CPPFXC4T-A7BR-4.0TS Equivalent & Substitute Parts

Part Overview

The CPPFXC4T-A7BR-4.0TS is a 4 MHz XO (Standard) CMOS oscillator manufactured by Cardinal Components Inc., designed for through-hole applications requiring crystal-based frequency generation with enable/disable functionality. This component operates at 5V supply voltage with CMOS output logic levels and is rated for industrial temperature ranges from -40°C to 85°C.

The CPPFXC4T-A7BR-4.0TS carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this oscillator.

Substiute Parts

CPPFXC4T-A7BR-4.0TS

Cardinal Components Inc.In Stock: 1248CPPFXC4T-A7BR-4.0TS Datasheet

Current PartRFQ

MXO45HST-3I-4M000000

CTS-Frequency ControlsIn Stock: 999MXO45HST-3I-4M000000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CPPFXC4T-A7BR-4.0TS is determined by the following critical parameters:

• Frequency Match: 4 MHz (exact match required)
• Output Logic Level: CMOS or HCMOS/TTL compatible output
• Supply Voltage: 5V operation
• Enable/Disable Function: Required control capability
• Operating Temperature Range: -40°C to 85°C minimum
• Mounting Configuration: Through-hole 8-DIP package with 4 leads
• Physical Dimensions: Compatible footprint (0.520" L x 0.520" W)

The MXO45HST-3I-4M000000 meets these substitution criteria. While it specifies HCMOS/TTL output (versus CMOS), both output types are compatible with 5V logic systems. The frequency stability specification differs (±50ppm versus ±25ppm), representing a relaxed tolerance that remains within acceptable operating parameters for most 4 MHz oscillator applications. The substitute part maintains identical frequency, supply voltage, enable/disable functionality, operating temperature range, and through-hole 8-DIP package configuration.

Parameter Comparison

Engineering Selection Recommendations

The MXO45HST-3I-4M000000 is the qualified substitute for the obsolete CPPFXC4T-A7BR-4.0TS based on the following factors:

Product Status: The substitute part carries Active product status, ensuring ongoing availability and manufacturer support, whereas the original part is Obsolete.

Compliance & Certifications: Both parts maintain RoHS compliance (RoHS Compliant and ROHS3 Compliant respectively) and identical Moisture Sensitivity Level (MSL 1 - Unlimited), supporting equivalent environmental and regulatory requirements.

Electrical Compatibility: The substitute part operates at identical frequency (4 MHz), supply voltage (5V), and temperature range (-40°C to 85°C). The HCMOS/TTL output is compatible with 5V logic systems that accept CMOS inputs. The relaxed frequency stability (±50ppm versus ±25ppm) is acceptable for standard 4 MHz oscillator applications.

Physical Compatibility: Both parts utilize through-hole 8-DIP packages with 4 leads and identical footprint dimensions (0.520" x 0.520"), ensuring direct PCB layout compatibility. The substitute part's reduced height (0.240" versus 0.256") presents no clearance concerns.

Performance Advantages: The substitute part demonstrates lower supply current (26mA versus 45mA) and significantly lower disable-mode current (10µA versus 50µA), offering improved power efficiency in battery-powered or low-power applications.

Frequently Asked Questions (FAQ)

Q: Can the MXO45HST-3I-4M000000 directly replace the CPPFXC4T-A7BR-4.0TS without circuit modifications?

A: Yes. Both parts operate at 5V, generate 4 MHz output with enable/disable control, and utilize identical through-hole 8-DIP package footprints. HCMOS/TTL output is compatible with circuits designed for CMOS logic levels at 5V. No circuit modifications are required.

Q: What is the significance of the frequency stability difference (±25ppm versus ±50ppm)?

A: Frequency stability defines the maximum deviation from the nominal 4 MHz frequency across operating conditions. The original part specifies ±25ppm; the substitute specifies ±50ppm. For most standard 4 MHz oscillator applications, ±50ppm remains within acceptable tolerance. Applications requiring tighter frequency control should evaluate specific system requirements.

Q: Are there physical clearance concerns due to the height difference?

A: No. The substitute part is 0.016" (0.40mm) shorter than the original (0.240" versus 0.256" seated height). This reduced height presents no clearance issues and may provide additional margin in space-constrained designs.

Q: What are the power consumption implications of using the substitute part?

A: The MXO45HST-3I-4M000000 consumes less supply current (26mA versus 45mA) during normal operation and significantly less current in disable mode (10µA versus 50µA). This results in lower power dissipation and reduced thermal load, beneficial for power-sensitive applications.

Q: Are both parts RoHS compliant?

A: Yes. The original CPPFXC4T-A7BR-4.0TS is RoHS Compliant. The substitute MXO45HST-3I-4M000000 is ROHS3 Compliant, representing current RoHS directive compliance. Both parts meet environmental and regulatory requirements for RoHS-restricted applications.

Q: What is the inventory status for the substitute part?

A: The MXO45HST-3I-4M000000 has 953 pieces in new original stock and carries Active product status, ensuring reliable long-term availability compared to the Obsolete original part.