ESP-32S Equivalent & Substitute Parts Reference

Part Overview

The ESP-32S is a Surface Mount RF transceiver module manufactured by Olimex LTD, designed for wireless communication applications. The module features a 38-SMD package configuration with integrated RF transmission and reception capabilities.

Product Status: Obsolete. Due to the discontinued status of the ESP-32S, identification of functionally compatible substitute components is necessary for ongoing system support, design updates, and procurement continuity.

Substiute Parts

ESP-32S

Olimex LTDIn Stock: 1046ESP-32S Datasheet

Current PartRFQ

3320

Adafruit Industries LLCIn Stock: 8813320 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute identification for the ESP-32S is based on the following critical parameters that define functional equivalence:

Primary Substitution Criteria:

• Mounting Type: Surface Mount configuration required for PCB assembly compatibility
• Package Classification: Module-level RF transceiver form factor
• Regulatory Compliance: HTSUS classification 8517.62.0090 (RF transceiver modules)
• Moisture Sensitivity: MSL 1 rating for unlimited shelf life storage
• Functional Category: RF TXRX Module designation

The substitute part identified (MFR Part Number 3320) meets these core substitution parameters while providing enhanced specifications in frequency range, protocol support, and data rate capabilities.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility: The 3320 module qualifies as a functional substitute for the obsolete ESP-32S based on matching core parameters: Surface Mount configuration, Module-level package classification, MSL 1 rating, and identical HTSUS commodity code (8517.62.0090).

Compliance Considerations: The substitute part (3320) maintains ROHS3 compliance status, whereas the main part specification does not include RoHS documentation. Both components share MSL 1 classification, indicating equivalent moisture handling requirements during storage and assembly.

Regulatory Classification: Both parts fall under HTSUS 8517.62.0090 (RF transceiver modules), confirming tariff classification alignment. ECCN designations differ (5A002A1 vs. 5A992C), reflecting updated export control classifications for the substitute component.

Active Product Status: The 3320 maintains Active product status with documented inventory availability (775 Pcs), providing supply chain continuity for the discontinued ESP-32S.

Frequently Asked Questions (FAQ)

Q: What makes the 3320 a valid substitute for the ESP-32S?

A: Both components share critical substitution parameters: Surface Mount mounting type, Module-level package classification, MSL 1 moisture sensitivity rating, and identical HTSUS commodity classification (8517.62.0090). The 3320 is an active product with documented availability, addressing the obsolete status of the ESP-32S.

Q: Are there physical package compatibility concerns between ESP-32S and 3320?

A: The ESP-32S uses a 38-SMD Module package, while the 3320 is classified as a Module package. Physical footprint compatibility must be verified during design integration, as SMD-specific pin configurations may differ from the substitute component layout.

Q: What compliance differences exist between these components?

A: The 3320 includes ROHS3 compliance documentation, whereas the ESP-32S specification does not include RoHS status. Both components maintain MSL 1 rating. ECCN classifications differ (5A002A1 vs. 5A992C), reflecting updated export control designations for the substitute.

Q: Is the 3320 suitable for applications requiring the original ESP-32S specifications?

A: Substitution suitability depends on application-specific requirements. The 3320 provides documented frequency range (2.4GHz ~ 2.5GHz), protocol support (802.11a/b/g/n, Bluetooth v4.2), and electrical parameters (2.2V ~ 3.6V supply, 80mA receive/transmit current). The ESP-32S specification does not include these parameters, requiring application-level compatibility assessment.

Q: What inventory status should be considered for procurement decisions?

A: The ESP-32S shows 946 Pcs in stock with Obsolete status. The 3320 substitute shows 775 Pcs in stock with Active product status, providing ongoing supply availability and long-term procurement reliability.