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GS1K-TP Equivalent & Substitute Parts
Part Overview
The GS1K-TP is a general-purpose rectifier diode rated for 800 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (HSMA) package. Manufactured by Micro Commercial Co, this component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent alternatives for ongoing production and repair applications. The part operates across a junction temperature range of -55°C to 150°C and complies with RoHS3 and REACH requirements.
Substitute parts must maintain electrical equivalence across voltage, current, and thermal specifications while accommodating package variations and manufacturing source changes.
Substiute Parts
Key Parameters
| Parameter | GS1K-TP Value | Unit |
|---|---|---|
| Voltage - DC Reverse (Vr) (Max) | 800 | V |
| Current - Average Rectified (Io) | 1 | A |
| Voltage - Forward (Vf) (Max) @ If | 1.1 @ 1 | V @ A |
| Current - Reverse Leakage @ Vr | 10 | µA @ 800 V |
| Capacitance @ Vr, F | 15 | pF @ 4V, 1MHz |
| Operating Temperature - Junction | -55 to 150 | °C |
| Mounting Type | Surface Mount | - |
| Package / Case | DO-214AC, SMA | - |
| Technology | Standard | - |
| Speed | Standard Recovery >500ns, > 200mA (Io) | - |
| RoHS Status | ROHS3 Compliant | - |
Substitute Part Grouping Explanation
Substitution logic for the GS1K-TP is based on the following critical parameters:
Electrical Equivalence Requirements:
- Voltage - DC Reverse (Vr) (Max): 800 V minimum
- Current - Average Rectified (Io): 1 A minimum
- Voltage - Forward (Vf) (Max) @ If: 1.1 V to 1.3 V @ 1 A acceptable range
- Current - Reverse Leakage @ Vr: 5 µA to 10 µA @ rated voltage
- Operating Temperature - Junction: -55°C minimum to 150°C maximum
Package Compatibility:
- Primary: DO-214AC (SMA) surface mount package
- Alternative: DO-214BA (GF1) surface mount package (different footprint, requires PCB layout verification)
Technology Classification:
- Standard Recovery (>500ns) or Fast Recovery (≤500ns) acceptable
Compliance Requirements:
- RoHS3 Compliant
- REACH Unaffected
Substitute parts are grouped into two categories: direct replacements maintaining identical package specifications, and functional equivalents with alternative package geometries that require design verification.
Parameter Comparison
| Parameter | GS1K-TP | GS1K-LTP | CFRA106-G | CGRA4006-G | GF1K-E3/67A | MRA4006T3G | RGF1K | RGF1K-E3/67A |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Micro Commercial Co | Micro Commercial Co | Comchip Technology | Comchip Technology | Vishay | onsemi | onsemi | Vishay |
| Voltage - DC Reverse (Vr) (Max) | 800 V | 800 V | 800 V | 800 V | 800 V | 800 V | 800 V | 800 V |
| Current - Average Rectified (Io) | 1 A | 1 A | 1 A | 1 A | 1 A | 1 A | 1 A | 1 A |
| Voltage - Forward (Vf) (Max) @ If | 1.1 V @ 1 A | 1.0 V @ 1 A | 1.3 V @ 1 A | 1.1 V @ 1 A | 1.2 V @ 1 A | 1.1 V @ 1 A | 1.3 V @ 1 A | 1.3 V @ 1 A |
| Current - Reverse Leakage @ Vr | 10 µA @ 800 V | 10 µA @ 800 V | 5 µA @ 800 V | 5 µA @ 800 V | 5 µA @ 800 V | 10 µA @ 800 V | 5 µA @ 800 V | 5 µA @ 800 V |
| Capacitance @ Vr, F | 15 pF @ 4V, 1MHz | 15 pF @ 4V, 1MHz | - | - | 15 pF @ 4V, 1MHz | - | 8.5 pF @ 4V, 1MHz | 8.5 pF @ 4V, 1MHz |
| Operating Temperature - Junction | -55 to 150°C | -55 to 150°C | 150°C (Max) | -55 to 150°C | -65 to 175°C | -55 to 175°C | -65 to 175°C | -65 to 175°C |
| Speed | Standard Recovery >500ns | Standard Recovery >500ns | Fast Recovery ≤500ns | Fast Recovery ≤500ns | Standard Recovery >500ns | Standard Recovery >500ns | Fast Recovery ≤500ns | Fast Recovery ≤500ns |
| Package / Case | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA | DO-214BA | DO-214AC, SMA | DO-214AC, SMA | DO-214BA |
| Product Status | Discontinued at DiGi Electronics | Active | Active | Active | Active | Not For New Designs | Not For New Designs | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Substitutes (Active Product Status, Identical Package):
GS1K-LTP is the direct replacement for GS1K-TP. Both are manufactured by Micro Commercial Co with identical electrical specifications and DO-214AC (SMA) package geometry. GS1K-LTP maintains active product status with 8,458 units in stock, ensuring supply continuity. Forward voltage is improved at 1.0 V versus 1.1 V, providing superior thermal performance. Moisture Sensitivity Level (MSL) rating of 1 (Unlimited) supports extended storage without desiccant requirements.
