W714SRD LED Red Diffused Square Type Equivalent & Substitute Parts

Part Overview

The W714SRD is a red diffused LED indicator manufactured by Kingbright, designed for through-hole mounting applications. This component features a 3.00mm square lens with diffused transparency, delivering 70mcd at 20mA test current with a forward voltage of 1.85V. The product is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support, maintenance, and production continuity. Substitute parts must maintain compatibility across electrical characteristics, mechanical form factor, and mounting specifications while meeting current availability and compliance requirements.

Substiute Parts

W714SRD

KingbrightIn Stock: 1127W714SRD Datasheet

Current PartRFQ

WP714SURWTK/TD

KingbrightIn Stock: 1076WP714SURWTK/TD Datasheet

SimilarRFQ

XSMDK43MB

SunLEDIn Stock: 8146XSMDK43MB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the W714SRD are selected based on the following critical parameters that determine functional equivalence:

Primary Compatibility Criteria:

• Color: Red
• Lens Transparency: Diffused
• Mounting Type: Through Hole
• Package / Case: Radial
• Current - Test: 20mA
• RoHS Compliance: ROHS3 Compliant

Secondary Compatibility Parameters:

• Voltage - Forward (Vf): Range 1.85V to 1.95V acceptable
• Wavelength - Dominant: Red spectrum (630nm to 640nm)
• Lens Size: 2.00mm to 3.00mm
• Viewing Angle: 110° to 140°
• Millicandela Rating: 39mcd to 100mcd

The identified substitute parts maintain red color indication, diffused lens characteristics, and through-hole radial mounting. All substitutes are ROHS3 compliant and operate at 20mA test current. Variations in forward voltage, luminous intensity, and viewing angle fall within acceptable ranges for indicator LED applications where the W714SRD was deployed.

Parameter Comparison

Engineering Selection Recommendations

WP714SURWTK/TD (Kingbright): This substitute maintains Kingbright manufacturer continuity and active product status. Forward voltage increases from 1.85V to 1.95V, requiring circuit verification for current-limiting resistor adjustment. Millicandela rating increases to 100mcd, providing enhanced brightness. Lens size reduces to 2.00mm, affecting mechanical fit in existing PCB layouts. Viewing angle expands to 140°, improving visibility across wider angles. This option is suitable for applications where increased brightness and wider viewing angle are acceptable, and mechanical redesign for the smaller lens is feasible.

XSMDK43MB (SunLED): This substitute introduces a manufacturer change to SunLED while maintaining active product status and Ice Cube series designation. Forward voltage matches WP714SURWTK/TD at 1.95V. Lens size returns to 3.00mm, matching the original W714SRD mechanical envelope. Millicandela rating decreases to 39mcd, approximately 56% of the original specification. Viewing angle matches the original at 110°. This option provides superior mechanical compatibility with existing designs but delivers reduced luminous intensity. Moisture sensitivity level improves to MSL 1 (Unlimited). This substitute is optimal for applications where mechanical fit and long-term reliability are prioritized over brightness.

Both substitutes maintain ROHS3 compliance and 20mA test current specifications. Selection depends on circuit tolerance for forward voltage variation, mechanical constraints, and brightness requirements.

Frequently Asked Questions (FAQ)

Q: Can the W714SRD be directly replaced with WP714SURWTK/TD without circuit modification?

A: No. The forward voltage increases from 1.85V to 1.95V. Current-limiting resistor values must be recalculated to maintain 20mA test current. The lens size reduction from 3.00mm to 2.00mm requires verification of mechanical fit in the PCB layout and enclosure aperture.

Q: What is the primary difference between WP714SURWTK/TD and XSMDK43MB?

A: WP714SURWTK/TD maintains Kingbright manufacturer origin with higher brightness (100mcd) but smaller lens (2.00mm). XSMDK43MB uses SunLED manufacturer with lower brightness (39mcd) but preserves the 3.00mm lens size and mechanical envelope of the original W714SRD.

Q: Is the XSMDK43MB suitable for direct mechanical substitution?

A: Yes. The XSMDK43MB maintains the 3.00mm lens size, 110° viewing angle, and radial through-hole package identical to W714SRD. Forward voltage increases to 1.95V, requiring resistor recalculation. Luminous intensity decreases to 39mcd.

Q: Are all substitute parts RoHS compliant?

A: Yes. Both WP714SURWTK/TD and XSMDK43MB are ROHS3 compliant, matching the original W714SRD specification.

Q: Which substitute has better long-term availability?

A: XSMDK43MB shows higher current inventory (8059 Pcs) compared to WP714SURWTK/TD (1003 Pcs) and maintains active product status with SunLED. Both are active products, ensuring continued availability.

Q: Can brightness differences affect circuit operation?

A: Brightness differences (70mcd original, 100mcd or 39mcd substitutes) do not affect circuit operation but alter visual indication intensity. Applications requiring specific brightness levels must account for these variations through resistor adjustment or optical design changes.

Q: What is the impact of viewing angle differences?

A: WP714SURWTK/TD expands viewing angle to 140° versus the original 110°, improving visibility from wider angles. XSMDK43MB maintains 110°. Viewing angle affects user perception and visibility in different mounting orientations but does not impact electrical circuit function.