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FR1104B-TR Red 2-PLCC LED Equivalent & Substitute Parts
Part Overview
The FR1104B-TR is a red 632nm LED indication component manufactured by Stanley Electric Co in a 2-PLCC surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The FR1104B-TR delivers 120mcd luminous intensity at 20mA test current with a 2V forward voltage and 120° viewing angle, suitable for indicator applications requiring discrete red LED solutions.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | FR1104B-TR |
| Manufacturer | Stanley Electric Co |
| Color | Red |
| Wavelength - Dominant | 632nm |
| Wavelength - Peak | 645nm |
| Voltage - Forward (Vf) Typical | 2V |
| Current - Test | 20mA |
| Millicandela Rating | 120mcd |
| Viewing Angle | 120° |
| Lens Style | Round with Flat Top |
| Lens Size | 2.40mm Dia |
| Package / Case | 2-PLCC |
| Size / Dimension | 3.20mm L x 2.80mm W |
| Height (Max) | 2.10mm |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution for the FR1104B-TR is determined by strict alignment of the following critical parameters:
Mandatory Matching Parameters:
- Package / Case: 2-PLCC (all substitutes must use identical package)
- Mounting Type: Surface Mount
- Voltage - Forward (Vf) Typical: 2V
- Current - Test: 20mA
- Viewing Angle: 120°
- Lens Style: Round with Flat Top
- Lens Size: 2.40mm Dia
- Size / Dimension: 3.20mm L x 2.80mm W
- Height (Max): 2.10mm
- Color: Red
- Lens Transparency: Clear
Allowable Variation Parameters:
- Wavelength - Dominant: 632nm to 633nm range
- Wavelength - Peak: 640nm to 645nm range
- Millicandela Rating: 65mcd to 140mcd range
- Product Status: Active or Obsolete
- Moisture Sensitivity Level: 1 to 4
- RoHS Status: Compliant or Unaffected
Substitute parts are grouped into parametric equivalents (matching all critical parameters with minor luminous intensity variation) and similar alternatives (meeting core electrical and mechanical requirements with broader luminous intensity tolerance).
Parameter Comparison
| Parameter | FR1104B-TR (Main) | VFHR1104LS-TR | QTLP670CRTR | LS T676-P2S1-1-Z | LS T676-Q1R2-1-Z |
|---|---|---|---|---|---|
| Manufacturer | Stanley Electric Co | Stanley Electric Co | onsemi | ams-OSRAM USA INC. | ams-OSRAM USA INC. |
| Color | Red | Red | Red | Red | Red |
| Wavelength - Dominant | 632nm | 632nm | 624nm | 633nm | 633nm |
| Wavelength - Peak | 645nm | 640nm | 630nm | 645nm | 645nm |
| Voltage - Forward (Vf) Typical | 2V | 2V | 2V | 2V | 2V |
| Current - Test | 20mA | 20mA | 20mA | 20mA | 20mA |
| Millicandela Rating | 120mcd | 140mcd | 65mcd | 140mcd | 125.5mcd |
| Viewing Angle | 120° | 120° | 120° | 120° | 120° |
| Lens Style | Round with Flat Top | Round with Flat Top | Round with Flat Top | Round with Flat Top | Round with Flat Top |
| Lens Size | 2.40mm Dia | 2.40mm Dia | 2.40mm Dia | 2.40mm Dia | 2.40mm Dia |
| Package / Case | 2-PLCC | 2-PLCC | 2-PLCC | 2-PLCC | 2-PLCC |
| Size / Dimension | 3.20mm L x 2.80mm W | 3.20mm L x 2.80mm W | 3.20mm L x 2.80mm W | 3.20mm L x 2.80mm W | 3.20mm L x 2.80mm W |
| Height (Max) | 2.10mm | 2.10mm | 2.10mm | 2.10mm | 2.10mm |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Product Status | Obsolete | Active | Obsolete | Active | Active |
| RoHS Status | Not Specified | ROHS3 Compliant | Not Specified | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 4 (72 Hours) | 2A (4 Weeks) | 1 (Unlimited) | 2 (1 Year) | 2 (1 Year) |
Engineering Selection Recommendations
Primary Substitutes (Parametric Equivalents):
VFHR1104LS-TR and LS T676-Q1R2-1-Z are the preferred parametric equivalents for FR1104B-TR replacement. Both parts maintain identical electrical characteristics (2V forward voltage, 20mA test current, 120° viewing angle) and mechanical compatibility (2-PLCC package, 3.20mm x 2.80mm x 2.10mm maximum height). VFHR1104LS-TR offers 140mcd luminous intensity with improved moisture sensitivity (MSL 2A) and active product status. LS T676-Q1R2-1-Z provides 125.5mcd output with ROHS3 compliance and active status, representing the closest luminous intensity match to the original 120mcd specification.
