SMP2-SPGC

Part Overview

The SMP2-SPGC is a green 525nm LED indicator in 2-PLCC surface mount package, manufactured by Bivar Inc. Rated for 3.3V forward voltage with 570mcd brightness output at 20mA test current. The product status is obsolete, necessitating evaluation of available substitute parts to ensure continued component sourcing for existing applications and designs requiring green LED indication with matching 2-PLCC form factor and electrical characteristics.

Key Parameters

Parameter	SMP2-SPGC
Manufacturer	Bivar Inc.
Package / Case	2-PLCC
Color	Green
Wavelength - Dominant (nm)	525
Voltage - Forward (Vf) (Typ)	3.3V
Current - Test (mA)	20
Millicandela Rating (mcd)	570
Viewing Angle	120°
Lens Transparency	Clear
Lens Style	Round with Flat Top
Mounting Type	Surface Mount
Size / Dimension (L x W)	3.20mm x 2.80mm
Height (Max)	2.00mm
Moisture Sensitivity Level (MSL)	4 (72 Hours)

Substitute Part Grouping Explanation

Substitute parts are categorized based on the following allowable parameters for LED indication applications:

Primary Substitution Criteria (Strict Electrical & Mechanical Compatibility):

Package type: 2-PLCC surface mount (same form factor and footprint)
Color: Green indication
Wavelength dominant range: 520–575nm (green LED spectrum)
Forward voltage (Vf): 2.0V–3.5V (standard logic-compatible range)
Test current: 10–50mA (standard LED operating currents)
Viewing angle: 120° (standard for indicator applications)
Lens type: Clear, colorless
Mounting: Surface mount

Parts matching primary substitution criteria (2-PLCC package):

SMTL2-SPGC (Bivar Inc.) – Parametric equivalent, active product status
67-21/GBC-YV2W2N/2T (Everlight Electronics) – Similar specifications, higher brightness
HSMM-A100-U4PJ1 (Broadcom Limited) – Similar specifications, active product status
SML-Z14M4TT86 (Rohm Semiconductor) – 2-PLCC package, different wavelength and voltage profile
SML-Z14MTT86A (Rohm Semiconductor) – 2-PLCC package, different wavelength and voltage profile

Parts with different package form factor (compatibility with mechanical redesign):

67-21/GHC-AS2U1B17Z/2T (Everlight Electronics) – 1411 (3528 Metric) package
67-21/GHC-BV1/2T (Everlight Electronics) – 1411 (3528 Metric) package

Parameter Comparison

Part Number	Manufacturer	Package	Wavelength (nm)	Vf (Typ)	Current - Test (mA)	mcd Rating	Viewing Angle	Height Max (mm)	Product Status	Inventory
SMP2-SPGC	Bivar Inc.	2-PLCC	525	3.3V	20	570	120°	2.00	Obsolete	932
SMTL2-SPGC	Bivar Inc.	2-PLCC	525	3.3V	20	570	120°	2.10	Active	2569
67-21/GBC-YV2W2N/2T	Everlight Electronics	2-PLCC	528	3.2V	20	1350	120°	2.10	Active	991
67-21/GHC-AS2U1B17Z/2T	Everlight Electronics	1411 (3528)	527	3.0V	10	395	120°	0.85	Active	844
67-21/GHC-BV1/2T	Everlight Electronics	1411 (3528)	529	3.5V	20	807.5	120°	0.85	Active	1018
HSMM-A100-U4PJ1	Broadcom Limited	2-PLCC	525	3.4V	20	787.5	120°	2.10	Active	2100
SML-Z14M4TT86	Rohm Semiconductor	2-PLCC	572	2.1V	50	224	–	2.05	Active	4140
SML-Z14MTT86A	Rohm Semiconductor	2-PLCC	571	2.0V	20	90	–	2.05	Active	3022

Engineering Selection Recommendations

Direct Parametric Equivalent (Recommended First Choice):

SMTL2-SPGC (Bivar Inc.): Identical electrical specifications (3.3V, 525nm, 570mcd, 20mA), same 2-PLCC package. Active product status with 2569 units in stock. ROHS3 compliant and REACH unaffected. Minimal redesign risk; drop-in replacement.

High-Compatibility Alternatives (2-PLCC Package Variants):

HSMM-A100-U4PJ1 (Broadcom Limited): Matches SMP2-SPGC wavelength (525nm), exceeds brightness (787.5mcd), marginally higher forward voltage (3.4V vs 3.3V). Active status, ROHS3 compliant, REACH unaffected, MSL 2A. Suitable for circuits with ±0.1V tolerance.
67-21/GBC-YV2W2N/2T (Everlight Electronics): Green wavelength (528nm), similar forward voltage (3.2V), significantly higher brightness (1350mcd). Active status, ROHS3 compliant. Appropriate for applications requiring enhanced visibility.

