AH-32.768KDZC-T Equivalent & Substitute Parts

Part Overview

The AH-32.768KDZC-T is a 32.768 kHz tuning fork crystal manufactured by TXC CORPORATION, designed for real-time clock (RTC) and timing applications requiring precise frequency stability. This Surface Mount Device (SMD) crystal operates at ±20ppm frequency tolerance with a 9pF load capacitance and 70 kOhms equivalent series resistance (ESR). The component is AEC-Q200 rated and RoHS compliant, with an active product status and 747 units currently in stock.

Substitute parts are identified when design requirements allow for alternative load capacitance values while maintaining identical frequency, tolerance, temperature range, ESR, package dimensions, and compliance certifications. This ensures functional compatibility in applications where the specific load capacitance specification permits flexibility.

Substiute Parts

AH-32.768KDZC-T

TXC CORPORATIONIn Stock: 807AH-32.768KDZC-T Datasheet

Current PartRFQ

AH-32.768KDZY-T

TXC CORPORATIONIn Stock: 2346AH-32.768KDZY-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AH-32.768KDZC-T is permitted only when the circuit design allows for a different load capacitance value. The substitute part AH-32.768KDZY-T maintains all critical electrical and mechanical parameters:

Fixed Parameters (Non-Negotiable for Substitution):

• Frequency: 32.768 kHz
• Frequency Tolerance: ±20ppm
• ESR: 70 kOhms
• Operating Temperature: -40°C to 85°C
• Package: 2-SMD, No Lead
• Physical Dimensions: 3.20mm x 1.50mm x 0.85mm (max height)
• Mounting: Surface Mount
• Certifications: AEC-Q200, RoHS Compliant, MSL 1

Variable Parameter (Allows Substitution):

• Load Capacitance: 9pF (main part) vs. 7pF (substitute part)

The load capacitance difference requires verification that the circuit's external capacitive network can accommodate the alternative value without affecting frequency accuracy or circuit stability.

Parameter Comparison

Engineering Selection Recommendations

Selection Criteria Based on Product Status and Compliance:

The AH-32.768KDZC-T is the primary specification when the circuit design requires a 9pF load capacitance. Both the main part and substitute part carry active product status from TXC CORPORATION and meet automotive-grade reliability standards (AEC-Q200).

The AH-32.768KDZY-T substitute is applicable only when the circuit topology permits operation with 7pF load capacitance. The substitute offers higher inventory availability (2293 units vs. 747 units) and maintains identical compliance certifications including RoHS3 compliance and REACH unaffected status.

Both parts are classified as MSL 1 (Unlimited moisture sensitivity), eliminating moisture-related handling constraints. Both carry identical ECCN (EAR99) and HTSUS classifications, ensuring equivalent export and tariff treatment.

Selection between these parts must be based on circuit load capacitance requirements, not on performance or reliability differences, as all electrical and mechanical specifications remain constant except for the load capacitance value.

Frequently Asked Questions (FAQ)

Q: Can I use AH-32.768KDZY-T as a direct replacement for AH-32.768KDZC-T?

A: Direct replacement is possible only if your circuit design accommodates a 7pF load capacitance instead of 9pF. The load capacitance value affects the external capacitive network required for proper crystal oscillation. Verify your circuit schematic and oscillator design specifications before substitution.

Q: What is the difference between these two crystals?

A: The only difference is load capacitance: AH-32.768KDZC-T requires 9pF, while AH-32.768KDZY-T requires 7pF. Frequency, tolerance, ESR, temperature range, package dimensions, and all certifications are identical.

Q: Are both parts AEC-Q200 rated?

A: Yes, both AH-32.768KDZC-T and AH-32.768KDZY-T carry AEC-Q200 automotive-grade qualification, suitable for automotive and industrial applications requiring reliability standards.

Q: What does MSL 1 mean?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture control requirements. Both parts can be stored and handled without desiccant packaging or moisture-controlled environments.

Q: Are there RoHS compliance differences?

A: Both parts are RoHS compliant. The main part is RoHS Compliant, and the substitute is ROHS3 Compliant. ROHS3 represents the current RoHS 2.0 directive standard. Both meet environmental compliance requirements.

Q: Which part should I choose if both are available?

A: Choose based on your circuit's load capacitance requirement. If your design specifies 9pF, use AH-32.768KDZC-T. If your design specifies 7pF, use AH-32.768KDZY-T. Do not select based on inventory availability alone.

Q: Can I use these crystals interchangeably in different designs?

A: No. Each crystal must match the load capacitance specified in its respective circuit design. Using the wrong load capacitance value will result in frequency error and circuit malfunction.

Q: What is the operating temperature range for both parts?

A: Both parts operate from -40°C to 85°C, suitable for industrial and automotive applications across extended temperature ranges.