CD4541BNSRG4 Equivalent & Substitute Parts

Part Overview

The CD4541BNSRG4 is a programmable timer IC operating at 100kHz with a 65536 count capacity, manufactured by Texas Instruments in a 14-SOIC surface mount package. This component is classified as discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design requirements and production needs. The part operates across a wide supply voltage range of 3V to 20V and maintains performance across industrial temperature ranges from -55°C to 125°C.

Substiute Parts

CD4541BNSRG4

Texas InstrumentsIn Stock: 809CD4541BNSRG4 Datasheet

Current PartRFQ

CD4541BNSR

Texas InstrumentsIn Stock: 4723CD4541BNSR Datasheet

MFR RecommendedRFQ

HEF4541BT,518

Nexperia USA Inc.In Stock: 3349HEF4541BT,518 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD4541BNSRG4 is determined by the following critical parameters:

Primary Substitution Criteria:

• Package compatibility: 14-SOIC surface mount configuration
• Functional classification: Programmable timer IC
• Electrical compatibility: Supply voltage range overlap and operating temperature range coverage
• Count capacity: 65536 count minimum requirement
• RoHS and compliance certifications: ROHS3 compliance and REACH unaffected status

Substitute Parts Identified:

1. CD4541BNSR (Texas Instruments) — Direct manufacturer alternative with identical electrical specifications and packaging. Active product status with expanded inventory availability.

2. HEF4541BT,518 (Nexperia USA Inc.) — Cross-manufacturer equivalent with functional timer capability. Operates at higher frequency (36MHz) with modified voltage supply range (4.5V ~ 15.5V) and narrower temperature range (-40°C ~ 85°C). Classified as obsolete.

Parameter Comparison

Engineering Selection Recommendations

CD4541BNSR is the primary recommended substitute. This part maintains identical electrical specifications, frequency, count capacity, and temperature range as the CD4541BNSRG4. Both components are manufactured by Texas Instruments with matching 14-SOIC packaging and RoHS3 compliance. The CD4541BNSR carries active product status with significantly higher inventory availability (4626 units), ensuring supply chain continuity.

HEF4541BT,518 serves as a secondary alternative for applications where the higher operating frequency (36MHz) and modified voltage supply range (4.5V ~ 15.5V) are acceptable. This part is classified as obsolete and operates within a narrower temperature range (-40°C ~ 85°C), making it suitable only for designs that do not require the extended low-temperature performance of the original specification. The physical package dimensions differ (0.154" versus 0.209" width), requiring PCB layout verification.

Both substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements equivalent to the main part.

Frequently Asked Questions (FAQ)

Q: Can CD4541BNSR be used as a direct replacement for CD4541BNSRG4?

A: Yes. The CD4541BNSR is a direct functional and electrical equivalent. Both parts share identical frequency (100kHz), count capacity (65536), voltage supply range (3V ~ 20V), operating temperature range (-55°C ~ 125°C), and 14-SOIC packaging. The primary difference is product status: CD4541BNSR is active with higher inventory availability.

Q: What are the limitations of using HEF4541BT,518 as a substitute?

A: The HEF4541BT,518 operates at 36MHz (versus 100kHz), has a reduced voltage supply range (4.5V ~ 15.5V versus 3V ~ 20V), and narrower operating temperature range (-40°C ~ 85°C versus -55°C ~ 125°C). The physical package width differs (0.154" versus 0.209"), requiring PCB layout verification. This part is classified as obsolete.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. Both CD4541BNSR and HEF4541BT,518 are ROHS3 compliant with moisture sensitivity level 1 (unlimited), matching the compliance profile of the CD4541BNSRG4.

Q: What is the primary criterion for substitution compatibility?

A: The 14-SOIC surface mount package configuration is the primary mechanical requirement. Electrical compatibility is determined by voltage supply range overlap, operating temperature range coverage, and functional timer capability. Frequency and count capacity must meet or exceed application requirements.

Q: Can the HEF4541BT,518 be used in applications requiring -55°C operation?

A: No. The HEF4541BT,518 operates only to -40°C minimum, making it unsuitable for applications requiring the extended low-temperature performance of the CD4541BNSRG4 (-55°C minimum).