Lower-Voltage Alternatives (2-PLCC Package, Different Operating Point):

SML-Z14M4TT86 (Rohm Semiconductor, SML-Z1 series): Lower forward voltage (2.1V), higher test current (50mA), reduced brightness (224mcd). Active status, ROHS3 compliant. Suitable only for lower-voltage applications with appropriate circuit adaptation.
SML-Z14MTT86A (Rohm Semiconductor, SML-Z1 series): Lowest forward voltage (2.0V), lowest brightness (90mcd). Active status, ROHS3 compliant. Requires circuit redesign for voltage level; limited brightness output.

Alternative Package Options (Form Factor Change Required):

67-21/GHC-AS2U1B17Z/2T (Everlight Electronics, 1411 package): Different package form factor (1411/3528 metric, 0.85mm height). Wavelength 527nm, lower voltage (3.0V), lower brightness (395mcd), lower test current (10mA). Active status. Requires PCB footprint redesign.
67-21/GHC-BV1/2T (Everlight Electronics, 1411 package): 1411 package form factor. Wavelength 529nm, higher voltage (3.5V), enhanced brightness (807.5mcd). Active status, ROHS3 compliant, lower MSL. Requires PCB redesign.

Frequently Asked Questions (FAQ)

Q: What makes SMTL2-SPGC the best substitute for SMP2-SPGC? A: SMTL2-SPGC is manufactured by the same supplier (Bivar Inc.) with identical electrical parameters (3.3V, 525nm wavelength, 570mcd brightness) and identical 2-PLCC package geometry. It represents a parametric equivalent with active product status, ensuring continued availability and requiring no circuit modifications.

Q: Can I use HSMM-A100-U4PJ1 as a direct replacement? A: HSMM-A100-U4PJ1 maintains the same 2-PLCC package footprint and wavelength (525nm) as SMP2-SPGC but specifies a forward voltage of 3.4V versus the original 3.3V. This 0.1V difference falls within typical design tolerances for logic-driven indicator circuits. The higher brightness output (787.5mcd versus 570mcd) is suitable for applications where enhanced visibility is not a limitation. Circuit verification is recommended for voltage-sensitive designs.

Q: Why do the 1411 (3528) package parts require mechanical redesign? A: The 1411 package has different physical dimensions and land pattern compared to the 2-PLCC package. The 2-PLCC package measures 3.20mm L x 2.80mm W x 2.00mm max height, while the 1411 package measures 3.50mm L x 2.80mm W x 0.85mm max height. PCB footprint, trace routing, and component spacing must be updated to accommodate the different package outline.

Q: What is the significance of the forward voltage differences in substitute parts? A: Forward voltage (Vf) determines the bias voltage required to operate the LED at rated current. SMP2-SPGC specifies 3.3V. Substitutes ranging from 2.0V to 3.5V require circuit analysis to ensure the series current-limiting resistor and power supply voltage provide correct operating current (20mA nominal for SMP2-SPGC). Parts with significantly lower Vf (2.0V–2.1V) require circuit redesign; parts with slightly higher Vf (3.4V–3.5V) may operate within design margins depending on circuit topology.

Q: Why is product status important for component selection? A: Product status identifies long-term availability and supply chain risk. Obsolete products (SMP2-SPGC) are no longer manufactured and inventory will be depleted. Active products (all substitutes listed) continue production and are supported by manufacturers, ensuring sustained sourcing for production quantities and future design iterations.

Q: What does ROHS3 compliance mean for my application? A: ROHS3 compliance indicates the part meets the Restriction of Hazardous Substances Directive, restricting the use of specific hazardous materials (lead, cadmium, mercury, chromium, PBB, PBDE) in electronic products. ROHS3-compliant parts are required for most commercial and industrial applications, especially in regulated markets. SMTL2-SPGC, HSMM-A100-U4PJ1, and all Everlight/Rohm substitutes listed are ROHS3 compliant.

Q: How do MSL (Moisture Sensitivity Level) ratings affect handling? A: MSL ratings specify the maximum time a component can be stored at 30°C/60% relative humidity before baking is required. SMP2-SPGC and SML-Z14MTT86A specify MSL 4 (72 hours); HSMM-A100-U4PJ1 specifies MSL 2A (4 weeks); others specify MSL 3 (168 hours). Lower MSL numbers indicate higher moisture sensitivity and require stricter handling procedures. For production environments with standard moisture controls, MSL 3 and MSL 4 parts are equivalent in practice; MSL 2A parts require more rigorous dry storage protocols.

Q: Can I use the SML-Z14 series parts as substitutes? A: SML-Z14M4TT86 and SML-Z14MTT86A operate at significantly lower forward voltages (2.1V and 2.0V respectively) and lower brightness outputs (224mcd and 90mcd) compared to SMP2-SPGC (3.3V, 570mcd). Direct substitution without circuit redesign is not viable. These parts are suitable only for applications designed specifically for lower-voltage operation where brightness reduction is acceptable.

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