TLVH432IPK Equivalent & Substitute Parts

Part Overview

The TLVH432IPK is a shunt voltage reference IC manufactured by Texas Instruments, designed for precision voltage regulation applications. This adjustable reference provides a fixed output of 1.24V with a maximum output capability of 18V and 70mA current capacity, housed in a SOT-89-3 surface mount package. The device is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and production continuity. The TLVH432IPK maintains ROHS3 compliance and is suitable for applications requiring stable voltage reference generation across the -40°C to 85°C operating temperature range.

Substiute Parts

TLVH432IPK

Texas InstrumentsIn Stock: 1028TLVH432IPK Datasheet

Current PartRFQ

TLVH432QPK

Texas InstrumentsIn Stock: 24141TLVH432QPK Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLVH432IPK are identified based on strict electrical and mechanical parameter matching. The primary substitution criterion is the maintenance of identical electrical specifications: shunt reference type, adjustable output configuration, 1.24V minimum output voltage, 18V maximum output voltage, 70mA output current capacity, and ±1.5% tolerance. The mechanical compatibility requirement specifies identical package designation (TO-243AA / SOT-89-3) to ensure direct PCB footprint compatibility without layout modifications.

The TLVH432QPK qualifies as a direct substitute based on complete alignment with these critical parameters. The distinction between the main part and substitute lies in product status and packaging format: the TLVH432IPK is classified as obsolete with unspecified packaging, while the TLVH432QPK is active production status with Tape & Reel (TR) packaging. Both parts share the identical base product number (TLVH432) and maintain full electrical and mechanical equivalence.

Parameter Comparison

Engineering Selection Recommendations

The TLVH432QPK is the appropriate substitute for the obsolete TLVH432IPK. Selection of the TLVH432QPK is justified by three primary factors: complete electrical parameter equivalence across all specified characteristics, identical mechanical packaging (TO-243AA / SOT-89-3) ensuring direct PCB compatibility, and active production status providing supply chain continuity and long-term availability.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for current manufacturing standards. The TLVH432QPK's Tape & Reel packaging format is standard for production environments and does not introduce compatibility constraints. Current inventory levels for the TLVH432QPK (24,059 pieces) support immediate procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can the TLVH432QPK be used as a direct replacement for the TLVH432IPK without circuit modifications?

A: Yes. The TLVH432QPK provides complete electrical and mechanical equivalence. Identical output voltage range (1.24V to 18V), current capacity (70mA), tolerance (±1.5%), and package designation (SOT-89-3) ensure direct PCB footprint compatibility without design changes.

Q: What is the primary reason for substituting the TLVH432IPK?

A: The TLVH432IPK is classified as obsolete product status. The TLVH432QPK is the active production equivalent, providing supply chain continuity and long-term availability for new designs and production support.

Q: Are there packaging differences between these parts?

A: The TLVH432IPK packaging format is unspecified in the provided data. The TLVH432QPK is supplied in Tape & Reel (TR) format, which is standard for automated assembly processes. Both parts use identical SOT-89-3 package designation and TO-243AA case style.

Q: Do both parts meet current regulatory compliance standards?

A: Yes. Both the TLVH432IPK and TLVH432QPK maintain ROHS3 compliance and REACH unaffected status, satisfying current environmental and regulatory requirements.

Q: What are the critical electrical parameters that define substitution compatibility?

A: Substitution compatibility is determined by: reference type (shunt), output type (adjustable), minimum output voltage (1.24V), maximum output voltage (18V), output current (70mA), tolerance (±1.5%), cathode current (100µA), and operating temperature range (-40°C to 85°C).