Equivalent & Substitute Parts for 2SB07100RL

Part Overview

The 2SB07100RL is a PNP bipolar junction transistor manufactured by Panasonic Electronic Components, rated for 25 V collector-emitter breakdown voltage and 500 mA maximum collector current. This device is packaged in a Surface Mount Mini3-G1 package (TO-236-3/SC-59/SOT-23-3 footprint) and is designed for general-purpose switching and amplification applications with a maximum power dissipation of 200 mW.

The 2SB07100RL is classified as an obsolete product. Equivalent and substitute parts are necessary to maintain design continuity, ensure component availability, and support ongoing production requirements. The substitute parts listed below maintain electrical compatibility within the specified parameter ranges while offering active product status and improved availability.

Key Parameters

Parameter	Value	Unit
Transistor Type	PNP	—
Voltage - Collector Emitter Breakdown (Max)	25	V
Current - Collector (Ic) (Max)	500	mA
Power - Max	200	mW
Frequency - Transition	200	MHz
Vce Saturation (Max) @ Ib, Ic	600mV @ 30mA, 300mA	—
DC Current Gain (hFE) (Min) @ Ic, Vce	120 @ 150mA, 10V	—
Operating Temperature (Max)	150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—

Substitute Part Grouping Explanation

Substitution of the 2SB07100RL is determined by strict adherence to the following electrical and mechanical parameters:

Critical Compatibility Parameters:

Transistor Type: PNP (required for circuit polarity)
Voltage - Collector Emitter Breakdown (Max): 25 V (minimum requirement)
Current - Collector (Ic) (Max): 500 mA or greater (equal or higher rating acceptable)
Package / Case: TO-236-3, SC-59, SOT-23-3 (identical footprint required for Surface Mount compatibility)
Mounting Type: Surface Mount (required for PCB assembly compatibility)

Secondary Compatibility Parameters:

Power - Max: 200 mW or greater (equal or higher rating acceptable)
Operating Temperature (Max): 150°C (minimum requirement)
Current - Collector Cutoff (Max): 100nA (ICBO) (standard specification)

Substitute parts are grouped into two categories based on collector current rating:

Category A - 500 mA Rated Parts: BC808-25-TP, BC808-25LT1G, BCX18,215. These parts maintain the exact 500 mA collector current specification of the 2SB07100RL.

Category B - 800 mA Rated Parts: 2SA1298-Y,LF, BC808-16-TP, BC808-40-TP, KSA1298YMTF. These parts exceed the 500 mA specification and provide higher current capability within the same 25 V voltage rating and identical package footprint.

All substitute parts maintain the required 25 V collector-emitter breakdown voltage, Surface Mount packaging, and SOT-23-3 footprint compatibility.

Parameter Comparison

Part Number	Manufacturer	Ic (Max) mA	Vce(br) V	Power (Max) mW	Frequency (Transition) MHz	Vce Sat (Max) mV	hFE (Min)	Product Status	Package
2SB07100RL	Panasonic	500	25	200	200	600	120	Obsolete	SOT-23-3
2SA1298-Y,LF	Toshiba	800	25	200	120	400	160	Active	SOT-23-3
BC808-16-TP	Micro Commercial Co	800	25	300	170	700	100	Last Time Buy	SOT-23-3
BC808-25-TP	Micro Commercial Co	500	25	300	170	700	160	Active	SOT-23-3
BC808-25LT1G	onsemi	500	25	300	100	700	160	Active	SOT-23-3
BC808-40-TP	Micro Commercial Co	800	25	300	170	700	250	Active	SOT-23-3
BCX18,215	NXP USA Inc.	500	25	250	80	620	100	Active	SOT-23-3
KSA1298YMTF	onsemi	800	25	200	120	400	160	Active	SOT-23-3

Engineering Selection Recommendations

For Direct Replacement (Matched Specifications):

BC808-25LT1G is the primary recommended substitute. This part maintains the 500 mA collector current specification of the 2SB07100RL, is manufactured by onsemi with Active product status, carries RoHS3 compliance, and is available in high inventory (15,300 pieces). The part is packaged in SOT-23-3 (TO-236) with identical footprint compatibility. Operating temperature range extends to -55°C, exceeding the 2SB07100RL minimum requirement.

