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BA159G R1G Equivalent & Substitute Parts
Part Overview
The BA159G R1G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 1000 V DC reverse voltage and 1 A average rectified current in a DO-204AL (DO-41) through-hole axial package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain electrical and mechanical compatibility for existing designs and production requirements.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - DC Reverse (Vr) (Max) | 1000 | V |
| Current - Average Rectified (Io) | 1 | A |
| Voltage - Forward (Vf) (Max) @ If | 1.2 | V @ 1 A |
| Reverse Recovery Time (trr) | 250 | ns |
| Current - Reverse Leakage @ Vr | 5 | µA @ 1000 V |
| Capacitance @ Vr, F | 15 | pF @ 4V, 1MHz |
| Package / Case | DO-204AL, DO-41, Axial | — |
| Mounting Type | Through Hole | — |
| Operating Temperature - Junction | -55 to 150 | °C |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitution of the BA159G R1G is determined by strict equivalence in the following electrical and mechanical parameters:
Critical Substitution Criteria:
- Voltage - DC Reverse (Vr) (Max): 1000 V minimum
- Current - Average Rectified (Io): 1 A minimum
- Package / Case: DO-204AL, DO-41, or Axial equivalent
- Mounting Type: Through Hole
- Current - Reverse Leakage @ Vr: 5 µA @ 1000 V maximum
- Operating Temperature Range: Must encompass -55°C to 150°C or equivalent
Substitution Categories:
Direct Equivalents maintain identical electrical specifications and packaging. These parts are pin-for-pin compatible and require no circuit modifications.
Compatible Alternatives meet or exceed all critical electrical parameters and use the same through-hole axial package. Forward voltage and recovery time characteristics may differ within acceptable ranges for general-purpose rectification applications.
All substitute parts listed are ROHS3 compliant, have MSL rating of 1 (Unlimited), and are REACH unaffected, matching the compliance profile of the original part.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Vr (Max) [V] | Io [A] | Vf (Max) @ If [V] | trr [ns] | Ir @ Vr [µA] | Package | Temp Range [°C] | Product Status |
|---|---|---|---|---|---|---|---|---|---|
| BA159G R1G | Taiwan Semiconductor Corporation | 1000 | 1 | 1.2 @ 1 A | 250 | 5 @ 1000 V | DO-204AL (DO-41) | -55 to 150 | Discontinued |
| BA159G | Taiwan Semiconductor Corporation | 1000 | 1 | 1.2 @ 1 A | 250 | 5 @ 1000 V | DO-204AL (DO-41) | -55 to 150 | Active |
| 1N4007-E3/73 | Vishay General Semiconductor - Diodes Division | 1000 | 1 | 1.1 @ 1 A | >500 | 5 @ 1000 V | DO-204AL (DO-41) | -50 to 150 | Active |
| 1N4007E-E3/54 | Vishay General Semiconductor - Diodes Division | 1000 | 1 | 1.1 @ 1 A | >500 | 5 @ 1000 V | DO-204AL (DO-41) | -50 to 150 | Active |
| 1N4007E-E3/73 | Vishay General Semiconductor - Diodes Division | 1000 | 1 | 1.1 @ 1 A | >500 | 5 @ 1000 V | DO-204AL (DO-41) | -55 to 150 | Active |
| GPP10M-E3/54 | Vishay General Semiconductor - Diodes Division | 1000 | 1 | 1.1 @ 1 A | >500 | 5 @ 1000 V | DO-204AL (DO-41) | -55 to 150 | Active |
| GPP10M-E3/73 | Vishay General Semiconductor - Diodes Division | 1000 | 1 | 1.1 @ 1 A | >500 | 5 @ 1000 V | DO-204AL (DO-41) | -55 to 150 | Active |
| 1N4007-E3/53 | Vishay General Semiconductor - Diodes Division | 1000 | 1 | 1.1 @ 1 A | >500 | 5 @ 1000 V | DO-204AL (DO-41) | -50 to 150 | Active |
| 1N4007-E3/54 | Vishay General Semiconductor - Diodes Division | 1000 | 1 | 1.1 @ 1 A | >500 | 5 @ 1000 V | DO-204AL (DO-41) | -50 to 150 | Active |
| 1N4007-G | Comchip Technology | 1000 | 1 | 1.1 @ 1 A | >500 | 5 @ 1000 V | DO-204AL (DO-41) | -55 to 150 | Active |
| 1N4007-T | Diodes Incorporated | 1000 | 1 | 1.0 @ 1 A | >500 | 5 @ 1000 V | DO-204AL (DO-41) | -65 to 150 | Last Time Buy |
Engineering Selection Recommendations
Primary Recommendation: BA159G (Active Status)
The BA159G from Taiwan Semiconductor Corporation is the direct equivalent to the discontinued BA159G R1G. This part maintains identical electrical specifications, including the 250 ns reverse recovery time characteristic of fast recovery diodes, and is currently in active production status with substantial inventory availability (85,100 pieces). This part is ROHS3 compliant and carries unlimited moisture sensitivity rating.
