LM337BD2TR4 Equivalent & Substitute Parts

Part Overview

The LM337BD2TR4 is a linear voltage regulator IC designed for negative adjustable output applications. It delivers 1.5A output current in a D2PAK-3 surface mount package and is suitable for power management circuits requiring negative voltage regulation with adjustable output levels between -1.2V and -37V.

The LM337BD2TR4 is classified as obsolete. Finding equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and access components with active manufacturing status and current compliance certifications.

Substiute Parts

LM337BD2TR4

onsemiIn Stock: 913LM337BD2TR4 Datasheet

Current PartRFQ

LM337BD2TR4G

onsemiIn Stock: 15320LM337BD2TR4G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LM337BD2TR4 are identified based on strict electrical and mechanical parameter matching:

Critical Parameters for Substitution:

• Output Configuration: Negative
• Output Type: Adjustable
• Voltage Range: Input -40V (Max), Output -1.2V to -37V
• Current - Output: 1.5A
• Package / Case: TO-263-3, D2PAK (2 Leads + Tab)
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 125°C
• Protection Features: Over Current, Over Temperature

The LM337BD2TR4G qualifies as a direct substitute because it maintains identical electrical specifications, package configuration, and functional characteristics while offering active product status and improved compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The LM337BD2TR4G is the direct substitute for the obsolete LM337BD2TR4. Both parts share identical electrical performance and mechanical compatibility. The LM337BD2TR4G offers the advantage of active product status, ensuring ongoing availability and manufacturing support. Additionally, the LM337BD2TR4G meets ROHS3 compliance requirements, whereas the original part is RoHS non-compliant. For new designs or component replenishment, the LM337BD2TR4G is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can the LM337BD2TR4G be used as a direct replacement for the LM337BD2TR4?

A: Yes. The LM337BD2TR4G is electrically and mechanically identical to the LM337BD2TR4. Both parts deliver -1.2V to -37V adjustable negative output at 1.5A in the same D2PAK-3 package. No circuit modifications are required.

Q: What is the difference between the LM337BD2TR4 and LM337BD2TR4G?

A: The primary differences are product status and compliance. The LM337BD2TR4 is obsolete and RoHS non-compliant. The LM337BD2TR4G is active, manufactured by onsemi, and ROHS3 compliant. Electrical specifications and package configuration are identical.

Q: Are there any package or pinout differences?

A: No. Both parts use the TO-263-3 D2PAK package with identical pinout and lead configuration. PCB layouts and footprints are fully compatible.

Q: What inventory considerations apply?

A: The LM337BD2TR4 has limited inventory (839 Pcs). The LM337BD2TR4G has significantly higher availability (15,300 Pcs) and is actively manufactured, providing better long-term supply assurance.

Q: Are there compliance or regulatory differences?

A: Yes. The LM337BD2TR4G meets ROHS3 compliance standards, while the LM337BD2TR4 does not. Both parts maintain REACH Unaffected status. For applications subject to RoHS regulations, the LM337BD2TR4G is required.