BC848C-TP Equivalent & Substitute Parts

Part Overview

The BC848C-TP is an NPN bipolar junction transistor manufactured by Micro Commercial Co, designed for general-purpose switching and amplification applications in surface mount configurations. This transistor operates at 30 V collector-emitter breakdown voltage with a maximum collector current of 100 mA and transition frequency of 100 MHz. The part is active in production status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1), making it suitable for industrial and commercial applications requiring reliable small-signal transistor performance.

Equivalent and substitute parts are identified based on matching or exceeding the electrical and mechanical specifications of the BC848C-TP, ensuring functional compatibility in circuit designs while accounting for manufacturing variations and alternative sourcing options.

Key Parameters

Parameter	BC848C-TP Value	Unit
Transistor Type	NPN	—
Collector Current (Ic) Maximum	100	mA
Collector-Emitter Breakdown Voltage (Vceo)	30	V
Vce Saturation @ Ib, Ic	500 mV @ 5 mA, 100 mA	—
Collector Cutoff Current (Icbo)	100	nA
DC Current Gain (hFE) @ Ic, Vce	420 @ 2 mA, 5 V	—
Power Dissipation Maximum	225	mW
Transition Frequency (fT)	100	MHz
Operating Temperature Range	-55 to 150	°C
Package Type	SOT-23-3 (TO-236-3, SC-59)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the BC848C-TP are classified into three categories based on electrical and mechanical parameter alignment:

Parametric Equivalents maintain identical electrical specifications across all critical parameters: 100 mA collector current, 30 V breakdown voltage, 420 minimum hFE at specified conditions, 100 MHz transition frequency, and SOT-23-3 package compatibility. These parts differ only in manufacturer, packaging format (tape & reel variants), or automotive-grade qualifications.

Direct Manufacturer Alternatives are functionally compatible parts that meet or exceed the BC848C-TP specifications while introducing minor parameter enhancements. These include increased power dissipation (300 mW versus 225 mW), higher transition frequencies (300 MHz versus 100 MHz), or improved collector cutoff current specifications (15 nA versus 100 nA). All maintain the 30 V breakdown voltage, 100 mA collector current, and SOT-23-3 package format.

Similar Parts share the same transistor type, package, and primary voltage/current ratings but exhibit variations in secondary parameters such as DC current gain (hFE), saturation voltage, or power dissipation. These parts are suitable for applications where the BC848C-TP specifications represent design margins rather than critical requirements.

Key Parameters for Substitution Determination:

Collector-Emitter Breakdown Voltage (Vceo): Minimum 30 V
Maximum Collector Current (Ic): Minimum 100 mA
DC Current Gain (hFE): Minimum 420 @ 2 mA, 5 V
Package Type: SOT-23-3 (TO-236-3, SC-59)
Mounting Type: Surface Mount
Operating Temperature Range: -55°C to 150°C minimum

Parameter Comparison

Part Number	Manufacturer	Ic (Max) mA	Vceo (Max) V	hFE @ 2mA, 5V	Power (Max) mW	fT MHz	Vce Sat @ 5mA, 100mA mV	Package	Qualification
BC848C-TP	Micro Commercial Co	100	30	420	225	100	500	SOT-23-3	Standard
BC848CHE3-TP	Micro Commercial Co	100	30	420	225	100	500	SOT-23-3	AEC-Q101
BC849C-TP	Micro Commercial Co	100	30	420	225	100	500	SOT-23-3	Standard
BC848C-7-F	Diodes Incorporated	100	30	420	300	300	600	SOT-23-3	Standard
BC848CLT1G	onsemi	100	30	420	300	100	600	SOT-23-3	Standard
BC849C,215	Nexperia USA Inc.	100	30	420	250	100	600	SOT-23-3	AEC-Q101
BC849CLT1G	onsemi	100	30	420	300	100	600	SOT-23-3	Standard
BCW33LT1G	onsemi	100	32	420	300	—	250	SOT-23-3	Standard
2SD2657KT146	Rohm Semiconductor	1500	30	270	200	330	350	SOT-23-3	Standard
BC848A RFG	Taiwan Semiconductor Corporation	100	30	110	200	100	500	SOT-23-3	Standard
BC848ALT1G	onsemi	100	30	110	300	100	600	SOT-23-3	Standard

Engineering Selection Recommendations

Parametric Equivalent Selection (BC848CHE3-TP, BC849C-TP)

The BC848CHE3-TP and BC849C-TP maintain complete electrical and mechanical equivalence to the BC848C-TP. The BC848CHE3-TP adds AEC-Q101 automotive qualification, suitable for applications requiring automotive-grade reliability. Selection between these parametric equivalents depends on sourcing availability and packaging format requirements (tape & reel variants). All three parts are active in production status with RoHS3 compliance and MSL 1 rating.

Enhanced Performance Alternatives (BC848C-7-F, BC848CLT1G, BC849CLT1G)

These parts provide increased power dissipation (300 mW) and improved collector cutoff current specifications (15 nA) compared to the BC848C-TP (225 mW, 100 nA). The BC848C-7-F from Diodes Incorporated additionally offers 300 MHz transition frequency versus 100 MHz. These alternatives are suitable for applications where thermal margin or switching speed improvements provide design benefits. All maintain 30 V breakdown voltage, 100 mA collector current, and SOT-23-3 package compatibility.

