416F27033CDT 27 MHz Crystal Equivalent & Substitute Parts

Part Overview

The 416F27033CDT is a 27 MHz fundamental mode crystal oscillator manufactured by CTS-Frequency Controls, designed for surface mount applications in compact 4-SMD, No Lead packages. This component is discontinued at DiGi Electronics, making equivalent and substitute parts essential for ongoing production and maintenance applications. The crystal operates at ±30ppm frequency stability with an 18pF load capacitance and 120 Ohms equivalent series resistance, suitable for precision timing circuits requiring stable frequency references in the 27 MHz band.

Substiute Parts

416F27033CDT

CTS-Frequency ControlsIn Stock: 1227416F27033CDT Datasheet

Current PartRFQ

416F27033CDR

CTS-Frequency ControlsIn Stock: 1099416F27033CDR Datasheet

Parametric EquivalentRFQ

8Q-27.000MAAJ-T

FTSIn Stock: 66928Q-27.000MAAJ-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 416F27033CDT is determined by strict equivalence across the following critical parameters:

• Frequency: 27 MHz (exact match required)
• Frequency Stability: ±30ppm (tolerance band must be maintained)
• Load Capacitance: 18pF (circuit design dependency)
• Operating Mode: Fundamental (determines harmonic content)
• Package / Case: 4-SMD, No Lead (physical and electrical compatibility)
• Size / Dimension: 0.063" L x 0.047" W (1.60mm x 1.20mm) (PCB layout constraint)
• Operating Temperature Range: -20°C to 70°C (application environment requirement)
• Mounting Type: Surface Mount (assembly process compatibility)

Substitute parts are grouped into two categories: parametric equivalents (identical specifications) and similar parts (minor variations in non-critical parameters such as ESR or height within acceptable operating margins).

Parameter Comparison

Engineering Selection Recommendations

416F27033CDR (CTS-Frequency Controls): This part is a parametric equivalent to the 416F27033CDT with identical electrical and mechanical specifications. The primary distinction is product status—416F27033CDR is currently active in production, whereas the main part is discontinued. Both parts carry ROHS3 compliance and MSL 1 rating. Selection of 416F27033CDR is appropriate for direct replacement in new designs and production continuity.

8Q-27.000MAAJ-T (FTS): This part is a similar substitute with all critical parameters matching the main part (frequency, stability, load capacitance, package, temperature range). The ESR differs by 20 Ohms (100 Ohms versus 120 Ohms) and seated height is 0.002" lower (0.016" versus 0.018"). Both variations fall within acceptable operating margins for most 27 MHz timing applications. The 8Q-27.000MAAJ-T is active in production and carries RoHS compliance. This part is suitable for applications where the lower ESR and reduced height present no circuit design constraints.

Frequently Asked Questions (FAQ)

Q: Can 416F27033CDR be used as a direct replacement for 416F27033CDT?

A: Yes. The 416F27033CDR is a parametric equivalent with identical frequency, stability, load capacitance, ESR, package dimensions, and operating temperature range. The only difference is product status—416F27033CDR is active while 416F27033CDT is discontinued.

Q: What is the difference between 416F27033CDR and 8Q-27.000MAAJ-T?

A: Both parts share the same frequency (27 MHz), stability (±30ppm), load capacitance (18pF), package type (4-SMD, No Lead), and physical dimensions (1.60mm x 1.20mm). The 8Q-27.000MAAJ-T has a lower ESR (100 Ohms versus 120 Ohms) and slightly reduced seated height (0.016" versus 0.018"). These differences are minor and do not affect compatibility in standard 27 MHz timing circuits.

Q: Are there any compliance differences between the substitute parts?

A: The 416F27033CDR maintains ROHS3 compliance matching the original part. The 8Q-27.000MAAJ-T carries RoHS compliance. Both parts have MSL 1 (Unlimited) moisture sensitivity rating. All three parts are EAR99 classified for export purposes.

Q: Does the 20 Ohm ESR difference between 416F27033CDR and 8Q-27.000MAAJ-T affect circuit performance?

A: ESR affects crystal startup time and oscillator circuit Q-factor. The 20 Ohm difference (100 versus 120 Ohms) is within typical design margins for 27 MHz fundamental mode crystals. Circuit validation is necessary only if the original design operates at the edge of ESR specifications.

Q: Can these parts be used interchangeably in existing PCB layouts?

A: Yes. All three parts share identical package type (4-SMD, No Lead) and footprint dimensions (0.063" L x 0.047" W / 1.60mm x 1.20mm). The 8Q-27.000MAAJ-T has a maximum seated height of 0.016" compared to 0.018" for the other parts, which presents no clearance issues in standard applications.

Q: What is the inventory status of these parts?

A: 416F27033CDT has 1140 pieces in stock but is discontinued. 416F27033CDR has 989 pieces in stock and is active. 8Q-27.000MAAJ-T has 6612 pieces in stock and is active.