Equivalent & Substitute Parts for 2SB1275TLP (Rohm Semiconductor)

Part Overview

2SB1275TLP by Rohm Semiconductor is a PNP bipolar junction transistor categorized under Transistors, Bipolar (BJT), with a maximum collector-emitter voltage of 160 V, collector current of 1.5 A, and a maximum power rating of 10 W. It is designed for surface mount application in a CPT3 package (TO-252-3, DPAK, SC-63). The product status is "Not For New Designs," necessitating identification of suitable substitute parts for new projects or ongoing production as inventory transitions away from this model.

Key Parameters

Parameter	2SB1275TLP
Transistor Type	PNP
Current - Collector (Ic) (Max)	1.5 A
Voltage - Collector Emitter Breakdown (Max)	160 V
DC Current Gain (hFE) (Min) @ Ic, Vce	82 @ 100mA, 5V
Vce Saturation (Max) @ Ib, Ic	2V @ 100mA, 1A
Current - Collector Cutoff (Max) (ICBO)	1µA
Power - Max	10 W
Frequency - Transition	50MHz
Operating Temperature (TJ)	150°C
Mounting Type	Surface Mount
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63
Supplier Device Package	CPT3
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 2SB1275TLP are selected strictly by matching its core specifications: transistor type (PNP), maximum collector current, collector-emitter breakdown voltage, package compatibility, mounting type, and compliance statuses (RoHS, REACH). These parameters ensure electrical and mechanical compatibility within the category of surface mount PNP bipolar transistors for replacement or design continuity.

Parameter Comparison

Parameter	2SB1275TLP (Rohm)	2SA1552S-TL-H (onsemi)
Transistor Type	PNP	PNP
Current - Collector (Ic) (Max)	1.5 A	1.5 A
Voltage - Collector Emitter Breakdown (Max)	160 V	160 V
DC Current Gain (hFE) (Min) @ Ic, Vce	82 @ 100mA, 5V	100 @ 100mA, 5V
Vce Saturation (Max) @ Ib, Ic	2V @ 100mA, 1A	500mV @ 50mA, 500mA
Current - Collector Cutoff (Max) (ICBO)	1µA	1µA
Power - Max	10 W	1 W
Frequency - Transition	50MHz	120MHz
Operating Temperature (TJ)	150°C	150°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63	TO-252-3, DPAK (2 Leads + Tab), SC-63
Supplier Device Package	CPT3	TP-FA
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

2SB1275TLP is designated "Not For New Designs," indicating immediate need for substitutes in new designs to ensure long-term availability. Substitute part 2SA1552S-TL-H is current and marked "Active." Both are ROHS3 compliant, REACH unaffected, and share Moisture Sensitivity Level 1 (Unlimited), meeting essential regulatory and process compatibility standards. Package and mounting types are identical and suitable for direct drop-in within matched footprints.

Frequently Asked Questions (FAQ)

Q1: What determines whether a transistor is a valid substitute in this category?
Only transistors sharing PNP type, maximum collector current, voltage rating, surface mount compatibility, package type, and compliance status are considered direct category substitutes.

Q2: Is package compatibility between 2SB1275TLP and 2SA1552S-TL-H assured?
Both use TO-252-3, DPAK (2 Leads + Tab), SC-63 surface mount cases, supporting direct PCB footprint compatibility.

Q3: Does compliance status affect substitute selection?
Both 2SB1275TLP and substitute options are ROHS3 compliant and have "REACH Unaffected" status, meeting regulated manufacturing requirements for global sourcing.

Q4: Are there limitations when substituting regarding maximum ratings or performance?
Substitutes must be equal to or greater in ratings for collector current and voltage breakdown. Other electrical characteristics, such as DC current gain and power dissipation, are matched strictly as specified.

Q5: Is Moisture Sensitivity Level relevant in selection?
All parts listed have MSL 1 (Unlimited), confirming stable performance during soldering and reflow cycles without special handling.

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