DS32KHZS/T&R TCXO Oscillator Equivalent & Substitute Parts

Part Overview

The DS32KHZS/T&R is a 32.768 kHz temperature-compensated crystal oscillator (TCXO) manufactured by Analog Devices Inc./Maxim Integrated. This component delivers CMOS-level output at 5V supply voltage with ±7.5ppm frequency stability across the 0°C to 70°C operating temperature range. The part is currently classified as obsolete, making identification of compatible substitutes essential for ongoing system support and component procurement.

Substiute Parts

DS32KHZS/T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 941DS32KHZS/T&R Datasheet

Current PartRFQ

DS32KHZS#T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 5236DS32KHZS#T&R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS32KHZS/T&R is determined by strict equivalence across the following critical parameters:

• Frequency: 32.768 kHz (exact match required)
• Type: TCXO (temperature-compensated oscillator)
• Output: CMOS logic level
• Supply Voltage: 5V
• Frequency Stability: ±7.5ppm
• Operating Temperature Range: 0°C ~ 70°C
• Current Consumption: 220µA maximum
• Mounting: Surface Mount
• Package: 16-SOIC configuration
• Physical Dimensions: 0.412" L x 0.300" W, 0.105" max height

The DS32KHZS#T&R qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction lies in packaging format and product status, not in functional performance.

Parameter Comparison

Engineering Selection Recommendations

The DS32KHZS#T&R is the direct functional equivalent of the obsolete DS32KHZS/T&R. Both parts share identical electrical performance specifications and mechanical compatibility within the 16-SOIC package family.

The primary advantage of selecting DS32KHZS#T&R is its active product status and ROHS3 compliance. The main part is classified as obsolete and carries RoHS non-compliant status, creating long-term supply chain and regulatory risk. The substitute part addresses both concerns while maintaining full electrical and mechanical interchangeability.

The packaging width specification difference (0.154" versus 0.295") reflects standard industry variations within the 16-SOIC family and does not affect PCB footprint compatibility or functional performance.

Frequently Asked Questions (FAQ)

Q: Are DS32KHZS/T&R and DS32KHZS#T&R electrically identical?

A: Yes. Both parts deliver 32.768 kHz TCXO output at 5V with ±7.5ppm frequency stability, 220µA maximum supply current, and identical operating temperature range (0°C ~ 70°C).

Q: What is the difference between these two part numbers?

A: The primary differences are packaging format and product lifecycle status. DS32KHZS/T&R is obsolete and RoHS non-compliant. DS32KHZS#T&R is active production and ROHS3 compliant. The 16-SOIC package width specification differs (0.154" versus 0.295"), representing standard industry packaging variations.

Q: Will DS32KHZS#T&R fit the same PCB footprint?

A: Yes. Both parts use the 16-SOIC package with identical length (0.412"), width (0.300"), and maximum seated height (0.105"). The package width specification difference does not affect PCB layout compatibility.

Q: Why should I select the substitute part?

A: The substitute part is in active production with current availability and ROHS3 compliance certification. The main part is obsolete, creating procurement risk and regulatory non-compliance for new designs or long-term system support.

Q: Are there any performance trade-offs when using the substitute?

A: No. Electrical performance, frequency stability, supply current, and operating temperature specifications are identical between both parts.