Secondary Recommendations: 1N4007 Series (Vishay)
The 1N4007E-E3/54, 1N4007E-E3/73, 1N4007-E3/53, and 1N4007-E3/54 variants from Vishay General Semiconductor - Diodes Division are compatible alternatives. These parts meet all critical electrical parameters: 1000 V reverse voltage, 1 A average rectified current, 5 µA reverse leakage, and DO-204AL (DO-41) through-hole axial packaging. Forward voltage is 1.1 V (compared to 1.2 V for the original), and recovery time is standard (>500 ns) rather than fast recovery. All variants are in active production with high inventory levels. The 1N4007E-E3/73 variant extends the operating temperature range to -55°C to 150°C, matching the original specification.
Tertiary Recommendations: GPP10M Series (Vishay)
The GPP10M-E3/54 and GPP10M-E3/73 from Vishay General Semiconductor - Diodes Division are compatible alternatives with identical voltage, current, and package specifications. Both variants are in active production status. The GPP10M-E3/73 variant supports the full -55°C to 150°C operating temperature range.
Alternative: 1N4007-G (Comchip Technology)
The 1N4007-G from Comchip Technology meets all critical electrical and mechanical parameters with 1000 V reverse voltage, 1 A average rectified current, and DO-204AL (DO-41) through-hole axial packaging. This part is in active production with high inventory availability (141,281 pieces) and supports the full -55°C to 150°C operating temperature range.
Last Time Buy Status: 1N4007-T (Diodes Incorporated)
The 1N4007-T from Diodes Incorporated is electrically compatible but carries Last Time Buy product status, indicating limited future availability. This part exhibits superior forward voltage characteristics (1.0 V versus 1.2 V) and extended temperature range (-65°C to 150°C). Selection of this part should account for its discontinuation trajectory.
All recommended substitute parts are ROHS3 compliant, carry MSL rating of 1 (Unlimited), and are REACH unaffected, maintaining full regulatory compliance with the original part.
Frequently Asked Questions (FAQ)
Q: Can BA159G R1G be directly replaced with BA159G?
A: Yes. The BA159G is the direct equivalent to BA159G R1G, maintaining identical electrical specifications and packaging. The primary difference is product status: BA159G R1G is discontinued, while BA159G is in active production. No circuit modifications are required.
Q: What is the difference between fast recovery and standard recovery diodes in this application?
A: The original BA159G R1G specifies fast recovery with 250 ns reverse recovery time. Most substitute parts (1N4007 series, GPP10M series) specify standard recovery with >500 ns reverse recovery time. For general-purpose rectification applications, both recovery speeds are functionally equivalent. Applications requiring specific switching characteristics should verify recovery time requirements against circuit design specifications.
Q: Are all substitute parts pin-for-pin compatible?
A: Yes. All substitute parts use the DO-204AL (DO-41) through-hole axial package with identical pin configuration. No PCB modifications are required for mechanical or electrical connection.
Q: What is the significance of the forward voltage difference between BA159G R1G (1.2 V) and 1N4007 variants (1.1 V)?
A: The 0.1 V difference in forward voltage is within normal manufacturing tolerance for general-purpose rectifier diodes. For most applications, this difference has negligible impact on circuit performance. Applications with strict voltage drop requirements should evaluate the specific forward voltage characteristic against design margins.
Q: Can I use 1N4007-T despite its Last Time Buy status?
A: The 1N4007-T is electrically compatible and currently available in inventory. However, Last Time Buy status indicates limited future availability. Selection should account for long-term supply requirements and design lifecycle planning.
Q: What is the operating temperature range consideration for substitute selection?
A: The original BA159G R1G specifies -55°C to 150°C. Most substitute parts support this range or extend it. The 1N4007-E3/53 and 1N4007-E3/54 variants specify -50°C to 150°C, which is acceptable for most applications but does not extend to the lower temperature limit. The 1N4007E-E3/73, 1N4007-G, GPP10M-E3/54, and GPP10M-E3/73 variants support the full -55°C to 150°C range.
Q: Are all substitute parts RoHS compliant?
A: Yes. All substitute parts listed are ROHS3 compliant, matching the compliance status of the original BA159G R1G. All parts carry MSL rating of 1 (Unlimited) and are REACH unaffected.
Q: What inventory considerations should guide substitute selection?
A: The 1N4007E-E3/54 variant offers the highest inventory availability (139,418 pieces), followed by 1N4007-G (141,281 pieces) and 1N4007-T (150,100 pieces). The BA159G direct equivalent has 85,100 pieces available. For applications requiring immediate procurement, any of these options provide adequate supply.
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