ES1AL RQG Equivalent & Substitute Parts

Part Overview

The ES1AL RQG 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 in the Sub SMA package (DO-219AB) and is classified as a fast recovery diode with a reverse recovery time of 35 nanoseconds. The part maintains Active product status and is RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across critical parameters including voltage rating, current capacity, package type, and thermal operating range. This reference enables component selection flexibility for procurement, inventory management, and design continuity.

Substiute Parts

ES1AL RQG

Taiwan Semiconductor CorporationIn Stock: 952ES1AL RQG 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 RQG is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Voltage - DC Reverse (Vr) (Max): 50 V minimum
• Current - Average Rectified (Io): 1 A minimum
• Voltage - Forward (Vf) (Max) @ If: 950 mV or lower @ 1 A
• Operating Temperature - Junction: -55°C to 150°C minimum range

Mechanical Equivalence Requirements:

• Package / Case: DO-219AB (Sub SMA)
• Mounting Type: Surface Mount

Compliance Requirements:

• RoHS Status: ROHS3 Compliant
• Product Status: Active

The HS1AL RVG meets all substitution criteria. While reverse recovery time (trr) and junction capacitance differ from the main part, these variations remain within acceptable tolerances for general-purpose rectification applications and do not disqualify the substitute relationship.

Parameter Comparison

Engineering Selection Recommendations

ES1AL RQG Selection Criteria:

• Primary choice when reverse recovery time specification of 35 ns is required
• Preferred for applications with strict timing constraints in fast switching circuits
• Suitable for designs already qualified to this part number

HS1AL RVG Selection Criteria:

• Direct substitute when reverse recovery time tolerance extends to 50 ns
• Applicable for general-purpose rectification where trr variation does not impact circuit performance
• Acceptable alternative when ES1AL RQG inventory is unavailable
• Both parts maintain identical voltage, current, and thermal ratings

Compliance Verification: Both parts carry Active product status, ROHS3 compliance, and REACH Unaffected designation. Both operate across the identical temperature range (-55°C to 150°C junction temperature) and share the same DO-219AB package footprint. Selection between these parts does not introduce compliance or thermal management concerns.

Frequently Asked Questions (FAQ)

Q: Can HS1AL RVG replace ES1AL RQG in all applications?

A: HS1AL RVG is electrically and mechanically compatible with ES1AL RQG for applications where the reverse recovery time specification of 50 ns (versus 35 ns) is acceptable. Both parts share identical voltage ratings (50 V), current ratings (1 A), forward voltage drop (950 mV @ 1 A), and package type (DO-219AB Sub SMA). Substitution is valid when circuit design does not require the faster 35 ns recovery time of the ES1AL RQG.

Q: Are there package differences between these parts?

A: Both ES1AL RQG and HS1AL RVG use the DO-219AB package (Sub SMA) with surface mount technology. Packaging is identical, and both parts are suitable for the same PCB footprint and reflow soldering processes. The only packaging difference is the supplier delivery format: ES1AL RQG is supplied in standard packaging, while HS1AL RVG is supplied in Cut Tape (CT) format.

Q: Do these parts have different thermal operating ranges?

A: No. Both ES1AL RQG and HS1AL RVG operate across the identical junction temperature range of -55°C to 150°C. Thermal management requirements and derating curves are equivalent between the two parts.

Q: What is the significance of the 15 ns difference in reverse recovery time?

A: The ES1AL RQG features a reverse recovery time of 35 ns, while the HS1AL RVG has a reverse recovery time of 50 ns. This 15 ns difference affects switching speed in high-frequency applications. The ES1AL RQG is faster and preferred for circuits requiring rapid diode turn-off. The HS1AL RVG is suitable for applications where this additional recovery time does not degrade circuit performance.

Q: Are both parts RoHS3 compliant?

A: Yes. Both ES1AL RQG and HS1AL RVG are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating and REACH Unaffected status. Both parts meet current environmental and regulatory requirements for electronic component manufacturing and use.

Q: Can I use HS1AL RVG if ES1AL RQG is out of stock?

A: Yes, provided your circuit design tolerates the 50 ns reverse recovery time of the HS1AL RVG. Both parts are electrically equivalent across voltage, current, and forward voltage specifications. Verify that the application does not require the faster switching characteristics of the ES1AL RQG before implementing the substitution.