DRR-DTH-65-75 Equivalent & Substitute Parts

Part Overview

The DRR-DTH-65-75 is a glass body reed switch manufactured by Littelfuse Inc., configured as a Single Pole Double Throw (SPDT) device rated for 350mA AC / 500mA DC switching at 350V AC and 500V DC. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing system support and procurement planning. The substitute part DRS-DTH-65-75 maintains identical electrical and mechanical specifications while offering active product status and improved availability.

Substiute Parts

DRR-DTH-65-75

Littelfuse Inc.In Stock: 967DRR-DTH-65-75 Datasheet

Current PartRFQ

DRS-DTH-65-75

LittelfuseIn Stock: 875DRS-DTH-65-75 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The DRS-DTH-65-75 qualifies as a direct substitute for the DRR-DTH-65-75 based on strict parameter equivalence across all critical electrical and mechanical specifications. Substitution is valid when the following parameters match exactly:

• Circuit configuration: SPDT
• Operate range: 65 ~ 75 AT
• Current switching ratings: 350 mA (AC) / 500 mA (DC)
• Voltage switching ratings: 350 V (AC) / 500 V (DC)
• Power rating: 30 W
• Mounting type: Through Hole
• Termination style: Axial
• Operating temperature range: -20°C ~ 125°C
• Physical dimensions: 3.375" (85.73 mm) overall length, 0.210" diameter × 1.500" length body

The DRS-DTH-65-75 maintains all specified parameters identically to the main part while offering active product status and ROHS3 compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The DRS-DTH-65-75 is the recommended substitute for the obsolete DRR-DTH-65-75. Both components are manufactured by Littelfuse and maintain identical electrical performance specifications, mechanical dimensions, and ROHS3 compliance certification. The primary distinction is product status: the DRS-DTH-65-75 is actively manufactured and supported, whereas the DRR-DTH-65-75 is obsolete.

Selection of the DRS-DTH-65-75 ensures:

• Full electrical and mechanical compatibility with existing circuit designs
• Continued compliance with ROHS3 environmental regulations
• Access to active manufacturer support and documentation
• Improved long-term availability and supply chain stability

No design modifications or circuit re-qualification are required when transitioning from DRR-DTH-65-75 to DRS-DTH-65-75.

Frequently Asked Questions (FAQ)

Q: Can DRS-DTH-65-75 be used as a direct replacement for DRR-DTH-65-75 without circuit modification?

A: Yes. The DRS-DTH-65-75 maintains identical electrical ratings (350 mA AC / 500 mA DC, 350 V AC / 500 V DC), mechanical dimensions (3.375" length, axial termination), and operating temperature range (-20°C ~ 125°C). No circuit redesign is necessary.

Q: What is the primary reason to substitute DRR-DTH-65-75?

A: The DRR-DTH-65-75 is classified as obsolete. The DRS-DTH-65-75 provides an active, currently manufactured equivalent with identical specifications, ensuring long-term availability and manufacturer support.

Q: Are there packaging differences between these parts?

A: The DRR-DTH-65-75 is supplied without specified packaging, while the DRS-DTH-65-75 is supplied in box packaging. Both components are through-hole mounted with axial termination and occupy identical PCB footprints.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the DRR-DTH-65-75 and DRS-DTH-65-75 are ROHS3 compliant. The DRS-DTH-65-75 additionally carries REACH Unaffected status.

Q: What are the switching time specifications?

A: Both parts operate with 4.5 ms operate time and 7 ms release time, ensuring identical response characteristics in switching applications.