AT-16.9344MAGE-T Equivalent & Substitute Parts

Part Overview

The AT-16.9344MAGE-T is a 16.9344 MHz crystal oscillator manufactured by TXC CORPORATION, designed for surface mount applications in the HC-49/US package. This component operates at a fundamental frequency with 12pF load capacitance and 50 Ohms equivalent series resistance, suitable for precision timing applications requiring AEC-Q200 compliance.

The AT-16.9344MAGE-T is classified as Obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this frequency specification.

Substiute Parts

AT-16.9344MAGE-T

TXC CORPORATIONIn Stock: 1202AT-16.9344MAGE-T Datasheet

Current PartRFQ

AX-16.9344MCGH-T

TXC CORPORATIONIn Stock: 1118AX-16.9344MCGH-T Datasheet

SimilarRFQ

AT-16.9344MAGE-T

FTSIn Stock: 2838AT-16.9344MAGE-T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AT-16.9344MAGE-T are identified based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Frequency: 16.9344 MHz (exact match required)
• Frequency Stability: ±50ppm (common specification across all variants)
• Operating Temperature Range: -40°C to 85°C (identical across all parts)
• AEC-Q200 Compliance: Required for automotive and industrial applications
• RoHS Compliance: Required for environmental and regulatory adherence

Secondary Compatibility Parameters:

• Load Capacitance: 12pF to 15pF (acceptable variance within circuit design tolerance)
• ESR: 50 to 80 Ohms (acceptable variance within oscillator circuit design)
• Operating Mode: Fundamental (consistent across all variants)
• Mounting Type: Surface Mount (consistent across all variants)

Substitutes are grouped into two categories: Similar Manufacturer Parts (different package or load capacitance) and Parametric Equivalents (identical electrical specifications from alternative manufacturers).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical and Mechanical Specifications):

The AT-16.9344MAGE-T manufactured by FTS is a parametric equivalent offering identical frequency tolerance (±30 ppm), load capacitance (12 pF), ESR (50 Ohms), and package dimensions (HC-49/US). This part maintains full compatibility with existing PCB layouts and circuit designs. FTS variant is currently Active in production status, ensuring long-term supply availability compared to the Obsolete TXC original.

For Alternative Package Consideration:

The AX-16.9344MCGH-T from TXC CORPORATION provides the same 16.9344 MHz frequency and operating temperature range with AEC-Q200 compliance. This part differs in load capacitance (15 pF vs. 12 pF) and ESR (80 Ohms vs. 50 Ohms), requiring circuit validation. The 2-SMD, No Lead package offers reduced height (1.50 mm vs. 4.10 mm), beneficial for space-constrained applications. Frequency tolerance is wider (±100 ppm vs. ±30 ppm), which may impact precision timing requirements. This part is currently Active in production.

Compliance and Certification:

All substitute parts maintain AEC-Q200 automotive-grade qualification and RoHS compliance, ensuring regulatory adherence for automotive, industrial, and consumer applications. Moisture Sensitivity Level (MSL) is 1 (Unlimited) across all variants, indicating no special handling requirements.

Frequently Asked Questions (FAQ)

Q: Can the AX-16.9344MCGH-T replace the AT-16.9344MAGE-T in all applications?

A: The AX-16.9344MCGH-T shares the same frequency (16.9344 MHz) and operating temperature range (-40 to 85°C). However, it differs in load capacitance (15 pF vs. 12 pF) and ESR (80 Ohms vs. 50 Ohms). These differences may affect oscillator startup behavior and frequency accuracy. Circuit validation is required before substitution. Additionally, the package is different (2-SMD, No Lead vs. HC-49/US), requiring PCB layout modification.

Q: What is the difference between frequency tolerance and frequency stability?

A: Frequency tolerance (±30 ppm or ±100 ppm) specifies the initial accuracy of the crystal at room temperature during manufacturing. Frequency stability (±50 ppm) specifies the maximum frequency variation across the operating temperature range (-40 to 85°C). Both parameters are provided in the specifications and must be considered for timing-critical applications.

Q: Is the FTS AT-16.9344MAGE-T a direct drop-in replacement?

A: Yes. The FTS variant matches the TXC original in frequency (16.9344 MHz), frequency tolerance (±30 ppm), load capacitance (12 pF), ESR (50 Ohms), package (HC-49/US), and dimensions (11.40 x 4.80 mm). No circuit or PCB modifications are required. The FTS part is currently Active in production, providing supply continuity for the Obsolete TXC original.

Q: What does AEC-Q200 compliance mean?

A: AEC-Q200 is an automotive-grade qualification standard for discrete semiconductors and passive components. All substitute parts listed meet this standard, ensuring reliability and performance in automotive and industrial applications operating across extended temperature ranges.

Q: How does package size affect component selection?

A: The AT-16.9344MAGE-T (TXC and FTS) uses HC-49/US package with dimensions 11.40 x 4.80 mm and height 4.10 mm. The AX-16.9344MCGH-T uses 2-SMD, No Lead package with dimensions 8.00 x 4.50 mm and height 1.50 mm. Package selection depends on PCB layout constraints, available board space, and design requirements. Switching packages requires PCB redesign and footprint modification.

Q: Are there moisture sensitivity concerns with these parts?

A: All listed parts have Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no special moisture handling or baking requirements. These parts can be stored and handled under standard conditions without moisture-related degradation.