2SB1561T100Q Equivalent & Substitute Parts Reference

Part Overview

The 2SB1561T100Q from Rohm Semiconductor is a surface-mount PNP bipolar junction transistor (BJT) intended for general-purpose electronic switching applications. It features a 60 V collector-emitter voltage, 2 A maximum collector current, and a transition frequency of 200 MHz, all contained in an MPT3 (TO-243AA) package. This part is categorized as Not For New Designs, indicating that sourcing alternatives is required due to lifecycle status. Identifying equivalent and substitute transistors is critical to ensure product continuity and future availability for maintenance or design migrations.

Key Parameters

Parameter	Value
Transistor Type	PNP
Current - Collector (Ic) (Max)	2 A
Voltage - Collector Emitter Breakdown (Max)	60 V
Vce Saturation (Max) @ Ib, Ic	350mV @ 50mA, 1A
Current - Collector Cutoff (Max) (ICBO)	100nA
DC Current Gain (hFE) (Min) @ Ic, Vce	120 @ 500mA, 2V
Power - Max	2 W
Frequency - Transition	200MHz
Operating Temperature	150°C (TJ)
Mounting Type	Surface Mount
Package / Case	TO-243AA
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Equivalent and substitute BJTs are selected based on exact correspondence in key parameters: transistor type (PNP), surface-mount package (TO-243AA or compatible), voltage and current ratings, cutoff current, DC current gain, maximum power dissipation, transition frequency, operating temperature, RoHS and REACH status, moisture sensitivity, and packaging similarity. Only transistors meeting or exceeding these electrical and mechanical thresholds are included as substitutes.

Key parameters for substitution:

Transistor Type
Collector-Emitter Voltage (Max)
Collector Current (Max)
Collector Cutoff Current (Max)
DC Current Gain (Min)
Power Dissipation (Max)
Transition Frequency
Mounting/Package
Environmental Compliance

Parameter Comparison

Manufacturer Part Number	Manufacturer	Transistor Type	Vce (Max)	Ic (Max)	Vce(sat) Max @ Ib, Ic	ICBO (Max)	hFE (Min)	Power (Max)	fT	Operating Temp (TJ)	Mounting Type	Package / Case	RoHS	MSL	REACH	Product Status
2SB1561T100Q	Rohm Semiconductor	PNP	60 V	2 A	350mV @ 50mA, 1A	100nA	120 @ 500mA, 2V	2 W	200MHz	150°C	Surface Mount	TO-243AA	ROHS3	1	Unaffected	Not For New Designs
2SA1213-Y-TP	Micro Commercial Co	PNP	50 V	2 A	500mV @ 50mA, 1A	100nA	70 @ 500mA, 2V	1 W	100MHz	150°C	Surface Mount	TO-243AA	ROHS3	1	Unaffected	Active
2SB1123S-TD-E	onsemi	PNP	50 V	2 A	700mV @ 50mA, 1A	100nA	100 @ 100mA, 2V	500 mW	150MHz	150°C	Surface Mount	TO-243AA	ROHS3	1	Unaffected	Active
2SB1123T-TD-E	onsemi	PNP	50 V	2 A	700mV @ 50mA, 1A	100nA	200 @ 100mA, 2V	500 mW	150MHz	150°C	Surface Mount	TO-243AA	ROHS3	1	Unaffected	Active
BCX53-16-AU_R1_000A1	Panjit International Inc.	PNP	100 V	1 A	600mV @ 100mA, 1A	100nA	100 @ 150mA, 2V	1.4 W	100MHz	150°C	Surface Mount	TO-243AA	ROHS3	1	Unaffected	Active
PBSS304PX,115	Nexperia USA Inc.	PNP	60 V	4.2 A	310mV @ 210mA, 4.2A	100nA	150 @ 2A, 2V	2.1 W	130MHz	150°C	Surface Mount	TO-243AA	ROHS3	1	Unaffected	Active
PBSS5250XZ	Nexperia USA Inc.	PNP	50 V	2 A	380mV @ 100mA, 2A	100nA	200 @ 1A, 2V	550 mW	100MHz	150°C	Surface Mount	TO-243AA	ROHS3	1	Unaffected	Active
PXT2907A,115	Nexperia USA Inc.	PNP	60 V	600 mA	1.6V @ 50mA, 500mA	10nA	100 @ 150mA, 2V	1.1 W	200MHz	150°C	Surface Mount	TO-243AA	ROHS3	1	Unaffected	Active
PZT751T1G	onsemi	PNP	60 V	2 A	500mV @ 200mA, 2A	100nA	75 @ 1A, 2V	800 mW	75MHz	150°C	Surface Mount	TO-261-4, TO-261AA	ROHS3	1	Unaffected	Active

Engineering Selection Recommendations

The 2SB1561T100Q is listed as Not For New Designs. All substitute products referenced provide ROHS3 compliance, REACH unchanged status, and Moisture Sensitivity Level 1 (Unlimited), satisfying necessary environmental and handling requirements. Substitute parts also maintain an Active product status, supporting continued supply and design-in suitability. Engineering selection can be based on lifecycle and compliance status directly from the comparison table above.

Frequently Asked Questions (FAQ)

Q1: What key parameters are considered for substituting a BJT transistor like 2SB1561T100Q?
A1: The substitute must match the transistor type (PNP), equal or better voltage and current ratings, surface-mount package (TO-243AA or functionally compatible), maximum power dissipation, minimum DC current gain, transition frequency, and environmental compliance statuses (RoHS, REACH, MSL).

Q2: Are all substitute parts in the same physical package as the 2SB1561T100Q?
A2: All listed substitutes use the TO-243AA or compatible packages suitable for surface mounting, ensuring mechanical compatibility.

Q3: What is the significance of product status in part selection?
A3: The main part is Not For New Designs, while all substitutes are Active. This supports reliable sourcing and long-term design continuity.

Q4: Are all substitutes compliant with environmental and moisture sensitivity standards?
A4: All listed substitute parts are ROHS3 Compliant, REACH Unaffected, and MSL 1 (Unlimited), supporting aligned environmental and quality process requirements.

Q5: How does transition frequency and hFE minimum value affect substitution?
A5: These values indicate frequency response and amplification ability, which must meet or exceed application requirements. Only substitutes with comparable or specified values are included.

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