Equivalent & Substitute Parts Reference: Littelfuse Inc. L2X5 (TRIAC SENS GATE 200V 0.8A DO214)

Part Overview

The Littelfuse Inc. L2X5 is a logic-sensitive gate TRIAC device rated for 200 V off-state and 800 mA RMS on-state current, supplied in a DO-214AA, SMB (3 Leads) Compak surface mount package. Key features include a maximum gate trigger voltage of 1.3 V and gate trigger current of 5 mA. This part is categorized under thyristors and is currently listed with a part status of obsolete. The obsolescence of this TRIAC necessitates utilization of compatible substitute models to ensure uninterrupted production and efficient component sourcing.

Key Parameters

Parameter	L2X5
Manufacturer	Littelfuse Inc.
Category	Thyristors
Triac Type	Logic - Sensitive Gate
Voltage - Off State	200 V
Current - On State (It (RMS))	800 mA
Voltage - Gate Trigger (Vgt) (Max)	1.3 V
Current - Non Rep. Surge 50, 60Hz (Itsm)	8.3A, 10A
Current - Gate Trigger (Igt) (Max)	5 mA
Current - Hold (Ih) (Max)	10 mA
Configuration	Single
Operating Temperature (TJ)	-40°C ~ 110°C
Mounting Type	Surface Mount
Package / Case	DO-214AA, SMB (3 Leads), Compak
Supplier Device Package	DO-214 3L
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
ECCN	EAR99

Substitute Part Grouping Explanation

Substitution is performed strictly using the following electrical and mechanical parameters:

Triac Type: Logic - Sensitive Gate
Voltage - Off State
Current - On State (It (RMS))
Gate Trigger Voltage and Current
Non-Rep Surge Current
Hold Current
Configuration
Operating Temperature Range
Mounting Type
Package / Case
Compliance (RoHS, MSL, ECCN)

Only substitute thyristors that match or exceed the main parameters are included. All alternatives are surface-mount TRIAC devices, possess logic-sensitive gate type, comparable current ratings, temperature ranges, and relevant package/case formats.

Parameter Comparison

Parameter	L2X5	BT1308W-600D,115	Z0103MN,135
Manufacturer	Littelfuse Inc.	WeEn Semiconductors	WeEn Semiconductors
Triac Type	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate
Voltage - Off State	200 V	600 V	600 V
Current - On State (It (RMS))	800 mA	800 mA	1 A
Voltage - Gate Trigger (Vgt) (Max)	1.3 V	2 V	1.3 V
Current - Non Rep. Surge 50/60Hz (Itsm)	8.3A, 10A	9A, 10A	8A, 8.5A
Current - Gate Trigger (Igt) (Max)	5 mA	5 mA	3 mA
Current - Hold (Ih) (Max)	10 mA	10 mA	7 mA
Configuration	Single	Single	Single
Operating Temperature (TJ)	-40°C ~ 110°C	125°C	125°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-214AA, SMB (3 Leads), Compak	TO-261-4, TO-261AA	TO-261-4, TO-261AA
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99	EAR99

Engineering Selection Recommendations

L2X5 is marked as obsolete. Substitute selections BT1308W-600D,115 and Z0103MN,135 are active status, RoHS-compliant, with MSL 1 (Unlimited) and EAR99 ECCN classifications. These substitutes are surface-mount thyristors with logic-sensitive gate design meeting all required compliance and inventory availability parameters shown.

Frequently Asked Questions (FAQ)

Q1: What are the primary substitution criteria for the L2X5 TRIAC?
A1: The substitution is based on the following electrical and mechanical parameters: Triac Type (Logic - Sensitive Gate), voltage ratings, current ratings, gate trigger characteristics, hold current, package/case type, mounting configuration, and compliance standards.

Q2: Are the listed substitutes compatible with the L2X5 footprint?
A2: All substitutes are in surface mount packages. L2X5 uses DO-214AA, substitutes use TO-261-4, TO-261AA (SC-73). Compatibility depends on matching physical package requirements in the end application.

Q3: Do the substitutes meet or exceed necessary electrical performance?
A3: The substitutes meet or exceed the L2X5's required parameters for current rating, voltage rating, gate trigger, and hold current as detailed in the table.

Q4: Is regulatory compliance consistent across all parts?
A4: Yes, all compared parts are RoHS compliant, MSL 1 (Unlimited), and ECCN EAR99.

Q5: What are the environmental and operating temperature considerations?
A5: The substitutes operate up to 125°C, compared to the L2X5 rated from -40°C to 110°C, meeting or exceeding requirements within the provided data.

Q6: How should packaging differences be addressed?
A6: Surface mount configuration is common to all; package/case specifics should be reviewed for PCB compatibility based on the end application.

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