TSOP39438 Equivalent & Substitute Parts

Part Overview

The TSOP39438 is an active-high remote receiver sensor manufactured by Vishay Semiconductor Opto Division, designed for infrared remote control applications. This through-hole optical sensor operates at a center frequency of 38.0kHz with a sensing distance of 45 meters and is compliant with ROHS3 and REACH standards. The part is currently in active production status with 3393 units available in inventory. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

TSOP39438

Vishay Semiconductor Opto DivisionIn Stock: 3477TSOP39438 Datasheet

Current PartRFQ

TSOP38438

Vishay Semiconductor Opto DivisionIn Stock: 1561TSOP38438 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The TSOP38438 qualifies as a substitute for the TSOP39438 based on the following critical parameters that determine functional equivalence:

• B.P.F. Center Frequency: Both parts operate at 38.0kHz, ensuring compatibility with standard infrared remote control protocols
• Sensing Distance: Both parts maintain 45m sensing range, preserving application coverage requirements
• Voltage Supply Range: Both parts accept 2.5 V ~ 5.5 V input, ensuring compatibility with existing power supply designs
• Current Supply: Both parts draw 450 µA, maintaining identical power consumption characteristics
• Mounting Type: Both parts use through-hole mounting, allowing direct PCB placement without redesign
• Compliance Standards: Both parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements
• Moisture Sensitivity Level: Both parts carry MSL rating of 1 (Unlimited), indicating identical handling and storage requirements

The TSOP38438 differs from the TSOP39438 in orientation (Side View versus Top View) and includes specified operating temperature range (-25°C ~ 85°C), providing additional environmental specification clarity.

Parameter Comparison

Engineering Selection Recommendations

Both the TSOP39438 and TSOP38438 are active production parts from Vishay Semiconductor Opto Division with identical electrical specifications for infrared remote receiver applications. Selection between these parts should be based on:

TSOP39438 Selection: Choose when top-view orientation aligns with PCB layout requirements and higher inventory availability (3393 units) is advantageous for production scheduling.

TSOP38438 Selection: Choose when side-view orientation is required for specific mechanical constraints. This part provides explicit operating temperature specification (-25°C ~ 85°C), offering additional environmental documentation for applications requiring temperature range verification.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for consumer electronics and industrial applications. Identical electrical parameters (38.0kHz center frequency, 45m sensing distance, 2.5-5.5V supply voltage, 450µA current draw) ensure functional interchangeability in circuit designs.

Frequently Asked Questions (FAQ)

Q: Can TSOP38438 directly replace TSOP39438 in existing designs? A: Yes. Both parts share identical electrical specifications (38.0kHz frequency, 45m range, 2.5-5.5V supply, 450µA current) and through-hole mounting. The primary difference is sensor orientation (top view versus side view), which may require PCB layout verification.

Q: What is the significance of the orientation difference between these parts? A: Orientation refers to the physical mounting angle of the sensor element. Top view (TSOP39438) and side view (TSOP38438) affect how the infrared receiver is positioned relative to the PCB surface. PCB layout and mechanical enclosure design determine which orientation is appropriate.

Q: Are both parts suitable for consumer remote control applications? A: Yes. Both parts operate at the standard 38.0kHz infrared frequency used in consumer remote control protocols and maintain 45-meter sensing distance for typical room-scale applications.

Q: What does MSL rating 1 (Unlimited) mean for component handling? A: MSL 1 indicates the lowest moisture sensitivity level. These parts have unlimited shelf life when stored in normal conditions and do not require special moisture-controlled packaging or baking procedures before soldering.

Q: How do the inventory levels affect part selection? A: TSOP39438 has 3393 units in stock versus 1550 units for TSOP38438. For high-volume production, TSOP39438 availability may provide supply chain advantages. For low-volume or prototype applications, both inventory levels are adequate.

Q: Are there compliance differences between these parts? A: No. Both parts carry identical ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for electronics manufacturing in regulated markets.