R26-32.768-12.5-EXT Equivalent & Substitute Parts

Part Overview

The R26-32.768-12.5-EXT is a 32.768 kHz tuning fork crystal manufactured by Raltron Electronics, designed for through-hole applications requiring precise timekeeping and frequency reference functionality. This component operates at a fundamental frequency of 32.768 kHz with a load capacitance of 12.5pF and an equivalent series resistance of 35 kOhms. The part is actively produced and maintains full RoHS3 compliance with unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when electrical parameters, mechanical specifications, and compliance certifications remain equivalent across the product line.

Substiute Parts

R26-32.768-12.5-EXT

Raltron ElectronicsIn Stock: 815R26-32.768-12.5-EXT Datasheet

Current PartRFQ

R26-32.768-12.5

Raltron ElectronicsIn Stock: 28013R26-32.768-12.5 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the R26-32.768-12.5-EXT is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Frequency: 32.768 kHz (exact match required)
• Frequency Tolerance: ±20ppm (exact match required)
• Load Capacitance: 12.5pF (exact match required)
• ESR: 35 kOhms (exact match required)
• Operating Mode: Fundamental (exact match required)

Mechanical Parameters:

• Mounting Type: Through Hole (exact match required)
• Package / Case: Cylindrical Can, Radial (exact match required)
• Physical Dimensions: 0.083" Dia (2.10mm), Height 0.244" (6.20mm) (exact match required)

Environmental & Compliance Parameters:

• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)
• MSL: 1 (Unlimited) (exact match required)

The R26-32.768-12.5 qualifies as a parametric equivalent substitute based on complete alignment with all specified electrical, mechanical, and compliance criteria.

Parameter Comparison

Engineering Selection Recommendations

Both the R26-32.768-12.5-EXT and R26-32.768-12.5 are active production components from Raltron Electronics with full RoHS3 compliance and REACH unaffected status. Selection between these parts is based on availability and packaging requirements rather than electrical or mechanical differentiation.

The R26-32.768-12.5-EXT is supplied in bulk packaging with 805 pieces currently in stock. The R26-32.768-12.5 is also supplied in bulk packaging with significantly higher inventory availability at 27,907 pieces in stock. Both parts carry identical electrical specifications, mechanical dimensions, and environmental ratings. Component selection should prioritize inventory availability and lead time requirements for your application timeline.

Frequently Asked Questions (FAQ)

Q: Can the R26-32.768-12.5 be used as a direct replacement for the R26-32.768-12.5-EXT?

A: Yes. Both parts are parametric equivalents with identical electrical parameters (32.768 kHz frequency, ±20ppm tolerance, 12.5pF load capacitance, 35 kOhms ESR), mechanical specifications (cylindrical can radial package, 0.083" diameter, 0.244" height), operating temperature range (-40°C ~ 85°C), and compliance certifications (RoHS3, MSL 1). Direct substitution is supported without circuit modification.

Q: Are there any differences in the physical package between these two parts?

A: No. Both parts use identical cylindrical can radial through-hole packages with matching dimensions of 0.083" diameter and 0.244" maximum seated height. PCB footprint and mounting requirements are identical.

Q: What is the primary difference between R26-32.768-12.5-EXT and R26-32.768-12.5?

A: The primary difference is packaging designation and inventory availability. Both parts are manufactured by Raltron Electronics in the R26 series with identical electrical and mechanical specifications. The R26-32.768-12.5 maintains higher stock levels (27,907 pieces versus 805 pieces).

Q: Do both parts meet the same compliance requirements?

A: Yes. Both parts are RoHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited moisture sensitivity) rating. Compliance certifications are identical across both part numbers.

Q: Can these crystals be used interchangeably in production?

A: Yes. Since all electrical parameters, mechanical specifications, and compliance certifications are identical, these parts can be used interchangeably in production environments without design changes or circuit validation.

Q: What is the ESR specification and why is it important?

A: The equivalent series resistance (ESR) for both parts is 35 kOhms. ESR affects crystal oscillator circuit performance and must match the design specifications of your oscillator circuit. Both parts carry identical ESR values.

Q: Are there any temperature-related differences between these parts?

A: No. Both parts operate across the identical temperature range of -40°C to 85°C with no derating or performance variation between the two part numbers.