CTS-Frequency Controls 416F26012CST 26 MHz Crystal Equivalent & Substitute Parts

Part Overview

The 416F26012CST is a 26 MHz surface mount crystal oscillator manufactured by CTS-Frequency Controls, designed for fundamental mode operation in compact 4-SMD, No Lead packages. This part is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications. The crystal operates across the -20°C to 70°C temperature range with 120 Ohms equivalent series resistance and meets ROHS3 compliance requirements.

Key Parameters

Parameter	Value
Frequency	26 MHz
Frequency Tolerance	±10 ppm
Frequency Stability	±20 ppm
ESR (Equivalent Series Resistance)	120 Ohms
Operating Mode	Fundamental
Operating Temperature Range	-20°C to 70°C
Mounting Type	Surface Mount
Package / Case	4-SMD, No Lead
Size / Dimension	0.063" L x 0.047" W (1.60 mm x 1.20 mm)
Height - Seated (Max)	0.018" (0.45 mm)
Load Capacitance	Series
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 416F26012CST is determined by strict equivalence across the following critical parameters:

Frequency: 26 MHz (exact match required)
Frequency Tolerance: ±10 ppm (exact match required)
ESR: 120 Ohms (exact match required)
Operating Mode: Fundamental (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)
Operating Temperature Range: -20°C to 70°C (exact match required)
Load Capacitance: Series (exact match required)

All three substitute parts meet these criteria. Variations in Frequency Stability (±10 ppm, ±15 ppm, or ±20 ppm) and packaging format (bulk vs. Tape & Reel) do not affect functional substitution, as these parameters fall within acceptable tolerance ranges for equivalent operation.

Parameter Comparison

Parameter	416F26012CST (Main)	416F26011CSR	416F26012CSR	416F2601XCSR
Manufacturer	CTS-Frequency Controls	CTS-Frequency Controls	CTS-Frequency Controls	CTS-Frequency Controls
Frequency	26 MHz	26 MHz	26 MHz	26 MHz
Frequency Tolerance	±10 ppm	±10 ppm	±10 ppm	±10 ppm
Frequency Stability	±20 ppm	±10 ppm	±20 ppm	±15 ppm
ESR	120 Ohms	120 Ohms	120 Ohms	120 Ohms
Operating Mode	Fundamental	Fundamental	Fundamental	Fundamental
Operating Temperature	-20°C to 70°C	-20°C to 70°C	-20°C to 70°C	-20°C to 70°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead
Size / Dimension	0.063" L x 0.047" W (1.60 mm x 1.20 mm)	0.063" L x 0.047" W (1.60 mm x 1.20 mm)	0.063" L x 0.047" W (1.60 mm x 1.20 mm)	0.063" L x 0.047" W (1.60 mm x 1.20 mm)
Height - Seated (Max)	0.018" (0.45 mm)	0.018" (0.45 mm)	0.018" (0.45 mm)	0.018" (0.45 mm)
Load Capacitance	Series	Series	Series	Series
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics	Active	Active	Active
Packaging Format	Bulk	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

All three substitute parts are functionally equivalent to the 416F26012CST for applications requiring a 26 MHz crystal with ±10 ppm frequency tolerance and 120 Ohms ESR in a 4-SMD, No Lead package.

416F26011CSR offers the tightest frequency stability specification at ±10 ppm, matching the tolerance specification. This part is currently active in production and available in Tape & Reel packaging, making it suitable for high-volume manufacturing environments.

416F26012CSR maintains identical electrical specifications to the original 416F26012CST, including ±20 ppm frequency stability. This part is currently active and available in Tape & Reel packaging, providing direct functional equivalence with improved supply availability.

416F2601XCSR provides intermediate frequency stability at ±15 ppm, positioned between the other two options. This part is currently active and available in Tape & Reel packaging.

All substitute parts comply with ROHS3 and REACH requirements, carry MSL 1 (Unlimited) moisture sensitivity rating, and operate across the identical -20°C to 70°C temperature range. Selection among these three parts should be based on production volume requirements (Tape & Reel vs. bulk packaging) and frequency stability specifications appropriate to the application.

Frequently Asked Questions (FAQ)

Q: Can 416F26011CSR, 416F26012CSR, and 416F2601XCSR be used interchangeably with 416F26012CST?

A: Yes. All three parts share identical frequency (26 MHz), frequency tolerance (±10 ppm), ESR (120 Ohms), operating mode (Fundamental), package type (4-SMD, No Lead), physical dimensions, operating temperature range (-20°C to 70°C), and load capacitance (Series). Differences in frequency stability specifications do not affect functional substitution.

Q: What is the difference between the substitute parts?

A: The primary differences are frequency stability and packaging format. 416F26011CSR specifies ±10 ppm stability, 416F2601XCSR specifies ±15 ppm stability, and 416F26012CSR specifies ±20 ppm stability. All substitute parts are supplied in Tape & Reel (TR) packaging, while the original 416F26012CST was supplied in bulk format.

Q: Does the Tape & Reel packaging affect compatibility?

A: No. Tape & Reel is a packaging and delivery format for automated assembly processes. The electrical and mechanical specifications of the crystal itself remain identical. The component footprint, soldering requirements, and electrical performance are unchanged.

Q: Are all substitute parts currently available?

A: Yes. All three substitute parts carry Active product status, indicating current production and availability. The original 416F26012CST is discontinued at DiGi Electronics.

Q: Do the substitute parts meet the same compliance requirements?

A: Yes. All substitute parts are ROHS3 Compliant, REACH Unaffected, carry MSL 1 (Unlimited) moisture sensitivity rating, and share identical ECCN (EAR99) and HTSUS (8541.60.0060) classifications.

Q: Which substitute part should I select for my application?

A: Selection depends on production volume and frequency stability requirements. For high-volume automated assembly, Tape & Reel packaging (all three substitutes) is standard. For frequency stability, 416F26011CSR offers the tightest specification at ±10 ppm, while 416F26012CSR provides direct specification matching to the original part at ±20 ppm.

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