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CS07977-32M Crystal Equivalent & Substitute Parts
Part Overview
The CS07977-32M is a 32 MHz crystal oscillator manufactured by NDK America, Inc., designed for surface mount applications. This Active product operates at a fundamental frequency with a 10pF load capacitance and 60 Ohms equivalent series resistance. The component is housed in a 4-SMD, No Lead package measuring 2.00mm x 1.60mm, suitable for compact electronic assemblies requiring precise timing references. Substitute parts are identified when inventory constraints, lead time requirements, or design flexibility necessitate alternative components that maintain electrical and mechanical compatibility within the NX2016SA series.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | CS07977-32M |
| Manufacturer | NDK America, Inc. |
| Frequency | 32 MHz |
| Load Capacitance | 10pF |
| ESR (Equivalent Series Resistance) | 60 Ohms |
| Operating Mode | Fundamental |
| Operating Temperature Range | -40°C ~ 125°C |
| Package / Case | 4-SMD, No Lead |
| Size / Dimension | 2.00mm x 1.60mm |
| Height - Seated (Max) | 0.50mm |
| Mounting Type | Surface Mount |
| Product Status | Active |
| Ratings | AEC-Q200 |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the CS07977-32M is determined by the following critical parameters:
- Frequency: 32 MHz (exact match required)
- Operating Mode: Fundamental (exact match required)
- Package / Case: 4-SMD, No Lead (exact match required)
- Size / Dimension: 2.00mm x 1.60mm (exact match required)
- Operating Temperature Range: -40°C ~ 125°C (exact match required)
- ESR: 60 Ohms (exact match required)
- Manufacturer: NDK America, Inc. (same manufacturer preferred for series consistency)
- Series: NX2016SA (same series)
- Product Status: Active (current production status)
- Ratings: AEC-Q200 (automotive-grade qualification)
The CS06654-32M qualifies as a substitute based on matching all critical electrical and mechanical parameters. The variance in load capacitance (8pF versus 10pF) represents the only parameter difference and falls within acceptable substitution criteria for this product category, as both values support the same 32 MHz fundamental frequency operation in the NX2016SA series.
Parameter Comparison
| Parameter | CS07977-32M (Main Part) | CS06654-32M (Substitute) |
|---|---|---|
| Manufacturer | NDK America, Inc. | NDK America, Inc. |
| Series | NX2016SA | NX2016SA |
| Frequency | 32 MHz | 32 MHz |
| Load Capacitance | 10pF | 8pF |
| ESR (Equivalent Series Resistance) | 60 Ohms | 60 Ohms |
| Operating Mode | Fundamental | Fundamental |
| Operating Temperature Range | -40°C ~ 125°C | -40°C ~ 125°C |
| Package / Case | 4-SMD, No Lead | 4-SMD, No Lead |
| Size / Dimension | 2.00mm x 1.60mm | 2.00mm x 1.60mm |
| Height - Seated (Max) | 0.50mm | 0.50mm |
| Mounting Type | Surface Mount | Surface Mount |
| Product Status | Active | Active |
| Ratings | AEC-Q200 | AEC-Q200 |
| RoHS Status | RoHS Compliant | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Both the CS07977-32M and CS06654-32M are Active products manufactured by NDK America, Inc., within the NX2016SA series. Both components carry AEC-Q200 automotive-grade ratings and RoHS compliance certification, confirming suitability for regulated applications. The identical operating temperature range (-40°C ~ 125°C), package configuration, and ESR specification ensure mechanical and thermal compatibility in surface mount assemblies.
Selection between these parts should be based on load capacitance requirements specific to the circuit design. The CS07977-32M with 10pF load capacitance and the CS06654-32M with 8pF load capacitance represent distinct electrical specifications within the same frequency and package family. Circuit design parameters, oscillator tank configuration, and load impedance calculations determine which load capacitance value is appropriate for the application.
Frequently Asked Questions (FAQ)
Q: Can CS06654-32M replace CS07977-32M in existing designs?
A: Mechanical and thermal compatibility is confirmed. Load capacitance differs (8pF versus 10pF). Circuit design validation is required to confirm electrical compatibility with the oscillator tank circuit and load impedance specifications.
Q: Are both parts suitable for automotive applications?
A: Both components carry AEC-Q200 ratings, confirming automotive-grade qualification. Both are RoHS compliant and carry MSL 1 (Unlimited) moisture sensitivity classification.
Q: What is the significance of the load capacitance difference?
A: Load capacitance is a critical parameter in crystal oscillator circuit design. The 2pF difference between the CS07977-32M (10pF) and CS06654-32M (8pF) affects oscillator frequency stability and startup characteristics. Circuit design parameters must accommodate the specified load capacitance value.
Q: Are both parts in active production?
A: Both the CS07977-32M and CS06654-32M are listed as Active products, confirming current manufacturing status and availability from NDK America, Inc.
Q: Do both parts use identical packaging?
A: Both components use 4-SMD, No Lead packaging with identical dimensions (2.00mm x 1.60mm) and maximum seated height (0.50mm), confirming PCB footprint compatibility.
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