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LFXTAL009650 16 MHz Crystal Equivalent & Substitute Parts
Part Overview
The LFXTAL009650 is a 16 MHz fundamental mode crystal oscillator manufactured by IQD Frequency Products, designed for surface mount applications in the CFPX-180 series. This active product operates across the industrial temperature range of -40°C to 85°C with a frequency tolerance of ±10ppm and load capacitance of 16pF. The component is packaged in a 4-SMD, No Lead configuration measuring 3.20mm × 2.50mm with a maximum seated height of 0.80mm.
Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support alternative sourcing strategies while maintaining electrical and mechanical compatibility within specified parameter tolerances.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Frequency | 16.0000 | MHz |
| Frequency Tolerance | ±10 | ppm |
| Frequency Stability | ±20 | ppm |
| Load Capacitance | 16 | pF |
| ESR (Equivalent Series Resistance) | 70 | Ohms |
| Operating Mode | Fundamental | — |
| Operating Temperature Range | -40 to 85 | °C |
| Mounting Type | Surface Mount | — |
| Package / Case | 4-SMD, No Lead | — |
| Size / Dimension | 3.20 × 2.50 | mm |
| Height - Seated (Max) | 0.80 | mm |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitute parts are classified into two categories based on electrical and mechanical parameter alignment with the LFXTAL009650:
Parametric Equivalents share identical or functionally equivalent electrical specifications: 16 MHz frequency, ±10ppm tolerance, 16pF load capacitance, 70 Ohms ESR, and 4-SMD No Lead package. These parts are direct functional replacements.
Similar Parts maintain the same frequency (16 MHz), frequency tolerance (±10ppm), operating temperature range (-40°C to 85°C), and package type (4-SMD, No Lead), but differ in load capacitance (12pF instead of 16pF) and/or ESR values. These parts require circuit design verification to confirm compatibility with the application's load capacitance requirements.
The substitution logic is based on the following critical parameters:
- Frequency: 16.0000 MHz (exact match required)
- Frequency Tolerance: ±10ppm (exact match required)
- Operating Temperature: -40°C to 85°C (exact match required)
- Package Type: 4-SMD, No Lead (exact match required)
- Load Capacitance: 16pF (parametric equivalents) or 12pF (similar parts)
- ESR: 70 Ohms (parametric equivalents) or alternative values (similar parts)
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Frequency (MHz) | Frequency Tolerance (ppm) | Load Capacitance (pF) | ESR (Ohms) | Package | Size (mm) | Height Max (mm) | Substitution Type |
|---|---|---|---|---|---|---|---|---|---|
| LFXTAL009650 | IQD Frequency Products | 16.0000 | ±10 | 16 | 70 | 4-SMD, No Lead | 3.20 × 2.50 | 0.80 | Main Part |
| LFXTAL009650REEL | IQD Frequency Products | 16.0000 | ±10 | 16 | 70 | 4-SMD, No Lead | 3.20 × 2.50 | 0.80 | Parametric Equivalent |
| ABM8-16.000MHZ-16-D1G-T | Abracon LLC | 16.0000 | ±10 | 16 | 70 | 4-SMD, No Lead | 3.20 × 2.50 | 0.80 | Parametric Equivalent |
| ECS-160-12-37-CTN-TR | ECS Inc. | 16.0000 | ±10 | 12 | 100 | 4-SMD, No Lead | 2.00 × 1.60 | 0.55 | Similar Part |
| ECS-160-12-37B-CTN-TR | ECS Inc. | 16.0000 | ±10 | 12 | 150 | 4-SMD, No Lead | 2.00 × 1.60 | 0.50 | Similar Part |
| ECS-160-12-37BQ-CTN-TR | ECS Inc. | 16.0000 | ±10 | 12 | 150 | 4-SMD, No Lead | 2.00 × 1.60 | 0.50 | Similar Part |
| TSX-3225 16.0000MF20X-W6 | EPSON | 16.0000 | ±10 | 12 | 60 | 4-SMD, No Lead | 3.20 × 2.50 | 0.60 | Similar Part |
Engineering Selection Recommendations
Parametric Equivalents (Direct Replacements):
LFXTAL009650REEL and ABM8-16.000MHZ-16-D1G-T are parametric equivalents with identical electrical specifications (16 MHz, ±10ppm, 16pF load capacitance, 70 Ohms ESR) and package dimensions. Both parts are active products with ROHS3 compliance. LFXTAL009650REEL is the same part in reel packaging format. ABM8-16.000MHZ-16-D1G-T is supplied in Cut Tape (CT) packaging and exhibits ±15ppm frequency stability compared to the main part's ±20ppm specification, representing improved performance.
