7M38400010 38.4 MHz Crystal 10pF SMD Equivalent & Substitute Parts

Part Overview

The TXC CORPORATION 7M38400010 is a 38.4 MHz crystal oscillator in 4-SMD, No Lead surface mount package with 10pF load capacitance. This component is classified as Active product status and is RoHS Compliant. The 38.4 MHz frequency with ±10ppm tolerance and ±15ppm stability serves timing and clock generation applications requiring precise frequency control across industrial and commercial temperature ranges (-40°C to 85°C). Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit component variation within specified electrical and mechanical parameters.

Substiute Parts

7M38400010

TXC CORPORATIONIn Stock: 35567M38400010 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7M38400010 is determined by the following critical parameters:

Primary Matching Criteria:

• Frequency: 38.4 MHz (exact match required)
• Frequency Tolerance: ±10ppm (exact match required)
• Frequency Stability: ±15ppm (exact match required)
• Load Capacitance: 10pF (exact match required for direct substitution)
• Operating Temperature Range: -40°C to 85°C (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Package / Case: 4-SMD, No Lead (exact match required)

Secondary Compatibility Parameters:

• ESR (Equivalent Series Resistance): Varies by substitute (35 to 60 Ohms)
• Physical Dimensions: May vary within package classification
• Packaging Format: Tape & Reel or Cut Tape acceptable
• RoHS Compliance: All substitutes maintain ROHS3 Compliant status

Substitutes with identical primary parameters are considered direct equivalents. Parts with differing load capacitance values (8pF, 9pF, 12pF) are listed as available alternatives but require circuit design verification for load capacitance compatibility.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (10pF Load Capacitance):

The following parts are direct electrical equivalents with identical frequency, tolerance, stability, load capacitance, and operating temperature specifications:

• Q 38,40-JXS21-10-10/15-T1-FU-WA-LF (Jauch Quartz): Smallest footprint (2.00 x 1.60mm), 50 Ohms ESR, ROHS3 Compliant, 53,101 units in stock
• Q 38,40-JXS22-10-10/15-T1-FU-WA-LF (Jauch Quartz): Mid-size footprint (2.50 x 2.00mm), 40 Ohms ESR, ROHS3 Compliant, 7,213 units in stock
• Q 38,40-JXS32-10-10/15-T1-FU-WA-LF (Jauch Quartz): Matches original dimensions (3.20 x 2.50mm), 35 Ohms ESR, ROHS3 Compliant, 1,631 units in stock
• 402F3841XIAR (CTS-Frequency Controls): Compact footprint (2.00 x 1.60mm), 60 Ohms ESR, ROHS3 Compliant, 6,664 units in stock

All direct equivalents maintain Active product status and REACH Unaffected classification.

Alternative Load Capacitance Options:

The following parts share identical frequency, tolerance, stability, and operating temperature but differ in load capacitance specification:

• Q 38,40-JXS32-9-10/15-T1-FU-WA-LF: 9pF load capacitance, 35 Ohms ESR
• Q 38,40-JXS32-8-10/15-T1-FU-WA-LF: 8pF load capacitance, 35 Ohms ESR
• Q 38,40-JXS21-9-10/15-T1-FU-WA-LF: 9pF load capacitance, 50 Ohms ESR
• Q 38,40-JXS32-12-10/15-T1-FU-WA-LF: 12pF load capacitance, 35 Ohms ESR

Selection of alternative load capacitance parts requires verification that the circuit design accommodates the specified load capacitance value.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 7M38400010 with any of the listed parts?

A: Direct substitution is possible with parts maintaining identical load capacitance (10pF). These include Q 38,40-JXS21-10-10/15-T1-FU-WA-LF, Q 38,40-JXS22-10-10/15-T1-FU-WA-LF, Q 38,40-JXS32-10-10/15-T1-FU-WA-LF, and 402F3841XIAR. All maintain the same frequency (38.4 MHz), tolerance (±10ppm), stability (±15ppm), and operating temperature range (-40°C to 85°C).

Q: What is the difference between the substitute parts with 10pF load capacitance?

A: The primary differences are physical dimensions and ESR (Equivalent Series Resistance). Q 38,40-JXS21-10-10/15-T1-FU-WA-LF and 402F3841XIAR offer the smallest footprint (2.00 x 1.60mm). Q 38,40-JXS22-10-10/15-T1-FU-WA-LF provides a mid-size option (2.50 x 2.00mm). Q 38,40-JXS32-10-10/15-T1-FU-WA-LF matches the original part dimensions (3.20 x 2.50mm). ESR values range from 35 to 60 Ohms depending on the part selected.

Q: Can I use parts with different load capacitance values (8pF, 9pF, 12pF)?

A: Parts with load capacitance values other than 10pF are listed as available alternatives. However, the circuit design must be verified to confirm compatibility with the specified load capacitance. Load capacitance affects the crystal's operating frequency and stability characteristics within the circuit.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts maintain ROHS3 Compliant status. The original 7M38400010 is RoHS Compliant. All parts are REACH Unaffected and classified under ECCN EAR99.

Q: What is the Moisture Sensitivity Level for these parts?

A: All parts, including the original 7M38400010 and all substitutes, are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.

Q: Which substitute offers the best availability?

A: Q 38,40-JXS21-10-10/15-T1-FU-WA-LF (Jauch Quartz) provides the highest inventory with 53,101 units in stock. This part is a direct 10pF equivalent with the smallest footprint option.

Q: Do the substitute parts have different operating modes?

A: All substitute parts operate in Fundamental mode, consistent with the original 7M38400010 specification.

Q: What packaging formats are available for the substitute parts?

A: Substitute parts are available in Tape & Reel (TR) format or Cut Tape (CT) & Digi-Reel® format. The original 7M38400010 packaging format is not specified in the provided data. Verify packaging requirements for your procurement process.