ES1AL MQG Equivalent & Substitute Parts

Part Overview

The ES1AL MQG is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 50 V DC reverse voltage and 1 A average rectified current. This surface mount component operates across a junction temperature range of -55°C to 150°C and features fast recovery characteristics with a reverse recovery time of 35 nanoseconds. The device is classified as Active product status and maintains full RoHS3 compliance with unlimited moisture sensitivity level (MSL 1).

Substitute parts become necessary when the primary part number experiences inventory constraints, extended lead times, or when design flexibility permits selection from qualified alternatives that meet identical electrical and mechanical specifications.

Substiute Parts

ES1AL MQG

Taiwan Semiconductor CorporationIn Stock: 744ES1AL MQG Datasheet

Current PartRFQ

HS1AL RVG

Taiwan Semiconductor CorporationIn Stock: 2578HS1AL RVG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ES1AL MQG is determined by strict equivalence across the following critical parameters:

Mandatory Matching Criteria:

• Voltage - DC Reverse (Vr) (Max): 50 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 950 mV @ 1 A
• Package / Case: DO-219AB
• Mounting Type: Surface Mount
• Operating Temperature - Junction: -55°C to 150°C
• RoHS Status: ROHS3 Compliant

Allowable Parameter Variance: Reverse recovery time (trr) and capacitance values may vary within the fast recovery classification (≤500 ns for currents >200 mA) without affecting functional compatibility. Reverse leakage current remains constant at 5 µA @ 50 V across all qualified substitutes.

The HS1AL RVG meets all mandatory matching criteria and qualifies as a parametric equivalent substitute for the ES1AL MQG.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: ES1AL MQG The ES1AL MQG is the specified component with Active product status and 694 units in current inventory. This part maintains full compliance with RoHS3 and REACH regulations and is suitable for immediate deployment in production applications.

Substitute Part: HS1AL RVG The HS1AL RVG qualifies as a direct parametric equivalent with Active product status and significantly higher inventory availability (2549 units). This substitute maintains identical electrical ratings, package configuration, and regulatory compliance. The HS1AL RVG exhibits a reverse recovery time of 50 nanoseconds compared to 35 nanoseconds in the primary part; both values remain within the fast recovery classification and do not affect functional performance in standard rectification applications. Capacitance measurement conditions differ (20 pF @ 4V versus 10 pF @ 1V), but both values fall within acceptable operating ranges for this device category.

Selection between ES1AL MQG and HS1AL RVG depends on availability requirements and lead time constraints. Both parts are functionally interchangeable within the specified electrical and thermal operating envelope.

Frequently Asked Questions (FAQ)

Q: Can the HS1AL RVG replace the ES1AL MQG in existing designs?

A: Yes. The HS1AL RVG meets all mandatory electrical specifications, operates across the identical temperature range, and uses the same DO-219AB package configuration. Both components are surface mount devices with matching voltage and current ratings.

Q: What is the significance of the different reverse recovery times (35 ns vs. 50 ns)?

A: Both values classify as fast recovery diodes (≤500 ns for currents >200 mA). The difference does not affect performance in standard rectification circuits. Applications requiring specific switching speed characteristics should reference the detailed circuit requirements.

Q: Are there packaging differences between these parts?

A: Both the ES1AL MQG and HS1AL RVG use the DO-219AB package and surface mount configuration. The HS1AL RVG is supplied in Cut Tape (CT) packaging, while the ES1AL MQG packaging format is not specified in the provided data. Both are compatible with standard surface mount assembly processes.

Q: Do both parts meet regulatory requirements?

A: Yes. Both the ES1AL MQG and HS1AL RVG are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings. Both parts satisfy identical regulatory and environmental compliance standards.

Q: What is the difference in capacitance specifications?

A: The ES1AL MQG specifies 10 pF @ 1V, 1MHz, while the HS1AL RVG specifies 20 pF @ 4V, 1MHz. These measurements are taken at different bias voltages. Both values are within acceptable ranges for this diode category and do not impact standard rectification applications.

Q: Which part should be selected for new designs?

A: Selection depends on availability and lead time requirements. Both parts are Active status components with identical electrical performance. The HS1AL RVG offers higher inventory availability (2549 units versus 694 units).