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ES1ALHMQG Equivalent & Substitute Parts Reference
Part Overview
The ES1ALHMQG by Taiwan Semiconductor Corporation is a fast recovery, general-purpose rectifier diode designed for automotive applications. It operates up to 50 V reverse voltage and 1 A average rectified current in a surface mount Sub SMA (DO-219AB) package. The device is ROHS3 Compliant, AEC-Q101 qualified, and has an operating junction temperature range of -55°C to 150°C. Sourcing equivalent models ensures continuity of supply, aids in lifecycle management, and maintains production schedules in case of inventory shortages or supply chain disruptions.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | ES1ALHMQG |
| Category | Diodes, Rectifiers |
| Voltage - DC Reverse (Vr) (Max) | 50 V |
| Current - Average Rectified (Io) | 1A |
| Voltage - Forward (Vf) (Max) @ If | 950 mV @ 1 A |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | 35 ns |
| Current - Reverse Leakage @ Vr | 5 µA @ 50 V |
| Capacitance @ Vr, F | 10pF @ 4V, 1MHz |
| Mounting Type | Surface Mount |
| Package / Case | DO-219AB |
| Supplier Device Package | Sub SMA |
| Operating Temperature - Junction | -55°C ~ 150°C |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitution is determined exclusively by matching the following parameters: maximum reverse voltage (Vr), average rectified current (Io), forward voltage (Vf) at specified current, speed classification, reverse recovery time (trr), maximum reverse leakage current, capacitance, mounting type, package/case, operating temperature range, RoHS status, MSL, REACH status, and compliance with automotive qualifications if specified. Only components satisfying these parameters qualify as substitutes for the ES1ALHMQG in the Diodes, Rectifiers category.
Parameter Comparison
| Parameter | ES1ALHMQG | HS1AL RVG |
|---|---|---|
| Manufacturer | Taiwan Semiconductor Corporation | Taiwan Semiconductor Corporation |
| Category | Diodes, Rectifiers | Diodes, Rectifiers |
| Voltage - DC Reverse (Vr) (Max) | 50 V | 50 V |
| Current - Average Rectified (Io) | 1A | 1A |
| Voltage - Forward (Vf) (Max) @ If | 950 mV @ 1 A | 950 mV @ 1 A |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | 35 ns | 50 ns |
| Current - Reverse Leakage @ Vr | 5 µA @ 50 V | 5 µA @ 50 V |
| Capacitance @ Vr, F | 10pF @ 4V, 1MHz | 20pF @ 4V, 1MHz |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | DO-219AB | DO-219AB |
| Supplier Device Package | Sub SMA | Sub SMA |
| Operating Temperature - Junction | -55°C ~ 150°C | -55°C ~ 150°C |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
Selection between ES1ALHMQG and the substitute HS1AL RVG can be made based on active product status, ROHS3 compliance, unrestricted Moisture Sensitivity Level (MSL 1), and REACH unaffected status. Both options are listed as active and in stock, facilitating direct replacement in applications demanding environmental and regulatory conformity.
Frequently Asked Questions (FAQ)
Q1: What is the most critical parameter when selecting an equivalent for ES1ALHMQG?
A1: The most critical parameters are voltage rating, average rectified current, reverse recovery time, packaging, and compliance with specified standards.
Q2: Are HS1AL RVG and ES1ALHMQG mechanically interchangeable?
A2: Both diodes use the DO-219AB (Sub SMA) package and support surface mount configuration.
Q3: Do both diodes comply with environmental and safety regulations?
A3: Both devices are ROHS3 Compliant, REACH Unaffected, and listed as MSL 1 (unlimited storage life).
Q4: Is there any difference in speed or capacitance values?
A4: The reverse recovery time for HS1AL RVG is 50 ns compared to 35 ns for ES1ALHMQG, and the capacitance is 20pF for HS1AL RVG versus 10pF for ES1ALHMQG.
Q5: Are both parts AEC-Q101 qualified?
A5: AEC-Q101 qualification is specified for ES1ALHMQG. The qualification is not stated for HS1AL RVG in the provided parameters.
Q6: Can these parts be directly substituted on an existing PCB design?
A6: Both parts are in DO-219AB Sub SMA package, supporting direct mechanical and solder compatibility.
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