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GS1A-TP General Purpose Rectifier Diode 50V 1A DO-214AC Equivalent & Substitute Parts
Part Overview
The GS1A-TP is a general purpose rectifier diode manufactured by Micro Commercial Co, rated for 50V reverse voltage and 1A average rectified current in a surface mount DO-214AC (SMA) package. This part is classified as Obsolete, which necessitates identification of active equivalent and substitute components for new designs and ongoing production support. The GS1A-TP operates across a junction temperature range of -55°C to 150°C and complies with ROHS3 standards. Current inventory of 1,097 pieces is available as new original stock.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - DC Reverse (Vr) Maximum | 50 | V |
| Current - Average Rectified (Io) | 1 | A |
| Voltage - Forward (Vf) Maximum @ If | 1.1 @ 1 | V @ A |
| Speed Classification | Standard Recovery >500ns, > 200mA (Io) | — |
| Current - Reverse Leakage @ Vr | 10 | µA @ 50V |
| Capacitance @ Vr, F | 15 | pF @ 4V, 1MHz |
| Package / Case | DO-214AC, SMA | — |
| Mounting Type | Surface Mount | — |
| Operating Temperature - Junction | -55 to 150 | °C |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the GS1A-TP is determined by strict equivalence across the following electrical and mechanical parameters:
Critical Substitution Parameters:
- Voltage - DC Reverse (Vr) Maximum: 50V
- Current - Average Rectified (Io): 1A
- Voltage - Forward (Vf) Maximum @ If: 1.1V @ 1A
- Speed Classification: Standard Recovery >500ns, > 200mA (Io)
- Package / Case: DO-214AC, SMA
- Mounting Type: Surface Mount
- Operating Temperature - Junction: -55°C to 150°C
All substitute parts listed maintain these core electrical specifications and physical package requirements. Variations in secondary parameters such as reverse leakage current, capacitance, and reverse recovery time do not disqualify a part from substitution provided the critical parameters remain within specification. Parts are grouped by manufacturer and product status to facilitate selection based on availability and design phase requirements.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Vr (Max) V | Io (A) | Vf (Max) @ If (V @ A) | Reverse Leakage @ Vr (µA) | Capacitance @ Vr, F (pF) | Product Status | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|
| GS1A-TP | Micro Commercial Co | 50 | 1 | 1.1 @ 1 | 10 @ 50V | 15 @ 4V, 1MHz | Obsolete | 1097 |
| ACGRA4001-HF | Comchip Technology | 50 | 1 | 1.1 @ 1 | 5 @ 50V | 2.5 @ 4V, 1MHz | Active | 1013 |
| CGRA4001-G | Comchip Technology | 50 | 1 | 1.1 @ 1 | 5 @ 50V | — | Active | 10226 |
| GS1AWG_R1_00001 | Panjit International Inc. | 50 | 1 | 1.1 @ 1 | 1 @ 50V | 7 @ 4V, 1MHz | Not For New Designs | 4435 |
| GS1A_R1_00001 | Panjit International Inc. | 50 | 1 | 1.1 @ 1 | 1 @ 50V | 12 @ 4V, 1MHz | Active | 7655 |
| S1A | YAGEO | 50 | 1 | 1.1 | — | — | Active | 4747 |
| S1A-E3/5AT | Vishay General Semiconductor - Diodes Division | 50 | 1 | 1.1 @ 1 | 1 @ 50V | 12 @ 4V, 1MHz | Active | 15282 |
| S1A-E3/61T | Vishay General Semiconductor - Diodes Division | 50 | 1 | 1.1 @ 1 | 1 @ 50V | 12 @ 4V, 1MHz | Active | 120800 |
| S1A-HF | Comchip Technology | 50 | 1 | 1.1 @ 1 | 5 @ 50V | — | Active | 1144 |
| S1A-M3/5AT | Vishay General Semiconductor - Diodes Division | 50 | 1 | 1.1 @ 1 | 1 @ 50V | 12 @ 4V, 1MHz | Active | 768 |
Engineering Selection Recommendations
For Active Production and New Designs:
Select from parts with Active product status to ensure long-term availability and manufacturer support. S1A-E3/61T (Vishay General Semiconductor - Diodes Division) offers the highest inventory level at 120,800 pieces and maintains full electrical equivalence to GS1A-TP. GS1A_R1_00001 (Panjit International Inc.) provides an alternative with 7,655 pieces in stock and Active status.
For Existing Inventory Replacement:
GS1A-TP (Obsolete status) can be directly replaced with any Active equivalent listed in the parameter comparison table. All listed substitutes maintain the critical electrical specifications: 50V reverse voltage, 1A average rectified current, 1.1V forward voltage at 1A, and standard recovery speed classification.
Compliance Considerations:
All substitute parts listed comply with ROHS3 standards and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original GS1A-TP specifications. REACH status is unaffected for all parts. ECCN classification is EAR99 across all equivalents.
Automotive and High-Reliability Applications:
ACGRA4001-HF (Comchip Technology) carries AEC-Q101 automotive qualification and is suitable for automotive-grade applications requiring enhanced reliability screening.
Frequently Asked Questions (FAQ)
Q: Can GS1A-TP be directly replaced with any part listed in the substitute table?
A: Yes. All parts in the parameter comparison table maintain the critical electrical specifications required for direct substitution: 50V reverse voltage, 1A average rectified current, 1.1V forward voltage at 1A, standard recovery speed, DO-214AC package, and surface mount configuration. Physical footprint and electrical performance are equivalent.
Q: What is the difference between parts with different reverse leakage current values?
A: Reverse leakage current values (ranging from 1 µA to 10 µA @ 50V in the listed substitutes) represent secondary performance characteristics. All values remain within acceptable limits for general purpose rectification. Selection based on reverse leakage is application-specific and does not affect basic substitution compatibility.
Q: Why is GS1A-TP marked as Obsolete?
A: Obsolete status indicates the manufacturer has discontinued production. Substitute parts with Active status are recommended for new designs and ongoing production to ensure continued availability and manufacturer support.
Q: Are there packaging differences between substitute parts?
A: All substitute parts use DO-214AC (SMA) surface mount package with identical physical dimensions and land pattern. No PCB redesign is required for substitution.
Q: Which substitute part should be selected for maximum inventory availability?
A: S1A-E3/61T (Vishay General Semiconductor - Diodes Division) provides the highest inventory level at 120,800 pieces while maintaining full electrical and mechanical equivalence to GS1A-TP.
Q: Can GS1A-TP be used in automotive applications?
A: GS1A-TP does not carry automotive qualification. For automotive applications, ACGRA4001-HF (Comchip Technology) is qualified to AEC-Q101 standard and is the appropriate selection.
Q: What is the significance of the "Not For New Designs" product status?
A: Parts marked "Not For New Designs" (such as GS1AWG_R1_00001) are electrically equivalent but should not be selected for new product development. These parts are suitable only for replacement in existing designs or legacy production support. Active status parts are preferred for all new designs.
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