Equivalent & Substitute Parts for 7W-40.000MBA-T

Part Overview

The 7W-40.000MBA-T is a 40 MHz crystal oscillator (XO) manufactured by TXC CORPORATION, designed for CMOS applications requiring 3.3V supply with Enable/Disable functionality. This component operates across the temperature range of -10°C to 70°C with a frequency stability of ±25ppm and maximum supply current of 20mA. The part is packaged in a 4-SMD, No Lead configuration with surface mount mounting type.

The 7W-40.000MBA-T is classified as Obsolete. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this oscillator specification.

Substiute Parts

7W-40.000MBA-T

TXC CORPORATIONIn Stock: 8537W-40.000MBA-T Datasheet

Current PartRFQ

7X-40.000MBA-T

TXC CORPORATIONIn Stock: 7677X-40.000MBA-T Datasheet

DirectRFQ

7X-40.000MBB-T

TXC CORPORATIONIn Stock: 11097X-40.000MBB-T Datasheet

SimilarRFQ

SXO75C3C171-40.000M

Suntsu Electronics, Inc.In Stock: 1425SXO75C3C171-40.000M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7W-40.000MBA-T is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 40 MHz
• Output Type: CMOS
• Supply Voltage: 3.3V
• Function: Enable/Disable
• Package Type: 4-SMD, No Lead
• Mounting Type: Surface Mount
• Operating Temperature Range: -10°C ~ 70°C

Allowable Variation Parameters:

• Frequency Stability: ±25ppm (main part) to ±50ppm (substitute acceptable)
• Maximum Supply Current: 20mA (main part) to 25mA (substitute acceptable)
• Physical Dimensions: Variations permitted within SMD package constraints
• Packaging Format: Cut Tape (CT) & Digi-Reel® (main) to Tape & Reel (TR) or Bulk (substitutes)
• Product Status: Obsolete (main) to Active (substitutes)

Three substitute parts meet these criteria and are grouped as follows:

Group 1 - Direct Equivalents (Same Manufacturer, Active Status):

• 7X-40.000MBA-T (TXC CORPORATION)
• 7X-40.000MBB-T (TXC CORPORATION)

Group 2 - Cross-Manufacturer Equivalent (Active Status):

• SXO75C3C171-40.000M (Suntsu Electronics, Inc.)

Parameter Comparison

Engineering Selection Recommendations

For Active Product Designs:

The 7X-40.000MBA-T is the primary recommended substitute. This part is manufactured by TXC CORPORATION (same manufacturer as the main part), maintains Active product status, and provides identical electrical specifications including ±25ppm frequency stability and 20mA maximum supply current. The 7X-40.000MBA-T is available in Tape & Reel (TR) packaging format with 702 units in current inventory. Physical dimensions are reduced (3.20mm x 2.50mm versus 7.00mm x 5.00mm), which may require PCB layout verification for space-constrained applications.

For Applications with Relaxed Frequency Stability Requirements:

The 7X-40.000MBB-T is suitable for designs where ±50ppm frequency stability is acceptable. This part maintains all other electrical equivalence with the main part and offers the highest current inventory (1063 units). The reduced physical dimensions (3.20mm x 2.50mm) apply to this part as well.

For Cross-Manufacturer Substitution:

The SXO75C3C171-40.000M (Suntsu Electronics, Inc.) provides electrical equivalence with ±25ppm frequency stability and maintains the original physical dimensions (7.00mm x 5.00mm) of the 7W-40.000MBA-T. This part has maximum supply current of 25mA, which is within acceptable tolerance for applications designed for 20mA operation. The SXO75C3C171-40.000M carries ROHS3 compliance and is available in Bulk packaging with 1409 units in inventory.

All substitute parts are RoHS compliant and suitable for surface mount assembly processes. Selection should be based on PCB layout constraints, packaging format requirements, and frequency stability tolerance of the target application.

Frequently Asked Questions (FAQ)

Q1: Can the 7X-40.000MBA-T be used as a direct replacement for the 7W-40.000MBA-T?

A: Yes. The 7X-40.000MBA-T is electrically equivalent to the 7W-40.000MBA-T across all critical parameters: 40 MHz frequency, CMOS output, 3.3V supply, Enable/Disable function, ±25ppm frequency stability, and 20mA maximum supply current. Both parts use identical 4-SMD, No Lead packaging and surface mount mounting. The primary difference is physical dimensions (3.20mm x 2.50mm versus 7.00mm x 5.00mm), which requires verification that the PCB footprint accommodates the smaller package size.

Q2: What is the difference between the 7X-40.000MBA-T and 7X-40.000MBB-T?

A: Both parts are manufactured by TXC CORPORATION and share identical electrical specifications except for frequency stability. The 7X-40.000MBA-T provides ±25ppm stability, while the 7X-40.000MBB-T provides ±50ppm stability. Both parts have identical physical dimensions (3.20mm x 2.50mm), supply voltage (3.3V), maximum supply current (20mA), and operating temperature range (-10°C to 70°C). Selection between these parts depends on the frequency stability tolerance required by the application.

Q3: Is the SXO75C3C171-40.000M compatible with designs using the 7W-40.000MBA-T?

A: Yes. The SXO75C3C171-40.000M is electrically compatible with the 7W-40.000MBA-T. Both parts operate at 40 MHz with CMOS output, 3.3V supply, Enable/Disable function, and ±25ppm frequency stability across the -10°C to 70°C temperature range. The SXO75C3C171-40.000M has a maximum supply current of 25mA (versus 20mA for the main part), which is acceptable for applications designed for 20mA operation. Physical dimensions are identical (7.00mm x 5.00mm), eliminating PCB layout concerns. The primary difference is manufacturer (Suntsu Electronics, Inc. versus TXC CORPORATION).

Q4: What packaging formats are available for these substitute parts?

A: The 7W-40.000MBA-T is supplied in Cut Tape (CT) & Digi-Reel® format. The 7X-40.000MBA-T and 7X-40.000MBB-T are supplied in Tape & Reel (TR) format. The SXO75C3C171-40.000M is supplied in Bulk format. Packaging format selection depends on assembly process requirements and order quantity. Tape & Reel and Bulk formats are standard for high-volume production environments.

Q5: Are all substitute parts RoHS compliant?

A: Yes. The 7X-40.000MBA-T and 7X-40.000MBB-T are RoHS Compliant. The SXO75C3C171-40.000M is ROHS3 Compliant. All parts meet regulatory requirements for hazardous substance restrictions. The 7W-40.000MBA-T, 7X-40.000MBA-T, and 7X-40.000MBB-T maintain REACH Unaffected status.

Q6: Which substitute part should be selected for new product designs?

A: For new product designs, the 7X-40.000MBA-T is recommended as the primary choice due to Active product status, identical electrical specifications to the main part, and availability from the original manufacturer (TXC CORPORATION). If PCB space is not constrained and original physical dimensions are required, the SXO75C3C171-40.000M provides an alternative with equivalent electrical performance and maintains the 7.00mm x 5.00mm footprint.