2SB1197-R-TP Equivalent & Substitute Parts

Part Overview

The 2SB1197-R-TP is a PNP bipolar junction transistor manufactured by Micro Commercial Co, designed for general-purpose switching and amplification applications. This surface mount device operates at 32 V maximum collector-emitter breakdown voltage with a maximum collector current of 800 mA and 200 mW power dissipation capability. The part is classified as Active product status with full inventory availability. Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support alternative packaging or performance requirements within specified electrical and mechanical parameters.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Current - Collector (Ic) (Max)	800	mA
Voltage - Collector Emitter Breakdown (Max)	32	V
Power - Max	200	mW
Frequency - Transition	50	MHz
Operating Temperature Range	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—

Substitute Part Grouping Explanation

Substitution eligibility for the 2SB1197-R-TP is determined by the following critical parameters:

Mandatory Matching Criteria:

Transistor Type: PNP
Current - Collector (Ic) (Max): 800 mA minimum
Voltage - Collector Emitter Breakdown (Max): 32 V minimum
Power - Max: 200 mW minimum
Mounting Type: Surface Mount
Package / Case: TO-236-3, SC-59, SOT-23-3 compatible

Allowable Variations:

Frequency - Transition: May exceed 50 MHz
Operating Temperature Range: May exceed -55°C to 150°C
DC Current Gain (hFE): May vary within device specifications
Vce Saturation: May vary within device specifications
Current - Collector Cutoff (ICBO): May vary within device specifications

Substitute parts 2SB1197KT146Q, 2SB1197KT146R, PMBT2907,215, and PMBT4403Z meet or exceed the mandatory electrical and mechanical parameters of the 2SB1197-R-TP.

Parameter Comparison

Parameter	2SB1197-R-TP	2SB1197KT146Q	2SB1197KT146R	PMBT2907,215	PMBT4403Z
Manufacturer	Micro Commercial Co	Rohm Semiconductor	Rohm Semiconductor	NXP USA Inc.	Nexperia USA Inc.
Transistor Type	PNP	PNP	PNP	PNP	PNP
Current - Collector (Ic) (Max)	800 mA	800 mA	800 mA	600 mA	600 mA
Voltage - Collector Emitter Breakdown (Max)	32 V	32 V	32 V	40 V	40 V
Power - Max	200 mW	200 mW	200 mW	250 mW	250 mW
Frequency - Transition	50 MHz	200 MHz	200 MHz	200 MHz	200 MHz
Operating Temperature (TJ)	-55 to 150°C	150°C	150°C	150°C	150°C
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	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
Supplier Device Package	SOT-23	SMT3	SMT3	SOT-23	TO-236AB
Product Status	Active	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	Not specified	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalents (Identical Base Product Number):

Parts 2SB1197KT146Q and 2SB1197KT146R are manufactured by Rohm Semiconductor under the same base product number 2SB1197. Both parts maintain identical maximum electrical ratings for collector current (800 mA), collector-emitter breakdown voltage (32 V), and power dissipation (200 mW). These parts are fully compatible with the 2SB1197-R-TP in applications requiring these specifications. Both are Active status products with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). The primary differences are packaging format (Cut Tape & Digi-Reel versus Tape & Reel) and DC current gain specifications (120 @ 100mA, 3V for 2SB1197KT146Q and 180 @ 100mA, 3V for 2SB1197KT146R). Transition frequency is enhanced to 200 MHz in both variants.

Functional Substitutes (Different Base Product Number):

Parts PMBT2907,215 and PMBT4403Z are manufactured by NXP USA Inc. and Nexperia USA Inc., respectively. These parts provide higher voltage ratings (40 V collector-emitter breakdown) and increased power dissipation (250 mW) compared to the 2SB1197-R-TP. However, maximum collector current is reduced to 600 mA. Both parts are Active status products with ROHS3 compliance, unlimited MSL, and automotive qualification (AEC-Q101). These substitutes are suitable for applications where the 2SB1197-R-TP specifications are met or exceeded, with the understanding that the lower collector current rating may limit use in high-current switching applications.

Frequently Asked Questions (FAQ)

Q: Can 2SB1197KT146Q and 2SB1197KT146R be used interchangeably with 2SB1197-R-TP?

A: Yes. Both parts share the identical base product number 2SB1197 and maintain the same maximum electrical ratings for collector current (800 mA), collector-emitter breakdown voltage (32 V), and power dissipation (200 mW). Packaging format and DC current gain specifications differ, but electrical compatibility is maintained for applications within the specified parameter ranges.

Q: What are the limitations when substituting PMBT2907,215 or PMBT4403Z for 2SB1197-R-TP?

A: PMBT2907,215 and PMBT4403Z have reduced maximum collector current (600 mA versus 800 mA). These parts are suitable only for applications where collector current does not exceed 600 mA. Both parts offer higher voltage ratings (40 V) and increased power dissipation (250 mW), making them suitable for higher-voltage applications. Vce saturation characteristics differ between parts and must be evaluated for specific circuit requirements.

Q: Are all substitute parts surface mount compatible with the original 2SB1197-R-TP footprint?

A: All substitute parts use surface mount technology with TO-236-3, SC-59, or SOT-23-3 package designations. Physical footprints are compatible. Supplier device package designations vary (SOT-23, SMT3, TO-236AB), but these represent equivalent physical packages suitable for standard SOT-23 land patterns.

Q: What compliance certifications apply to substitute parts?

A: 2SB1197KT146Q and 2SB1197KT146R are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1). PMBT2907,215 and PMBT4403Z are ROHS3 compliant with unlimited MSL and carry automotive qualification (AEC-Q101). All parts are REACH unaffected and classified as EAR99 for export control purposes.

Q: Can the 2SB1197-R-TP be used in automotive applications?

A: The 2SB1197-R-TP does not carry automotive qualification. PMBT2907,215 and PMBT4403Z are AEC-Q101 qualified for automotive use. For automotive applications, PMBT2907,215 or PMBT4403Z are the appropriate selections among the listed substitutes.

Q: How do DC current gain specifications affect substitution?

A: DC current gain (hFE) varies across substitute parts: 2SB1197-R-TP specifies 82 @ 100mA, 3V; 2SB1197KT146Q specifies 120 @ 100mA, 3V; 2SB1197KT146R specifies 180 @ 100mA, 3V; PMBT2907,215 specifies 100 @ 150mA, 10V; PMBT4403Z specifies 100 @ 150mA, 2V. Higher hFE values reduce base drive requirements. Circuit designs relying on specific gain characteristics must account for these variations.

Q: What is the significance of transition frequency differences?

A: The 2SB1197-R-TP operates at 50 MHz transition frequency, while all substitute parts operate at 200 MHz. Higher transition frequency enables faster switching and higher-frequency signal amplification. Applications limited to lower frequencies are unaffected by this difference. High-frequency applications benefit from the enhanced transition frequency of substitute parts.

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