BC848BW-TP Equivalent & Substitute Parts

Part Overview

The BC848BW-TP is an NPN bipolar junction transistor manufactured by Micro Commercial Co, designed for interface applications in surface mount configurations. This small-signal transistor operates at a maximum collector current of 100 mA with a collector-emitter breakdown voltage of 30 V and a transition frequency of 100 MHz. The device is housed in a SOT-323 (SC-70) package and dissipates a maximum of 150 mW. The BC848BW-TP maintains active product status with 683 units currently in stock. Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and operational parameters that ensure functional interchangeability within specified application constraints.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Current - Collector (Ic) Max	100	mA
Voltage - Collector Emitter Breakdown (Max)	30	V
Vce Saturation (Max) @ Ib, Ic	600 mV @ 5 mA, 100 mA	—
Current - Collector Cutoff (Max)	15	nA
DC Current Gain (hFE) Min @ Ic, Vce	200 @ 2 mA, 5 V	—
Power - Max	150	mW
Frequency - Transition	100	MHz
Operating Temperature Range	-65 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	SC-70, SOT-323	—

Substitute Part Grouping Explanation

Substitution of the BC848BW-TP is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

Transistor type must be NPN
Maximum collector current must be 100 mA or greater
Collector-emitter breakdown voltage must be 30 V or greater
Vce saturation must not exceed 600 mV at specified test conditions
DC current gain (hFE) must meet or exceed the minimum specification at rated conditions
Transition frequency must be 100 MHz or greater

Mechanical Compatibility Criteria:

Package must be SOT-323 or SC-70 (equivalent designations)
Surface mount mounting type required
Supplier device package must be compatible with SOT-323 footprint

Operational Criteria:

Operating temperature range must encompass or match the application requirement
Power dissipation rating must support the intended circuit application

Substitute parts are grouped into two categories: Direct Equivalents (matching all primary electrical specifications) and Enhanced Substitutes (exceeding one or more electrical parameters while maintaining full backward compatibility).

Parameter Comparison

Part Number	Manufacturer	Ic (Max) mA	Vce(br) V	hFE Min @ 2mA, 5V	Power Max mW	Freq MHz	Temp Range °C	Package	Packaging Type
BC848BW-TP	Micro Commercial Co	100	30	200	150	100	-65 to 150	SOT-323	Bulk
BC848AW RFG	Taiwan Semiconductor Corporation	100	30	110	200	100	-55 to 150	SOT-323	Tape & Reel
BC848AW-7-F	Diodes Incorporated	100	30	110	200	300	-65 to 150	SOT-323	Tape & Reel
BC848BW RFG	Taiwan Semiconductor Corporation	100	30	200	200	100	-55 to 150	SOT-323	Tape & Reel
BC848BWT1G	onsemi	100	30	200	150	100	-55 to 150	SOT-323	Tape & Reel
BC848CW RFG	Taiwan Semiconductor Corporation	100	30	420	200	100	-55 to 150	SOT-323	Tape & Reel
BC849AW RFG	Taiwan Semiconductor Corporation	100	30	110	200	100	-55 to 150	SOT-323	Tape & Reel
BC849BW RFG	Taiwan Semiconductor Corporation	100	30	200	200	100	-55 to 150	SOT-323	Tape & Reel
BC849CW RFG	Taiwan Semiconductor Corporation	100	30	420	200	100	-55 to 150	SOT-323	Tape & Reel

Engineering Selection Recommendations

Direct Equivalents (Identical Electrical Performance):

BC848BWT1G (onsemi) provides direct electrical equivalence to the BC848BW-TP with matching collector current, breakdown voltage, DC current gain, power dissipation, and transition frequency. Both devices operate across overlapping temperature ranges (-55°C to 150°C for BC848BWT1G versus -65°C to 150°C for BC848BW-TP). The BC848BWT1G is RoHS3 compliant and carries MSL 1 rating. This part is suitable for applications where the narrower lower temperature limit (-55°C versus -65°C) does not constrain operation.

BC848BW RFG (Taiwan Semiconductor Corporation) matches the BC848BW-TP in all primary electrical specifications including hFE minimum of 200 at rated conditions. Power dissipation is rated at 200 mW, exceeding the 150 mW specification of the main part. This device is RoHS3 compliant with MSL 1 rating and is available in Tape & Reel packaging.

Enhanced Substitutes (Superior Electrical Performance):

BC848AW-7-F (Diodes Incorporated) provides enhanced transition frequency of 300 MHz compared to the 100 MHz specification of BC848BW-TP, while maintaining all other electrical parameters at or above minimum requirements. This device operates across the full temperature range of -65°C to 150°C, matching the main part. RoHS3 compliance and MSL 1 rating are provided. The enhanced frequency capability supports applications requiring higher-speed switching performance.

