CTS-Frequency Controls 416F37023AST 37 MHz Crystal Equivalent & Substitute Parts

Part Overview

The CTS-Frequency Controls 416F37023AST is a 37 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 electrical and mechanical specifications, enabling direct replacement in applications requiring 37 MHz frequency generation with ±20ppm tolerance and 60 Ohms equivalent series resistance.

Key Parameters

Parameter	Specification
Frequency	37 MHz
Frequency Tolerance	±20ppm
Frequency Stability	±30ppm
ESR (Equivalent Series Resistance)	60 Ohms
Operating Mode	Fundamental
Operating Temperature Range	-10°C to 60°C
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)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 416F37023AST are identified based on strict parametric equivalence within the CTS 416 series. The following parameters determine substitution eligibility:

Frequency: 37 MHz (exact match required)
Frequency Tolerance: ±20ppm (exact match required)
ESR: 60 Ohms (exact match required)
Operating Mode: Fundamental (exact match required)
Package / Case: 4-SMD, No Lead (exact match required)
Size / Dimension: 0.063" L x 0.047" W (1.60mm x 1.20mm) (exact match required)
Height - Seated (Max): 0.018" (0.45mm) (exact match required)
Operating Temperature Range: -10°C to 60°C (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)
Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Substitute parts meeting all these criteria are electrically and mechanically interchangeable with the main part.

Parameter Comparison

Parameter	416F37023AST (Main)	416F37022ASR	416F37023ASR
Manufacturer	CTS-Frequency Controls	CTS-Frequency Controls	CTS-Frequency Controls
Series	416	416	416
Frequency	37 MHz	37 MHz	37 MHz
Frequency Tolerance	±20ppm	±20ppm	±20ppm
Frequency Stability	±30ppm	±20ppm	±30ppm
ESR (Equivalent Series Resistance)	60 Ohms	60 Ohms	60 Ohms
Operating Mode	Fundamental	Fundamental	Fundamental
Operating Temperature Range	-10°C to 60°C	-10°C to 60°C	-10°C to 60°C
Package / Case	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead
Size / Dimension	0.063" L x 0.047" W (1.60mm x 1.20mm)	0.063" L x 0.047" W (1.60mm x 1.20mm)	0.063" L x 0.047" W (1.60mm x 1.20mm)
Height - Seated (Max)	0.018" (0.45mm)	0.018" (0.45mm)	0.018" (0.45mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics	Active	Active
Packaging	Bulk	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

Both 416F37022ASR and 416F37023ASR are active substitute parts for the discontinued 416F37023AST. Selection between substitutes is based on product availability and packaging requirements:

416F37022ASR exhibits ±20ppm frequency stability, providing tighter stability performance compared to the main part's ±30ppm specification. This part is available in Tape & Reel packaging with 712 pieces in stock.

416F37023ASR maintains identical frequency stability (±30ppm) to the main part and is available in Tape & Reel packaging with 696 pieces in stock.

Both substitute parts are ROHS3 compliant and carry identical electrical and mechanical specifications. Selection should be based on packaging format requirements and inventory availability for production volumes.

Frequently Asked Questions (FAQ)

Q: Can 416F37022ASR and 416F37023ASR be used interchangeably with 416F37023AST?

A: Yes. Both parts meet all electrical and mechanical substitution criteria, including frequency, tolerance, ESR, package dimensions, and operating temperature range. The primary difference is product status (active vs. discontinued) and packaging format (Tape & Reel vs. bulk).

Q: What is the difference between 416F37022ASR and 416F37023ASR?

A: The parts differ in frequency stability specification. 416F37022ASR provides ±20ppm stability, while 416F37023ASR provides ±30ppm stability. Both maintain ±20ppm frequency tolerance. Selection depends on application stability requirements.

Q: Are the package dimensions identical across all three parts?

A: Yes. All three parts use the same 4-SMD, No Lead package with dimensions of 0.063" L x 0.047" W (1.60mm x 1.20mm) and maximum seated height of 0.018" (0.45mm).

Q: What is the significance of Tape & Reel packaging for the substitute parts?

A: Tape & Reel packaging is standard for automated assembly processes and high-volume production. The main part 416F37023AST is supplied in bulk packaging, while substitutes are available in Tape & Reel format, which may require different handling procedures depending on assembly equipment.

Q: Are all parts RoHS compliant?

A: Yes. All three parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.

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