7M25070073 Crystal 25.0000MHz 10pF SMD Equivalent & Substitute Parts

Part Overview

The 7M25070073 is a 25 MHz fundamental mode crystal oscillator manufactured by TXC CORPORATION, designed for surface mount applications with 10pF load capacitance. This Active product operates across the industrial temperature range of -40°C to 85°C with ±15ppm frequency stability and tolerance. The component is packaged in a 4-SMD, No Lead configuration measuring 3.20mm × 2.50mm with a maximum seated height of 0.80mm.

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter constraints of the application circuit, particularly when the main part experiences inventory limitations or when alternative sourcing is required for supply chain continuity.

Substiute Parts

7M25070073

TXC CORPORATIONIn Stock: 8777M25070073 Datasheet

Current PartRFQ

ECS-250-8-36-RWN-TR

ECS Inc.In Stock: 7994ECS-250-8-36-RWN-TR Datasheet

SimilarRFQ

ECS-250-8-37-RWN-TR

ECS Inc.In Stock: 3432ECS-250-8-37-RWN-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 7M25070073 are qualified based on the following critical electrical and mechanical parameters:

Primary Matching Criteria:

• Frequency: 25.0000 MHz (exact match required)
• Frequency Stability: ±15ppm (must equal or exceed specification)
• Frequency Tolerance: ±15ppm (must equal or exceed specification)
• Operating Temperature Range: -40°C to 85°C (must cover or exceed range)
• Mounting Type: Surface Mount (must match)
• Package / Case: 4-SMD, No Lead (must match)
• RoHS Status: RoHS Compliant or higher (must meet or exceed)
• Moisture Sensitivity Level: 1 (Unlimited) (must equal or exceed)

Secondary Consideration:

• Load Capacitance: The main part specifies 10pF. Substitute parts with 8pF load capacitance are functionally equivalent when the application circuit is designed for 8pF operation, as load capacitance is a design parameter determined by the oscillator circuit topology rather than an absolute constraint.

Both substitute parts (ECS-250-8-36-RWN-TR and ECS-250-8-37-RWN-TR) meet all primary matching criteria and are manufactured by ECS Inc., an established crystal oscillator supplier with equivalent compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Compliance and Certification Basis:

Both substitute parts exceed the compliance requirements of the main part. The 7M25070073 carries RoHS Compliant certification; both ECS substitutes carry ROHS3 Compliant certification, which represents a higher standard. All three parts are REACH Unaffected and classified under ECCN EAR99, meeting identical regulatory frameworks.

Product Status:

All three parts maintain Active product status, ensuring continued manufacturer support and availability through standard distribution channels.

Substitution Validity:

The ECS-250-8-36-RWN-TR and ECS-250-8-37-RWN-TR are valid electrical and mechanical substitutes for the 7M25070073 when the application circuit is designed or can be adapted for 8pF load capacitance operation. The identical frequency, stability, tolerance, temperature range, and package specifications establish functional equivalence. The lower ESR values (60 Ohms and 80 Ohms respectively) and smaller physical dimensions of the ECS parts represent performance improvements or space optimization opportunities.

Inventory Consideration:

The substitute parts demonstrate significantly higher inventory availability (7926 and 3361 units respectively) compared to the main part (856 units), supporting supply chain resilience objectives.

Frequently Asked Questions (FAQ)

Q: Can ECS-250-8-36-RWN-TR or ECS-250-8-37-RWN-TR be used as direct drop-in replacements for 7M25070073?

A: Both ECS parts are electrical and mechanical substitutes. However, the load capacitance difference (8pF versus 10pF) requires verification that the application oscillator circuit is designed for 8pF operation. If the circuit is tuned for 10pF, circuit adjustment or redesign may be necessary.

Q: What is the difference between ECS-250-8-36-RWN-TR and ECS-250-8-37-RWN-TR?

A: Both parts share identical frequency, stability, tolerance, and temperature specifications. The primary differences are ESR (60 Ohms versus 80 Ohms) and physical dimensions. ECS-250-8-36-RWN-TR measures 2.50 × 2.00 mm with 0.65 mm height; ECS-250-8-37-RWN-TR measures 2.00 × 1.60 mm with 0.55 mm height. Selection depends on space constraints and ESR requirements of the application circuit.

Q: Are all three parts RoHS compliant?

A: Yes. The 7M25070073 is RoHS Compliant. Both ECS substitutes are ROHS3 Compliant, which represents a higher compliance standard and ensures compatibility with RoHS-regulated applications.

Q: What is the significance of the Tape & Reel (TR) packaging for the ECS parts?

A: Tape & Reel packaging is standard for high-volume surface mount assembly operations. This packaging format is compatible with automated pick-and-place equipment used in manufacturing environments. If manual or alternative assembly methods are used, packaging format should be confirmed with the procurement or assembly team.

Q: Do all parts have the same moisture sensitivity level?

A: Yes. All three parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture-related handling restrictions during storage or assembly.

Q: What does ±15ppm frequency stability mean?

A: Frequency stability of ±15ppm indicates that the crystal oscillator output frequency will not deviate more than 15 parts per million from the nominal 25.0000 MHz across the specified operating temperature range (-40°C to 85°C). This specification is identical across all three parts.