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7M48000050 Crystal Oscillator - Equivalent & Substitute Parts
Part Overview
The 7M48000050 is a 48 MHz surface mount crystal oscillator manufactured by TXC CORPORATION. This component operates at a fundamental frequency of 48 MHz with a load capacitance of 10pF and frequency stability of ±20ppm. The device is housed in a compact 4-SMD, No Lead package measuring 3.20mm x 2.50mm with a maximum seated height of 0.80mm. The part maintains Active product status and is RoHS Compliant with MSL 1 (Unlimited) moisture sensitivity rating. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, inventory management, or supply chain continuity.
Substiute Parts
Key Parameters
| Parameter | Value | Significance for Substitution |
|---|---|---|
| Frequency | 48 MHz | Critical - must match exactly |
| Frequency Stability | ±20ppm | Critical - determines timing accuracy |
| Load Capacitance | 10pF | Critical - affects circuit matching |
| Mounting Type | Surface Mount | Critical - determines assembly compatibility |
| Package / Case | 4-SMD, No Lead | Critical - physical footprint requirement |
| Operating Temperature Range | -20°C ~ 70°C | Important - defines operational limits |
| RoHS Status | RoHS Compliant | Important - regulatory compliance |
| MSL Rating | 1 (Unlimited) | Important - storage and handling requirements |
Substitute Part Grouping Explanation
Substitution eligibility for the 7M48000050 is determined by strict alignment of critical electrical and mechanical parameters. The substitute part 425F22A048M0000 qualifies based on the following criteria:
Critical Parameters (Must Match):
- Frequency: 48 MHz (exact match required)
- Frequency Stability: ±20ppm (exact match required)
- Load Capacitance: 10pF (exact match required)
- Package Type: 4-SMD, No Lead (exact match required)
- Mounting Type: Surface Mount (exact match required)
Compliance Parameters (Must Meet or Exceed):
- Operating Temperature Range: -20°C ~ 70°C (substitute meets requirement)
- RoHS Status: RoHS Compliant (substitute is ROHS3 Compliant, exceeds requirement)
- MSL Rating: 1 (Unlimited) (substitute matches requirement)
The substitute part 425F22A048M0000 manufactured by CTS-Frequency Controls satisfies all mandatory substitution criteria and maintains equivalent functional performance within the specified operating envelope.
Parameter Comparison
| Parameter | 7M48000050 (TXC) | 425F22A048M0000 (CTS-Frequency Controls) | Compatibility |
|---|---|---|---|
| Frequency | 48 MHz | 48 MHz | Equivalent |
| Frequency Stability | ±20ppm | ±20ppm | Equivalent |
| Frequency Tolerance | ±20ppm | ±20ppm | Equivalent |
| Load Capacitance | 10pF | 10pF | Equivalent |
| Operating Temperature Range | -20°C ~ 70°C | -20°C ~ 70°C | Equivalent |
| Mounting Type | Surface Mount | Surface Mount | Equivalent |
| Package / Case | 4-SMD, No Lead | 4-SMD, No Lead | Equivalent |
| Size / Dimension | 3.20mm x 2.50mm | 2.50mm x 2.00mm | Substitute is smaller |
| Height - Seated (Max) | 0.80mm | 0.65mm | Substitute is lower profile |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | Substitute exceeds requirement |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | Equivalent |
| Product Status | Active | Active | Both actively manufactured |
Engineering Selection Recommendations
Both the 7M48000050 and 425F22A048M0000 maintain Active product status with current manufacturing support. Selection between these parts should be based on the following engineering considerations:
7M48000050 (TXC CORPORATION):
- Standard footprint dimensions (3.20mm x 2.50mm) suitable for conventional PCB layouts
- Established supply chain with 1054 units in current inventory
- RoHS Compliant certification meets standard regulatory requirements
425F22A048M0000 (CTS-Frequency Controls):
- Compact footprint (2.50mm x 2.00mm) with lower profile (0.65mm) for space-constrained applications
- Enhanced inventory availability with 4057 units in stock
- ROHS3 Compliant certification exceeds baseline RoHS requirements
- Specified ESR of 60 Ohms provides additional circuit design parameter
Both parts satisfy identical electrical specifications and operating temperature requirements. The substitute part offers physical advantages in applications requiring reduced board space or lower component height. Selection should prioritize existing PCB design constraints and supply chain preferences.
Frequently Asked Questions (FAQ)
Q: Can 425F22A048M0000 be used as a direct replacement for 7M48000050 in existing designs?
A: Yes, provided the PCB layout accommodates the smaller footprint (2.50mm x 2.00mm versus 3.20mm x 2.50mm). The electrical specifications are equivalent, and the lower profile (0.65mm versus 0.80mm) presents no functional incompatibility. PCB pad layout verification is required before implementation.
Q: What is the significance of the ESR specification listed for the CTS part?
A: The ESR (Equivalent Series Resistance) of 60 Ohms for the 425F22A048M0000 is a circuit design parameter that affects oscillator startup characteristics and power consumption. This specification is not provided for the 7M48000050 in the available data. Both parts operate within the same frequency stability and load capacitance parameters required for standard 48 MHz applications.
Q: Are there any compliance differences between these parts?
A: The 425F22A048M0000 carries ROHS3 Compliant certification, which represents an enhanced compliance standard compared to the standard RoHS Compliant rating of the 7M48000050. Both parts are REACH Unaffected and classified as EAR99 for export purposes. Both maintain MSL 1 (Unlimited) moisture sensitivity ratings.
Q: What packaging format differences exist?
A: The 7M48000050 is supplied in standard packaging format. The 425F22A048M0000 is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly operations. This packaging difference does not affect component functionality but may influence procurement and handling procedures.
Q: Are both parts suitable for the full -20°C to 70°C operating temperature range?
A: Yes, both the 7M48000050 and 425F22A048M0000 are specified for operation across the identical -20°C to 70°C temperature range. Frequency stability of ±20ppm is maintained throughout this operating envelope for both parts.
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