EC103M2RP Equivalent & Substitute Parts

Part Overview

The EC103M2RP is a 600V, 800mA sensitive gate SCR manufactured by Littelfuse Inc. in TO-92 through-hole packaging. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are necessary when the original part becomes unavailable, when alternative packaging formats are required, or when design specifications allow for compatible alternatives with equivalent electrical performance characteristics.

Key Parameters

Parameter	EC103M2RP
Voltage - Off State	600 V
Voltage - Gate Trigger (Vgt) (Max)	800 mV
Current - Gate Trigger (Igt) (Max)	50 µA
Voltage - On State (Vtm) (Max)	1.7 V
Current - On State (It (RMS)) (Max)	800 mA
Current - Hold (Ih) (Max)	5 mA
SCR Type	Sensitive Gate
Operating Temperature	-40°C ~ 110°C
Package / Case	TO-226-3, TO-92-3 (TO-226AA) Formed Leads
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the EC103M2RP is determined by the following critical parameters:

Voltage Rating: Off-state voltage must be 600V minimum
SCR Type: Must be Sensitive Gate classification
Package Compatibility: TO-92-3 through-hole configuration required
Current Handling: On-state RMS current rating of 800mA minimum
Gate Trigger Characteristics: Vgt maximum of 800mV and compatible Igt specifications
Thermal Range: Operating temperature range must encompass or exceed -40°C to 110°C
Compliance: RoHS3 compliance and REACH unaffected status required

Substitute parts are grouped into two categories based on electrical performance:

Category A - Direct Electrical Equivalents (800mA RMS Rating): P0118MA 2AL3, X00602MA 1AA2, X00602MA 2AL2, X00602MA 5AL2, X00619MA5AL2

Category B - Higher Current Capability (1.25A RMS Rating): X0202MA 1BA2, X0202MA 2BL2, X0205MA 2BL2

Parameter Comparison

Parameter	EC103M2RP	P0118MA 2AL3	X00602MA 1AA2	X00602MA 2AL2	X00602MA 5AL2	X00619MA5AL2	X0202MA 1BA2	X0202MA 2BL2	X0205MA 2BL2
Voltage - Off State	600 V	600 V	600 V	600 V	600 V	600 V	600 V	600 V	600 V
Voltage - Gate Trigger (Vgt) (Max)	800 mV	800 mV	800 mV	800 mV	800 mV	800 mV	800 mV	800 mV	800 mV
Current - Gate Trigger (Igt) (Max)	50 µA	5 µA	200 µA	200 µA	200 µA	200 µA	200 µA	200 µA	50 µA
Voltage - On State (Vtm) (Max)	1.7 V	1.95 V	1.35 V	1.35 V	1.35 V	1.35 V	1.45 V	1.45 V	1.45 V
Current - On State (It (RMS)) (Max)	800 mA	800 mA	800 mA	800 mA	800 mA	800 mA	1.25 A	1.25 A	1.25 A
Current - Hold (Ih) (Max)	5 mA	5 mA	5 mA	5 mA	5 mA	5 mA	5 mA	5 mA	5 mA
SCR Type	Sensitive Gate	Sensitive Gate	Sensitive Gate	Sensitive Gate	Sensitive Gate	Sensitive Gate	Sensitive Gate	Sensitive Gate	Sensitive Gate
Operating Temperature	-40°C ~ 110°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	TO-226-3, TO-92-3 (TO-226AA) Formed Leads	TO-226-3, TO-92-3 (TO-226AA) Formed Leads	TO-226-3, TO-92-3 (TO-226AA)	TO-226-3, TO-92-3 (TO-226AA) Formed Leads	TO-226-3, TO-92-3 (TO-226AA) Formed Leads	TO-226-3, TO-92-3 (TO-226AA) Formed Leads	TO-226-3, TO-92-3 (TO-226AA)	TO-226-3, TO-92-3 (TO-226AA) Formed Leads	TO-226-3, TO-92-3 (TO-226AA) Formed Leads
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Format	Tape & Reel (TR)	Cut Tape (CT)	Bulk	Cut Tape (CT)	Cut Tape (CT)	Cut Tape (CT)	Bulk	Cut Tape (CT)	Cut Tape (CT)

Engineering Selection Recommendations

All listed substitute parts maintain RoHS3 compliance and REACH unaffected status, meeting regulatory requirements equivalent to the EC103M2RP.

For direct replacement with identical current rating (800mA RMS): Select from P0118MA 2AL3, X00602MA 1AA2, X00602MA 2AL2, X00602MA 5AL2, or X00619MA5AL2. These parts maintain the 800mA RMS on-state current specification. P0118MA 2AL3 is the manufacturer-recommended primary substitute. X00602MA 2AL2 carries Obsolete product status and should be avoided for new designs.

For applications requiring higher current capability (1.25A RMS): X0202MA 1BA2, X0202MA 2BL2, and X0205MA 2BL2 provide increased on-state current capacity while maintaining 600V voltage rating and sensitive gate characteristics. These are suitable only when circuit design permits the higher current rating.

Packaging considerations: Tape & Reel (TR) format of the original EC103M2RP can be substituted with Cut Tape (CT) or Bulk packaging formats depending on procurement and assembly requirements. All substitute parts are available in TO-92-3 through-hole configuration.

Temperature range: All substitute parts support extended operating temperature range of -40°C to 125°C, exceeding the EC103M2RP specification of -40°C to 110°C.

Frequently Asked Questions (FAQ)

Q: Can X0202MA 2BL2 replace EC103M2RP directly in my circuit? A: X0202MA 2BL2 is electrically compatible with EC103M2RP for voltage and gate trigger specifications. However, it carries a higher on-state RMS current rating of 1.25A versus 800mA. Direct substitution is acceptable if your circuit design does not depend on the lower current limit of the original part.

Q: What is the difference between Cut Tape (CT) and Bulk packaging? A: Cut Tape (CT) packaging provides components on continuous tape suitable for automated assembly equipment. Bulk packaging contains loose components. Both formats contain identical components; packaging selection depends on assembly process requirements.

Q: Why is X00602MA 2AL2 listed as Obsolete? A: X00602MA 2AL2 carries Obsolete product status. While electrically equivalent to EC103M2RP, it should not be selected for new designs. Use active-status alternatives such as X00602MA 5AL2 or X00619MA5AL2 instead.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts maintain RoHS3 compliance and REACH unaffected status, matching the regulatory compliance of EC103M2RP.

Q: What is the primary difference between P0118MA 2AL3 and X00602MA 1AA2? A: P0118MA 2AL3 is the manufacturer-recommended primary substitute with lower gate trigger current (5µA maximum) and higher on-state voltage (1.95V maximum). X00602MA 1AA2 has higher gate trigger current (200µA maximum) and lower on-state voltage (1.35V maximum). Selection depends on gate drive circuit requirements.

Q: Can I use X0205MA 2BL2 in place of EC103M2RP? A: X0205MA 2BL2 is compatible with EC103M2RP for voltage and package specifications. It features identical gate trigger current (50µA maximum) and higher on-state RMS current (1.25A). Substitution is valid when circuit design permits the increased current capability.

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