LM337KTPR Equivalent & Substitute Parts

Part Overview

The LM337KTPR is a linear voltage regulator IC from Texas Instruments designed for negative adjustable output applications. It delivers 1.5A output current in a TO-252-3 surface mount package. The device is classified as Obsolete, making identification of equivalent substitute parts essential for ongoing design support and procurement continuity. The LM337KVURG3 serves as a parametric equivalent with identical electrical specifications and package configuration.

Substiute Parts

LM337KTPR

Texas InstrumentsIn Stock: 1010LM337KTPR Datasheet

Current PartRFQ

LM337KVURG3

Texas InstrumentsIn Stock: 30062LM337KVURG3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM337KTPR with the LM337KVURG3 is based on strict electrical and mechanical parameter equivalence. Both devices share identical specifications across all critical selection criteria:

• Negative adjustable output configuration with single regulator topology
• Input voltage rating of -40V maximum
• Output voltage range from -1.2V to -37V
• 1.5A output current capability
• Identical PSRR performance at 77dB (120Hz)
• Matching protection features: Over Temperature and Short Circuit
• Common operating temperature range: 0°C ~ 125°C
• Identical package: TO-252-3 (DPAK with 2 Leads + Tab, SC-63)
• Both ROHS3 compliant and REACH unaffected

The substitution is valid for applications requiring these exact electrical and thermal characteristics within the specified operating envelope.

Parameter Comparison

Engineering Selection Recommendations

The LM337KVURG3 is the direct parametric equivalent for the obsolete LM337KTPR. Both devices meet ROHS3 compliance and REACH requirements, ensuring regulatory alignment for new designs and legacy system support.

The primary distinction is product status: LM337KTPR is Obsolete while LM337KVURG3 is Last Time Buy. For applications requiring long-term component availability, the LM337KVURG3 should be prioritized. The MSL rating difference (1 versus 3) reflects standard moisture sensitivity classifications and does not affect electrical performance or substitution validity.

Both parts are suitable for negative voltage regulation applications requiring adjustable output from -1.2V to -37V at 1.5A within the 0°C to 125°C operating range.

Frequently Asked Questions (FAQ)

Q: Can LM337KVURG3 directly replace LM337KTPR in existing designs?

A: Yes. Both devices are electrically and mechanically identical across all specified parameters. Pin configuration, package footprint (TO-252-3), and electrical performance are equivalent.

Q: What is the significance of the product status difference?

A: LM337KTPR is Obsolete, indicating end-of-life status. LM337KVURG3 is Last Time Buy, providing a defined procurement window before discontinuation. For new designs or long-term support, LM337KVURG3 should be selected.

Q: Does the MSL rating difference affect substitution?

A: No. MSL (Moisture Sensitivity Level) classification does not impact electrical performance or functional substitution. It specifies handling and storage requirements. MSL 1 (Unlimited) allows indefinite shelf life, while MSL 3 (168 Hours) requires controlled storage conditions. Both ratings are standard for surface mount components.

Q: Are both parts suitable for the same voltage and current specifications?

A: Yes. Both deliver 1.5A output current with adjustable negative output from -1.2V to -37V, supporting input voltages to -40V maximum.

Q: What packaging options are available?

A: Both parts use TO-252-3 package (DPAK with 2 Leads + Tab, SC-63). LM337KVURG3 is supplied in Cut Tape (CT) and Digi-Reel format, while LM337KTPR packaging format is not specified in available data.