74HC137DB,112 Equivalent & Substitute Parts

Part Overview

The 74HC137DB,112 is a Decoder/Demultiplexer IC with 1 x 3:8 circuit configuration, manufactured by Nexperia USA Inc. in a 16-SSOP surface mount package. This component is classified as Obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The part operates across a 2V to 6V supply range with symmetric output current characteristics, suitable for logic-level signal routing and selection applications.

Substiute Parts

74HC137DB,112

Nexperia USA Inc.In Stock: 117874HC137DB,112 Datasheet

Current PartRFQ

74HC137PWJ

Nexperia USA Inc.In Stock: 101174HC137PWJ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74HC137DB,112 is determined by the following critical parameters:

• Functional Circuit: 1 x 3:8 Decoder/Demultiplexer configuration
• Electrical Specifications: Voltage supply range 2V ~ 6V, output current 5.2mA (high and low)
• Operating Temperature Range: -40°C ~ 125°C
• Compliance Standards: ROHS3 Compliant, REACH Unaffected
• Moisture Sensitivity: MSL 1 (Unlimited)

The primary substitute identified is the 74HC137PWJ, which maintains identical functional and electrical characteristics while differing in package format and product status. This substitution is valid because both parts share the same base product number (74HC137), identical circuit configuration, electrical performance parameters, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The 74HC137PWJ is the recommended substitute for the obsolete 74HC137DB,112. Both parts maintain identical electrical performance, functional capability, and compliance certifications. The primary distinction is packaging format: the 74HC137PWJ uses a narrower 16-TSSOP package (4.40mm width) compared to the 16-SSOP package (5.30mm width) of the original part.

The 74HC137PWJ carries Active product status, ensuring continued availability and manufacturing support. Both parts satisfy ROHS3 compliance and REACH requirements, making them suitable for regulated applications. The electrical parameters—including supply voltage range, output current specifications, and operating temperature range—are identical, confirming functional interchangeability at the circuit level.

Package dimension differences must be evaluated against PCB layout constraints. The narrower TSSOP footprint may require PCB redesign if the original SSOP layout cannot accommodate the alternative package geometry.

Frequently Asked Questions (FAQ)

Q: Can the 74HC137PWJ directly replace the 74HC137DB,112 in existing designs?

A: Electrical and functional replacement is direct. However, the package footprint differs (16-TSSOP vs. 16-SSOP), requiring PCB layout verification. Pin configuration and electrical characteristics are identical.

Q: Why is the 74HC137DB,112 listed as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The 74HC137PWJ, with Active status, represents the current production alternative from the same manufacturer.

Q: Are there compliance differences between the two parts?

A: No. Both parts are ROHS3 Compliant, REACH Unaffected, and carry identical moisture sensitivity ratings (MSL 1 - Unlimited).

Q: What is the significance of the package width difference?

A: The 74HC137PWJ package is narrower (4.40mm vs. 5.30mm). This affects PCB footprint and routing space. Verify that your PCB layout can accommodate the TSSOP package dimensions before implementation.

Q: Do the electrical specifications differ between these parts?

A: No. Supply voltage (2V ~ 6V), output current (5.2mA high and low), and operating temperature range (-40°C ~ 125°C) are identical.

Q: What does the base product number 74HC137 indicate?

A: The base product number identifies the core functional design. Both the DB,112 and PWJ variants implement the same 1 x 3:8 Decoder/Demultiplexer circuit, with differences limited to packaging and distribution format.