MMSS8050W-L-TP Equivalent & Substitute Parts

Part Overview

The MMSS8050W-L-TP is an NPN bipolar junction transistor (BJT) manufactured by Micro Commercial Co, designed for interface applications in surface mount configurations. This transistor operates at a maximum collector current of 1.5 A and collector-emitter breakdown voltage of 25 V, with a transition frequency of 100 MHz and maximum power dissipation of 200 mW. The device is packaged in SOT-323 (SC-70) surface mount form factor and is currently in active product status with 685 pieces in stock.

Substitute parts are necessary when the primary part becomes unavailable, when supply chain constraints require alternative sourcing, or when design flexibility permits operation within the electrical and mechanical parameters of equivalent devices. The substitute parts listed maintain compatibility through identical packaging, matching frequency response, equivalent power ratings, and overlapping voltage and current specifications.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Current - Collector (Ic) (Max)	1.5	A
Voltage - Collector Emitter Breakdown (Max)	25	V
Power - Max	200	mW
Frequency - Transition	100	MHz
Operating Temperature Range	-55 to 150	°C (TJ)
Package / Case	SOT-323 (SC-70)	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution eligibility for the MMSS8050W-L-TP is determined by the following criteria:

Mandatory Matching Parameters:

Transistor Type: NPN
Package / Case: SOT-323 (SC-70)
Mounting Type: Surface Mount
Frequency - Transition: 100 MHz
Power - Max: 200 mW
Operating Temperature Range: -55°C to 150°C

Allowable Parameter Variations:

Voltage - Collector Emitter Breakdown: Substitute parts rated at 30 V exceed the 25 V requirement and remain compatible for applications operating within 25 V limits
Current - Collector (Ic) (Max): Substitute parts rated at 100 mA are suitable for circuits designed to operate at or below 100 mA; applications requiring the full 1.5 A capability of the MMSS8050W-L-TP cannot use these substitutes
DC Current Gain (hFE): Variations in hFE across the substitute parts (ranging from 110 to 420 @ 2mA, 5V) reflect different gain grades within the BC848 and BC849 families and do not prevent substitution in applications where gain is not a critical design parameter

All substitute parts are manufactured by Taiwan Semiconductor Corporation, packaged in Tape & Reel format, and maintain active product status with substantial inventory availability.

Parameter Comparison

Parameter	MMSS8050W-L-TP	BC848AW RFG	BC848BW RFG	BC848CW RFG	BC849AW RFG	BC849BW RFG	BC849CW RFG
Transistor Type	NPN	NPN	NPN	NPN	NPN	NPN	NPN
Current - Collector (Ic) (Max)	1.5 A	100 mA	100 mA	100 mA	100 mA	100 mA	100 mA
Voltage - Collector Emitter Breakdown (Max)	25 V	30 V	30 V	30 V	30 V	30 V	30 V
Power - Max	200 mW	200 mW	200 mW	200 mW	200 mW	200 mW	200 mW
Frequency - Transition	100 MHz	100 MHz	100 MHz	100 MHz	100 MHz	100 MHz	100 MHz
Operating Temperature Range	-55 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 150°C
Package / Case	SOT-323	SOT-323	SOT-323	SOT-323	SOT-323	SOT-323	SOT-323
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
DC Current Gain (hFE) (Min)	120 @ 100mA, 1V	110 @ 2mA, 5V	200 @ 2mA, 5V	420 @ 2mA, 5V	110 @ 2mA, 5V	200 @ 2mA, 5V	420 @ 2mA, 5V
Vce Saturation (Max)	500mV @ 80mA, 800mA	600mV @ 5mA, 100mA	600mV @ 5mA, 100mA	600mV @ 5mA, 100mA	600mV @ 5mA, 100mA	600mV @ 5mA, 100mA	600mV @ 5mA, 100mA
Current - Collector Cutoff (Max)	100 nA	100 nA	100 nA	100 nA	100 nA	100 nA	100 nA

Engineering Selection Recommendations

Substitution Applicability:

The BC848 and BC849 series transistors are suitable substitutes for the MMSS8050W-L-TP in applications where collector current requirements do not exceed 100 mA. These devices maintain electrical compatibility through identical transition frequency (100 MHz), power dissipation rating (200 mW), operating temperature range (-55°C to 150°C), and package form factor (SOT-323 surface mount).

Compliance and Certification Status:

All substitute parts carry ROHS3 compliance certification and maintain REACH Unaffected status, matching the regulatory framework of the primary part. The substitute parts are classified under identical HTSUS code (8541.21.0075) and ECCN designation (EAR99). Moisture Sensitivity Level (MSL) rating of 1 (Unlimited) for all substitute parts indicates no moisture-related handling restrictions during storage and assembly.

Inventory and Supply Considerations:

Substitute parts demonstrate substantial inventory availability, with each variant maintaining stock levels exceeding 18,700 pieces. This inventory depth supports consistent supply chain access and reduces lead time risk compared to the primary part's 685-piece inventory level.

Current Rating Limitation:

Applications requiring sustained collector currents above 100 mA cannot use the listed substitute parts. The MMSS8050W-L-TP's 1.5 A maximum collector current capability is not replicated in the BC848 or BC849 families. In such cases, alternative high-current NPN transistors in SOT-323 packaging must be evaluated.

Frequently Asked Questions (FAQ)

Q: Can BC848AW RFG, BC848BW RFG, and BC848CW RFG be used interchangeably with each other?

A: Yes. These three variants differ only in DC Current Gain (hFE) specification: BC848AW RFG provides 110 minimum, BC848BW RFG provides 200 minimum, and BC848CW RFG provides 420 minimum. All other electrical and mechanical parameters are identical. Selection between variants depends on circuit gain requirements.

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

A: The BC848 and BC849 series are functionally equivalent in all provided parameters. Both families offer identical voltage, current, frequency, power, temperature, and package specifications. The designation difference reflects manufacturer product line organization but does not affect substitution eligibility.

Q: Why do the substitute parts have a maximum collector current of 100 mA instead of 1.5 A?

A: The BC848 and BC849 transistors are designed for lower-current applications and are rated at 100 mA maximum collector current. These parts are suitable only for circuits operating at or below 100 mA. Applications requiring the full 1.5 A capability of the MMSS8050W-L-TP require alternative component selection.

Q: Are the substitute parts available in bulk packaging like the MMSS8050W-L-TP?

A: The substitute parts are supplied in Tape & Reel (TR) packaging format, whereas the MMSS8050W-L-TP is available in bulk packaging. Tape & Reel format is standard for surface mount production environments and is compatible with automated assembly equipment.

Q: Do the substitute parts meet the same regulatory and compliance standards?

A: Yes. All substitute parts carry ROHS3 compliance, REACH Unaffected status, and identical HTSUS and ECCN classifications. Moisture Sensitivity Level (MSL) rating of 1 (Unlimited) matches the primary part's handling requirements.

Q: Can I use a BC849CW RFG (420 hFE minimum) in place of a BC848AW RFG (110 hFE minimum)?

A: Yes, from a substitution standpoint. However, the higher gain of the BC849CW RFG may affect circuit behavior in applications where gain is a critical design parameter. Circuit analysis is necessary to confirm that higher gain does not introduce unintended operational changes.

Q: What is the operating temperature range for all substitute parts?

A: All substitute parts operate across the identical temperature range of -55°C to 150°C (junction temperature), matching the MMSS8050W-L-TP specification.

Q: Are there any moisture handling differences between the primary part and substitutes?

A: No. All parts carry Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no moisture-related restrictions during storage, handling, or assembly processes.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message