BC857CS_R1_00001 Equivalent & Substitute Parts

Part Overview

The BC857CS_R1_00001 is a dual PNP general-purpose bipolar junction transistor (BJT) manufactured by Panjit International Inc. in a 6-TSSOP surface mount package. This component is classified as an active product and is widely used in switching and amplification applications requiring moderate frequency response and power dissipation. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when inventory constraints necessitate component alternatives that maintain electrical and mechanical compatibility.

Substiute Parts

BC857CS_R1_00001

Panjit International Inc.In Stock: 2762BC857CS_R1_00001 Datasheet

Current PartRFQ

BCM857BS,115

Nexperia USA Inc.In Stock: 19777BCM857BS,115 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BC857CS_R1_00001 with the BCM857BS,115 is based on the following electrical and mechanical compatibility criteria:

Matching Parameters:

• Transistor configuration: Both are dual PNP devices
• Maximum collector current: 100mA (identical)
• Maximum collector-emitter breakdown voltage: 45V (identical)
• Collector cutoff current: 15nA (identical)
• Package type: 6-TSSOP surface mount (identical)
• RoHS3 compliance: Both compliant
• MSL rating: Both rated MSL 1 (Unlimited)
• Operating temperature range: Both support -55°C to 150°C

Allowable Parameter Variations:

• Vce saturation: BC857CS_R1_00001 specifies 650mV maximum; BCM857BS,115 specifies 400mV maximum. The substitute exhibits lower saturation voltage, which is acceptable for general-purpose applications.
• DC current gain (hFE): BC857CS_R1_00001 specifies 420 minimum; BCM857BS,115 specifies 200 minimum. The substitute has lower gain but remains suitable for switching applications.
• Frequency - Transition: BC857CS_R1_00001 specifies 200MHz; BCM857BS,115 specifies 175MHz. The substitute has lower transition frequency but remains within acceptable range for general-purpose switching.
• Power dissipation: BC857CS_R1_00001 specifies 225mW; BCM857BS,115 specifies 300mW. The substitute has higher power rating, providing additional thermal margin.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: BC857CS_R1_00001

The BC857CS_R1_00001 is an active product with full RoHS3 compliance and unlimited moisture sensitivity rating. This part is suitable for applications requiring the specified electrical characteristics and is available in high inventory volume (2701 pieces).

Substitute Part: BCM857BS,115

The BCM857BS,115 is an active product manufactured by Nexperia USA Inc. with identical RoHS3 compliance and MSL rating. This substitute maintains all critical electrical parameters within acceptable tolerances for general-purpose PNP transistor applications. The BCM857BS,115 is available in significantly higher inventory volume (19,720 pieces), making it a viable alternative when primary sourcing is constrained.

Both parts are classified as active products with equivalent regulatory compliance (ROHS3, REACH Unaffected, EAR99 ECCN classification). Selection between these parts should be based on availability, lead time, and application-specific requirements for saturation voltage, current gain, or transition frequency performance.

Frequently Asked Questions (FAQ)

Q: Can the BCM857BS,115 be used as a direct replacement for the BC857CS_R1_00001?

A: Yes. Both parts are dual PNP transistors in 6-TSSOP surface mount packages with identical maximum collector current (100mA), breakdown voltage (45V), and operating temperature range (-55°C to 150°C). Electrical parameter variations (saturation voltage, current gain, transition frequency) are within acceptable tolerances for general-purpose switching and amplification applications.

Q: What are the key differences between these two parts?

A: The BCM857BS,115 features lower Vce saturation (400mV vs. 650mV), lower DC current gain minimum (200 vs. 420), lower transition frequency (175MHz vs. 200MHz), and higher maximum power dissipation (300mW vs. 225mW). These differences make the BCM857BS,115 suitable for applications where lower saturation voltage is beneficial and where transition frequency requirements do not exceed 175MHz.

Q: Are the packages identical?

A: Yes. Both parts use the 6-TSSOP surface mount package, also designated as SC-88 or SOT-363. Pin configuration and PCB footprint are identical, allowing direct board-level substitution without layout modifications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the BC857CS_R1_00001 and BCM857BS,115 are RoHS3 compliant, REACH unaffected, and classified under EAR99 ECCN. Both carry MSL 1 (Unlimited) moisture sensitivity ratings.

Q: Which part should be selected for high-frequency applications?

A: The BC857CS_R1_00001 is specified for 200MHz transition frequency, compared to 175MHz for the BCM857BS,115. For applications requiring maximum frequency response, the BC857CS_R1_00001 is the appropriate selection.

Q: Is the BCM857BS,115 a matched pair device?

A: Yes. The BCM857BS,115 is specified as a matched pair dual PNP transistor, which provides improved parameter matching between the two transistors within the package. This characteristic may be advantageous in differential or balanced circuit configurations.