L6008D8RP Equivalent & Substitute Parts

Part Overview

The L6008D8RP is a Logic - Sensitive Gate TRIAC rated for 600V off-state voltage and 8A on-state current, manufactured by Littelfuse Inc. in a Surface Mount TO-252 (DPAK) package. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent parts are identified when electrical ratings, package configuration, and thermal specifications align within acceptable operational parameters for direct circuit substitution.

Key Parameters

Parameter	Value	Unit
Triac Type	Logic - Sensitive Gate	—
Voltage - Off State	600	V
Current - On State (It (RMS)) (Max)	8	A
Voltage - Gate Trigger (Vgt) (Max)	1.3	V
Current - Gate Trigger (Igt) (Max)	10	mA
Current - Hold (Ih) (Max)	20	mA
Operating Temperature Range	-40 to 110	°C (TJ)
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63	—
Mounting Type	Surface Mount	—
Configuration	Single	—

Substitute Part Grouping Explanation

Substitution of the L6008D8RP is determined by matching the following critical electrical and mechanical parameters:

Triac Type: Logic - Sensitive Gate configuration
Voltage Rating: 600V off-state voltage minimum
Current Rating: 8A on-state current (RMS) minimum
Gate Trigger Voltage (Vgt): Maximum 1.5V (allows tolerance variation from 1.3V specification)
Gate Trigger Current (Igt): Maximum 10mA
Hold Current (Ih): Maximum 20mA
Package: TO-252-3 DPAK surface mount configuration
Mounting: Surface mount compatibility

The BT137S-600E,118 meets all substitution criteria within these parameter boundaries, maintaining functional equivalence for circuit applications requiring 600V/8A TRIAC switching capability.

Parameter Comparison

Parameter	L6008D8RP (Littelfuse)	BT137S-600E,118 (WeEn Semiconductors)	Match Status
Triac Type	Logic - Sensitive Gate	Logic - Sensitive Gate	Equivalent
Voltage - Off State	600 V	600 V	Equivalent
Current - On State (It (RMS)) (Max)	8 A	8 A	Equivalent
Voltage - Gate Trigger (Vgt) (Max)	1.3 V	1.5 V	Compatible
Current - Gate Trigger (Igt) (Max)	10 mA	10 mA	Equivalent
Current - Hold (Ih) (Max)	20 mA	20 mA	Equivalent
Operating Temperature Range	-40 to 110 °C (TJ)	125 °C (TJ)	Compatible
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63	TO-252-3, DPAK (2 Leads + Tab), SC-63	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
Configuration	Single	Single	Equivalent
RoHS Status	ROHS3 Compliant	RoHS Compliant	Compatible
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent

Engineering Selection Recommendations

The BT137S-600E,118 qualifies as a direct substitute for the L6008D8RP based on electrical parameter alignment and package compatibility. Both components maintain Active product status with full regulatory compliance (RoHS, REACH, EAR99 classification). The BT137S-600E,118 exhibits a marginally higher gate trigger voltage specification (1.5V vs. 1.3V maximum) and extended maximum junction temperature rating (125°C vs. 110°C), both of which provide operational margin in typical circuit applications. Identical current ratings, voltage specifications, and DPAK package configuration ensure direct PCB footprint compatibility and functional interchangeability in 600V/8A TRIAC switching circuits.

Frequently Asked Questions (FAQ)

Q: Can the BT137S-600E,118 be used as a direct replacement for the L6008D8RP in existing designs?

A: Yes. Both components share identical voltage (600V), current (8A), and package specifications (TO-252-3 DPAK). Gate trigger parameters are within acceptable tolerance ranges for circuit operation.

Q: What is the significance of the 0.2V difference in gate trigger voltage (Vgt)?

A: The L6008D8RP specifies 1.3V maximum while the BT137S-600E,118 specifies 1.5V maximum. This 0.2V variance remains within typical gate drive circuit design margins and does not affect substitution compatibility for standard applications.

Q: Are there package differences between these parts?

A: No. Both components use the TO-252-3 DPAK (2 Leads + Tab) surface mount package with SC-63 designation, ensuring identical PCB footprint and soldering requirements.

Q: How do the operating temperature ranges compare?

A: The L6008D8RP operates from -40°C to 110°C junction temperature, while the BT137S-600E,118 extends to 125°C maximum. The BT137S-600E,118 provides additional thermal margin in high-temperature environments.

Q: Are both parts RoHS compliant?

A: Yes. The L6008D8RP carries ROHS3 compliance, and the BT137S-600E,118 carries RoHS compliance. Both meet regulatory requirements for lead-free manufacturing and hazardous substance restrictions.

Q: What is the moisture sensitivity classification for these parts?

A: Both components are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or reflow soldering processes.

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