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7C50070004 XTAL OSC XO 50.0000MHZ CMOS SMD Equivalent & Substitute Parts
Part Overview
The 7C50070004 is a 50 MHz crystal oscillator manufactured by TXC CORPORATION, designed for applications requiring a standard XO (Standard) CMOS oscillator with enable/disable functionality. This surface mount device operates at 3.3V supply voltage and is housed in a 4-SMD, No Lead package measuring 5.00mm x 3.20mm.
The part is currently in active production status with 1045 pieces available in new original inventory. Identification of equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and provide alternative sourcing options when the primary part becomes unavailable or when procurement requirements necessitate alternative manufacturers.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Frequency | 50 MHz |
| Output Type | CMOS |
| Supply Voltage | 3.3V |
| Function | Enable/Disable |
| Frequency Stability | ±30ppm |
| Operating Temperature Range | -20°C ~ 70°C |
| Package Type | 4-SMD, No Lead |
| Package Dimensions | 5.00mm x 3.20mm |
| Maximum Height | 1.40mm |
| Mounting Type | Surface Mount |
| Base Resonator | Crystal |
| RoHS Status | RoHS Compliant |
| MSL Rating | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the 7C50070004 is determined by strict equivalence across the following critical parameters:
Frequency Specification: The substitute part must operate at 50 MHz with identical frequency stability of ±30ppm.
Electrical Characteristics: Supply voltage must be 3.3V with CMOS output configuration and enable/disable function capability.
Physical Package: The substitute must use 4-SMD, No Lead package with dimensions of 5.00mm x 3.20mm and maximum seated height of 1.40mm to ensure PCB layout compatibility.
Operating Environment: Temperature range of -20°C to 70°C must be maintained.
Compliance Requirements: RoHS compliance status and MSL rating must be equivalent or superior to the original part.
The SXO53C3B271-50.000M manufactured by Suntsu Electronics, Inc. meets all these criteria and is classified as a direct substitute.
Parameter Comparison
| Parameter | 7C50070004 (TXC) | SXO53C3B271-50.000M (Suntsu) | Compatibility |
|---|---|---|---|
| Manufacturer | TXC CORPORATION | Suntsu Electronics, Inc. | Different manufacturer |
| Series | 7C | SXO53C | Different series |
| Frequency | 50 MHz | 50 MHz | Identical |
| Output Type | CMOS | CMOS | Identical |
| Supply Voltage | 3.3V | 3.3V | Identical |
| Function | Enable/Disable | Enable/Disable | Identical |
| Frequency Stability | ±30ppm | ±30ppm | Identical |
| Operating Temperature | -20°C ~ 70°C | -20°C ~ 70°C | Identical |
| Package Type | 4-SMD, No Lead | 4-SMD, No Lead | Identical |
| Package Dimensions | 5.00mm x 3.20mm | 5.00mm x 3.20mm | Identical |
| Maximum Height | 1.40mm | 1.40mm | Identical |
| Mounting Type | Surface Mount | Surface Mount | Identical |
| Base Resonator | Crystal | Crystal | Identical |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | Compatible (ROHS3 exceeds RoHS) |
| MSL Rating | 1 (Unlimited) | Not specified | Original part superior |
| Current - Supply (Max) | Not specified | 25mA | Substitute specified |
| Product Status | Active | Active | Both active |
Engineering Selection Recommendations
Primary Part (7C50070004): Recommended for new designs when TXC CORPORATION supply is confirmed and MSL 1 (Unlimited) moisture sensitivity rating is required. This part carries RoHS Compliant certification and is in active production with established inventory levels.
Substitute Part (SXO53C3B271-50.000M): Qualified as a direct functional equivalent when supply of the primary part is constrained or when design requirements permit alternative manufacturer sourcing. The Suntsu part meets or exceeds all critical electrical and mechanical parameters. ROHS3 compliance status indicates enhanced environmental compliance beyond the original RoHS specification. Current supply specification of 25mA maximum is provided for the substitute, enabling more precise power budget calculations.
Both parts are in active production status, ensuring long-term availability for production and support phases. Selection between these parts should be based on supply availability, cost considerations, and any manufacturer-specific qualification requirements within the end application.
Frequently Asked Questions (FAQ)
Q: Can the SXO53C3B271-50.000M be used as a direct replacement for the 7C50070004 on existing PCBs?
A: Yes. Both parts share identical package dimensions (5.00mm x 3.20mm), maximum height (1.40mm), and 4-SMD, No Lead configuration. PCB footprints and reflow profiles are compatible. No layout modifications are required.
Q: Are there differences in frequency stability between these parts?
A: No. Both parts specify ±30ppm frequency stability across the operating temperature range of -20°C to 70°C.
Q: What is the significance of ROHS3 compliance on the substitute part?
A: ROHS3 represents an updated version of the RoHS directive with enhanced environmental and substance restrictions. A ROHS3 compliant part exceeds RoHS Compliant requirements and is suitable for applications requiring either certification level.
Q: Does the 25mA maximum supply current specification on the substitute part affect compatibility?
A: No. The supply current specification on the substitute part provides additional design information for power budget calculations. The absence of this specification on the primary part does not indicate incompatibility; it reflects different datasheets from different manufacturers.
Q: Are both parts suitable for the same operating temperature range?
A: Yes. Both parts operate across -20°C to 70°C, ensuring thermal compatibility in equivalent applications.
Q: What is the MSL rating and why does it matter?
A: MSL (Moisture Sensitivity Level) 1 (Unlimited) on the primary part indicates the component can be stored indefinitely without moisture baking requirements. This is superior to higher MSL ratings and simplifies inventory management. The substitute part does not specify MSL in the provided data.
Q: Can these parts be used interchangeably in production?
A: Yes, provided supply chain and procurement processes are updated to recognize both part numbers as acceptable alternatives. Design documentation should be updated to reflect approved substitute parts.
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