CTS-Frequency Controls 416F30035CST 30 MHz Crystal Equivalent & Substitute Parts

Part Overview

The CTS-Frequency Controls 416F30035CST is a 30 MHz fundamental mode crystal oscillator in a 4-SMD surface mount package with no lead configuration. This part is discontinued at DiGi Electronics. Equivalent and substitute parts within the same series maintain identical electrical and mechanical specifications, enabling direct replacement in applications requiring 30 MHz frequency reference with ±30ppm tolerance and 80 Ohms equivalent series resistance.

Key Parameters

Parameter	Specification
Frequency	30 MHz
Frequency Tolerance	±30ppm
Frequency Stability	±50ppm
ESR (Equivalent Series Resistance)	80 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 (1.60mm x 1.20mm)
Height - Seated (Max)	0.018" (0.45mm)
Moisture Sensitivity Level (MSL)	1 (Unlimited)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 416F30035CST are qualified based on the following critical parameters:

Frequency: 30 MHz (exact match required)
Frequency Tolerance: ±30ppm (exact match required)
ESR: 80 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)
Compliance: ROHS3 Compliant, MSL 1 (exact match required)

The 416F30035CST has been discontinued. Active substitute parts within the CTS-Frequency Controls 416 series maintain all critical electrical and mechanical parameters, differing only in packaging configuration (Tape & Reel vs. bulk) and product status.

Parameter Comparison

Parameter	416F30035CST (Main Part)	416F30033CSR (Substitute)	416F30035CSR (Substitute)
Manufacturer	CTS-Frequency Controls	CTS-Frequency Controls	CTS-Frequency Controls
Series	416	416	416
Frequency	30 MHz	30 MHz	30 MHz
Frequency Tolerance	±30ppm	±30ppm	±30ppm
Frequency Stability	±50ppm	±30ppm	±50ppm
ESR	80 Ohms	80 Ohms	80 Ohms
Operating Mode	Fundamental	Fundamental	Fundamental
Operating Temperature	-20°C to 70°C	-20°C to 70°C	-20°C to 70°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
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)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
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

The 416F30035CST is discontinued. Both substitute parts—416F30033CSR and 416F30035CSR—are active products from CTS-Frequency Controls and maintain full electrical and mechanical compatibility with the original part.

Selection between substitute parts depends on packaging requirements:

416F30033CSR: Active status, Tape & Reel packaging, frequency stability ±30ppm
416F30035CSR: Active status, Tape & Reel packaging, frequency stability ±50ppm (matches original specification)

Both parts are ROHS3 compliant with MSL 1 rating. Inventory availability should be confirmed with the supplier for production requirements.

Frequently Asked Questions (FAQ)

Q: Can 416F30033CSR and 416F30035CSR be used interchangeably with 416F30035CST?

A: Both substitute parts are electrically and mechanically compatible. The primary difference is packaging format (Tape & Reel vs. bulk) and frequency stability specification. 416F30035CSR maintains the ±50ppm stability of the original part.

Q: What is the difference between frequency tolerance and frequency stability?

A: Frequency tolerance (±30ppm) specifies the initial accuracy at room temperature. Frequency stability (±50ppm or ±30ppm) defines the maximum frequency variation across the operating temperature range of -20°C to 70°C.

Q: Are the substitute parts suitable for high-volume production?

A: Yes. Both substitute parts are available in Tape & Reel packaging, standard for automated assembly processes. Confirm current inventory levels with the supplier.

Q: Do the substitute parts require different PCB layout or soldering parameters?

A: No. All parts share identical physical dimensions (0.063" L x 0.047" W, 0.018" max height) and 4-SMD, No Lead package configuration. PCB footprints and reflow profiles remain unchanged.

Q: Are there compliance or certification differences between the parts?

A: No. All three parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 rating. ECCN and HTSUS classifications are identical.

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