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ES1G-TP Equivalent & Substitute Parts
Part Overview
The ES1G-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 400 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (HSMA) package. This part is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with comparable or enhanced performance characteristics within the same application category.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - DC Reverse (Vr) (Max) | 400 | V |
| Current - Average Rectified (Io) | 1 | A |
| Voltage - Forward (Vf) (Max) @ If | 1.35 V @ 1 A | V |
| Speed | Fast Recovery ≤ 500ns, > 200mA (Io) | — |
| Reverse Recovery Time (trr) | 75 | ns |
| Current - Reverse Leakage @ Vr | 5 | µA @ 400 V |
| Mounting Type | Surface Mount | — |
| Package / Case | DO-214AC, SMA | — |
| Operating Temperature - Junction | -50 to 150 | °C |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the ES1G-TP is determined by the following critical parameters:
Mandatory Matching Criteria:
- Voltage - DC Reverse (Vr) (Max): 400 V
- Current - Average Rectified (Io): 1 A minimum
- Mounting Type: Surface Mount
- Package / Case: DO-214AC or compatible SMA variant
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level: 1 (Unlimited)
Performance Characteristics:
- Voltage - Forward (Vf) (Max) @ If: ≤ 1.35 V @ 1 A
- Speed: Fast Recovery ≤ 500ns or Standard Recovery > 500ns
- Reverse Recovery Time (trr): ≤ 75 ns (fast recovery) or ≤ 2 µs (standard recovery)
- Current - Reverse Leakage @ Vr: ≤ 5 µA @ 400 V
Substitute parts are classified into two categories: Direct Equivalents maintain identical electrical specifications and packaging, while Similar Alternatives provide equivalent voltage and current ratings with variations in recovery characteristics, forward voltage, or package configuration that remain functionally compatible within the application envelope.
Parameter Comparison
| Part Number | Manufacturer | Vr (Max) [V] | Io [A] | Vf (Max) @ 1A [V] | Speed | trr [ns/µs] | Package | Status |
|---|---|---|---|---|---|---|---|---|
| ES1G-TP | Micro Commercial Co | 400 | 1 | 1.35 | Fast Recovery ≤ 500ns | 75 ns | DO-214AC (HSMA) | Obsolete |
| ES1G-LTP | Micro Commercial Co | 400 | 1 | 1.25 | Fast Recovery ≤ 500ns | 35 ns | DO-214AC (SMA) | Active |
| MURA140T3G | onsemi | 400 | 2 | 1.1 | Fast Recovery ≤ 500ns | 65 ns | DO-214AC (SMA) | Active |
| CGRA4004-G | Comchip Technology | 400 | 1 | 1.1 | Standard Recovery > 500ns | — | DO-214AC (SMA) | Active |
| ES1G | Good-Ark Semiconductor | 400 | 1 | 1.3 | Fast Recovery ≤ 500ns | 35 ns | DO-214AC (SMA) | Active |
| ES1G-13-F | Diodes Incorporated | 400 | 1 | 1.25 | Fast Recovery ≤ 500ns | 25 ns | DO-214AC (SMA) | Active |
| GF1G | onsemi | 400 | 1 | 1.0 | Standard Recovery > 500ns | 2 µs | DO-214AC (SMA) | Not For New Designs |
| GF1G-E3/5CA | Vishay General Semiconductor | 400 | 1 | 1.1 | Standard Recovery > 500ns | 2 µs | DO-214BA (GF1) | Active |
| GF1G-E3/67A | Vishay General Semiconductor | 400 | 1 | 1.1 | Standard Recovery > 500ns | 2 µs | DO-214BA (GF1) | Active |
| MRA4004T3G | onsemi | 400 | 1 | 1.1 | Standard Recovery > 500ns | — | DO-214AC (SMA) | Not For New Designs |
| NRVA4004T3G | onsemi | 400 | 1 | 1.1 | Standard Recovery > 500ns | — | DO-214AC (SMA) | Not For New Designs |
Engineering Selection Recommendations
Direct Equivalent (Recommended Primary Substitute):
ES1G-LTP (Micro Commercial Co) is the direct equivalent replacement for ES1G-TP. Both parts share the same manufacturer base product number (ES1G), identical voltage and current ratings (400 V, 1 A), and compatible DO-214AC SMA packaging. ES1G-LTP is in active production status with superior performance characteristics: lower forward voltage (1.25 V vs. 1.35 V), faster recovery time (35 ns vs. 75 ns), and extended operating temperature range (-65°C to 175°C vs. -50°C to 150°C). Both parts maintain ROHS3 compliance and MSL 1 rating.
