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APT2012ZGCK Equivalent & Substitute Parts Reference
Part Overview
The APT2012ZGCK is an active-status green LED indication component manufactured by Kingbright, designed for surface mount applications in the 0805 (2012 Metric) package format. This discrete LED operates at 3.3V forward voltage with a dominant wavelength of 525nm and delivers 550 millicandela brightness at 20mA test current. The component is packaged in Tape & Reel format with ROHS3 compliance and MSL 3 moisture sensitivity rating. Substitute parts are identified when design requirements necessitate alternative sourcing, inventory constraints, or specific performance parameter adjustments within the green LED indication category.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | APT2012ZGCK | — |
| Manufacturer | Kingbright | — |
| Color | Green | — |
| Wavelength - Dominant | 525 | nm |
| Wavelength - Peak | 515 | nm |
| Voltage - Forward (Vf) Typical | 3.3 | V |
| Current - Test | 20 | mA |
| Millicandela Rating | 550 | mcd |
| Viewing Angle | 140 | ° |
| Package / Case | 0805 (2012 Metric) | — |
| Mounting Type | Surface Mount | — |
| Lens Style | Rectangle with Flat Top | — |
| Lens Transparency | Clear | — |
| Size / Dimension | 2.00mm L x 1.25mm W | — |
| Height (Max) | 0.75 | mm |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | — |
| Product Status | Active | — |
Substitute Part Grouping Explanation
Substitution logic for the APT2012ZGCK is determined by the following critical parameters: package format (0805 / 2012 Metric), mounting type (Surface Mount), lens transparency (Clear), color (Green), forward voltage operating range, wavelength specification, and compliance certifications (ROHS3, REACH Unaffected).
Parametric Equivalent Classification: Parts maintaining identical or functionally equivalent forward voltage (3.3V), dominant wavelength (525nm), package dimensions, and mounting characteristics qualify as direct parametric equivalents.
Similar Substitute Classification: Parts sharing the same package format, mounting type, and lens configuration but with variations in forward voltage, wavelength, or brightness output are classified as similar substitutes. These require circuit-level evaluation for compatibility.
The substitute parts identified—APT2012ZGC, XZDGK54W-1, XZMG54W-1, and XZVG54W-1—are grouped based on the degree of parameter alignment with the primary component.
Parameter Comparison
| Parameter | APT2012ZGCK (Main) | APT2012ZGC (Parametric Equivalent) | XZDGK54W-1 (Similar) | XZMG54W-1 (Similar) | XZVG54W-1 (Similar) |
|---|---|---|---|---|---|
| Manufacturer | Kingbright | Kingbright | SunLED | SunLED | SunLED |
| Color | Green | Green | Green | Green | Green |
| Wavelength - Dominant (nm) | 525 | 525 | 525 | 568 | 570 |
| Wavelength - Peak (nm) | 515 | 515 | 515 | 565 | 574 |
| Voltage - Forward (Vf) Typical (V) | 3.3 | 3.3 | 3.3 | 2.2 | 2.1 |
| Current - Test (mA) | 20 | 20 | 20 | 20 | 20 |
| Millicandela Rating (mcd) | 550 | 600 | 347 | 11 | 49 |
| Viewing Angle (°) | 140 | 120 | 120 | 120 | 120 |
| Package / Case | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Lens Style | Rectangle with Flat Top | Rectangle with Flat Top | Rectangle with Flat Top | Rectangle with Flat Top | Rectangle with Flat Top |
| Lens Transparency | Clear | Clear | Clear | Clear | Clear |
| Size / Dimension (mm) | 2.00 L x 1.25 W | 2.00 L x 1.25 W | 2.00 L x 1.25 W | 2.00 L x 1.25 W | 2.00 L x 1.25 W |
| Height (Max) (mm) | 0.75 | 0.75 | 0.75 | 0.75 | 0.85 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) |
| Product Status | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
APT2012ZGC (Kingbright): This parametric equivalent maintains identical forward voltage (3.3V), dominant wavelength (525nm), and package specifications as the APT2012ZGCK. The primary difference is increased brightness output (600mcd versus 550mcd) and reduced viewing angle (120° versus 140°). Both components carry Active product status, ROHS3 compliance, and identical MSL ratings. Selection of APT2012ZGC is appropriate when higher brightness output is acceptable and the narrower viewing angle does not conflict with application requirements.