CGRA4006-G (Comchip Technology) and CFRA106-G (Comchip Technology) are functionally equivalent alternatives in DO-214AC (SMA) package. CGRA4006-G matches the forward voltage specification at 1.1 V and maintains standard recovery characteristics. CFRA106-G exhibits fast recovery behavior (≤500ns) with 1.3 V forward voltage, suitable for applications tolerating higher forward drop. Both maintain active product status with substantial inventory availability.
Secondary Substitutes (Alternative Package, Active Status):
GF1K-E3/67A (Vishay) and RGF1K-E3/67A (Vishay) provide electrical equivalence in DO-214BA (GF1) package format. These components require PCB layout modification due to different footprint geometry. GF1K-E3/67A operates with standard recovery characteristics and 1.2 V forward voltage. RGF1K-E3/67A exhibits fast recovery behavior with 1.3 V forward voltage and reduced capacitance (8.5 pF). Both maintain active product status and extended temperature range (-65°C to 175°C).
Not Recommended for New Designs:
MRA4006T3G (onsemi) and RGF1K (onsemi) carry "Not For New Designs" product status designation. While electrically compatible, these components should not be selected for new circuit development. Existing designs utilizing these parts may continue procurement through available inventory.
Frequently Asked Questions (FAQ)
Q: Can GS1K-LTP directly replace GS1K-TP without PCB modification?
A: Yes. GS1K-LTP maintains identical DO-214AC (SMA) package geometry and electrical specifications. No PCB layout changes are required. The component is a direct pin-for-pin and footprint-compatible substitute.
Q: What is the difference between DO-214AC and DO-214BA packages?
A: DO-214AC and DO-214BA are distinct surface mount package geometries with different footprint dimensions and lead configurations. Components in DO-214BA package (GF1K-E3/67A, RGF1K-E3/67A) require PCB layout verification and potential redesign before implementation. Direct physical substitution on existing PCBs is not possible.
Q: Are fast recovery diodes (CFRA106-G, CGRA4006-G, RGF1K, RGF1K-E3/67A) suitable replacements for the standard recovery GS1K-TP?
A: Fast recovery diodes are electrically compatible with standard recovery specifications. The reduced reverse recovery time (500 ns versus >500 ns) provides improved switching performance and reduced electromagnetic interference. Forward voltage may be elevated (1.3 V versus 1.1 V), increasing power dissipation. Application-specific thermal analysis is required to confirm suitability.
Q: What does "Not For New Designs" product status mean?
A: Components designated "Not For New Designs" are in mature or end-of-life phases. While functionally operational and available through existing inventory, manufacturers do not recommend their selection for new circuit development. Existing designs may continue using these parts through available stock, but new designs should select components with "Active" product status.
Q: How do forward voltage differences affect circuit performance?
A: Forward voltage (Vf) directly impacts power dissipation and voltage drop across the diode during conduction. GS1K-LTP at 1.0 V dissipates less power than GS1K-TP at 1.1 V. Conversely, fast recovery alternatives at 1.3 V increase power dissipation. Circuit design must account for these differences in thermal management and voltage regulation calculations.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All substitute parts listed maintain RoHS3 compliance and REACH Unaffected status, meeting regulatory requirements for electronic component procurement in regulated markets.
Q: What is Moisture Sensitivity Level (MSL) and why does it matter?
A: MSL rating indicates the maximum time a component can be stored at room temperature without desiccant protection before moisture absorption degrades performance. MSL 1 (Unlimited) rating on GS1K-LTP and other substitutes permits indefinite storage without special moisture control, simplifying inventory management.
Q: Can I use a 1000 V rated diode (GF1M-E3/67A, GF1M) as a substitute for the 800 V GS1K-TP?
A: Higher voltage ratings are not direct substitutes. While 1000 V diodes operate safely at 800 V, they introduce unnecessary cost and may exhibit different electrical characteristics (forward voltage, capacitance, leakage current) that affect circuit performance. Selection should match the specified 800 V rating.
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