8Z20070003 20 MHz Crystal Equivalent & Substitute Parts

Part Overview

The 8Z20070003 is a 20 MHz fundamental mode crystal oscillator manufactured by TXC CORPORATION, designed for surface mount applications in a 4-SMD, No Lead package. This active product operates across the temperature range of -20°C to 85°C with a load capacitance of 12pF and frequency stability of ±10ppm. The component is RoHS Compliant and carries MSL 1 (Unlimited) moisture sensitivity rating, making it suitable for standard manufacturing and storage conditions without special handling requirements.

Equivalent and substitute parts are identified to provide design flexibility, support supply chain continuity, and accommodate component availability variations across different procurement channels and manufacturing regions.

Substiute Parts

8Z20070003

TXC CORPORATIONIn Stock: 183788Z20070003 Datasheet

Current PartRFQ

FW2000008

Diodes IncorporatedIn Stock: 4175FW2000008 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 8Z20070003 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 20.0000 MHz (exact match required)
• Frequency Stability: ±10ppm (tolerance specification)
• Load Capacitance: 12pF (circuit design requirement)
• Operating Mode: Fundamental (oscillation characteristic)
• Operating Temperature Range: -20°C to 85°C (minimum requirement)
• Mounting Type: Surface Mount (assembly compatibility)
• Package Type: 4-SMD, No Lead (footprint compatibility)

Allowable Variation Parameters:

• ESR (Equivalent Series Resistance): Substitute parts may have lower ESR values while maintaining circuit performance
• Physical Dimensions: Minor variations within the 4-SMD, No Lead package specification are acceptable
• Packaging Format: Original packaging (Tape & Reel) may differ from substitute availability
• Manufacturer: Different manufacturers producing equivalent specifications

The substitute part FW2000008 meets all mandatory matching parameters and is therefore classified as a direct equivalent for the 8Z20070003.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: 8Z20070003 (TXC CORPORATION)

The 8Z20070003 is the specified component and maintains active product status with full RoHS Compliance and REACH Unaffected certification. This part is recommended for new designs and applications where TXC CORPORATION supply chain is established.

Equivalent Substitute: FW2000008 (Diodes Incorporated)

The FW2000008 is a direct functional equivalent meeting all mandatory electrical and mechanical parameters. This substitute is classified as ROHS3 Compliant, which exceeds the RoHS Compliance requirement of the primary part. The FW2000008 features a lower ESR value of 80 Ohms compared to the primary part's 100 Ohms, which represents improved electrical performance characteristics. The slightly smaller physical dimensions (2.00 x 1.60 mm versus 2.50 x 2.00 mm) remain within acceptable 4-SMD, No Lead package specifications and do not affect PCB footprint compatibility.

Both parts carry identical MSL 1 (Unlimited) ratings, identical ECCN and HTSUS classifications, and operate across the same temperature range. Selection between these parts is based on supply availability, procurement lead time, and established vendor relationships rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Can FW2000008 be used as a direct replacement for 8Z20070003 in existing designs?

A: Yes. The FW2000008 meets all mandatory electrical specifications including frequency, frequency stability, load capacitance, and operating temperature range. Both parts use identical 4-SMD, No Lead packaging with compatible PCB footprints. The lower ESR of the FW2000008 (80 Ohms versus 100 Ohms) represents improved performance and does not create compatibility issues.

Q: What is the significance of the ESR difference between these parts?

A: ESR (Equivalent Series Resistance) affects crystal oscillator startup characteristics and power consumption. The FW2000008's lower ESR of 80 Ohms provides faster startup and lower power dissipation compared to the 8Z20070003's 100 Ohms. This variation is within acceptable engineering tolerances for 20 MHz crystal applications and does not require circuit redesign.

Q: Are there physical footprint compatibility concerns with the dimensional differences?

A: No. Both parts use the 4-SMD, No Lead package type with identical maximum seated height of 0.55 mm. The FW2000008's slightly smaller planar dimensions (2.00 x 1.60 mm versus 2.50 x 2.00 mm) are accommodated within standard 4-SMD footprint specifications and do not affect PCB layout or assembly compatibility.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the 8Z20070003 and FW2000008 are RoHS Compliant (with FW2000008 meeting the more stringent ROHS3 standard), REACH Unaffected, and classified under identical ECCN (EAR99) and HTSUS (8541.60.0050) codes. Both carry MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What is the basis for substitution between these two parts?

A: Substitution is based on strict equivalence across critical electrical parameters: identical 20.0000 MHz frequency, ±10ppm frequency stability, 12pF load capacitance, fundamental operating mode, and -20°C to 85°C operating temperature range. Both parts are surface mount 4-SMD, No Lead components suitable for identical PCB applications.

Q: Which part should be selected for new procurement?

A: Selection depends on supply chain factors including component availability, procurement lead time, and established vendor relationships. From a technical standpoint, both parts are equivalent. The FW2000008 offers the advantage of lower ESR and ROHS3 compliance, while the 8Z20070003 maintains the original design specification.