TC-1.8432MBE-T Equivalent & Substitute Parts

Part Overview

The TC-1.8432MBE-T is a 1.8432 MHz MEMS-based XO (Standard) CMOS oscillator manufactured by TXC CORPORATION. This component operates at 3.3V with Enable/Disable functionality in a 4-SMD, No Lead surface mount package. The part is currently classified as Obsolete, necessitating identification of equivalent substitute components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

TC-1.8432MBE-T

TXC CORPORATIONIn Stock: 813TC-1.8432MBE-T Datasheet

Current PartRFQ

7X-1.8432MBE-T

TXC CORPORATIONIn Stock: 9547X-1.8432MBE-T Datasheet

DirectRFQ

ASE-1.8432MHZ-L-C-T

Abracon LLCIn Stock: 24206ASE-1.8432MHZ-L-C-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TC-1.8432MBE-T are qualified based on the following critical parameters:

Electrical Compatibility:

• Frequency: 1.8432 MHz (exact match required)
• Output: CMOS (exact match required)
• Supply Voltage: 3.3V (exact match required)
• Function: Enable/Disable (exact match required)
• Frequency Stability: ±50ppm (exact match required)
• Operating Temperature: -40°C ~ 85°C (exact match required)

Mechanical Compatibility:

• Package / Case: 4-SMD, No Lead (exact match required)
• Size / Dimension: 0.126" L x 0.098" W (3.20mm x 2.50mm) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• MSL: 1 (Unlimited) (exact match required)

Supply Current Consideration: The TC-1.8432MBE-T specifies a maximum supply current of 25mA. Substitute parts with lower maximum supply current values remain compatible, as they represent improved power efficiency within the same functional specification.

Parameter Comparison

Engineering Selection Recommendations

7X-1.8432MBE-T (TXC CORPORATION): This substitute maintains identical electrical specifications and mechanical form factor to the TC-1.8432MBE-T. The 7X series is currently Active, providing long-term availability. The component exhibits improved power efficiency with a maximum supply current of 20mA compared to 25mA. The seated height increases from 0.031" to 0.043", which requires verification of available PCB clearance in height-constrained applications. RoHS Compliance certification is provided. This part is suitable for direct replacement in applications where the additional 0.012" height does not create mechanical interference.

ASE-1.8432MHZ-L-C-T (Abracon LLC): This substitute provides equivalent electrical functionality with the same frequency, output type, supply voltage, and frequency stability. The ASE series is currently Active with significantly higher inventory availability (24144 pcs). The component demonstrates superior power efficiency with a maximum supply current of 7mA and specified disable current of 10µA. The seated height of 0.047" represents the maximum among the three options and requires clearance verification. ROHS3 and REACH compliance certifications are provided. This part is suitable for applications prioritizing power efficiency and long-term supply security. Packaging is supplied in Tape & Reel format.

Height Consideration: The TC-1.8432MBE-T specifies a seated height of 0.031". Both substitute parts exceed this dimension (7X at 0.043", ASE at 0.047"). PCB layout verification is required to confirm adequate clearance above the component mounting location.

Frequently Asked Questions (FAQ)

Q: Can the 7X-1.8432MBE-T directly replace the TC-1.8432MBE-T?

A: Yes. The 7X-1.8432MBE-T maintains identical electrical specifications (frequency, output type, supply voltage, function, frequency stability, operating temperature) and mechanical compatibility (package type, footprint dimensions, mounting type, MSL rating). The increase in seated height from 0.031" to 0.043" must be verified against available PCB clearance.

Q: Can the ASE-1.8432MHZ-L-C-T directly replace the TC-1.8432MBE-T?

A: Yes. The ASE-1.8432MHZ-L-C-T maintains identical electrical specifications and mechanical compatibility. The increase in seated height from 0.031" to 0.047" must be verified against available PCB clearance. This part offers superior power efficiency and higher inventory availability.

Q: What is the primary difference between the TC-1.8432MBE-T and its substitutes?

A: The TC-1.8432MBE-T uses a MEMS resonator, while both substitute parts (7X and ASE) use crystal resonators. All three components deliver identical electrical performance at the specified frequency and operating conditions. The MEMS-based TC part features the lowest seated height (0.031").

Q: Are there compliance differences between the substitute parts?

A: The 7X-1.8432MBE-T is RoHS Compliant and REACH Unaffected. The ASE-1.8432MHZ-L-C-T is ROHS3 Compliant and REACH Unaffected. The TC-1.8432MBE-T compliance status is not specified in available documentation.

Q: Which substitute part offers the best power efficiency?

A: The ASE-1.8432MHZ-L-C-T provides the lowest maximum supply current (7mA) and specifies a disable current of 10µA, compared to the TC-1.8432MBE-T (25mA) and 7X-1.8432MBE-T (20mA).

Q: What packaging formats are available?

A: The TC-1.8432MBE-T and 7X-1.8432MBE-T packaging format is not specified. The ASE-1.8432MHZ-L-C-T is supplied in Tape & Reel (TR) format.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the 4-SMD, No Lead package with identical footprint dimensions (0.126" L x 0.098" W / 3.20mm x 2.50mm) and identical pin configuration for Enable/Disable CMOS output at 3.3V.

Q: Which substitute should be selected for new designs?

A: For new designs, the ASE-1.8432MHZ-L-C-T is recommended based on Active product status, superior power efficiency, ROHS3 compliance, and high inventory availability. PCB layout must accommodate the 0.047" seated height.