QBHP684U-RV LED Red 625nm SMD Equivalent & Substitute Parts

Part Overview

The QBHP684U-RV is a red LED (625nm wavelength) manufactured by QT Brightek in a 1414 (3535 Metric) surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and design requirements. The part operates at a test current of 700mA with a typical forward voltage of 2.6V and delivers 105lm luminous flux at 25°C test temperature. Substitute components must maintain compatibility with the 1414 package footprint and surface mount assembly process while meeting the electrical performance requirements of the application.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	QBHP684U-RV	—
Manufacturer	QT Brightek (QTB)	—
Color	Red	—
Wavelength	625nm	nm (620–630nm range)
Current – Test	700mA	mA
Voltage – Forward (Vf) Typical	2.6V	V
Current – Maximum	700mA	mA
Luminous Flux @ Test Current/Temperature	105lm	lm (Typ) @ 700mA, 25°C
Lumens/Watt @ Test Current	58 lm/W	lm/W
Package / Case	1414 (3535 Metric)	—
Mounting Type	Surface Mount	—
Size / Dimension	3.60mm × 3.60mm	L × W
Height – Seated (Max)	1.90mm	mm
Thermal Resistance of Package	6°C/W	°C/W
Product Status	Obsolete	—
Moisture Sensitivity Level (MSL)	3 (168 Hours)	—

Substitute Part Grouping Explanation

Substitute parts for the QBHP684U-RV are selected based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

Package / Case: 1414 (3535 Metric) surface mount package
Mounting Type: Surface Mount (SMD)
Color: Red or Red-Orange wavelength range
Wavelength Range: 615nm–630nm (includes 625nm primary specification and adjacent red-orange spectrum)
Electrical Operating Range: Forward voltage 2.1V–2.65V; maximum current 350mA–1A

Substitution Logic: Substitute parts are grouped into two categories based on current rating compatibility:

Direct Current Substitutes (700mA rated): Parts with maximum current ratings of 700mA or higher, suitable for applications requiring the full 700mA test current of the original QBHP684U-RV.
Reduced Current Substitutes (350mA rated): Parts with maximum current ratings of 350mA, suitable for applications where lower operating current is acceptable or where thermal management is a design constraint.

All substitute parts maintain the 1414 (3535 Metric) package footprint, ensuring PCB layout compatibility. Wavelength specifications within the 615nm–630nm range ensure color consistency for red and red-orange LED applications. Forward voltage variations (2.1V–2.65V) are within typical circuit design tolerances for LED driver circuits.

Parameter Comparison

Parameter	QBHP684U-RV (Main)	ELSW-F91R3-0LPNM-BR4R6	XPCRDO-L1-0000-00601	XPCRED-L1-0000-00401	XPEBRD-L1-0000-00601	XPEBRO-L1-0000-00B01	XPERDO-L1-0000-00601	XPERDO-L1-0000-00801
Manufacturer	QT Brightek	Everlight Electronics	CreeLED, Inc.	CreeLED, Inc.	CreeLED, Inc.	CreeLED, Inc.	CreeLED, Inc.	CreeLED, Inc.
Color	Red	Red	Red-Orange	Red	Red	Red-Orange	Red-Orange	Red-Orange
Wavelength	625nm (620–630nm)	623nm (615–630nm)	615nm (610–620nm)	625nm (620–630nm)	625nm (620–630nm)	615nm (610–620nm)	615nm (610–620nm)	615nm (610–620nm)
Current – Test	700mA	700mA	350mA	350mA	350mA	350mA	350mA	350mA
Voltage – Forward (Vf) Typical	2.6V	2.65V	2.2V	2.2V	2.2V	2.2V	2.1V	2.1V
Current – Maximum	700mA	750mA	350mA	350mA	1A	1A	700mA	700mA
Luminous Flux @ Test Current	105lm (Typ)	95lm (90–100lm)	65lm (62–67lm)	54lm (52–57lm)	65lm (62–67lm)	97lm (94–100lm)	65lm (62–67lm)	77lm (74–81lm)
Lumens/Watt @ Test Current	58 lm/W	51 lm/W	84 lm/W	70 lm/W	84 lm/W	126 lm/W	88 lm/W	105 lm/W
Package / Case	1414 (3535 Metric)	1414 (3535 Metric)	1414 (3535 Metric)	1414 (3535 Metric)	1414 (3535 Metric)	1414 (3535 Metric)	1414 (3535 Metric)	1414 (3535 Metric)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Size / Dimension	3.60mm × 3.60mm	3.50mm × 3.50mm	3.45mm × 3.45mm	3.45mm × 3.45mm	3.45mm × 3.45mm	3.45mm × 3.45mm	3.45mm × 3.45mm	3.45mm × 3.45mm
Height – Seated (Max)	1.90mm	2.23mm	2.13mm	2.13mm	2.39mm	2.39mm	2.13mm	2.13mm
Thermal Resistance of Package	6°C/W	8°C/W	10°C/W	10°C/W	5°C/W	5°C/W	8°C/W	8°C/W
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
RoHS Status	—	RoHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)	1 (Unlimited)	—	—	—	—	1 (Unlimited)	—

