EC103MAP Equivalent & Substitute Parts

Part Overview

The EC103MAP is a 600V, 800mA sensitive gate SCR (Silicon Controlled Rectifier) manufactured by Littelfuse Inc. in TO-92 through-hole packaging. This thyristor is designed for applications requiring controlled rectification and switching at moderate voltage and current levels. The part is currently active and in stock with 688 units available. Equivalent and substitute parts are identified based on matching electrical characteristics and mechanical compatibility to support design flexibility, supply chain alternatives, and inventory optimization.

Substiute Parts

EC103MAP

Littelfuse Inc.In Stock: 710EC103MAP Datasheet

Current PartRFQ

P0111MA 1AA3

STMicroelectronicsIn Stock: 5452P0111MA 1AA3 Datasheet

MFR RecommendedRFQ

P0118MA 2AL3

STMicroelectronicsIn Stock: 2273P0118MA 2AL3 Datasheet

MFR RecommendedRFQ

X00619MA5AL2

STMicroelectronicsIn Stock: 6488X00619MA5AL2 Datasheet

MFR RecommendedRFQ

X0202MA 1BA2

STMicroelectronicsIn Stock: 5541X0202MA 1BA2 Datasheet

MFR RecommendedRFQ

X0202MA 2BL2

STMicroelectronicsIn Stock: 2291X0202MA 2BL2 Datasheet

MFR RecommendedRFQ

X0205MA 2BL2

STMicroelectronicsIn Stock: 774X0205MA 2BL2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EC103MAP is determined by the following critical parameters:

Primary Matching Criteria:

• Voltage - Off State: 600V (exact match required)
• SCR Type: Sensitive Gate (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: TO-92-3 (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

Secondary Compatibility Parameters:

• Voltage - Gate Trigger (Vgt) (Max): 800mV (exact match required)
• Current - Gate Trigger (Igt) (Max): up to 200µA (substitute may be equal or lower)
• Voltage - On State (Vtm) (Max): up to 1.7V (substitute may be equal or lower)
• Current - On State (It (RMS)) (Max): 800mA minimum (substitute must meet or exceed)
• Current - Hold (Ih) (Max): 5mA (exact match required)
• Operating Temperature Range: minimum -40°C to 110°C (substitute may have extended range)

All identified substitute parts meet these criteria and are manufactured by STMicroelectronics with active product status and ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are manufactured by STMicroelectronics and maintain active product status with ROHS3 compliance, matching the regulatory and supply chain requirements of the EC103MAP.

Direct Electrical Equivalents (800mA RMS Current Rating): P0111MA 1AA3, P0118MA 2AL3, and X00619MA5AL2 maintain the 800mA RMS current rating of the EC103MAP. These parts are suitable for applications with identical current specifications. P0118MA 2AL3 offers the lowest gate trigger current (5µA) and is available in Cut Tape packaging. X00619MA5AL2 provides the lowest on-state voltage (1.35V) among 800mA-rated options.

Higher Current Capacity Alternatives (1.25A RMS Current Rating): X0202MA 1BA2, X0202MA 2BL2, and X0205MA 2BL2 provide increased current handling capability at 1.25A RMS, suitable for applications requiring higher current margins or upgraded performance. These parts are backward-compatible in circuits designed for 800mA operation. X0205MA 2BL2 offers moderate gate trigger current (50µA) and is available in Cut Tape packaging with 736 units in stock.

All substitute parts support the extended operating temperature range of -40°C to 125°C, exceeding the EC103MAP specification of -40°C to 110°C.

Frequently Asked Questions (FAQ)

Q: Can I substitute EC103MAP with any of the listed parts? A: Yes, all listed parts meet the core substitution criteria: 600V off-state voltage, sensitive gate SCR type, TO-92-3 through-hole package, and ROHS3 compliance. Selection depends on your specific application requirements for gate trigger current, on-state voltage, and current capacity.

Q: What is the difference between 800mA and 1.25A rated parts? A: The EC103MAP is rated for 800mA RMS current. Parts rated for 1.25A RMS (X0202MA 1BA2, X0202MA 2BL2, X0205MA 2BL2) provide higher current capacity and can be used as direct substitutes in applications operating at or below 800mA. They offer additional design margin for current-limited applications.

Q: Does gate trigger current affect substitution? A: Gate trigger current (Igt) varies among substitutes from 5µA to 200µA. Lower values (P0118MA 2AL3 at 5µA) require less gate drive current, potentially reducing driver circuit complexity. Higher values match the EC103MAP specification (200µA). Selection should align with your gate drive circuit design.

Q: Are packaging options interchangeable? A: All substitute parts use TO-92-3 through-hole packaging, identical to the EC103MAP. Packaging variants (Bulk, Cut Tape, Tape & Box) refer to supply format only and do not affect electrical or mechanical compatibility on the PCB.

Q: What is the operating temperature difference? A: The EC103MAP operates from -40°C to 110°C. All substitute parts extend this range to -40°C to 125°C, providing additional thermal margin for high-temperature applications without performance degradation within the EC103MAP's original temperature range.

Q: Which substitute offers the best on-state voltage performance? A: X00619MA5AL2 provides the lowest maximum on-state voltage at 1.35V, compared to the EC103MAP at 1.7V. This reduces power dissipation in high-current applications. Other substitutes range from 1.45V to 1.95V.

Q: Can I use these parts interchangeably in existing designs? A: Yes, all substitute parts are pin-compatible in TO-92-3 packages and meet or exceed the EC103MAP electrical specifications. No PCB modifications are required. Verify that your application does not depend on specific gate trigger current or on-state voltage characteristics that differ significantly from the EC103MAP.