SPMWH1221FD5GBTMSB LED Equivalent & Substitute Parts

Part Overview

The SPMWH1221FD5GBTMSB is a surface-mount LED from Samsung Semiconductor's LM282B series, designed for neutral white lighting applications at 4000K color temperature. This component operates at 6.3V forward voltage with a 150mA test current, delivering 120 lumens at 25°C in a compact 2835 metric package (1113 case size).

The part carries a "Not For New Designs" product status, indicating Samsung has discontinued active development for this model. This status necessitates identification of equivalent substitute components that maintain identical electrical and mechanical specifications for ongoing production support and field replacement applications.

Substiute Parts

SPMWH1221FD5GBTMSB

Samsung Semiconductor, Inc.In Stock: 39758SPMWH1221FD5GBTMSB Datasheet

Current PartRFQ

SPMWH1221FD5GBT0SB

Samsung Semiconductor, Inc.In Stock: 40791SPMWH1221FD5GBT0SB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPMWH1221FD5GBTMSB is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Color specification: White, Neutral
• CCT: 4000K
• Forward voltage (Vf): 6.3V typical
• Test current: 150mA
• Luminous flux @ 25°C: 120lm (115–125lm range)
• CRI: 80
• Lumens per watt efficiency: 127 lm/W

Mechanical Equivalence Criteria:

• Package type: 1113 (2835 Metric)
• Mounting: Surface Mount
• Physical dimensions: 3.50mm L × 2.80mm W
• Maximum seated height: 0.75mm
• Thermal resistance: 15°C/W

Compliance & Environmental Criteria:

• RoHS Compliant status
• Moisture Sensitivity Level: 2A (4 Weeks)
• Packaging format: Tape & Reel (TR)

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SPMWH1221FD5GBT0SB

The SPMWH1221FD5GBT0SB is a direct parametric equivalent to the SPMWH1221FD5GBTMSB. Both components are manufactured by Samsung Semiconductor and share identical electrical performance, mechanical specifications, and environmental compliance ratings.

Selection Basis:

1. Product Status Alignment: Both parts carry "Not For New Designs" status, indicating equivalent lifecycle positioning within Samsung's product portfolio.

2. Electrical Interchangeability: Forward voltage, test current, luminous flux output, efficiency (lm/W), and color characteristics are identical across both part numbers.

3. Mechanical Interchangeability: Package type (1113/2835 metric), mounting method (surface mount), physical dimensions, and thermal properties are identical, ensuring direct PCB compatibility without layout modifications.

4. Compliance Equivalence: Both parts maintain RoHS compliance and identical moisture sensitivity ratings (MSL 2A), supporting equivalent handling and storage requirements.

5. Inventory Availability: SPMWH1221FD5GBT0SB maintains comparable stock levels (40,766 pcs) to the primary part, supporting production continuity.

Application Context:

These parts are suitable for neutral white LED lighting applications requiring 4000K color temperature with 120 lumens output at standard operating current. The 120° viewing angle and 80 CRI specification support general illumination and accent lighting designs. Surface-mount packaging enables automated assembly on standard pick-and-place equipment.

Frequently Asked Questions (FAQ)

Q: Can SPMWH1221FD5GBT0SB be used as a direct replacement for SPMWH1221FD5GBTMSB in existing designs?

A: Yes. Both parts are parametric equivalents with identical electrical specifications (6.3V, 150mA, 120lm @ 25°C), mechanical dimensions (3.50 × 2.80 × 0.75mm), and package type (1113/2835 metric). No circuit modifications or PCB layout changes are required.

Q: What is the difference between these two part numbers?

A: The part numbers differ only in the suffix designation (MSBS versus 0SB). Both designations represent the same LM282B series LED with identical performance parameters. The suffix variation reflects Samsung's internal packaging or distribution channel coding and does not affect electrical or mechanical function.

Q: Are both parts suitable for new production designs?

A: Both parts carry "Not For New Designs" status from Samsung. This designation indicates the product line is in end-of-life phase. For new designs, consultation with Samsung or evaluation of current-generation LED alternatives is recommended.

Q: What are the storage and handling requirements for these components?

A: Both parts have Moisture Sensitivity Level (MSL) 2A with a 4-week floor life. Components must be stored in dry conditions (≤30% relative humidity) and used within 4 weeks of package opening. Standard ESD precautions apply to surface-mount LED handling.

Q: Can these LEDs be operated at currents above 150mA?

A: The maximum rated current is 160mA. Operation above this limit voids the component specifications and may reduce lifespan or cause premature failure. The 150mA test current represents the standard operating point for luminous flux and efficiency ratings.

Q: What is the thermal resistance specification used for?

A: The 15°C/W thermal resistance indicates the temperature rise per watt of power dissipation. At 150mA and 6.3V (0.945W), the junction temperature rise above ambient is approximately 14°C. Proper thermal management through PCB copper area and solder pad design is necessary for reliable long-term operation.

Q: Are these parts RoHS compliant?

A: Yes. Both SPMWH1221FD5GBTMSB and SPMWH1221FD5GBT0SB are RoHS compliant, meeting EU Directive 2011/65/EU restrictions on hazardous substances.

Q: What is the CRI value and why does it matter?

A: CRI (Color Rendering Index) of 80 indicates moderate color rendering accuracy. This value is suitable for general lighting applications but may not meet requirements for color-critical applications such as retail display or photography lighting, which typically require CRI ≥90.