BD49K25G-TL Equivalent & Substitute Parts

Part Overview

The BD49K25G-TL is a voltage supervisor IC from Rohm Semiconductor designed for single-channel power management applications. This device functions as a voltage detector with push-pull totem pole output configuration and active-low reset functionality. The part is classified as not for new designs, making identification of functionally equivalent alternatives essential for ongoing production support and design flexibility.

Substiute Parts

BD49K25G-TL

Rohm SemiconductorIn Stock: 3107BD49K25G-TL Datasheet

Current PartRFQ

BD49L25G-TL

Rohm SemiconductorIn Stock: 4219BD49L25G-TL Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BD49K25G-TL is determined by the following critical parameters:

• Single-channel voltage detection capability
• 2.5V threshold voltage specification
• Push-pull totem pole output stage
• Active-low reset configuration
• 3-SSOP package footprint compatibility
• Operating temperature range of -40°C to 105°C
• Surface mount technology
• ROHS3 compliance and REACH unaffected status

The BD49L25G-TL qualifies as a parametric equivalent based on matching all specified electrical and mechanical characteristics. Both devices share identical functional parameters, package specifications, and regulatory compliance certifications, enabling direct substitution in applications requiring single-channel voltage supervision at 2.5V threshold.

Parameter Comparison

Engineering Selection Recommendations

Both the BD49K25G-TL and BD49L25G-TL are classified as not for new designs. For applications currently using the BD49K25G-TL, the BD49L25G-TL provides full parametric equivalence with identical electrical performance, package compatibility, and regulatory compliance. Selection between these parts should be based on inventory availability and supply chain considerations, as both devices meet all specified functional and compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can BD49L25G-TL replace BD49K25G-TL in existing designs?

A: Yes. The BD49L25G-TL is a parametric equivalent with identical voltage threshold (2.5V), output configuration (push-pull totem pole), reset polarity (active low), package type (3-SSOP), and operating temperature range (-40°C to 105°C). Direct substitution is supported.

Q: Are the package footprints identical?

A: Yes. Both parts use the TO-236-3/SC-59/SOT-23-3 package with 3-SSOP supplier device package specification, ensuring PCB layout compatibility without modification.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both BD49K25G-TL and BD49L25G-TL are ROHS3 compliant, REACH unaffected, and share identical moisture sensitivity level (MSL 3, 168 hours).

Q: What is the primary difference between these parts?

A: The parts belong to different series within the BD49 family (K-series versus L-series). All specified electrical and mechanical parameters are identical, making the series designation the only distinguishing factor.

Q: Are there any temperature or voltage rating differences?

A: No. Both devices operate across the identical temperature range (-40°C to 105°C) and monitor the same voltage threshold (2.5V).