CTS-Frequency Controls 416F26013AST 26 MHz Crystal Equivalent & Substitute Parts

Part Overview

The CTS-Frequency Controls 416F26013AST is a 26 MHz fundamental mode crystal oscillator in a 4-SMD, No Lead surface mount package. This part is discontinued at DiGi Electronics. Equivalent and substitute parts within the CTS 416 series maintain identical mechanical and electrical specifications, enabling direct replacement in applications requiring 26 MHz frequency generation with ±10ppm tolerance and 120 Ohms equivalent series resistance.

Key Parameters

Parameter	Value
Frequency	26 MHz
Frequency Tolerance	±10ppm
ESR (Equivalent Series Resistance)	120 Ohms
Operating Mode	Fundamental
Operating Temperature Range	-10°C ~ 60°C
Mounting Type	Surface Mount
Package / Case	4-SMD, No Lead
Size / Dimension	0.063" L x 0.047" W (1.60mm x 1.20mm)
Height - Seated (Max)	0.018" (0.45mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution within the CTS 416 series is determined by the following critical parameters:

Frequency: 26 MHz (exact match required)
Frequency Tolerance: ±10ppm (exact match required)
ESR: 120 Ohms (exact match required)
Operating Mode: Fundamental (exact match required)
Operating Temperature Range: -10°C ~ 60°C (exact match required)
Package / Case: 4-SMD, No Lead (exact match required)
Physical Dimensions: 0.063" L x 0.047" W, 0.018" max height (exact match required)
Compliance: ROHS3 Compliant, MSL 1 (exact match required)

All substitute parts listed maintain these specifications. Variations in frequency stability (±10ppm to ±30ppm) and product status (Active vs. Discontinued) do not affect substitutability, as frequency tolerance remains constant at ±10ppm across all variants.

Parameter Comparison

Part Number	Manufacturer	Frequency	Frequency Tolerance	Frequency Stability	ESR	Package	Dimensions	Height (Max)	Operating Temp	Product Status	Packaging Type	Inventory
416F26013AST	CTS-Frequency Controls	26 MHz	±10ppm	±30ppm	120 Ohms	4-SMD, No Lead	0.063" L x 0.047" W (1.60mm x 1.20mm)	0.018" (0.45mm)	-10°C ~ 60°C	Discontinued	Bulk	958 Pcs
416F26011ASR	CTS-Frequency Controls	26 MHz	±10ppm	±10ppm	120 Ohms	4-SMD, No Lead	0.063" L x 0.047" W (1.60mm x 1.20mm)	0.018" (0.45mm)	-10°C ~ 60°C	Active	Tape & Reel (TR)	858 Pcs
416F26012ASR	CTS-Frequency Controls	26 MHz	±10ppm	±20ppm	120 Ohms	4-SMD, No Lead	0.063" L x 0.047" W (1.60mm x 1.20mm)	0.018" (0.45mm)	-10°C ~ 60°C	Active	Tape & Reel (TR)	887 Pcs
416F26013ASR	CTS-Frequency Controls	26 MHz	±10ppm	±30ppm	120 Ohms	4-SMD, No Lead	0.063" L x 0.047" W (1.60mm x 1.20mm)	0.018" (0.45mm)	-10°C ~ 60°C	Active	Tape & Reel (TR)	806 Pcs
416F2601XASR	CTS-Frequency Controls	26 MHz	±10ppm	±15ppm	120 Ohms	4-SMD, No Lead	0.063" L x 0.047" W (1.60mm x 1.20mm)	0.018" (0.45mm)	-10°C ~ 60°C	Active	Tape & Reel (TR)	820 Pcs

Engineering Selection Recommendations

All listed substitute parts are ROHS3 compliant and carry MSL 1 rating, meeting the same regulatory and environmental requirements as the primary part 416F26013AST.

For new designs and production applications, select from the Active status parts: 416F26011ASR, 416F26012ASR, 416F26013ASR, or 416F2601XASR. These parts are available in Tape & Reel packaging, suitable for automated assembly processes.

The 416F26013ASR provides the closest electrical match to the discontinued 416F26013AST, maintaining identical frequency stability at ±30ppm while offering Active product status and standard reel packaging.

Frequently Asked Questions (FAQ)

Q: Can 416F26011ASR replace 416F26013AST directly? A: Yes. Both parts maintain 26 MHz frequency, ±10ppm tolerance, 120 Ohms ESR, identical package dimensions, and operating temperature range. The difference in frequency stability (±10ppm vs. ±30ppm) does not affect substitutability.

Q: What is the difference between Bulk and Tape & Reel packaging? A: Bulk packaging (416F26013AST) is suitable for manual handling and small-quantity applications. Tape & Reel packaging (416F26011ASR, 416F26012ASR, 416F26013ASR, 416F2601XASR) is designed for automated pick-and-place assembly and high-volume production.

Q: Are all substitute parts mechanically compatible? A: Yes. All parts share identical dimensions (0.063" L x 0.047" W, 0.018" max height) and 4-SMD, No Lead package configuration, ensuring direct PCB footprint compatibility.

Q: Does frequency stability affect circuit performance? A: Frequency stability (±10ppm to ±30ppm) defines long-term frequency drift over temperature and time. Frequency tolerance (±10ppm across all parts) defines initial accuracy at room temperature. Both parameters are within specification for all listed parts.

Q: Which part should be selected for new production? A: Select 416F26013ASR for closest match to the discontinued part, or 416F26011ASR for tighter frequency stability. Both are Active status with standard Tape & Reel packaging.

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