Active Production Alternatives (Fast Recovery):
ES1G-13-F (Diodes Incorporated) and ES1G (Good-Ark Semiconductor) provide fast recovery performance with 1 A current rating and 400 V voltage rating. ES1G-13-F offers the fastest recovery time (25 ns) and is in active production. Both maintain full compliance with RoHS3 and MSL 1 specifications.
Active Production Alternatives (Standard Recovery):
CGRA4004-G (Comchip Technology), GF1G-E3/5CA, and GF1G-E3/67A (Vishay General Semiconductor) provide standard recovery characteristics with 1 A current rating and 400 V voltage rating. These parts are in active production status and suitable for applications where recovery speed is not a critical constraint. Vishay parts are designated as SUPERECTIFIER® series.
Higher Current Alternative:
MURA140T3G (onsemi) provides 2 A current rating at 400 V with fast recovery characteristics (65 ns). This part is suitable for applications requiring higher current capacity while maintaining the same voltage specification.
Obsolete Status Parts (Not Recommended for New Designs):
GF1G, MRA4004T3G, and NRVA4004T3G are designated as "Not For New Designs" or obsolete. These parts should not be selected for new circuit designs. NRVA4004T3G carries automotive qualification (AEC-Q101) and may be retained only for existing automotive applications requiring this certification.
Frequently Asked Questions (FAQ)
Q: Can ES1G-LTP directly replace ES1G-TP in existing designs?
A: Yes. ES1G-LTP is the direct equivalent with identical voltage (400 V) and current (1 A) ratings, compatible DO-214AC SMA packaging, and superior performance characteristics. The lower forward voltage and faster recovery time present no compatibility issues and improve circuit performance.
Q: What is the difference between fast recovery and standard recovery diodes?
A: Fast recovery diodes have reverse recovery times ≤ 500 ns (ES1G-TP: 75 ns), while standard recovery diodes exceed 500 ns (GF1G: 2 µs). Fast recovery diodes are preferred in high-frequency switching applications to minimize switching losses and electromagnetic interference. Standard recovery diodes are suitable for lower-frequency rectification applications.
Q: Can I use MURA140T3G (2 A) instead of ES1G-TP (1 A)?
A: Yes, with circuit verification. MURA140T3G maintains the same 400 V voltage rating and provides double the current capacity (2 A vs. 1 A). The lower forward voltage (1.1 V vs. 1.35 V) and faster recovery time (65 ns vs. 75 ns) are advantageous. Verify that the higher current rating does not introduce unintended circuit behavior in current-limiting applications.
Q: Are there package compatibility issues between DO-214AC (HSMA) and DO-214AC (SMA)?
A: Both designations refer to the same DO-214AC package footprint. HSMA and SMA are supplier-specific package identifiers for the same physical form factor. All listed substitutes with DO-214AC or SMA designation are mechanically and electrically compatible.
Q: Why should I avoid GF1G, MRA4004T3G, and NRVA4004T3G?
A: These parts are designated as "Not For New Designs" or obsolete by their manufacturers. While functionally compatible, they are no longer recommended for new circuit development. Active production alternatives provide superior availability, support, and performance characteristics.
Q: What is the significance of the NRVA4004T3G automotive qualification?
A: NRVA4004T3G carries AEC-Q101 automotive qualification, indicating compliance with automotive industry reliability and testing standards. This part is retained only for existing automotive applications requiring this specific certification. For new automotive designs, select active production alternatives with appropriate automotive qualification.
Q: How do forward voltage differences affect circuit design?
A: Forward voltage (Vf) determines the voltage drop across the diode during conduction. ES1G-TP specifies 1.35 V @ 1 A, while alternatives range from 1.0 V to 1.3 V. Lower forward voltage reduces power dissipation and heat generation. In precision rectification circuits, verify that the selected part's forward voltage remains within the application's tolerance band.
Q: Can I use standard recovery diodes in high-frequency switching applications?
A: Standard recovery diodes (trr > 500 ns) are not recommended for high-frequency switching applications. The extended recovery time increases switching losses, generates electromagnetic interference, and may cause circuit instability. Fast recovery diodes (trr ≤ 500 ns) are required for switching frequencies above approximately 100 kHz.
Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?
A: MSL 1 indicates the lowest moisture sensitivity level. Parts with MSL 1 require no special moisture control during storage, handling, or assembly. Standard warehouse conditions and standard PCB assembly processes are acceptable without additional precautions.
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