XZDGK54W-1 (SunLED): This similar substitute maintains the 3.3V forward voltage and 525nm dominant wavelength specifications. The component operates with reduced brightness (347mcd) and 120° viewing angle. Package format, mounting type, and compliance certifications remain aligned with the primary part. XZDGK54W-1 is suitable for applications where brightness reduction is tolerable and cross-manufacturer sourcing is required.
XZMG54W-1 (SunLED): This similar substitute operates at reduced forward voltage (2.2V) with significantly different wavelength characteristics (568nm dominant, 565nm peak). Brightness output is substantially lower (11mcd). This component requires circuit redesign to accommodate the lower forward voltage and is applicable only when wavelength shift and brightness reduction align with application specifications.
XZVG54W-1 (SunLED): This similar substitute operates at reduced forward voltage (2.1V) with wavelength characteristics of 570nm dominant and 574nm peak. Brightness output is low (49mcd). Maximum height is increased to 0.85mm. This component requires circuit redesign and is applicable only when the wavelength shift, brightness reduction, and height increase are compatible with application constraints.
All substitute parts maintain ROHS3 compliance, REACH Unaffected status, and Active product status, ensuring regulatory alignment with the primary component.
Frequently Asked Questions (FAQ)
Q: Can APT2012ZGC be used as a direct replacement for APT2012ZGCK?
A: APT2012ZGC is a parametric equivalent with identical forward voltage (3.3V) and wavelength (525nm). The primary differences are increased brightness (600mcd versus 550mcd) and narrower viewing angle (120° versus 140°). Direct substitution is possible if the application tolerates higher brightness and the narrower viewing angle does not impact system performance.
Q: What are the key differences between the Kingbright and SunLED substitute options?
A: Kingbright APT2012ZGC maintains the 3.3V forward voltage specification. SunLED alternatives (XZDGK54W-1, XZMG54W-1, XZVG54W-1) introduce variations in forward voltage, wavelength, and brightness. XZDGK54W-1 maintains 3.3V but with reduced brightness. XZMG54W-1 and XZVG54W-1 operate at significantly lower forward voltages (2.2V and 2.1V respectively) and require circuit-level evaluation.
Q: Are all substitute parts compatible with the same PCB footprint?
A: All substitute parts share the 0805 (2012 Metric) package format and identical planar dimensions (2.00mm L x 1.25mm W). XZVG54W-1 has a maximum height of 0.85mm compared to 0.75mm for other parts. PCB footprint compatibility is maintained; however, height variation must be evaluated for clearance constraints in the application assembly.
Q: What compliance certifications apply to all substitute parts?
A: All substitute parts carry ROHS3 compliance and REACH Unaffected status, matching the primary APT2012ZGCK component. Moisture Sensitivity Level (MSL) is rated at 3 (168 Hours) for all parts, ensuring consistent handling and storage requirements.
Q: Which substitute part is recommended for applications requiring wavelength precision?
A: APT2012ZGC and XZDGK54W-1 maintain the 525nm dominant wavelength specification of the primary component. XZMG54W-1 (568nm) and XZVG54W-1 (570nm) introduce significant wavelength shifts and are applicable only when the application specifications explicitly permit these wavelength variations.
Q: How does brightness variation affect substitute part selection?
A: The primary APT2012ZGCK operates at 550mcd. APT2012ZGC provides increased brightness (600mcd), suitable for applications requiring higher light output. XZDGK54W-1 (347mcd), XZMG54W-1 (11mcd), and XZVG54W-1 (49mcd) deliver progressively lower brightness levels. Substitute selection must align with application illumination requirements and circuit current-limiting design.
Q: Can XZMG54W-1 or XZVG54W-1 be used without circuit modification?
A: No. Both components operate at significantly lower forward voltages (2.2V and 2.1V respectively) compared to the primary part (3.3V). Circuit redesign is required to accommodate the reduced voltage drop and maintain proper current control. Direct substitution without circuit modification will result in excessive LED current and component failure.
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