Equivalent & Substitute Parts for 2SB1733TL

Part Overview

The Rohm Semiconductor 2SB1733TL is a PNP Bipolar Junction Transistor (BJT) used primarily in amplification and switching applications. It features a maximum collector current of 1 A, a collector-emitter voltage rating of 30 V, and is supplied in a TUMT3 surface-mount package. This component is classified as “Active” and is RoHS3 compliant, making it suitable for new designs. Engineering analysis of equivalent and substitute models is necessary to address requirements for inventory management, supply chain resilience, or design continuity, particularly in scenarios involving lead time constraints or sourcing challenges.

Substiute Parts

2SB1733TL

Rohm SemiconductorIn Stock: 55552SB1733TL Datasheet

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2SB1731TL

Rohm SemiconductorIn Stock: 382582SB1731TL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution is determined strictly by matching electrical and mechanical parameters relevant to the transistor function and mounting requirements. These parameters include transistor type, maximum collector current (Ic), maximum collector-emitter voltage (Vce), Vce saturation, DC current gain (hFE), maximum power dissipation, frequency transition, operating temperature, package designation, and compliance certifications (RoHS status, MSL, REACH). Compliance with these specifications ensures that substitute parts, such as the Rohm Semiconductor 2SB1731TL, fulfill the functional and mechanical roles of the original 2SB1733TL in assembly and circuit operation.

Key parameters for substitution:

• Transistor Type (PNP)
• Maximum Collector Current (Ic)
• Maximum Collector-Emitter Voltage (Vce)
• DC Current Gain (hFE)
• Package / Case
• Mounting Type
• RoHS/REACH/MSL Status

Parameter Comparison

Engineering Selection Recommendations

Both 2SB1733TL and 2SB1731TL transistors are classified as “Active,” are Rohs3 compliant, have MSL 1 (Unlimited), and are REACH unaffected. Inventory levels are listed for each part. Selection can be based on compliance requirements and product status, ensuring that supply preferences and parts qualification strategies are maintained.

Frequently Asked Questions (FAQ)

Q1: What parameters must match for substitutes in the Bipolar (BJT) Transistors category?
A1: Substitutes must match transistor type, maximum voltage and current ratings (Vce, Ic), DC gain (hFE), package/case, mounting method, and compliance standards.

Q2: Is the package type of 2SB1733TL and 2SB1731TL compatible for direct board replacement?
A2: Both 2SB1733TL and 2SB1731TL use the 3-SMD, Flat Leads package in TUMT3 format, enabling direct compatibility in placement and assembly.

Q3: Are the RoHS, REACH, and MSL compliance statuses the same for both parts?
A3: Yes, both parts are ROHS3 compliant, REACH unaffected, and have MSL 1 (Unlimited).

Q4: What should be checked when substituting BJT components in product design?
A4: Only parameters provided: electrical ratings (Ic, Vce), DC current gain (hFE), frequency, package, mounting type, and compliance certifications.

Q5: Can these substitutes be used in all applications where the original part was specified?
A5: Substitution must be based strictly on matching the explicit electrical and mechanical parameters provided.

Q6: Is there a difference in maximum collector power dissipation (Pmax) between 2SB1733TL and 2SB1731TL?
A6: 2SB1733TL specifies 800 mW, and 2SB1731TL specifies 400 mW as maximum power. Selection should be based on required power handling relative to the application.

Q7: Are there any differences in transition frequency (fT)? A7: 2SB1733TL transition frequency is 320MHz, while 2SB1731TL is 280MHz. Only use as a substitute where this transition frequency is acceptable.