BC848CW RFG and BC849CW RFG (Taiwan Semiconductor Corporation) both feature elevated DC current gain (hFE minimum of 420 at 2 mA, 5 V) compared to the 200 minimum of BC848BW-TP. These devices maintain all other electrical specifications at or above requirements and are RoHS3 compliant with MSL 1 rating. Higher current gain may reduce base drive requirements in certain circuit topologies.

Compatibility Considerations:

All substitute parts listed maintain SOT-323 package compatibility and surface mount mounting type. All devices are active products with established supply chains. Tape & Reel packaging is standard for substitute parts, whereas the main part is supplied in Bulk packaging. Temperature range differences should be evaluated against specific application requirements, particularly for the lower temperature limit in designs operating below -55°C.

Frequently Asked Questions (FAQ)

Q: Can BC848BW RFG be used as a direct replacement for BC848BW-TP?

A: Yes. BC848BW RFG matches the BC848BW-TP across all critical electrical parameters: 100 mA maximum collector current, 30 V breakdown voltage, 200 minimum DC current gain at rated conditions, and 100 MHz transition frequency. Both devices are housed in SOT-323 packages. The primary difference is packaging format (Tape & Reel versus Bulk) and a 50 mW increase in power dissipation rating (200 mW versus 150 mW), which provides additional thermal margin.

Q: What is the difference between BC848 and BC849 series transistors?

A: BC848 and BC849 are distinct base product numbers within the same family. Both are NPN transistors with identical electrical specifications for maximum collector current (100 mA), breakdown voltage (30 V), and transition frequency (100 MHz). The primary distinction lies in DC current gain (hFE) classification. BC848 variants are specified with hFE minimum of 200 at 2 mA, 5 V, while BC849 variants are specified with hFE minimum of 110 at the same conditions. Selection between series depends on circuit requirements for base drive and current amplification.

Q: Is BC848AW-7-F compatible with applications designed for BC848BW-TP?

A: Yes, with consideration for enhanced performance. BC848AW-7-F maintains full electrical compatibility with BC848BW-TP across collector current, breakdown voltage, saturation voltage, and DC current gain specifications. The transition frequency of 300 MHz in BC848AW-7-F exceeds the 100 MHz specification of BC848BW-TP, providing superior high-frequency performance. Operating temperature range extends to -65°C, matching the main part. This device is suitable for direct substitution in applications where higher switching speed is beneficial or neutral.

Q: What packaging differences exist between substitute parts?

A: The BC848BW-TP is supplied in Bulk packaging, while all listed substitute parts are supplied in Tape & Reel (TR) format. Both packaging types contain identical components in SOT-323 packages. Tape & Reel packaging is standard for automated assembly processes and provides improved handling and traceability. Bulk packaging is typically used for manual assembly or lower-volume applications. Footprint and electrical performance are identical between packaging formats.

Q: Are all substitute parts RoHS compliant?

A: The BC848BW-TP does not specify RoHS status in the provided data. All listed substitute parts are RoHS3 compliant and carry Moisture Sensitivity Level (MSL) 1 rating (Unlimited), indicating no moisture sensitivity constraints during storage and handling. All parts are REACH Unaffected and classified as EAR99 for export control purposes.

Q: Can BC848CW RFG be used in place of BC848BW-TP if higher current gain is required?

A: Yes. BC848CW RFG provides a minimum DC current gain of 420 at 2 mA, 5 V, compared to 200 for BC848BW-TP. This higher gain is fully backward compatible and reduces base drive requirements in circuits designed for the lower gain specification. All other electrical parameters (collector current, breakdown voltage, saturation voltage, transition frequency) meet or exceed BC848BW-TP specifications. The device is housed in an identical SOT-323 package.

Q: What is the operating temperature range consideration for substitute selection?

A: BC848BW-TP operates from -65°C to 150°C. Most substitute parts operate from -55°C to 150°C, providing a 10°C reduction in the lower temperature limit. BC848AW-7-F (Diodes Incorporated) maintains the full -65°C to 150°C range. For applications operating below -55°C, BC848AW-7-F or the main part BC848BW-TP should be selected. For applications within the -55°C to 150°C range, all substitute parts are suitable.

Q: How does power dissipation rating affect substitution?

A: BC848BW-TP is rated for 150 mW maximum power dissipation. Most substitute parts are rated for 200 mW, providing 33% additional thermal margin. Higher power rating does not degrade performance in applications designed for 150 mW operation; it simply provides additional safety margin for thermal management. In applications approaching the 150 mW limit, substitutes with 200 mW rating offer improved reliability and reduced junction temperature.

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