Automotive-Grade Option (BC849C,215)

The BC849C,215 from Nexperia USA Inc. combines parametric equivalence with AEC-Q101 automotive qualification and 250 mW power dissipation. This part is appropriate for automotive and industrial applications requiring certified reliability standards.

Higher Voltage Alternative (BCW33LT1G)

The BCW33LT1G provides 32 V collector-emitter breakdown voltage, exceeding the BC848C-TP specification of 30 V. This part is suitable for applications requiring additional voltage margin. The reduced saturation voltage (250 mV @ 500 µA, 10 mA) indicates different operating characteristics and should be evaluated for specific circuit requirements.

Higher Current Option (2SD2657KT146)

The 2SD2657KT146 from Rohm Semiconductor supports 1.5 A collector current, significantly exceeding the BC848C-TP 100 mA rating. This part is suitable only for applications requiring substantially higher current handling. The reduced DC current gain (270 minimum versus 420) and different saturation voltage characteristics require circuit re-evaluation.

Lower Gain Variants (BC848A RFG, BC848ALT1G)

The BC848A RFG and BC848ALT1G exhibit reduced DC current gain (110 minimum versus 420 minimum). These parts are suitable for applications where lower gain is acceptable or beneficial for circuit stability. The BC848ALT1G provides enhanced power dissipation (300 mW) and improved collector cutoff current (15 nA).

Frequently Asked Questions (FAQ)

Q: Can BC849C-TP be used as a direct replacement for BC848C-TP?

A: Yes. The BC849C-TP maintains identical electrical specifications: 100 mA collector current, 30 V breakdown voltage, 420 minimum hFE at 2 mA and 5 V, 100 MHz transition frequency, and SOT-23-3 package. Both parts are manufactured by Micro Commercial Co and are active in production status with RoHS3 compliance.

Q: What is the difference between BC848C-TP and BC848CLT1G?

A: The BC848CLT1G from onsemi provides enhanced specifications: 300 mW power dissipation versus 225 mW, 600 mV saturation voltage versus 500 mV, and improved collector cutoff current of 15 nA versus 100 nA. Electrical performance parameters (Ic, Vceo, hFE, fT) remain equivalent. The BC848CLT1G is supplied in cut tape format versus tape & reel for the BC848C-TP.

Q: Is the BCW33LT1G compatible with BC848C-TP applications?

A: The BCW33LT1G is compatible for applications where 32 V breakdown voltage is acceptable. The part maintains 100 mA collector current, 420 minimum hFE, and SOT-23-3 package compatibility. However, the saturation voltage specification differs (250 mV @ 500 µA, 10 mA versus 500 mV @ 5 mA, 100 mA), requiring circuit evaluation for switching applications sensitive to saturation characteristics.

Q: Can 2SD2657KT146 replace BC848C-TP?

A: The 2SD2657KT146 is not a direct replacement. While both parts share 30 V breakdown voltage and SOT-23-3 package, the 2SD2657KT146 supports 1.5 A collector current (versus 100 mA) and exhibits reduced DC current gain (270 minimum versus 420 minimum). This part is suitable only for applications requiring higher current handling and where reduced gain is acceptable.

Q: What is the significance of AEC-Q101 qualification in BC848CHE3-TP and BC849C,215?

A: AEC-Q101 qualification indicates automotive-grade reliability testing and quality standards. Parts bearing this qualification are suitable for automotive applications and environments requiring certified reliability. Standard-grade parts (BC848C-TP, BC848CLT1G) are suitable for industrial and commercial applications without automotive requirements.

Q: Are all substitute parts available in the same packaging format?

A: No. The BC848C-TP is supplied in tape & reel (TR) format. Substitute parts vary: BC848C-7-F and BC848CLT1G are supplied in cut tape (CT) & Digi-Reel format, while BC848CHE3-TP, BC849C-TP, BC849C,215, BC849CLT1G, and BCW33LT1G are supplied in tape & reel format. Packaging format selection depends on assembly equipment and procurement requirements.

Q: What parameters determine substitution compatibility?

A: Primary substitution parameters are collector-emitter breakdown voltage (minimum 30 V), maximum collector current (minimum 100 mA), DC current gain (minimum 420 @ 2 mA, 5 V), and SOT-23-3 package type. Secondary parameters including power dissipation, transition frequency, and saturation voltage may vary while maintaining functional compatibility. Operating temperature range (-55°C to 150°C minimum) and RoHS3 compliance are standard across all listed parts.

Q: Can BC848A RFG be used in high-frequency switching applications?

A: The BC848A RFG maintains 100 MHz transition frequency equivalent to BC848C-TP. However, the reduced DC current gain (110 minimum versus 420 minimum) affects base drive requirements and switching characteristics. This part is suitable for applications where lower gain is acceptable or where circuit design accommodates reduced hFE through increased base current.

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