416F40033AST Crystal Equivalent & Substitute Parts

Part Overview

The 416F40033AST is a 40 MHz surface mount crystal oscillator manufactured by CTS-Frequency Controls, designed for applications requiring precise frequency control in compact form factors. This component operates at a fundamental frequency of 40 MHz with ±30ppm stability across the temperature range of -10°C to 60°C. The part is currently discontinued at DiGi Electronics, making identification of equivalent substitute components essential for ongoing production and maintenance applications.

Substiute Parts

416F40033AST

CTS-Frequency ControlsIn Stock: 1052416F40033AST Datasheet

Current PartRFQ

416F40033ASR

CTS-Frequency ControlsIn Stock: 1127416F40033ASR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 416F40033AST is determined by strict equivalence across the following critical parameters:

• Frequency: 40 MHz (exact match required)
• Frequency Stability: ±30ppm (exact match required)
• ESR: 60 Ohms (exact match required)
• Operating Mode: Fundamental (exact match required)
• Operating Temperature Range: -10°C to 60°C (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)
• Load Capacitance: Series (exact match required)

The substitute part 416F40033ASR meets all these criteria and is manufactured by the same supplier (CTS-Frequency Controls) within the same 416 series. The primary distinction between these parts is packaging configuration and product status.

Parameter Comparison

Engineering Selection Recommendations

The 416F40033ASR is a direct parametric equivalent to the 416F40033AST. Both components are manufactured by CTS-Frequency Controls and share identical electrical and mechanical specifications. The 416F40033ASR maintains active product status, ensuring continued availability and supply chain reliability. Both parts comply with ROHS3 and REACH requirements, with identical MSL ratings of 1 (Unlimited), indicating no moisture sensitivity constraints during storage and handling.

The primary distinction is packaging configuration: the 416F40033AST is supplied in bulk packaging, while the 416F40033ASR is supplied in Tape & Reel (TR) format. This difference does not affect electrical performance or mechanical compatibility. Selection between these parts should be based on procurement requirements and assembly process specifications.

Frequently Asked Questions (FAQ)

Q: Can the 416F40033ASR replace the 416F40033AST in existing designs?

A: Yes. The 416F40033ASR is a direct parametric equivalent with identical electrical characteristics, frequency specifications, ESR, operating temperature range, and physical dimensions. No circuit modifications are required.

Q: What is the difference between these two part numbers?

A: The primary difference is packaging configuration. The 416F40033AST uses bulk packaging, while the 416F40033ASR uses Tape & Reel (TR) packaging. Electrical and mechanical specifications are identical.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain identical RoHS3 compliance, REACH status, and MSL ratings. No compliance trade-offs exist between these components.

Q: Does the Tape & Reel packaging affect component performance?

A: No. Tape & Reel packaging is a distribution format only and does not alter electrical performance, frequency stability, or operating characteristics of the crystal.

Q: Is the 416F40033ASR currently available?

A: Yes. The 416F40033ASR maintains active product status with documented inventory availability, unlike the discontinued 416F40033AST.

Q: Are the physical dimensions identical?

A: Yes. Both parts share identical dimensions of 0.063" L x 0.047" W (1.60mm x 1.20mm) with a maximum seated height of 0.018" (0.45mm), ensuring identical PCB footprint compatibility.