416F360X3IAT 36 MHz Crystal Equivalent & Substitute Parts

Part Overview

The 416F360X3IAT is a 36 MHz fundamental mode crystal manufactured by CTS-Frequency Controls, designed for surface mount applications in 4-SMD, No Lead packaging. This part operates across the industrial temperature range of -40°C to 85°C with ±15ppm frequency tolerance and 10pF load capacitance. The 416F360X3IAT is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Frequency	36 MHz
Frequency Tolerance	±15ppm
Load Capacitance	10pF
ESR (Equivalent Series Resistance)	80 Ohms
Operating Mode	Fundamental
Operating Temperature Range	-40°C to 85°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 for the 416F360X3IAT is determined by the following critical parameters: frequency (36 MHz), frequency tolerance (±15ppm), ESR (80 Ohms), operating temperature range (-40°C to 85°C), mounting type (Surface Mount), package type (4-SMD, No Lead), and physical dimensions (0.063" L x 0.047" W). Load capacitance is the primary variable parameter that differentiates substitute parts within the 416 series.

Substitute parts are grouped into two categories:

Similar Load Capacitance Variants: Parts with different load capacitance values (8pF, 10pF, 12pF) but identical frequency, tolerance, ESR, temperature range, and package specifications. These parts maintain full electrical and mechanical compatibility with the main part.

Parametric Equivalents: Parts with identical load capacitance (10pF) but variations in frequency stability specification. These parts provide equivalent performance for applications where the specified frequency stability range is acceptable.

Parameter Comparison

Part Number	Frequency	Frequency Tolerance	Frequency Stability	Load Capacitance	ESR	Operating Temperature	Package	Product Status	Inventory
416F360X3IAT	36 MHz	±15ppm	±30ppm	10pF	80 Ohms	-40°C ~ 85°C	4-SMD, No Lead	Discontinued	801 Pcs
416F360X3IKR	36 MHz	±15ppm	±30ppm	8pF	80 Ohms	-40°C ~ 85°C	4-SMD, No Lead	Active	937 Pcs
416F360X3ILR	36 MHz	±15ppm	±30ppm	12pF	80 Ohms	-40°C ~ 85°C	4-SMD, No Lead	Active	1158 Pcs
416F360X2IAR	36 MHz	±15ppm	±20ppm	10pF	80 Ohms	-40°C ~ 85°C	4-SMD, No Lead	Active	1143 Pcs
416F360X3IAR	36 MHz	±15ppm	±30ppm	10pF	80 Ohms	-40°C ~ 85°C	4-SMD, No Lead	Active	994 Pcs

Engineering Selection Recommendations

Direct Replacement (Identical Load Capacitance): The 416F360X3IAR provides direct electrical and mechanical compatibility with the 416F360X3IAT. Both parts specify 10pF load capacitance, ±15ppm frequency tolerance, and ±30ppm frequency stability. The 416F360X3IAR is currently active with 994 units in stock, making it the primary substitute for discontinued applications.

Enhanced Stability Alternative: The 416F360X2IAR offers improved frequency stability at ±20ppm while maintaining identical load capacitance (10pF), frequency tolerance (±15ppm), and all other electrical specifications. This part is suitable for applications requiring tighter frequency stability performance. The 416F360X2IAR is active with 1143 units available.

Load Capacitance Variants: The 416F360X3IKR (8pF) and 416F360X3ILR (12pF) are suitable substitutes when circuit design accommodates alternative load capacitance values. Both parts maintain identical frequency, tolerance, ESR, temperature range, and package specifications. The 416F360X3ILR has the highest inventory availability at 1158 units.

All substitute parts are ROHS3 compliant, MSL 1 rated, and maintain the same 4-SMD, No Lead package and physical dimensions as the main part.

Frequently Asked Questions (FAQ)

Q: Can I use 416F360X3IKR (8pF) or 416F360X3ILR (12pF) as direct replacements for 416F360X3IAT (10pF)?

A: Load capacitance compatibility depends on circuit design. These parts are electrically and mechanically compatible in package and frequency specifications. However, the load capacitance value must match the oscillator circuit design requirements. Verify that your circuit can operate with 8pF or 12pF load capacitance before substitution.

Q: What is the difference between 416F360X3IAR and 416F360X2IAR?

A: Both parts have identical 10pF load capacitance and ±15ppm frequency tolerance. The primary difference is frequency stability: 416F360X3IAR specifies ±30ppm, while 416F360X2IAR specifies ±20ppm. Select 416F360X2IAR for applications requiring tighter frequency stability performance.

Q: Are all substitute parts available in the same packaging format?

A: The main part 416F360X3IAT is supplied in standard packaging. All substitute parts (416F360X3IKR, 416F360X3ILR, 416F360X2IAR, 416F360X3IAR) are supplied in Tape & Reel (TR) packaging. Verify that your assembly process accommodates Tape & Reel format.

Q: What is the significance of the part number suffix (IAT vs. IAR vs. IKR vs. ILR)?

A: The suffix indicates packaging format and load capacitance specification. IAT and IAR both indicate 10pF load capacitance with different packaging. IKR indicates 8pF load capacitance, and ILR indicates 12pF load capacitance. All parts maintain the same frequency and ESR specifications.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the main part.

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