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Equivalent & Substitute Parts for 6A1-TP
Part Overview
The 6A1-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 100V DC reverse voltage and 6A average rectified current in an R-6 axial through-hole package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent and substitute parts is necessary for legacy system maintenance, repair applications, and designs requiring similar electrical performance characteristics.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - DC Reverse (Vr) (Max) | 100 | V |
| Current - Average Rectified (Io) | 6 | A |
| Voltage - Forward (Vf) (Max) @ If | 950 mV @ 6 A | mV @ A |
| Speed | Standard Recovery >500ns, > 200mA (Io) | - |
| Current - Reverse Leakage @ Vr | 10 | µA @ 100 V |
| Mounting Type | Through Hole | - |
| Package / Case | R-6, Axial | - |
| Operating Temperature - Junction | -55°C ~ 125°C | °C |
| RoHS Status | ROHS3 Compliant | - |
Substitute Part Grouping Explanation
Substitute parts for the 6A1-TP are grouped into two categories based on electrical and mechanical compatibility:
Category 1: Direct Electrical Equivalents (Diode Rectifiers)
Direct substitutes maintain identical or superior electrical specifications: 100V DC reverse voltage rating, 6A average rectified current capacity, standard recovery speed characteristics, and through-hole axial mounting. These parts are functionally interchangeable in applications where the 6A1-TP was originally specified.
Key parameters for equivalence:
- Voltage - DC Reverse (Vr) (Max): 100V
- Current - Average Rectified (Io): 6A
- Speed: Standard Recovery >500ns
- Mounting Type: Through Hole
- Package compatibility: R-6 or P600 axial packages
Category 2: Partial Electrical Equivalents (Lower Current Rating)
These parts meet the voltage specification but provide reduced current capacity (1.3A to 3A). Selection requires circuit analysis to confirm adequate current margin.
Key parameters for partial equivalence:
- Voltage - DC Reverse (Vr) (Max): 100V
- Current - Average Rectified (Io): 1.3A to 3A
- Mounting Type: Through Hole
- Package: Axial
Parameter Comparison
| Part Number | Manufacturer | Vr (Max) [V] | Io [A] | Vf (Max) @ If [mV @ A] | Speed | Package | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|
| 6A1-TP | Micro Commercial Co | 100 | 6 | 950 @ 6 | Standard Recovery >500ns | R-6, Axial | Not For New Designs | ROHS3 Compliant |
| 6A01B-G | Comchip Technology | 100 | 6 | 1000 @ 6 | Standard Recovery >500ns | R-6, Axial | Active | ROHS3 Compliant |
| GI751-E3/73 | Vishay General Semiconductor - Diodes Division | 100 | 6 | 900 @ 6 | Standard Recovery >500ns | P600, Axial | Active | ROHS3 Compliant |
| GI751-E3/54 | Vishay General Semiconductor - Diodes Division | 100 | 6 | 900 @ 6 | Standard Recovery >500ns | P600, Axial | Active | ROHS3 Compliant |
| 1N5809 | Microchip Technology | 100 | 3 | 875 @ 4 | Fast Recovery ≤500ns | B, Axial | Active | RoHS non-compliant |
| 1N6077 | Microchip Technology | 100 | 1.3 | 1760 @ 18.8 | Fast Recovery ≤500ns | A, Axial | Active | RoHS non-compliant |
Engineering Selection Recommendations
Primary Substitutes (Full Electrical Equivalence)
The 6A01B-G (Comchip Technology) and GI751-E3/73 or GI751-E3/54 (Vishay General Semiconductor) are recommended as primary substitutes. All three parts maintain the 100V/6A electrical specification with standard recovery speed characteristics. The 6A01B-G preserves the R-6 package format for direct mechanical compatibility. The Vishay GI751 series uses the P600 package, which requires PCB layout verification but provides superior availability (5,912 to 21,923 units in stock versus 714 units for 6A01B-G). All three options are ROHS3 compliant and carry Active product status.
Secondary Substitutes (Reduced Current Rating)
The 1N5809 (Microchip Technology) provides 100V rating with 3A current capacity and fast recovery characteristics. This part is suitable only for applications where circuit analysis confirms that 3A maximum current is adequate. The 1N5809 is not ROHS3 compliant. The 1N6077 (Microchip Technology) provides 100V rating with 1.3A current capacity and is not recommended for applications requiring the full 6A specification.
Compliance Considerations
All recommended primary substitutes (6A01B-G, GI751-E3/73, GI751-E3/54) maintain ROHS3 compliance and Active product status, ensuring long-term availability and regulatory alignment. Secondary substitutes (1N5809, 1N6077) are RoHS non-compliant and should be selected only when legacy system constraints require their use.
Frequently Asked Questions (FAQ)
Q: Can the 6A01B-G directly replace the 6A1-TP without PCB modifications?
A: Yes. The 6A01B-G maintains identical electrical specifications (100V, 6A, standard recovery) and uses the same R-6 axial through-hole package. No PCB layout changes are required.
Q: What is the difference between the R-6 and P600 packages?
A: Both are axial through-hole packages for rectifier diodes. The R-6 and P600 packages differ in physical dimensions and lead spacing. Vishay GI751 series parts use P600 packaging. PCB hole spacing and lead length must be verified before substitution to ensure mechanical fit.
Q: Why is the 1N5809 listed as a substitute if it only provides 3A current?
A: The 1N5809 is listed as a partial substitute for applications where circuit analysis confirms that maximum current requirements do not exceed 3A. It maintains the 100V voltage specification. Full 6A applications require the primary substitutes (6A01B-G or GI751 series).
Q: Are the Vishay GI751-E3/73 and GI751-E3/54 electrically identical?
A: Yes. Both parts are rated for 100V, 6A, with 900mV forward voltage drop at 6A, standard recovery speed, and P600 axial packaging. They are functionally equivalent and interchangeable.
Q: What is the significance of "Not For New Designs" status on the 6A1-TP?
A: This designation indicates the part has reached end-of-life and is no longer recommended for new circuit designs. Existing inventory may be available for legacy system support, but new designs should specify active-status alternatives such as 6A01B-G or GI751 series parts.
Q: Does forward voltage drop affect circuit performance when substituting?
A: Forward voltage drop differences are minor across recommended substitutes (900mV to 1000mV at 6A). For most general-purpose rectification applications, these variations are within acceptable tolerance. Applications with tight voltage regulation requirements should verify forward voltage specifications against circuit design margins.
Q: Can MOSFETs listed in the substitute data replace the 6A1-TP diode?
A: No. MOSFETs (ZXMN6A11DN8TA, ZXMP6A16DN8TC, ZXMP6A17DN8TA, ZXMP6A17E6TA, ZXMN6A11GTA) are active semiconductor switches with fundamentally different operational characteristics than passive rectifier diodes. These parts cannot function as direct replacements in rectification circuits.
Q: What inventory levels should be considered when selecting a substitute?
A: GI751-E3/73 offers the highest inventory availability (5,912 units), followed by GI751-E3/54 (21,923 units). The 6A01B-G provides lower availability (714 units). For high-volume production or long-term support, Vishay GI751 series parts offer superior supply chain security.
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