E-SwitchIn Stock: 1168R1973BBLKREDIF2 Datasheet

Current PartRFQ

LRA32H2BBRLN

ZF ElectronicsIn Stock: 1143LRA32H2BBRLN Datasheet

MFR RecommendedRFQ

LRA32H2FBRLN

ZF ElectronicsIn Stock: 5973LRA32H2FBRLN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the R1973BBLKREDIF2 are qualified based on the following critical parameters that determine functional and mechanical interchangeability:

Electrical Compatibility Criteria:

• Circuit configuration must be DPST
• Voltage rating must be 125V AC minimum
• Current rating must meet or exceed 9A AC
• Illumination type and color must match (Neon, Red)

Mechanical Compatibility Criteria:

• Mounting type must be Panel Mount, Snap-In
• Termination style must be Quick Connect - 0.187" (4.7mm)
• Panel cutout dimensions must be compatible with the original specification
• Actuator type must be Concave (Curved) - Illuminated with Red color

Compliance Criteria:

• RoHS3 compliance required
• Product status must be Active

The identified substitute parts LRA32H2BBRLN and LRA32H2FBRLN from ZF Electronics meet these core requirements while maintaining functional equivalence for panel-mounted on-off switching applications.

Parameter Comparison

Engineering Selection Recommendations

Both LRA32H2BBRLN and LRA32H2FBRLN from ZF Electronics are qualified substitutes for the R1973BBLKREDIF2. The ZF Electronics alternatives provide higher current ratings (10A versus 9A) and extended mechanical life (100,000 cycles versus 30,000 cycles), offering enhanced performance margins for the same voltage class and circuit configuration.

The ZF Electronics substitutes carry CE, cULus, and VDE certifications, providing broader regulatory acceptance compared to the original part. Both maintain RoHS3 compliance and active product status, ensuring long-term availability and supply chain stability.

Panel cutout dimensions differ marginally (19.10mm x 12.90mm for substitutes versus 19.20mm x 12.80mm for the original), remaining within typical manufacturing tolerances for panel mount applications. Operating temperature range for substitutes extends to -20°C minimum versus -30°C for the original, suitable for most industrial and commercial environments.

The illumination voltage difference (125 VAC for substitutes versus 250 VAC for the original) requires circuit verification to ensure compatibility with existing illumination supply circuits.

Frequently Asked Questions (FAQ)

Q: Can LRA32H2BBRLN and LRA32H2FBRLN be used interchangeably with R1973BBLKREDIF2?

A: Both ZF Electronics parts are functionally equivalent substitutes. They share identical circuit configuration (DPST), voltage rating (125V AC), mounting type (Panel Mount, Snap-In), actuator characteristics (Red, Concave, Illuminated), and termination style (Quick Connect - 0.187"). Panel cutout dimensions are compatible within standard manufacturing tolerances.

Q: What are the differences between the two ZF Electronics substitutes?

A: LRA32H2BBRLN features no actuator marking, while LRA32H2FBRLN carries "O -" marking. Both parts are electrically and mechanically identical, with identical current ratings (10A), voltage ratings (125V AC), mechanical life (100,000 cycles), and certifications (CE, cULus, VDE). Selection depends on actuator marking requirements for the application.

Q: Does the illumination voltage difference affect compatibility?

A: The original part requires 250 VAC illumination supply, while substitutes require 125 VAC. Circuit design must accommodate this difference. If the existing circuit supplies 250 VAC illumination, the substitute parts will not illuminate correctly. Circuit modification or alternative sourcing may be necessary.

Q: Are panel cutout dimensions compatible?

A: Panel cutout dimensions differ slightly (original: 19.20mm x 12.80mm; substitutes: 19.10mm x 12.90mm). These variations fall within standard manufacturing tolerances for panel mount snap-in switches and are compatible with typical panel preparation specifications.

Q: What is the current rating difference, and does it matter?

A: Substitutes are rated for 10A AC versus the original 9A AC. The higher rating provides additional safety margin and does not create compatibility issues. Applications designed for 9A operation remain fully compatible with 10A-rated components.

Q: Do the substitutes have better certifications?

A: ZF Electronics substitutes carry CE, cULus, and VDE certifications, while the original part does not specify approval agencies. The additional certifications expand regulatory acceptance in European and North American markets.

Q: What about operating temperature range differences?

A: The original part operates from -30°C to 65°C, while substitutes operate from -20°C to 65°C. For applications requiring operation below -20°C, the original part is required. Most industrial and commercial environments operate within the substitute temperature range.

Q: How do mechanical and electrical life ratings compare?

A: The original part specifies 30,000 mechanical cycles and 10,000 electrical cycles. Substitutes provide 100,000 mechanical cycles and 6,000 electrical cycles. The higher mechanical life of substitutes indicates improved durability for frequent switching applications, while the lower electrical life may require evaluation for high-frequency switching scenarios.