Engineering Selection Recommendations

Category 1: Full Current Compatibility (700mA Operation)

For applications requiring operation at the original 700mA test current specification:

ELSW-F91R3-0LPNM-BR4R6 (Everlight Electronics SHWO Series)

Maintains 700mA test current with 750mA maximum rating
Red wavelength at 623nm within the acceptable 615–630nm range
Forward voltage 2.65V closely matches the original 2.6V specification
Active product status with RoHS3 compliance and unlimited MSL rating
Luminous flux of 95lm at 700mA represents 90% of original performance
Suitable for direct replacement in existing 700mA-rated circuit designs

XPERDO-L1-0000-00601 and XPERDO-L1-0000-00801 (CreeLED XLamp XP-E Series)

Both support 700mA maximum current rating
Red-Orange wavelength at 615nm within acceptable range
Forward voltage 2.1V requires circuit adjustment but remains within standard LED driver tolerance
Active product status with RoHS3 compliance and unlimited MSL rating
XPERDO-L1-0000-00801 delivers 77lm at 350mA test current with 105 lm/W efficiency
Thermal resistance of 8°C/W provides adequate heat dissipation for 700mA operation

Category 2: Reduced Current Operation (350mA Test Current)

For applications where lower operating current is acceptable or preferred:

XPCRED-L1-0000-00401 (CreeLED XLamp XP-C Red)

Exact wavelength match at 625nm (620–630nm range)
350mA maximum current with 2.2V forward voltage
Active product status with RoHS compliance
Delivers 54lm at 350mA test current with 70 lm/W efficiency
Thermal resistance of 10°C/W suitable for moderate power dissipation
Highest inventory availability (8942 pcs) among reduced-current options

XPEBRD-L1-0000-00601 (CreeLED XLamp XP-E2 Red)

Exact wavelength match at 625nm (620–630nm range)
1A maximum current rating with 350mA test current
Active product status with RoHS compliance
Delivers 65lm at 350mA test current with 84 lm/W efficiency
Superior thermal resistance of 5°C/W enables higher power density
Viewing angle of 130° provides wider light distribution

XPEBRO-L1-0000-00B01 (CreeLED XLamp XP-E2 Red-Orange)

Red-Orange wavelength at 615nm within acceptable range
1A maximum current rating with 350mA test current
Active product status with RoHS compliance
Delivers 97lm at 350mA test current with 126 lm/W efficiency (highest efficiency option)
Superior thermal resistance of 5°C/W
Highest luminous flux output among all substitutes at test current

Selection Criteria Summary:

All substitute parts maintain 1414 (3535 Metric) package compatibility
All substitute parts are active products with current manufacturing support
All substitute parts comply with RoHS requirements
Forward voltage variations (2.1V–2.65V) are accommodated by standard LED driver circuits
Wavelength specifications (615–630nm) maintain color consistency for red and red-orange applications
Thermal resistance ratings (5–10°C/W) are suitable for surface mount assembly thermal management

Frequently Asked Questions (FAQ)

Q1: Can I use a 350mA-rated substitute part in a circuit designed for 700mA operation?

A: No. Using a 350mA-rated part in a 700mA circuit will exceed the component's maximum current rating, causing premature failure, reduced lifespan, and potential thermal damage. The circuit must be redesigned to operate at 350mA, or a substitute part with 700mA or higher maximum current rating must be selected. ELSW-F91R3-0LPNM-BR4R6, XPERDO-L1-0000-00601, and XPERDO-L1-0000-00801 support 700mA operation.

