2SD2129,ALPSQ(M Equivalent & Substitute Parts

Part Overview

The 2SD2129,ALPSQ(M is an NPN bipolar junction transistor manufactured by Toshiba Semiconductor and Storage, designed for through-hole applications in the TO-220-3 package. This component is rated for 100 V collector-emitter breakdown voltage with a maximum collector current of 3 A and 2 W power dissipation capability. The part is currently classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support, maintenance, and production continuity.

Substiute Parts

2SD2129,ALPSQ(M

Toshiba Semiconductor and StorageIn Stock: 9332SD2129,ALPSQ(M Datasheet

Current PartRFQ

2SD1223,L1XGQ(O

Toshiba Semiconductor and StorageIn Stock: 11872SD1223,L1XGQ(O Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SD2129,ALPSQ(M is evaluated based on the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Transistor polarity type (NPN)
• Voltage rating (Collector-Emitter Breakdown ≥ 100 V)
• Current capacity (Collector current ≥ 3 A)
• Power dissipation capability (≥ 2 W)
• DC current gain characteristics (hFE performance)
• Saturation voltage characteristics
• Package compatibility (TO-220-3 through-hole mounting)

The 2SD1223,L1XGQ(O is identified as a substitute part within the Toshiba Semiconductor and Storage product family. Both components are NPN bipolar junction transistors manufactured by the same supplier, share identical moisture sensitivity classification, and are subject to the same export control regulations. The 2SD1223,L1XGQ(O maintains active product status, ensuring ongoing availability and supply chain continuity compared to the obsolete 2SD2129,ALPSQ(M.

Parameter Comparison

Engineering Selection Recommendations

The 2SD1223,L1XGQ(O is classified as an active product with RoHS compliance certification, providing superior supply chain assurance compared to the obsolete 2SD2129,ALPSQ(M. Both components share identical export control classification (EAR99) and harmonized tariff codes (8541.29.0095), indicating equivalent regulatory treatment for procurement and logistics purposes.

Selection of the 2SD1223,L1XGQ(O for applications previously utilizing the 2SD2129,ALPSQ(M is supported by:

• Identical NPN transistor polarity and Toshiba Semiconductor and Storage manufacturing origin
• Matching moisture sensitivity classification (MSL 1 - Unlimited), eliminating special handling requirements
• Active product status ensuring long-term availability and consistent manufacturing processes
• RoHS compliance certification meeting current environmental and regulatory standards
• Equivalent export control and tariff classification for supply chain continuity

Frequently Asked Questions (FAQ)

Q: Can the 2SD1223,L1XGQ(O directly replace the 2SD2129,ALPSQ(M in existing designs?

A: Both components are NPN bipolar junction transistors from Toshiba Semiconductor and Storage with identical moisture sensitivity classification and export control status. Substitution is supported by matching transistor polarity and regulatory classification. Detailed electrical parameter verification against specific application requirements is necessary to confirm functional equivalence.

Q: What is the significance of the obsolete product status for the 2SD2129,ALPSQ(M?

A: Obsolete classification indicates the manufacturer has discontinued production and support for this component. The 2SD1223,L1XGQ(O maintains active product status, ensuring ongoing manufacturing, quality assurance, and supply availability.

Q: Are there packaging differences between these components?

A: The 2SD2129,ALPSQ(M is specified in TO-220-3 through-hole package format. Package information for the 2SD1223,L1XGQ(O is not provided in the available technical data. Package compatibility must be verified against application requirements and PCB layout specifications.

Q: Does the RoHS compliance status of the 2SD1223,L1XGQ(O affect substitution decisions?

A: RoHS compliance certification for the 2SD1223,L1XGQ(O indicates conformance to current environmental and regulatory standards. This status supports selection for new designs and applications subject to RoHS requirements. The 2SD2129,ALPSQ(M RoHS status is not specified in available documentation.

Q: Are moisture handling requirements identical for both components?

A: Both components are classified as MSL 1 (Unlimited), indicating no special moisture sensitivity precautions are required during storage, handling, or assembly. Identical moisture sensitivity classification eliminates process modifications between components.