7W-40.000MBB-T CMOS Oscillator Equivalent & Substitute Parts

Part Overview

The 7W-40.000MBB-T is a 40 MHz crystal oscillator manufactured by TXC CORPORATION, designed for applications requiring a standard XO (Standard) CMOS output with Enable/Disable functionality. This oscillator operates at 3.3V supply voltage and is housed in a 4-SMD, No Lead package measuring 7.00mm x 5.00mm.

The 7W-40.000MBB-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 frequency and electrical specification.

Substiute Parts

7W-40.000MBB-T

TXC CORPORATIONIn Stock: 10387W-40.000MBB-T Datasheet

Current PartRFQ

7X-40.000MBB-T

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

DirectRFQ

7X-40.000MBA-T

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

UpgradeRFQ

SXO75C3A171-40.000M

Suntsu Electronics, Inc.In Stock: 1354SXO75C3A171-40.000M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7W-40.000MBB-T is determined by 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

Allowable Variation Parameters:

• Frequency Stability: ±50ppm (baseline); ±25ppm (improved tolerance)
• Maximum Supply Current: Up to 25mA (higher current capacity acceptable)
• Physical Dimensions: Variations permitted within SMD package constraints
• Packaging Format: Cut Tape (CT), Tape & Reel (TR), or Bulk acceptable
• Product Status: Active or Obsolete
• Compliance Standards: RoHS Compliant or ROHS3 Compliant

All substitute parts listed maintain electrical compatibility with the original 7W-40.000MBB-T specification while offering improved availability or enhanced performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

7X-40.000MBB-T (TXC CORPORATION)

The 7X-40.000MBB-T is a direct equivalent substitute with Active product status. This part maintains identical electrical specifications to the 7W-40.000MBB-T, including frequency stability of ±50ppm and maximum supply current of 20mA. The primary distinction is the reduced physical footprint (3.20mm x 2.50mm versus 7.00mm x 5.00mm), which provides space optimization benefits in compact PCB designs. Packaging is available in Tape & Reel (TR) format with 1063 units in stock. RoHS Compliance and REACH Unaffected status are maintained.

7X-40.000MBA-T (TXC CORPORATION)

The 7X-40.000MBA-T functions as an upgrade substitute with enhanced frequency stability of ±25ppm, compared to the ±50ppm baseline of the 7W-40.000MBB-T. This improved tolerance is suitable for applications requiring tighter frequency control. All other electrical parameters remain compatible. Product status is Active with 702 units in stock. Physical dimensions match the 7X-40.000MBB-T (3.20mm x 2.50mm). RoHS Compliance and REACH Unaffected status are maintained.

SXO75C3A171-40.000M (Suntsu Electronics, Inc.)

The SXO75C3A171-40.000M is a cross-manufacturer substitute from Suntsu Electronics, Inc., maintaining all critical electrical specifications. Maximum supply current is rated at 25mA, providing additional current capacity margin. Physical dimensions match the original 7W-40.000MBB-T (7.00mm x 5.00mm). Product status is Active with 1327 units in stock. ROHS3 Compliance is confirmed. Packaging is available in Bulk format.

Frequently Asked Questions (FAQ)

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

A: Yes. The 7X-40.000MBB-T is electrically equivalent with identical frequency, output type, supply voltage, function, and frequency stability. The primary difference is the reduced package size (3.20mm x 2.50mm versus 7.00mm x 5.00mm). PCB layout modifications may be required to accommodate the smaller footprint.

Q: What is the advantage of selecting the 7X-40.000MBA-T over the 7X-40.000MBB-T?

A: The 7X-40.000MBA-T provides improved frequency stability of ±25ppm compared to ±50ppm in the 7X-40.000MBB-T. This enhanced tolerance is beneficial for applications with stringent frequency accuracy requirements. All other electrical and physical specifications remain identical.

Q: Is the SXO75C3A171-40.000M compatible with the original 7W-40.000MBB-T design?

A: Yes. The SXO75C3A171-40.000M maintains all critical electrical specifications and physical dimensions matching the 7W-40.000MBB-T. The maximum supply current rating of 25mA provides additional margin compared to the 20mA specification of the original part. No PCB modifications are required.

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

A: The 7X-40.000MBB-T is available in Tape & Reel (TR) format. The 7X-40.000MBA-T is available in Tape & Reel (TR) format. The SXO75C3A171-40.000M is available in Bulk format. The original 7W-40.000MBB-T was available in Cut Tape (CT) & Digi-Reel® format.

Q: Are all substitute parts RoHS compliant?

A: Yes. The 7X-40.000MBB-T and 7X-40.000MBA-T are RoHS Compliant. The SXO75C3A171-40.000M is ROHS3 Compliant. Both compliance levels are acceptable for RoHS-regulated applications.

Q: What is the current availability status of these parts?

A: The 7W-40.000MBB-T (Obsolete) has 999 units in stock. The 7X-40.000MBB-T (Active) has 1063 units in stock. The 7X-40.000MBA-T (Active) has 702 units in stock. The SXO75C3A171-40.000M (Active) has 1327 units in stock.