SS8550-H Equivalent & Substitute Parts Engineering Reference

Part Overview

The SS8550-H from EVVO Semi is a PNP bipolar junction transistor (BJT) designed for general-purpose amplification and switching applications. This component is supplied in a SOT-23 surface-mount package, with a collector-emitter breakdown voltage of 25V, a maximum collector current of 1.5A, 200mW power dissipation, and a transition frequency of 100MHz. The device is RoHS3 compliant and in active production status.

Identifying equivalent or substitute models is essential in cases of supply disruptions, inventory management, or multi-sourcing for manufacturing flexibility. Alternate models are required to match all critical electrical, mechanical, and regulatory parameters.

Substiute Parts

SS8550-H

EVVO SemiIn Stock: 146396SS8550-H Datasheet

Current PartRFQ

SS8550

EVVO SemiIn Stock: 473114SS8550 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is determined strictly by matching all primary electrical and mechanical parameters given for the SS8550-H category, including:

• PNP transistor type
• Collector-emitter breakdown voltage (25V)
• Collector current rating (1.5A)
• Saturation voltage, collector cutoff current, DC current gain, frequency rating
• Maximum power dissipation
• Operating temperature range
• Surface-mount package compatibility (TO-236-3, SC-59, SOT-23-3)
• Compliance and regulatory status such as RoHS and MSL level

Parameter Comparison

Engineering Selection Recommendations

Selection between SS8550-H and SS8550 may be made based on active product status, equivalent RoHS3 compliance, and MSL 1 (Unlimited) classification, in accordance with regulatory and compliance requirements documented for both part numbers.

Frequently Asked Questions (FAQ)

Q: What are the key parameters to verify for substituting SS8550-H with SS8550?
A: The key parameters are PNP transistor type, collector-emitter breakdown voltage of 25V, maximum collector current of 1.5A, Vce(sat) of 500mV @ 80mA, 800mA, cutoff current of 100nA, DC current gain of 120 @ 100mA, 1V, power rating of 200mW, transition frequency of 100MHz, identical operating temperature range, surface-mount package compatibility, RoHS status, and MSL rating.

Q: Are SS8550-H and SS8550 mechanically interchangeable?
A: Both SS8550-H and SS8550 use the SOT-23 form factor with matching TO-236-3, SC-59, SOT-23-3 package codes, ensuring mechanical interchangeability and footprint compatibility.

Q: Is there any compliance difference between SS8550-H and SS8550?
A: Both SS8550-H and SS8550 are classified as RoHS3 Compliant, MSL 1 (Unlimited), with ECCN EAR99 and HTSUS 8541.21.0095, ensuring equal regulatory status for engineering selection.

Q: How should inventory levels impact substitute selection for SS8550-H?
A: Inventory is a permitted selection parameter; if both SS8550-H and SS8550 are active and compliant, selection may prioritize availability for manufacturing flow without impacting device equivalence.

Q: Does the surface mount classification allow for automated assembly line compatibility?
A: Surface-mount classification with SOT-23 and related packages is maintained across SS8550-H and SS8550, facilitating seamless compatibility with automated PCB assembly processes.