7XZ-32.768KBA-T Equivalent & Substitute Parts

Part Overview

The 7XZ-32.768KBA-T is a 32.768 kHz crystal oscillator manufactured by TXC CORPORATION, designed for applications requiring precise timekeeping and low-frequency reference signals. This component is a CMOS-output XO (Standard) oscillator with 3.3V supply voltage, Enable/Disable functionality, and surface mount packaging in a 4-SMD, No Lead configuration.

The 7XZ-32.768KBA-T carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for existing applications and new designs requiring compatible functionality.

Substiute Parts

7XZ-32.768KBA-T

TXC CORPORATIONIn Stock: 78317XZ-32.768KBA-T Datasheet

Current PartRFQ

7XZ-32.768KBE-T

TXC CORPORATIONIn Stock: 174407XZ-32.768KBE-T Datasheet

SimilarRFQ

7XZ-32.768KCA-T

TXC CORPORATIONIn Stock: 12537XZ-32.768KCA-T Datasheet

SimilarRFQ

7XZ3270009

TXC CORPORATIONIn Stock: 10877XZ3270009 Datasheet

Parametric EquivalentRFQ

TC32L5I32K7680

CTS-Frequency ControlsIn Stock: 19189TC32L5I32K7680 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7XZ-32.768KBA-T is determined by the following critical parameters:

Primary Matching Criteria:

• Frequency: 32.768 kHz (exact match required)
• Output Type: CMOS (exact match required)
• Package Type: 4-SMD, No Lead (exact match required)
• Package Dimensions: 3.20mm x 2.50mm (exact match required)
• Function: Enable/Disable (exact match required)
• Mounting Type: Surface Mount (exact match required)

Secondary Compatibility Parameters:

• Supply Voltage: 3.3V (primary specification; 2.5V variants listed for reference only)
• Frequency Stability: ±25ppm or better
• Operating Temperature Range: Must encompass or exceed -10°C ~ 70°C
• Supply Current: 3mA maximum
• RoHS Compliance: Required
• MSL Rating: 1 (Unlimited)

Substitute parts are grouped into three categories based on their relationship to the main part: Similar Manufacturer Parts (same manufacturer, same series), Parametric Equivalents (same manufacturer, different series), and Direct Manufacturer Alternatives (different manufacturer, equivalent specifications).

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 7XZ-32.768KBE-T

The 7XZ-32.768KBE-T is the recommended primary substitute for the obsolete 7XZ-32.768KBA-T. Both parts share identical package specifications, frequency, output type, and supply voltage. The 7XZ-32.768KBE-T carries Active product status with significantly higher inventory availability (17428 units). The frequency stability specification of ±50ppm is broader than the main part's ±25ppm, but remains within acceptable tolerance for 32.768 kHz timekeeping applications. The extended operating temperature range (-40°C ~ 85°C) provides enhanced thermal performance compared to the main part's -10°C ~ 70°C range. RoHS compliance and MSL 1 rating are maintained.

Secondary Substitute: 7XZ3270009

The 7XZ3270009 is a parametric equivalent from TXC CORPORATION's 7X series. This part matches all critical electrical and mechanical parameters of the main part, including 32.768 kHz frequency, 3.3V supply, ±25ppm stability, and identical package dimensions. Active product status and RoHS compliance are confirmed. This option is suitable for applications where TXC CORPORATION series continuity is preferred.

Alternative Substitute: TC32L5I32K7680

The TC32L5I32K7680 from CTS-Frequency Controls is a direct manufacturer alternative meeting all primary matching criteria. This part provides identical frequency, output type, supply voltage, and package dimensions. The ±25ppm frequency stability and extended operating temperature range (-40°C ~ 85°C) align with enhanced performance requirements. ROHS3 compliance exceeds standard RoHS requirements. The maximum seated height of 1.20mm is 0.10mm greater than the main part; this difference must be evaluated against specific PCB layout constraints.

Not Recommended: 7XZ-32.768KCA-T

The 7XZ-32.768KCA-T operates at 2.5V supply voltage, which is incompatible with the 3.3V specification of the main part. This part is listed for reference only and is not suitable as a direct substitute without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can the 7XZ-32.768KBE-T replace the 7XZ-32.768KBA-T in existing designs?

A: Yes. Both parts share identical package specifications (3.20mm x 2.50mm, 4-SMD No Lead), frequency (32.768 kHz), output type (CMOS), supply voltage (3.3V), and Enable/Disable function. The 7XZ-32.768KBE-T's ±50ppm frequency stability is broader than the main part's ±25ppm specification but remains suitable for standard timekeeping applications. The extended operating temperature range provides additional thermal margin.

Q: What is the difference between the 7XZ-32.768KBE-T and 7XZ3270009?

A: Both are TXC CORPORATION products with identical electrical specifications (32.768 kHz, 3.3V, ±25ppm, CMOS output). The 7XZ-32.768KBE-T belongs to the 7XZ series, while the 7XZ3270009 belongs to the 7X series. The 7XZ-32.768KBE-T offers higher inventory availability. Selection between these parts depends on series preference and supply chain requirements.

Q: Is the TC32L5I32K7680 from CTS-Frequency Controls compatible with the main part?

A: Yes, with one mechanical consideration. The TC32L5I32K7680 meets all electrical specifications and package dimensions. However, its maximum seated height is 1.20mm compared to the main part's 1.10mm. This 0.10mm difference must be verified against PCB layout constraints, particularly in space-constrained applications or where component clearance is critical.

Q: Why is the 7XZ-32.768KCA-T listed but not recommended?

A: The 7XZ-32.768KCA-T operates at 2.5V supply voltage, while the main part and all recommended substitutes operate at 3.3V. Using this part would require circuit redesign and is not a direct substitute. It is listed only for reference in cases where 2.5V operation is intentionally required.

Q: What does the Obsolete status of the 7XZ-32.768KBA-T mean for my design?

A: Obsolete status indicates that TXC CORPORATION has discontinued this part. While existing inventory may be available (7733 units reported), long-term supply cannot be guaranteed. Transitioning to an Active-status substitute such as the 7XZ-32.768KBE-T or TC32L5I32K7680 ensures design sustainability and supply chain reliability for future production runs.

Q: Are all substitute parts RoHS compliant?

A: Yes. All recommended substitutes carry RoHS compliance certification. The TC32L5I32K7680 carries ROHS3 compliance, which exceeds standard RoHS requirements. All parts maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: Can I use the 7XZ-32.768KBE-T if my application requires ±25ppm frequency stability?

A: The 7XZ-32.768KBE-T specifies ±50ppm frequency stability, which is broader than ±25ppm. For applications with strict frequency stability requirements, the 7XZ3270009 or TC32L5I32K7680 are preferred, as both maintain ±25ppm specification.

Q: What is the inventory status of each substitute part?

A: TC32L5I32K7680 has the highest availability (19136 units), followed by 7XZ-32.768KBE-T (17428 units), 7XZ-32.768KBA-T (7733 units), and 7XZ3270009 (1036 units). The 7XZ-32.768KCA-T has limited availability (1163 units) and is not recommended for new designs.