S2-STW8C2SB(H) LED 3030 White SMD Equivalent & Substitute Parts

Part Overview

The S2-STW8C2SB(H) is a 3030 metric white surface mount LED manufactured by Seoul Semiconductor Inc. This component is classified as obsolete product status. Due to its obsolete classification, identifying active equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and ongoing support of existing applications.

Substiute Parts

S2-STW8C2SB(H)

Seoul Semiconductor Inc.In Stock: 1198S2-STW8C2SB(H) Datasheet

Current PartRFQ

STW8C2SB

Seoul Semiconductor Inc.In Stock: 178954STW8C2SB Datasheet

Parametric EquivalentRFQ

STW8C2SB-NZ

Seoul Semiconductor Inc.In Stock: 987STW8C2SB-NZ Datasheet

Parametric EquivalentRFQ

STW8C2SB-NZ(DISTY)

Seoul Semiconductor Inc.In Stock: 1117STW8C2SB-NZ(DISTY) Datasheet

Parametric EquivalentRFQ

GW PSLR31.EM-LR-XX33-1-150-R18

ams-OSRAM USA INC.In Stock: 764GW PSLR31.EM-LR-XX33-1-150-R18 Datasheet

Parametric EquivalentRFQ

GW PSLR31.EM-LR-XX35-1-150-R18

ams-OSRAM USA INC.In Stock: 747GW PSLR31.EM-LR-XX35-1-150-R18 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the S2-STW8C2SB(H) are identified based on the following critical parameters that determine functional compatibility:

Primary Matching Criteria:

• Package / Case: 1212 (3030 Metric)
• Color: White
• Viewing Angle: 120°
• Forward Voltage (Vf) Typical: 6.1V to 6.2V
• Test Current: 100mA to 150mA
• Maximum Current: 200mA
• Mounting Type: Surface Mount
• Size / Dimension: 3.00mm x 3.00mm
• CRI (Color Rendering Index): 80
• RoHS Status: ROHS3 Compliant

Substitute parts are grouped into two categories:

Category 1: Direct Seoul Semiconductor Equivalents Parts STW8C2SB, STW8C2SB-NZ, and STW8C2SB-NZ(DISTY) are parametric equivalents from the same manufacturer with identical electrical and mechanical specifications. These parts share the same base product number STW8C2 and maintain full compatibility with the obsolete S2-STW8C2SB(H).

Category 2: Cross-Manufacturer Parametric Equivalents Parts GW PSLR31.EM-LR-XX33-1-150-R18 and GW PSLR31.EM-LR-XX35-1-150-R18 from ams-OSRAM USA INC. are parametric equivalents that meet the same package, color, viewing angle, and electrical specifications within acceptable tolerances.

Parameter Comparison

Engineering Selection Recommendations

Seoul Semiconductor Direct Equivalents (STW8C2SB, STW8C2SB-NZ, STW8C2SB-NZ(DISTY))

These parts are recommended as primary substitutes for the obsolete S2-STW8C2SB(H). All three variants maintain identical electrical and mechanical specifications with active product status. The STW8C2SB offers the highest inventory availability (178,900 pcs). The thermal resistance improvement from 17°C/W to 10°C/W in these active variants provides enhanced thermal performance. All parts maintain ROHS3 compliance and are suitable for direct replacement in existing designs.

ams-OSRAM DURIS S 5 Series (GW PSLR31.EM-LR-XX33-1-150-R18, GW PSLR31.EM-LR-XX35-1-150-R18)

These cross-manufacturer alternatives are suitable substitutes when Seoul Semiconductor parts are unavailable. Both variants maintain the same package, color, viewing angle, and CRI specifications. The forward voltage differential of 0.1V (6.2V vs 6.1V) and test current increase to 150mA fall within acceptable parametric ranges for 3030 metric white LEDs. Both parts are ROHS3 compliant and carry MSL 3 moisture sensitivity rating. These parts are appropriate for applications where cross-manufacturer sourcing is acceptable.

Frequently Asked Questions (FAQ)

Q: Can STW8C2SB be used as a direct replacement for S2-STW8C2SB(H)?

A: Yes. STW8C2SB is a parametric equivalent with identical electrical specifications (6.1V forward voltage, 100mA test current, 200mA maximum current) and mechanical specifications (1212 3030 metric package, 3.00mm x 3.00mm dimensions, 120° viewing angle). The primary difference is improved thermal resistance (10°C/W vs 17°C/W) and active product status.

Q: What is the difference between STW8C2SB, STW8C2SB-NZ, and STW8C2SB-NZ(DISTY)?

A: All three variants share identical electrical and mechanical specifications and the same base product number STW8C2. The suffix designations indicate different packaging or distribution channels. For component selection purposes, they are functionally equivalent.

Q: Can ams-OSRAM DURIS S 5 parts replace the Seoul Semiconductor LED?

A: Yes, with consideration of parametric differences. The ams-OSRAM parts maintain the same package (1212 3030 metric), color (white), viewing angle (120°), and CRI (80). The forward voltage is 6.2V (0.1V higher than 6.1V) and test current is 150mA (50mA higher than 100mA). Both remain within the 200mA maximum current specification. These differences are acceptable for most applications but should be evaluated against specific circuit design requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed—STW8C2SB, STW8C2SB-NZ, STW8C2SB-NZ(DISTY), GW PSLR31.EM-LR-XX33-1-150-R18, and GW PSLR31.EM-LR-XX35-1-150-R18—are ROHS3 compliant.

Q: What is the height difference between Seoul Semiconductor and ams-OSRAM parts?

A: Seoul Semiconductor parts have a maximum seated height of 0.031" (0.80mm), while ams-OSRAM DURIS S 5 parts have a maximum seated height of 0.028" (0.70mm). This 0.003" (0.10mm) difference is negligible for most PCB assembly applications but should be verified against specific board design constraints.

Q: Which substitute part has the best thermal performance?

A: Seoul Semiconductor STW8C2SB, STW8C2SB-NZ, and STW8C2SB-NZ(DISTY) all offer superior thermal resistance at 10°C/W compared to the original S2-STW8C2SB(H) at 17°C/W and the ams-OSRAM parts at 17°C/W.

Q: What inventory levels are available for each substitute?

A: STW8C2SB has the highest availability at 178,900 pcs. STW8C2SB-NZ(DISTY) has 1,094 pcs, STW8C2SB-NZ has 947 pcs, GW PSLR31.EM-LR-XX33-1-150-R18 has 729 pcs, and GW PSLR31.EM-LR-XX35-1-150-R18 has 717 pcs.