Secondary Substitute (Parametric Equivalent):
LS T676-P2S1-1-Z functions as an alternative parametric equivalent with 140mcd output, ROHS3 compliance, and active product status. This part maintains all mandatory electrical and mechanical parameters.
Alternative Substitute (Similar):
QTLP670CRTR from onsemi provides functional compatibility with identical package, voltage, current, and viewing angle specifications. This part delivers 65mcd luminous intensity, representing lower brightness output. QTLP670CRTR carries MSL 1 rating (unlimited moisture sensitivity) and remains available despite obsolete status classification.
Compliance Considerations:
VFHR1104LS-TR, LS T676-P2S1-1-Z, and LS T676-Q1R2-1-Z all carry ROHS3 compliance certification, supporting modern regulatory requirements. All substitute parts maintain REACH Unaffected status and EAR99 export classification consistent with the original FR1104B-TR.
Frequently Asked Questions (FAQ)
Q: Can VFHR1104LS-TR directly replace FR1104B-TR in existing PCB designs?
A: Yes. VFHR1104LS-TR maintains identical 2-PLCC package dimensions (3.20mm L x 2.80mm W x 2.10mm maximum height), forward voltage (2V), test current (20mA), viewing angle (120°), and lens specifications. The 20mcd increase in luminous intensity (140mcd versus 120mcd) represents a 16.7% brightness increase within acceptable tolerance for indicator applications.
Q: What is the difference between LS T676-Q1R2-1-Z and LS T676-P2S1-1-Z?
A: Both parts are parametric equivalents from ams-OSRAM USA INC. with identical electrical and mechanical specifications. LS T676-Q1R2-1-Z delivers 125.5mcd luminous intensity and has significantly higher inventory availability (63,232 pcs versus 969 pcs). LS T676-P2S1-1-Z delivers 140mcd output. Both maintain 2-PLCC package compatibility and ROHS3 compliance.
Q: Is QTLP670CRTR suitable for applications requiring 120mcd brightness?
A: QTLP670CRTR delivers 65mcd luminous intensity, representing 45.8% lower brightness than FR1104B-TR. This part is suitable only for applications where reduced brightness is acceptable. All other electrical and mechanical parameters (2V forward voltage, 20mA test current, 120° viewing angle, 2-PLCC package) remain compatible.
Q: What does MSL rating mean for these LED components?
A: Moisture Sensitivity Level (MSL) indicates the maximum time a component can be exposed to ambient conditions (30°C, 60% relative humidity) before soldering. FR1104B-TR carries MSL 4 (72 hours maximum). VFHR1104LS-TR carries MSL 2A (4 weeks), and LS T676-Q1R2-1-Z carries MSL 2 (1 year), providing extended shelf life and handling flexibility.
Q: Are all substitute parts ROHS3 compliant?
A: VFHR1104LS-TR, LS T676-P2S1-1-Z, and LS T676-Q1R2-1-Z carry explicit ROHS3 compliance certification. QTLP670CRTR does not specify RoHS status. FR1104B-TR does not specify RoHS status. For applications requiring ROHS3 compliance, select from the three Stanley Electric Co and ams-OSRAM USA INC. active-status parts.
Q: Can these parts be used interchangeably in production?
A: Yes, within the constraints of luminous intensity tolerance. VFHR1104LS-TR, LS T676-Q1R2-1-Z, and LS T676-P2S1-1-Z are direct parametric equivalents with luminous intensity ranging from 125.5mcd to 140mcd. QTLP670CRTR requires design review due to 65mcd output. All parts maintain identical package, voltage, current, and viewing angle specifications.
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