GC1200067 Equivalent & Substitute Parts

Part Overview

The GC1200067 is a 12 MHz surface mount crystal oscillator manufactured by Diodes Incorporated, part of the SaRonix-eCera™ GC series. This component is an active product designed for fundamental mode operation in applications requiring precise frequency reference. The part is specified for 30pF load capacitance with 60 Ohms equivalent series resistance (ESR), housed in an HC-49/US package. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to inventory constraints, supply chain considerations, or design flexibility within the allowed parameter specifications.

Substiute Parts

GC1200067

Diodes IncorporatedIn Stock: 974GC1200067 Datasheet

Current PartRFQ

J49SMH-P-G-G-K-12M0

Jauch QuartzIn Stock: 9135J49SMH-P-G-G-K-12M0 Datasheet

MFR RecommendedRFQ

J49SML-P-G-G-K-12M0

Jauch QuartzIn Stock: 10159J49SML-P-G-G-K-12M0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the GC1200067 are qualified based on the following critical parameters that must remain constant:

• Frequency: 12 MHz (exact match required)
• Frequency Stability: ±30ppm (exact match required)
• Load Capacitance: 30pF (exact match required)
• Operating Mode: Fundamental (exact match required)
• Operating Temperature Range: -40°C to 85°C (exact match required)
• Package / Case: HC-49/US (exact match required)
• Mounting Type: Surface Mount (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (exact match required)

The substitute parts identified (J49SMH-P-G-G-K-12M0 and J49SML-P-G-G-K-12M0) meet all critical electrical and mechanical parameters. Variations in ESR (35 Ohms versus 60 Ohms) and physical dimensions remain within acceptable tolerances for HC-49/US package variants and do not affect functional compatibility in standard applications.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts (J49SMH-P-G-G-K-12M0 and J49SML-P-G-G-K-12M0) are manufactured by Jauch Quartz and maintain active product status. All three parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The substitute parts carry higher inventory availability (9,096 and 10,067 units respectively) compared to the primary part (875 units), providing supply chain flexibility.

Selection between the GC1200067 and its substitutes should be based on availability requirements and application-specific ESR tolerance. The lower ESR specification of the Jauch parts (35 Ohms) may provide operational advantages in circuits sensitive to series resistance characteristics, while the GC1200067 specification (60 Ohms) represents a standard tolerance range for HC-49/US package crystals.

Frequently Asked Questions (FAQ)

Q: Can J49SMH-P-G-G-K-12M0 and J49SML-P-G-G-K-12M0 be used interchangeably with GC1200067?

A: Yes, both Jauch parts are electrically and mechanically equivalent to the GC1200067 for applications requiring 12 MHz, ±30ppm stability, 30pF load capacitance, and HC-49/US package specifications. The primary difference is ESR (35 Ohms versus 60 Ohms), which remains within acceptable HC-49/US package tolerances.

Q: What is the difference between J49SMH-P-G-G-K-12M0 and J49SML-P-G-G-K-12M0?

A: Both parts are identical in electrical specifications. The difference is physical height: J49SMH has a maximum seated height of 0.157" (4.00mm), while J49SML has a maximum seated height of 0.118" (3.00mm). Selection depends on available PCB clearance in the application.

Q: Are all three parts RoHS compliant?

A: Yes, all three parts (GC1200067, J49SMH-P-G-G-K-12M0, and J49SML-P-G-G-K-12M0) are ROHS3 compliant with Moisture Sensitivity Level 1 (unlimited shelf life).

Q: Does the ESR difference affect circuit performance?

A: ESR differences (60 Ohms versus 35 Ohms) are within standard HC-49/US package specifications. Circuit compatibility depends on the oscillator circuit design. Consult application-specific circuit requirements to confirm ESR tolerance acceptance.

Q: What packaging is available for these parts?

A: All three parts are supplied in Tape & Reel (TR) packaging for automated assembly processes.