BCR133E6393HTSA1 Equivalent & Substitute Parts

Part Overview

The BCR133E6393HTSA1 is a pre-biased NPN bipolar junction transistor (BJT) manufactured by Infineon Technologies, designed for surface mount applications in the SOT-23-3 package. This device integrates internal base and emitter resistors, enabling simplified circuit design with reduced component count. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

BCR133E6393HTSA1

Infineon TechnologiesIn Stock: 922BCR133E6393HTSA1 Datasheet

Current PartRFQ

MMUN2211LT1G

onsemiIn Stock: 1744654MMUN2211LT1G Datasheet

DirectRFQ

SMMUN2211LT1G

onsemiIn Stock: 245284SMMUN2211LT1G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BCR133E6393HTSA1 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Transistor type: NPN pre-biased configuration
• Maximum collector current: 100 mA
• Collector-emitter breakdown voltage: 50 V
• Internal base resistor: 10 kOhms
• Internal emitter-base resistor: 10 kOhms
• Package: SOT-23-3 (TO-236)
• Mounting: Surface mount

Substitute Parts Identified:

The MMUN2211LT1G (onsemi, Cut Tape packaging) and SMMUN2211LT1G (onsemi, Tape & Reel packaging, automotive grade) meet all electrical and mechanical equivalence requirements. Both parts maintain identical internal resistor values, maximum collector current, and breakdown voltage specifications. The SMMUN2211LT1G variant includes AEC-Q101 automotive qualification, suitable for applications requiring automotive-grade reliability.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: MMUN2211LT1G

The MMUN2211LT1G is the direct functional equivalent to the BCR133E6393HTSA1. Both parts share identical electrical specifications for collector current, breakdown voltage, and internal resistor configuration. The MMUN2211LT1G is manufactured by onsemi and maintains active product status, ensuring long-term availability and supply chain continuity. This part is suitable for standard industrial and consumer applications where automotive qualification is not required.

Automotive-Grade Alternative: SMMUN2211LT1G

The SMMUN2211LT1G provides equivalent electrical performance with the addition of AEC-Q101 automotive qualification. This variant is appropriate for applications requiring automotive-grade reliability and traceability. Both onsemi substitutes demonstrate superior maximum power dissipation (246 mW versus 200 mW) and lower saturation voltage, providing enhanced performance margins in the target application.

Compliance Considerations:

All three parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), ensuring compatibility with modern manufacturing processes and storage requirements. The onsemi alternatives are currently in active production status, eliminating obsolescence risk associated with the original Infineon part.

Frequently Asked Questions (FAQ)

Q: Can MMUN2211LT1G directly replace BCR133E6393HTSA1 without circuit modification?

A: Yes. Both parts are pre-biased NPN transistors with identical internal resistor values (10 kOhms base, 10 kOhms emitter-base), maximum collector current (100 mA), and breakdown voltage (50 V). The SOT-23-3 package pinout is identical. No circuit changes are required.

Q: What is the difference between MMUN2211LT1G and SMMUN2211LT1G?

A: Both parts are electrically identical. The primary difference is packaging format and automotive qualification. MMUN2211LT1G is supplied in Cut Tape (CT) & Digi-Reel format for standard applications. SMMUN2211LT1G is supplied in Tape & Reel format and includes AEC-Q101 automotive qualification for applications requiring automotive-grade reliability.

Q: Are there any performance differences between the BCR133E6393HTSA1 and MMUN2211LT1G substitutes?

A: The onsemi substitutes demonstrate improved performance in two areas: maximum power dissipation increases from 200 mW to 246 mW, and saturation voltage decreases from 300 mV to 250 mV. These differences represent performance enhancements that maintain backward compatibility while providing additional design margin.

Q: Is the SOT-23-3 package identical across all three parts?

A: Yes. All three parts use the SOT-23-3 (TO-236, SC-59) package with identical pinout and mechanical dimensions. Direct board-level substitution is possible without PCB redesign.

Q: What is the significance of the obsolete status for BCR133E6393HTSA1?

A: Obsolete status indicates that Infineon has discontinued production and will not manufacture additional units. Existing inventory may become unavailable. The onsemi MMUN2211LT1G and SMMUN2211LT1G alternatives are in active production status, ensuring reliable long-term supply for new designs and ongoing production requirements.

Q: Are all three parts RoHS3 compliant?

A: Yes. The BCR133E6393HTSA1, MMUN2211LT1G, and SMMUN2211LT1G are all ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.