CTS-Frequency Controls 416F360X3CDT Equivalent & Substitute Parts

Part Overview

The CTS-Frequency Controls 416F360X3CDT is a 36 MHz fundamental mode crystal oscillator in 4-SMD, No Lead surface mount packaging. This part is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications. The 416F360X3CDT delivers stable frequency performance with 18pF load capacitance and 80 Ohms equivalent series resistance, suitable for precision timing applications requiring 36 MHz operation.

Key Parameters

Parameter	Value
Frequency	36 MHz
Frequency Tolerance	±15ppm
Load Capacitance	18pF
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)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 416F360X3CDT is determined by the following critical parameters:

Frequency: Must be 36 MHz
Frequency Tolerance: Must be ±15ppm or tighter
Load Capacitance: Must be 18pF
ESR: Must be 80 Ohms
Operating Mode: Must be Fundamental
Operating Temperature Range: Must support -20°C to 70°C minimum
Mounting Type: Must be Surface Mount
Package / Case: Must be 4-SMD, No Lead
Physical Dimensions: Must match 0.063" L x 0.047" W (1.60mm x 1.20mm) and 0.018" (0.45mm) maximum height
Compliance: Must maintain ROHS3 compliance and MSL 1 rating

All three substitute parts meet these criteria. Frequency stability (±ppm specification) may vary between parts while maintaining the required tolerance window.

Parameter Comparison

Parameter	416F360X3CDT (Main)	416F360X2CDR	416F360X3CDR	416F360XXCDR
Frequency	36 MHz	36 MHz	36 MHz	36 MHz
Frequency Stability	±30ppm	±20ppm	±30ppm	±15ppm
Frequency Tolerance	±15ppm	±15ppm	±15ppm	±15ppm
Load Capacitance	18pF	18pF	18pF	18pF
ESR	80 Ohms	80 Ohms	80 Ohms	80 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 (1.60mm 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)	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)	0.018" (0.45mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics	Active	Active	Active
Packaging	Bulk	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

All three substitute parts are active products with full ROHS3 compliance and MSL 1 rating, providing long-term availability compared to the discontinued 416F360X3CDT.

416F360X2CDR offers improved frequency stability at ±20ppm while maintaining all electrical and mechanical specifications. This part is suitable for applications requiring tighter stability performance within the same tolerance window.

416F360X3CDR matches the frequency stability specification of the main part at ±30ppm and provides direct parametric equivalence. This part is recommended for direct replacement in existing designs.

416F360XXCDR provides the tightest frequency stability at ±15ppm, matching the frequency tolerance specification. This part is suitable for applications requiring maximum frequency accuracy.

All substitute parts are available in Tape & Reel packaging, which is standard for production volume applications. The main part was available in bulk packaging; design teams should confirm packaging requirements for procurement.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 416F360X3CDT with any of these parts in my existing design?

A: Yes. All three substitute parts maintain identical electrical parameters (36 MHz, ±15ppm tolerance, 18pF load capacitance, 80 Ohms ESR) and mechanical specifications (4-SMD, No Lead package, 1.60mm x 1.20mm x 0.45mm maximum height). Direct PCB layout compatibility is confirmed.

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

A: Frequency tolerance (±15ppm for all parts) defines the initial accuracy at calibration. Frequency stability (ranging from ±15ppm to ±30ppm across the substitute options) defines the maximum frequency drift over the operating temperature range and time. All parts meet the required tolerance specification.

Q: Why are the substitute parts available in Tape & Reel packaging while the main part was bulk?

A: Tape & Reel is the standard production packaging format for surface mount crystals. The main part's bulk packaging availability has been discontinued. Tape & Reel packaging is suitable for automated assembly processes and is the industry standard for SMD components.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All three substitute parts carry ROHS3 compliance certification and MSL 1 (Unlimited) moisture sensitivity rating, matching the environmental and regulatory requirements of the discontinued main part.

Q: Which substitute part should I select for maximum frequency accuracy?

A: The 416F360XXCDR provides the tightest frequency stability specification at ±15ppm. However, all parts meet the required ±15ppm tolerance specification. Selection should be based on your application's specific stability requirements over temperature and time.

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