BC808-25-TP is an alternative direct replacement option. Manufactured by Micro Commercial Co with Active product status, this part matches the 500 mA collector current specification and provides enhanced power dissipation (300 mW versus 200 mW). Operating temperature range is -65°C to 150°C.

For Higher Current Applications:

2SA1298-Y,LF and KSA1298YMTF are functionally equivalent parts with 800 mA collector current capability. Both maintain the 25 V voltage rating, identical SOT-23-3 package, and Active product status. The 2SA1298-Y,LF is manufactured by Toshiba with RoHS3 compliance. The KSA1298YMTF is manufactured by onsemi with RoHS3 compliance and highest inventory availability (35,400 pieces). These parts are suitable for applications requiring higher current headroom within the same voltage and package constraints.

For Automotive Applications:

BCX18,215 is qualified to AEC-Q101 automotive standard and carries Automotive grade designation. This part maintains 500 mA collector current specification and is manufactured by NXP USA Inc. with Active product status. This option is appropriate for automotive-grade circuit implementations.

Parts to Avoid:

BC808-16-TP carries Last Time Buy status and should not be selected for new designs requiring long-term component availability.

Frequently Asked Questions (FAQ)

Q: Can I use an 800 mA rated substitute in place of the 500 mA 2SB07100RL?

A: Yes. The 800 mA rated parts (2SA1298-Y,LF, BC808-16-TP, BC808-40-TP, KSA1298YMTF) are electrically compatible substitutes. Higher current ratings provide additional design margin and do not create incompatibility. The circuit will operate within specification as long as the 25 V voltage rating and SOT-23-3 package requirements are maintained.

Q: Are all substitute parts in the same physical package?

A: Yes. All substitute parts listed are packaged in TO-236-3, SC-59, or SOT-23-3 designations, which are equivalent Surface Mount packages with identical footprints. Direct PCB placement substitution is possible without layout modification.

Q: What is the difference between the Vce saturation specifications?

A: Vce saturation varies among substitutes (ranging from 400 mV to 700 mV at specified test conditions). Lower saturation voltage indicates more efficient switching with reduced power dissipation in saturated states. The 2SB07100RL specifies 600 mV at 30 mA base current and 300 mA collector current. Substitute parts with lower saturation voltage (2SA1298-Y,LF and KSA1298YMTF at 400 mV) provide improved performance in switching applications.

Q: Which substitute has the best availability?

A: KSA1298YMTF has the highest inventory availability at 35,400 pieces. BC808-25LT1G is the second highest at 15,300 pieces. Both parts are manufactured by established suppliers with Active product status.

Q: Can I use BCX18,215 in a general-purpose application?

A: BCX18,215 is suitable for general-purpose applications and maintains all critical electrical parameters (500 mA, 25 V, SOT-23-3). However, this part is qualified to automotive standard AEC-Q101 and carries Automotive grade designation. It is appropriate for both automotive and general industrial applications.

Q: What is the significance of RoHS3 compliance?

A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead and other hazardous materials. Parts with RoHS3 compliance (2SA1298-Y,LF, BC808-25LT1G, KSA1298YMTF) are suitable for applications subject to environmental regulations and are preferred for new designs.

Q: How do I select between BC808-25-TP and BC808-25LT1G?

A: Both parts maintain 500 mA collector current and 25 V voltage rating with identical SOT-23-3 packaging. BC808-25LT1G is manufactured by onsemi with RoHS3 compliance and higher inventory (15,300 pieces). BC808-25-TP is manufactured by Micro Commercial Co with Active status. BC808-25LT1G is the preferred choice for new designs due to compliance certification and availability.

Q: Is the transition frequency difference significant?

A: The 2SB07100RL specifies 200 MHz transition frequency. Substitute parts range from 80 MHz (BCX18,215) to 170 MHz (BC808-25-TP, BC808-16-TP, BC808-40-TP). For low-frequency switching applications (below 50 MHz), all substitutes are acceptable. For high-frequency applications approaching 200 MHz, BC808-25-TP or BC808-40-TP are preferred to maintain performance margin.

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