7X-100.000MBA-T Crystal Oscillator Equivalent & Substitute Parts

Part Overview

The 7X-100.000MBA-T is a 100 MHz XO (Standard) CMOS oscillator manufactured by TXC CORPORATION. This surface mount crystal oscillator operates at 3.3V with enable/disable functionality and is housed in a 4-SMD, No Lead package. The device is currently in active production status with RoHS compliance and MSL 1 moisture sensitivity rating.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same frequency, output type, supply voltage, and package configuration. This ensures direct functional replacement without circuit redesign.

Key Parameters

Parameter	Value	Unit
Frequency	100.0000	MHz
Output Type	CMOS	—
Supply Voltage	3.3	V
Function	Enable/Disable	—
Frequency Stability	±25	ppm
Operating Temperature Range	-10 to 70	°C
Package Type	4-SMD, No Lead	—
Package Dimensions	3.20 x 2.50	mm
Mounting Type	Surface Mount	—
Base Resonator	Crystal	—

Substitute Part Grouping Explanation

Substitution eligibility for the 7X-100.000MBA-T is determined by strict equivalence across the following critical parameters:

Frequency: 100 MHz (exact match required)
Output Configuration: CMOS logic level
Supply Voltage: 3.3V operation
Functional Control: Enable/Disable capability
Frequency Stability: ±25 ppm tolerance
Operating Temperature: -10°C to 70°C range
Package Specification: 4-SMD, No Lead form factor
Physical Dimensions: 3.20mm L × 2.50mm W (footprint compatibility)

The substitute part SXO32C3C171-100.000M from Suntsu Electronics, Inc. meets all these criteria and is classified as a direct equivalent.

Parameter Comparison

Parameter	7X-100.000MBA-T (TXC)	SXO32C3C171-100.000M (Suntsu)	Match Status
Manufacturer	TXC CORPORATION	Suntsu Electronics, Inc.	Different
Frequency	100 MHz	100 MHz	Equivalent
Output Type	CMOS	CMOS	Equivalent
Supply Voltage	3.3V	3.3V	Equivalent
Function	Enable/Disable	Enable/Disable	Equivalent
Frequency Stability	±25 ppm	±25 ppm	Equivalent
Operating Temperature	-10°C to 70°C	-10°C to 70°C	Equivalent
Package Type	4-SMD, No Lead	4-SMD, No Lead	Equivalent
Dimensions (L × W)	3.20 × 2.50 mm	3.20 × 2.50 mm	Equivalent
Height - Seated (Max)	1.10 mm	1.20 mm	Compatible
Current - Supply (Max)	20 mA	25 mA	Compatible
Mounting Type	Surface Mount	Surface Mount	Equivalent
Product Status	Active	Active	Equivalent
RoHS Status	RoHS Compliant	ROHS3 Compliant	Equivalent
ECCN	EAR99	EAR99	Equivalent
HTSUS Code	8542.39.0001	8542.39.0001	Equivalent

Engineering Selection Recommendations

Primary Selection: 7X-100.000MBA-T

The TXC 7X-100.000MBA-T is the original specified component. It is actively manufactured, RoHS Compliant, and carries MSL 1 moisture sensitivity rating. Current inventory availability is 634 units in Tape & Reel packaging.

Substitute Selection: SXO32C3C171-100.000M

The Suntsu SXO32C3C171-100.000M is a direct functional equivalent meeting all electrical and mechanical specifications. Key considerations:

Maintains identical frequency (100 MHz), output type (CMOS), supply voltage (3.3V), and package footprint (3.20 × 2.50 mm)
Maximum supply current is 5 mA higher (25 mA vs. 20 mA), which is acceptable for most circuit designs
Seated height is 0.10 mm greater (1.20 mm vs. 1.10 mm), compatible with standard PCB clearance specifications
ROHS3 Compliant status exceeds RoHS Compliance requirements
Inventory availability is significantly higher at 4,824 units
Supplied in Bulk packaging (alternative to Tape & Reel)

Both parts are active products with equivalent regulatory compliance (EAR99, HTSUS 8542.39.0001).

Frequently Asked Questions (FAQ)

Q: Can the SXO32C3C171-100.000M replace the 7X-100.000MBA-T in existing designs?

A: Yes. Both oscillators share identical frequency (100 MHz), output logic (CMOS), supply voltage (3.3V), enable/disable function, frequency stability (±25 ppm), operating temperature range (-10°C to 70°C), and package footprint (3.20 × 2.50 mm, 4-SMD No Lead). The substitute is electrically and mechanically compatible.

Q: What are the differences between these two parts?

A: The primary differences are manufacturer (TXC vs. Suntsu), maximum supply current (20 mA vs. 25 mA), seated height (1.10 mm vs. 1.20 mm), packaging format (Tape & Reel vs. Bulk), and RoHS certification level (RoHS Compliant vs. ROHS3 Compliant). All differences are within acceptable engineering tolerances for direct substitution.

Q: Is the higher maximum supply current of the Suntsu part a concern?

A: No. The SXO32C3C171-100.000M maximum supply current of 25 mA is higher than the TXC part's 20 mA specification. This does not create compatibility issues; the substitute will draw current within its rated maximum, and the circuit power supply must be designed to accommodate the higher specification.

Q: Does the 0.10 mm height difference affect PCB assembly?

A: No. The Suntsu part seated height of 1.20 mm versus the TXC part's 1.10 mm is within standard PCB clearance tolerances. Both parts use identical footprints and will assemble on the same PCB layout without modification.

Q: Are both parts currently in production?

A: Yes. Both the 7X-100.000MBA-T and SXO32C3C171-100.000M are active products with current manufacturing status and regulatory compliance certifications.

Q: What is the difference between Tape & Reel and Bulk packaging?

A: Tape & Reel packaging is used for automated assembly lines and provides components on continuous carrier tape. Bulk packaging supplies loose components. Both packaging formats contain the same oscillator; the choice depends on assembly process requirements and order quantity.

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