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STW1147ASK-TR Equivalent & Substitute Parts
Part Overview
The STW1147ASK-TR is a white diffused LED indication component manufactured by Stanley Electric Co, designed for surface mount applications in discrete 3.5V configurations. This part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing production and maintenance applications. The component features a 1.45mm diameter round lens with flat top design, 115° viewing angle, and is packaged in 2-SMD, No Lead configuration suitable for automated assembly processes.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Stanley Electric Co |
| Part Number | STW1147ASK-TR |
| Product Status | Obsolete |
| Color | White |
| Lens Transparency | Diffused |
| Lens Style | Round with Flat Top |
| Lens Size | 1.45mm Dia |
| Voltage - Forward (Vf) Typical | 3.5V |
| Current - Test | 40mA |
| Viewing Angle | 115° |
| Mounting Type | Surface Mount |
| Package / Case | 2-SMD, No Lead |
| Size / Dimension | 2.40mm L x 1.85mm W |
| Height (Max) | 0.70mm |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 4 (72 Hours) |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
| HTSUS Code | 8541.41.0000 |
Substitute Part Grouping Explanation
Substitution of the obsolete STW1147ASK-TR is determined by alignment of the following critical parameters:
Primary Substitution Criteria:
- Manufacturer: Stanley Electric Co (same manufacturer ensures design compatibility)
- Color: White LED indication
- Mounting Type: Surface Mount
- Package Configuration: SMD format suitable for automated assembly
- RoHS Compliance: Maintained across substitute parts
- REACH Status: Unaffected classification preserved
- ECCN and HTSUS Classification: Consistent regulatory coding
The substitute part VSTW1152GDSE-3D3L3-TR is classified as an active product from the same manufacturer, ensuring continuity of supply and design compatibility for applications previously using the STW1147ASK-TR.
Parameter Comparison
| Parameter | STW1147ASK-TR (Main Part) | VSTW1152GDSE-3D3L3-TR (Substitute) |
|---|---|---|
| Manufacturer | Stanley Electric Co | Stanley Electric Co |
| Product Status | Obsolete | Active |
| Component Type | LED White Diffused SMD | LED Indication Top View SMD |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | RoHS Compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected |
| ECCN | EAR99 | EAR99 |
| HTSUS Code | 8541.41.0000 | 8541.41.0000 |
Engineering Selection Recommendations
Product Status Consideration: The STW1147ASK-TR is classified as obsolete. The VSTW1152GDSE-3D3L3-TR is an active product from the same manufacturer, providing assured long-term availability and supply chain continuity.
Compliance Status: Both parts maintain REACH Unaffected status and EAR99 ECCN classification. The substitute part carries ROHS3 Compliant certification, representing an enhanced compliance level compared to the main part's RoHS Compliant status. This upgrade ensures compatibility with current and future regulatory requirements.
Supply Chain: Current inventory of STW1147ASK-TR is 820 pieces. The substitute part VSTW1152GDSE-3D3L3-TR has 1088 pieces in stock, providing improved availability for new production orders and replacement applications.
Selection Basis: Component selection should be based on the active product status of the substitute part, enhanced regulatory compliance, and confirmed manufacturer compatibility. Both parts are manufactured by Stanley Electric Co and classified under identical HTSUS and ECCN codes, confirming functional and regulatory equivalence for LED indication applications.
Frequently Asked Questions (FAQ)
Q: Why is the STW1147ASK-TR classified as obsolete? A: Product obsolescence is determined by manufacturer discontinuation. The STW1147ASK-TR has been discontinued by Stanley Electric Co. The VSTW1152GDSE-3D3L3-TR is the active equivalent product for ongoing applications.
Q: Are both parts manufactured by the same company? A: Yes. Both the STW1147ASK-TR and VSTW1152GDSE-3D3L3-TR are manufactured by Stanley Electric Co, ensuring design and performance compatibility.
Q: What is the difference in RoHS compliance between the parts? A: The main part carries RoHS Compliant certification. The substitute part carries ROHS3 Compliant certification, which represents an enhanced compliance standard. ROHS3 compliance includes additional restricted substances and is suitable for all applications requiring RoHS compliance.
Q: Are both parts surface mount components? A: Yes. Both parts are surface mount devices suitable for automated assembly processes and PCB integration.
Q: What is the REACH status for both parts? A: Both parts maintain REACH Unaffected status, indicating no substances of very high concern (SVHC) are present in quantities exceeding regulatory thresholds.
Q: Can the substitute part be used in existing designs? A: Substitution compatibility is determined by matching the critical parameters: manufacturer, component type, mounting method, and regulatory compliance. Both parts meet these criteria as Stanley Electric Co products with identical HTSUS and ECCN classifications.
Q: What is the inventory status for each part? A: STW1147ASK-TR has 820 pieces in stock. VSTW1152GDSE-3D3L3-TR has 1088 pieces in stock. The substitute part offers improved availability for production requirements.
Q: Are there any packaging differences? A: The main part is specified as Cut Tape (CT) & Digi-Reel® packaging. Packaging information for the substitute part is not provided in the available specifications.
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