BC848CW Equivalent & Substitute Parts Reference

Part Overview

The BC848CW from Taiwan Semiconductor Corporation is an NPN bipolar junction transistor (BJT) targeted for applications in switching and amplification. It features a maximum collector-emitter voltage of 30 V, collector current up to 100 mA, and is housed in the SOT-323 (SC-70) surface-mount package. The device is actively supplied and RoHS/REACH compliant. Engineering selection of equivalent or substitute transistors is required where matching electrical and mechanical parameters (such as voltage, current, gain, and package) are necessary for form, fit, and function compatibility in designs or for supply chain assurance.

Key Parameters

Parameter	BC848CW
Transistor Type	NPN
Voltage - Collector Emitter Breakdown (Max)	30 V
Current - Collector (Ic) (Max)	100 mA
Vce Saturation (Max) @ Ib, Ic	600mV @ 5mA, 100mA
Current - Collector Cutoff (Max)	15nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce	420 @ 2mA, 5V
Power - Max	200 mW
Frequency - Transition	100MHz
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	SC-70, SOT-323
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected
ECCN	EAR99

Substitute Part Grouping Explanation

Substitute parts for the BC848CW are strictly selected by matching or exceeding the key electrical and mechanical parameters relevant for transistors in this product category. Parameters used for substitution include:

Transistor type (NPN)
Collector-emitter voltage rating
Collector current rating
Saturation voltage characteristics
Cutoff current
Minimum DC current gain
Maximum power rating
Transition frequency
Operating temperature range
Mounting type and package/case
RoHS and REACH compliance
Regulatory certifications (ECCN, HTSUS)

Only parts that match these criteria, as supplied in the provided data, are included below.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Transistor Type	Voltage - Collector Emitter Breakdown (Max)	Current - Collector (Ic) (Max)	Vce Saturation (Max) @ Ib, Ic	Current - Collector Cutoff (Max)	DC Current Gain (hFE) (Min) @ Ic, Vce	Power - Max	Frequency - Transition	Operating Temperature	Mounting Type	Package / Case	RoHS Status	REACH Status	ECCN
BC848CW	Taiwan Semiconductor Corporation	NPN	30 V	100 mA	600mV @ 5mA, 100mA	15nA (ICBO)	420 @ 2mA, 5V	200 mW	100MHz	-55°C ~ 150°C (TJ)	Surface Mount	SC-70, SOT-323	ROHS3 Compliant	REACH Unaffected	EAR99
BC848CWT1G	Fairchild Semiconductor	NPN	30 V	100 mA	600mV @ 5mA, 100mA	15nA (ICBO)	420 @ 2mA, 5V	150 mW	100MHz	-55°C ~ 150°C (TJ)	Surface Mount	SC-70, SOT-323	-	-	EAR99
BC849CW,115	NXP USA Inc.	NPN	30 V	100 mA	600mV @ 5mA, 100mA	15nA (ICBO)	420 @ 2mA, 5V	200 mW	100MHz	150°C (TJ)	Surface Mount	SC-70, SOT-323	-	-	EAR99
BC849CW,135	NXP USA Inc.	NPN	30 V	100 mA	600mV @ 5mA, 100mA	15nA (ICBO)	420 @ 2mA, 5V	200 mW	100MHz	150°C (TJ)	Surface Mount	SC-70, SOT-323	-	-	EAR99
BC849BW,135	Nexperia USA Inc.	NPN	30 V	100 mA	600mV @ 5mA, 100mA	15nA (ICBO)	200 @ 2mA, 5V	200 mW	100MHz	150°C (TJ)	Surface Mount	SC-70, SOT-323	ROHS3 Compliant	REACH Unaffected	EAR99
BC846CW	Taiwan Semiconductor Corporation	NPN	65 V	100 mA	600mV @ 5mA, 100mA	15nA (ICBO)	420 @ 2mA, 5V	200 mW	100MHz	-55°C ~ 150°C (TJ)	Surface Mount	SC-70, SOT-323	ROHS3 Compliant	REACH Unaffected	EAR99

Engineering Selection Recommendations

Selection of substitute parts for the BC848CW should be based on active product status and compliance with environmental directives such as RoHS and REACH. All listed substitutes are marked as "Active" and, where specified, are compliant with relevant directives and regulatory classifications (ECCN EAR99). For applications where certification (e.g., automotive grade or AEC-Q101) is specified, only those substitutes listing these qualifications in the provided data should be selected.

Frequently Asked Questions (FAQ)

Q1: What are the critical parameters for substituting BC848CW in a design?
A1: Substitute must match the transistor type (NPN), maximum collector-emitter voltage, collector current rating, saturation voltage, cutoff current, minimum DC current gain, power rating, transition frequency, operating temperature, mounting type, package, and compliance (RoHS/REACH).

Q2: Are package and mounting type compatibility mandatory for substitution?
A2: The substitute must use the same surface mount SC-70 (SOT-323) package to ensure mechanical compatibility.

Q3: Can substitute parts with higher voltage ratings (e.g., BC846CW) be used?
A3: Substitute parts with higher collector-emitter voltage ratings are included as parametric equivalents if all other parameters match the BC848CW.

Q4: Does the minimum DC current gain value affect substitution?
A4: Yes, the minimum DC current gain (hFE) should meet or exceed the stated value for the specific application requirements. Values differ among substitutes and must be verified against required performance.

Q5: Are automotive-grade substitutes available in the list?
A5: Automotive-grade and AEC-Q101 qualified parts are indicated in the provided data for some substitutes (e.g., BC849BW,135, BC849CW,115, BC849CW,135).

Q6: Are there environmental compliance differences among substitutes?
A6: All substitutes specify RoHS and REACH compliance where provided. Selection should align with compliance requirements for the application.

Q7: Is electrical performance affected by packaging differences (bulk vs. tape & reel)?
A7: Packaging affects supply chain and assembly processes but not electrical or mechanical compatibility, as long as the package/case and mounting type match.

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