CTS-Frequency Controls 416F374X2ALT 37.4 MHz Crystal Equivalent & Substitute Parts

Part Overview

The CTS-Frequency Controls 416F374X2ALT is a 37.4 MHz fundamental mode crystal oscillator in 4-SMD, No Lead surface mount packaging. This part operates at 37.4 MHz with ±15 ppm frequency tolerance and 12 pF load capacitance. The 416F374X2ALT is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and production continuity. Active alternatives within the same series maintain identical electrical and mechanical specifications while offering current availability.

Substiute Parts

416F374X2ALT

CTS-Frequency ControlsIn Stock: 1064416F374X2ALT Datasheet

Current PartRFQ

416F374X2AAR

CTS-Frequency ControlsIn Stock: 722416F374X2AAR Datasheet

SimilarRFQ

416F374X2ALR

CTS-Frequency ControlsIn Stock: 714416F374X2ALR Datasheet

Parametric EquivalentRFQ

416F374XXALR

CTS-Frequency ControlsIn Stock: 1112416F374XXALR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of 37.4 MHz crystals within the CTS-Frequency Controls 416 series is determined by the following critical parameters:

Electrical Compatibility Parameters:

• Frequency: 37.4 MHz (exact match required)
• Frequency Tolerance: ±15 ppm (exact match required)
• Load Capacitance: 12 pF or 10 pF (within acceptable circuit design margins)
• ESR: 60 Ohms (exact match required)
• Operating Mode: Fundamental (exact match required)

Mechanical Compatibility Parameters:

• Package / Case: 4-SMD, No Lead (exact match required)
• Size / Dimension: 0.063" L x 0.047" W / 1.60 mm x 1.20 mm (exact match required)
• Height - Seated (Max): 0.018" / 0.45 mm (exact match required)
• Mounting Type: Surface Mount (exact match required)

Environmental & Compliance Parameters:

• 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)

The 416F374X2ALT has two direct parametric equivalents (416F374X2ALR and 416F374XXALR) that maintain all critical electrical and mechanical specifications. The 416F374X2AAR differs only in load capacitance (10 pF vs. 12 pF) and represents a functional alternative for circuits designed to accommodate this variation.

Parameter Comparison

Engineering Selection Recommendations

Direct Parametric Equivalents (Recommended for Drop-In Replacement):

416F374X2ALR and 416F374XXALR are direct parametric equivalents to the 416F374X2ALT. Both parts maintain identical electrical specifications (37.4 MHz, ±15 ppm tolerance, 12 pF load capacitance, 60 Ohms ESR) and mechanical dimensions. Both are currently active products available in Tape & Reel packaging, providing production continuity. The 416F374XXALR offers improved frequency stability at ±15 ppm compared to the ±20 ppm of the main part. All three parts are ROHS3 compliant with MSL 1 rating.

Functional Alternative (Load Capacitance Variation):

416F374X2AAR is a functional alternative with identical frequency, tolerance, ESR, and mechanical specifications, but with 10 pF load capacitance instead of 12 pF. This part is suitable only for circuits designed or verified to operate with 10 pF load capacitance. The 416F374X2AAR is currently active and available in Tape & Reel packaging.

Availability & Compliance:

All substitute parts maintain ROHS3 compliance and MSL 1 rating. The 416F374X2ALR and 416F374XXALR are recommended for new designs and production continuity due to active product status and identical parametric specifications.

Frequently Asked Questions (FAQ)

Q: Can I use 416F374X2ALR as a direct replacement for 416F374X2ALT?

A: Yes. The 416F374X2ALR is a direct parametric equivalent with identical frequency (37.4 MHz), tolerance (±15 ppm), load capacitance (12 pF), ESR (60 Ohms), and mechanical dimensions. No circuit modifications are required.

Q: What is the difference between 416F374X2ALT and 416F374XXALR?

A: Both parts are electrically and mechanically identical except for frequency stability. The 416F374XXALR offers ±15 ppm stability compared to ±20 ppm for the 416F374X2ALT. The 416F374XXALR is currently active, while the 416F374X2ALT is discontinued.

Q: Can I substitute 416F374X2AAR for 416F374X2ALT?

A: The 416F374X2AAR differs in load capacitance (10 pF vs. 12 pF). Substitution is only valid if your circuit is designed or verified to operate with 10 pF load capacitance. Verify circuit design specifications before substitution.

Q: What does "4-SMD, No Lead" packaging mean?

A: This refers to a surface mount device with four solder pads and no through-hole leads. The package dimensions are 0.063" L x 0.047" W (1.60 mm x 1.20 mm) with a maximum seated height of 0.018" (0.45 mm).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed (416F374X2ALT, 416F374X2AAR, 416F374X2ALR, and 416F374XXALR) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level.

Q: What is the difference between Bulk and Tape & Reel packaging?

A: The 416F374X2ALT is supplied in Bulk packaging. The substitute parts (416F374X2AAR, 416F374X2ALR, 416F374XXALR) are supplied in Tape & Reel (TR) packaging, which is standard for automated assembly processes. Both packaging formats contain the same electronic component.