Similar Parts (Load Capacitance Variation):
ECS-160-12-37-CTN-TR, ECS-160-12-37B-CTN-TR, ECS-160-12-37BQ-CTN-TR, and TSX-3225 16.0000MF20X-W6 maintain 16 MHz frequency and ±10ppm tolerance but specify 12pF load capacitance instead of 16pF. These parts are suitable only when the application circuit is designed for 12pF load capacitance. ECS-160-12-37BQ-CTN-TR includes AEC-Q200 automotive qualification, appropriate for automotive applications. TSX-3225 16.0000MF20X-W6 offers the lowest ESR at 60 Ohms, beneficial for low-power applications.
All substitute parts maintain the -40°C to 85°C operating temperature range and 4-SMD No Lead package configuration. Selection should be based on load capacitance requirements, ESR specifications, packaging format (Tape & Reel vs. Cut Tape), and application-specific certifications.
Frequently Asked Questions (FAQ)
Q: Can ECS-160-12-37-CTN-TR be used as a direct replacement for LFXTAL009650?
A: ECS-160-12-37-CTN-TR shares the same frequency (16 MHz), frequency tolerance (±10ppm), operating temperature range, and package type. However, it specifies 12pF load capacitance versus the LFXTAL009650's 16pF. Direct substitution is possible only if the application circuit is designed for 12pF load capacitance. Verify circuit design specifications before substitution.
Q: What is the difference between LFXTAL009650 and LFXTAL009650REEL?
A: Both parts are electrically and mechanically identical. The primary difference is packaging format: LFXTAL009650 is supplied in Tape & Reel (TR) format, while LFXTAL009650REEL is also Tape & Reel format. Both are suitable for automated assembly processes.
Q: Why do some substitute parts have different ESR values?
A: ESR (Equivalent Series Resistance) varies based on crystal design and manufacturing specifications. The LFXTAL009650 specifies 70 Ohms ESR. Substitute parts may have ESR values of 60, 100, or 150 Ohms. Lower ESR values reduce power consumption; higher values may affect circuit startup characteristics. Verify ESR compatibility with oscillator circuit design requirements.
Q: Is ABM8-16.000MHZ-16-D1G-T suitable for high-reliability applications?
A: ABM8-16.000MHZ-16-D1G-T is an active product with ROHS3 compliance and identical electrical specifications to the main part. It does not carry automotive (AEC-Q200) or military certifications. For high-reliability applications requiring specific certifications, verify compliance requirements against available substitute parts.
Q: Can TSX-3225 16.0000MF20X-W6 be used in space-constrained designs?
A: TSX-3225 16.0000MF20X-W6 maintains the same 3.20mm × 2.50mm footprint as the LFXTAL009650 but offers a lower maximum seated height of 0.60mm versus 0.80mm. This reduced height is advantageous for space-constrained applications. However, the 12pF load capacitance specification requires circuit design verification.
Q: What packaging formats are available for 16 MHz crystals in this series?
A: The LFXTAL009650 is supplied in Tape & Reel (TR) format for automated assembly. ABM8-16.000MHZ-16-D1G-T is available in Cut Tape (CT) format. ECS and EPSON parts are supplied in Tape & Reel format. Select packaging based on assembly process requirements and volume specifications.
Q: Are all substitute parts RoHS compliant?
A: All listed substitute parts are ROHS3 compliant. REACH status is unaffected for all parts. Verify compliance documentation for specific regulatory requirements in target markets.
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