Q2: What is the difference between Red (625nm) and Red-Orange (615nm) wavelength specifications?

A: Red (625nm) and Red-Orange (615nm) are distinct points within the visible red spectrum. Red-Orange (615nm) appears slightly more orange-tinted compared to pure Red (625nm). For applications requiring exact color matching to the original QBHP684U-RV, select substitutes with 625nm wavelength: XPCRED-L1-0000-00401 or XPEBRD-L1-0000-00601. Red-Orange (615nm) substitutes are acceptable where color tolerance permits.

Q3: How do forward voltage differences affect circuit design?

A: The QBHP684U-RV operates at 2.6V typical forward voltage. Substitute parts range from 2.1V to 2.65V. These variations affect the voltage drop across the LED and must be accommodated in the current-limiting resistor or active driver circuit. A 0.5V difference requires recalculation of series resistance or driver output voltage. Standard LED driver circuits typically tolerate ±0.3V variation without redesign. Consult the LED driver datasheet for acceptable forward voltage range.

Q4: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts use the 1414 (3535 Metric) surface mount package with identical footprint dimensions. However, height variations (1.90mm to 2.39mm) may affect clearance in space-constrained designs. Verify maximum height requirements in your PCB assembly specification. XPERDO-L1-0000-00601 and XPERDO-L1-0000-00801 have the lowest height at 2.13mm, matching the original 1.90mm most closely.

Q5: What does MSL (Moisture Sensitivity Level) mean for component handling?

A: MSL indicates how sensitive a component is to moisture absorption during storage and handling. The original QBHP684U-RV has MSL 3 (168 hours), requiring baking before reflow if exposed to moisture. Substitute parts ELSW-F91R3-0LPNM-BR4R6 and XPERDO-L1-0000-00601 have MSL 1 (Unlimited), meaning they are not moisture-sensitive and require no special storage precautions. Lower MSL ratings reduce manufacturing risk and handling costs.

Q6: Which substitute part offers the best thermal performance?

A: XPEBRD-L1-0000-00601 and XPEBRO-L1-0000-00B01 both feature thermal resistance of 5°C/W, compared to the original 6°C/W. Lower thermal resistance improves heat dissipation, enabling higher power density or longer operational life at equivalent power levels. These parts are recommended for thermally constrained applications.

Q7: What is the significance of RoHS and RoHS3 compliance?

A: RoHS (Restriction of Hazardous Substances) compliance indicates the component contains no lead, cadmium, mercury, or other restricted substances. RoHS3 is the current EU standard. All substitute parts are RoHS compliant. RoHS3-compliant parts (ELSW-F91R3-0LPNM-BR4R6, XPERDO-L1-0000-00601) meet the latest regulatory requirements and are preferred for new designs targeting current market standards.

Q8: How do I determine which substitute part is best for my application?

A: Evaluate your application against these criteria: (1) Required operating current (700mA or 350mA); (2) Color specification (Red 625nm or Red-Orange 615nm acceptable); (3) Thermal constraints (prefer 5°C/W if space-limited); (4) Regulatory requirements (RoHS3 preferred); (5) Inventory availability. For 700mA operation with exact color match, select ELSW-F91R3-0LPNM-BR4R6. For 350mA operation with best efficiency, select XPEBRO-L1-0000-00B01.

Q9: Can I mix different substitute parts in the same assembly?

A: Not recommended. Mixing parts with different forward voltages, luminous flux outputs, or thermal characteristics will result in inconsistent brightness and color across the assembly. Maintain consistency by using a single substitute part number throughout the design. If multiple part numbers are necessary, verify they are electrically and optically matched before assembly.

Q10: What inventory considerations should I account for?

A: XPCRED-L1-0000-00401 has the highest inventory (8942 pcs), followed by XPEBRD-L1-0000-00601 (11170 pcs). XPERDO-L1-0000-00501 has 21826 pcs available. For long-term production, select parts with higher inventory levels to ensure supply continuity. The original QBHP684U-RV has 892 pcs available but is obsolete, making substitution necessary for ongoing production.

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