2SB1197-P-TP Equivalent & Substitute Bipolar (BJT) Transistor Reference

Part Overview

The 2SB1197-P-TP from Micro Commercial Co is a surface mount PNP bipolar junction transistor rated at 32 V, 800 mA, and 200 mW in a SOT-23 package. This device is part of the transistors, bipolar (BJT) category and is now classified as "Last Time Buy," indicating its approaching discontinuation or limited future availability. Identifying and evaluating substitute models is essential for ongoing designs and inventory continuity, particularly when the product reaches end-of-life status.

Key Parameters

Parameter	Value
Transistor Type	PNP
Voltage - Collector Emitter Breakdown (Max)	32 V
Current - Collector (Ic) (Max)	800 mA
Vce Saturation (Max) @ Ib, Ic	500mV @ 50mA, 500mA
Current - Collector Cutoff (Max)	500nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce	82 @ 100mA, 3V
Power - Max	200 mW
Frequency - Transition	50MHz
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	TO-236-3, SC-59, SOT-23-3

Substitute Part Grouping Explanation

Substitute parts are selected if they match the following mandatory parameters:

Transistor Type (PNP)
Maximum Voltage - Collector Emitter Breakdown (Vce)
Maximum Collector Current (Ic)
Power Dissipation
Mounting Type and Package Compatibility
Vce Saturation and DC Current Gain at compatible test conditions
Any difference in parameters is accepted only if it falls within specified maximums without violating the limits of the application as outlined for this category.

Parameter Comparison

Parameter	2SB1197-P-TP	2SB1197KT146Q	2SB1197KT146R	30A02CH-TL-E	MMBT4403LT3G
Transistor Type	PNP	PNP	PNP	PNP	PNP
Voltage - Collector Emitter Breakdown (Max)	32 V	32 V	32 V	30 V	40 V
Current - Collector (Ic) (Max)	800 mA	800 mA	800 mA	700 mA	600 mA
Vce Saturation (Max) @ Ib, Ic	500mV @ 50mA, 500mA	500mV @ 50mA, 500mA	500mV @ 50mA, 500mA	220mV @ 10mA, 200mA	750mV @ 50mA, 500mA
Current - Collector Cutoff (Max)	500nA (ICBO)	500nA (ICBO)	500nA (ICBO)	100nA (ICBO)	-
DC Current Gain (hFE) (Min) @ Ic, Vce	82 @ 100mA, 3V	120 @ 100mA, 3V	180 @ 100mA, 3V	200 @ 10mA, 2V	100 @ 150mA, 2V
Power - Max	200 mW	200 mW	200 mW	700 mW	300 mW
Frequency - Transition	50MHz	200MHz	200MHz	520MHz	200MHz
Operating Temperature	-55°C ~ 150°C (TJ)	150°C (TJ)	150°C (TJ)	150°C (TJ)	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	SC-96	TO-236-3, SC-59, SOT-23-3

Engineering Selection Recommendations

Selection of substitute transistors should consider product status, RoHS and REACH compliance, and supply continuity. Among the listed substitutes, 2SB1197KT146Q, 2SB1197KT146R, 30A02CH-TL-E, and MMBT4403LT3G are designated as "Active," with relevant RoHS3 and REACH Unaffected statuses, supporting ongoing production requirements. Package compatibility and regulatory certifications must be aligned with the application criteria and environmental directives as specified in the product data.

Frequently Asked Questions (FAQ)

Q: What is the essential criteria for substituting the 2SB1197-P-TP?
A: Substitution is based on matching transistor type, maximum voltage and current ratings, Vce saturation, power dissipation, DC current gain, mounting type, and package.

Q: Are all SOT-23 and TO-236-3 packages interchangeable for these transistors?
A: SOT-23, TO-236-3, and SC-59 refer to industry-standard surface mount packages with compatible PCB footprints within this product category.

Q: How does RoHS and REACH compliance impact component selection?
A: RoHS3 and REACH Unaffected status indicate environmental compliance, which is mandatory in regulated applications and for global supply chains.

Q: Is it necessary to consider frequency transition parameters when selecting a substitute?
A: Only if transition frequency is specified as a key parameter for the end application.

Q: Can substitute transistors with higher current or voltage ratings be used?
A: Only parameters meeting or exceeding application requirements, without exceeding maximum ratings, are considered for direct substitution in this category.

Q: Are the listed substitutes direct cross-references to the 2SB1197-P-TP?
A: All substitutes listed meet the allowed electrical and package parameters as declared in the component documentation for this category.

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