SN74F151BDRG4 Equivalent & Substitute Parts

Part Overview

The SN74F151BDRG4 is a 1 x 8:1 multiplexer logic integrated circuit manufactured by Texas Instruments in a 16-SOIC surface mount package. This component is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement. The part operates on single supply voltage (4.5V to 5.5V) and is suitable for applications requiring high-speed data selection across eight input lines.

Substiute Parts

SN74F151BDRG4

Texas InstrumentsIn Stock: 827SN74F151BDRG4 Datasheet

Current PartRFQ

SN74F151BDR

Texas InstrumentsIn Stock: 5441SN74F151BDR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74F151BDRG4 is based on strict equivalence across the following critical parameters:

• Circuit Configuration: 1 x 8:1 multiplexer topology
• Package Type: 16-SOIC surface mount package with identical 0.154" (3.90mm) width
• Electrical Specifications: Single supply voltage range (4.5V ~ 5.5V), output current ratings (1mA high, 24mA low)
• Operating Temperature Range: 0°C ~ 70°C
• Compliance Standards: ROHS3 compliance and MSL rating of 1

The SN74F151BDR meets all these criteria and is classified as a parametric equivalent. The primary distinction is packaging format: the main part is supplied in tube packaging, while the substitute is available in Tape & Reel (TR) format. Both parts share the identical 16-SOIC package footprint and electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The SN74F151BDR is a direct parametric equivalent to the SN74F151BDRG4 and is suitable for replacement in all applications where the original part was specified. Both parts are manufactured by Texas Instruments, share identical electrical performance characteristics, and are housed in the same 16-SOIC package footprint.

The primary advantage of selecting SN74F151BDR is its active product status and higher inventory availability (5402 pieces in stock versus 739 pieces for the discontinued variant). Both parts maintain ROHS3 compliance and identical MSL ratings, ensuring compatibility with modern manufacturing and environmental standards.

The difference in packaging format (Tape & Reel versus tube) affects procurement and handling procedures but does not impact electrical performance or PCB assembly compatibility. Design teams should verify that their assembly processes support Tape & Reel format if transitioning from the original part.

Frequently Asked Questions (FAQ)

Q: Can SN74F151BDR be used as a direct replacement for SN74F151BDRG4?

A: Yes. Both parts are identical in electrical specifications, circuit configuration (1 x 8:1 multiplexer), package type (16-SOIC), voltage supply range (4.5V ~ 5.5V), and operating temperature range (0°C ~ 70°C). The only difference is packaging format and product availability status.

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

A: Tube packaging supplies individual components in a plastic tube, while Tape & Reel (TR) format supplies components on a continuous reel with carrier tape. Both formats contain the same component in the same 16-SOIC package. The choice between formats depends on assembly line equipment and procurement volume requirements.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, carry an MSL rating of 1 (Unlimited), and are REACH unaffected. Compliance certifications are identical.

Q: Why is the original part discontinued?

A: The SN74F151BDRG4 is discontinued at DiGi Electronics. The SN74F151BDR remains in active production and is the recommended source for ongoing procurement.

Q: Will the PCB footprint remain the same if I switch to the substitute part?

A: Yes. Both parts use the identical 16-SOIC package with 0.154" (3.90mm) width. PCB footprints, land patterns, and assembly procedures remain unchanged.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by matching circuit configuration (1 x 8:1), package type (16-SOIC), voltage supply range (4.5V ~ 5.5V), output current specifications (1mA, 24mA), and operating temperature range (0°C ~ 70°C). All these parameters are identical between the main part and substitute.