SS8050 Equivalent & Substitute Parts

Part Overview

The SS8050 is an NPN bipolar junction transistor (BJT) manufactured by UMW, designed for general-purpose switching and amplification applications. This Surface Mount device is rated for 25V collector-emitter breakdown voltage, 1.5A maximum collector current, and 300mW power dissipation. The transistor operates at frequencies up to 100MHz and is housed in a SOT-23 package. The part is currently in active production status with extensive inventory availability. Substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support alternative packaging or qualification requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

SS8050

UMWIn Stock: 782380SS8050 Datasheet

Current PartRFQ

MMSS8050HE3-L-TP

Micro Commercial CoIn Stock: 4996MMSS8050HE3-L-TP Datasheet

Parametric EquivalentRFQ

SS8050

EVVO SemiIn Stock: 782397SS8050 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SS8050 are qualified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Electrical Parameters (Must Match):

• Transistor Type: NPN
• Voltage - Collector Emitter Breakdown (Max): 25V
• Current - Collector (Ic) (Max): 1.5A
• Power - Max: 300mW
• Frequency - Transition: 100MHz
• Vce Saturation (Max) @ Ib, Ic: 500mV @ 80mA, 800mA
• DC Current Gain (hFE) (Min) @ Ic, Vce: 120 @ 100mA, 1V
• Current - Collector Cutoff (Max): 100nA

Mechanical Parameters (Must Match):

• Package / Case: TO-236-3, SC-59, SOT-23-3
• Mounting Type: Surface Mount
• Supplier Device Package: SOT-23

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes. Variations in packaging format (Cut Tape vs. Tape & Reel), operating temperature range, and automotive qualification do not affect electrical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

All three parts listed are active production devices with ROHS3 compliance and MSL Level 1 rating, confirming suitability for standard and lead-free manufacturing environments.

SS8050 (UMW): The primary reference part with extensive inventory (782,300 pcs). Suitable for general commercial applications requiring standard operating temperature range (0°C to 150°C).

MMSS8050HE3-L-TP (Micro Commercial Co): Parametric equivalent with extended operating temperature range (-55°C to 150°C) and AEC-Q101 automotive qualification. This part is selected when automotive-grade reliability or extended low-temperature operation is required. Packaging is Tape & Reel format, suitable for high-volume automated assembly. Inventory availability is lower (4,899 pcs).

SS8050 (EVVO Semi): Parametric equivalent with identical electrical specifications and standard operating temperature range. Available in Cut Tape and Digi-Reel packaging formats. Inventory is equivalent to the UMW part (782,300 pcs). Selection is based on supply chain availability or preferred supplier relationship.

All three parts are direct substitutes for applications operating within the 0°C to 150°C temperature range and standard commercial environments. The MMSS8050HE3-L-TP variant is the only option for applications requiring extended temperature operation or automotive qualification.

Frequently Asked Questions (FAQ)

Q: Can MMSS8050HE3-L-TP replace SS8050 in a standard commercial application?

A: Yes. The MMSS8050HE3-L-TP is a parametric equivalent with identical electrical characteristics. The extended temperature range (-55°C to 150°C) and automotive qualification are additional features that do not prevent use in standard commercial designs. The part is electrically interchangeable.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) packaging provides individual component strips suitable for manual handling and small-volume assembly. Tape & Reel (TR) packaging provides continuous reels optimized for automated pick-and-place equipment in high-volume production. Both formats contain identical components; packaging selection depends on assembly process requirements.

Q: Are all three parts suitable for lead-free soldering?

A: Yes. All three parts are ROHS3 compliant and MSL Level 1 rated, confirming compatibility with lead-free soldering processes and unlimited shelf life under standard storage conditions.

Q: Does the SS8050 from EVVO Semi have different electrical performance than the UMW version?

A: No. Both SS8050 parts from UMW and EVVO Semi have identical electrical specifications, including voltage rating, current rating, power dissipation, frequency response, and gain characteristics. Selection between them is based on supply availability or supplier preference.

Q: Which substitute part should be selected for automotive applications?

A: The MMSS8050HE3-L-TP is qualified to AEC-Q101 automotive standards and is the appropriate selection for automotive applications. This part includes extended temperature operation capability (-55°C to 150°C) required for automotive environments.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. All three parts use identical SOT-23 package geometry (TO-236-3, SC-59, SOT-23-3) and have identical pin configurations. PCB footprints and solder pad layouts are compatible across all three parts.

Q: What is the significance of the 100nA collector cutoff current specification?

A: The 100nA maximum collector cutoff current (Icbo) specifies the maximum leakage current when the transistor is in the off state. This parameter is identical across all three parts and ensures consistent switching performance and low standby power consumption.

Q: Are there any differences in DC current gain between the three parts?

A: No. All three parts specify a minimum DC current gain (hFE) of 120 at 100mA collector current and 1V collector-emitter voltage. This parameter is identical and ensures consistent amplification characteristics.