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EGP10D-M3/73 Equivalent & Substitute Parts
Part Overview
The EGP10D-M3/73 is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 200 V DC reverse voltage and 1 A average rectified current in a DO-204AL (DO-41) through-hole axial package. This part is classified as obsolete, indicating discontinuation from the original manufacturer. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for applications utilizing this component.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - DC Reverse (Vr) (Max) | 200 | V |
| Current - Average Rectified (Io) | 1 | A |
| Voltage - Forward (Vf) (Max) @ If | 950 mV @ 1 A | mV |
| Speed | Fast Recovery ≤ 500ns, > 200mA (Io) | — |
| Reverse Recovery Time (trr) | 50 | ns |
| Current - Reverse Leakage @ Vr | 5 | µA @ 200 V |
| Capacitance @ Vr, F | 22 | pF @ 4V, 1MHz |
| Mounting Type | Through Hole | — |
| Package / Case | DO-204AL, DO-41, Axial | — |
| Operating Temperature - Junction | -65 to 150 | °C |
| Technology | Standard | — |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitute parts for the EGP10D-M3/73 are grouped based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:
Critical Parameters for Substitution:
- Voltage - DC Reverse (Vr) (Max): 200 V
- Current - Average Rectified (Io): 1 A
- Mounting Type: Through Hole
- Package / Case: DO-204AL (DO-41) or equivalent axial configuration
Substitution Categories:
Category 1: Parametric Equivalents (Vishay EGP10D Series) Parts EGP10D-E3/53 and EGP10D-E3/73 match all critical electrical parameters and package specifications. Both are active products with identical voltage, current, and thermal characteristics. EGP10D-E3/73 is designated as SUPERECTIFIER® series.
Category 2: Manufacturer Recommended Equivalents (Active Status) Parts including 1N4935GP-AP, 1N4935GP-BP, 1N4935GP-TP, 1N4942GP-AP, 1N4942GP-TP, EGP10D (Fairchild), and 1N3611 meet the 200 V / 1 A electrical specification and through-hole axial package requirement. These parts are active products from alternative manufacturers.
Category 3: Higher Current Rating (Uprating Capable) Part MUR220G provides 200 V reverse voltage with 2 A average rectified current, enabling use in applications where current margin is required. This part maintains fast recovery characteristics and through-hole axial packaging.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Vr (Max) [V] | Io [A] | Vf (Max) @ If [mV] | trr [ns] | Ir @ Vr [µA] | Package | Product Status | Temp Range [°C] |
|---|---|---|---|---|---|---|---|---|---|
| EGP10D-M3/73 | Vishay | 200 | 1 | 950 @ 1A | 50 | 5 @ 200V | DO-204AL (DO-41) | Obsolete | -65 to 150 |
| EGP10D-E3/53 | Vishay | 200 | 1 | 950 @ 1A | 50 | 5 @ 200V | DO-204AL (DO-41) | Active | -65 to 150 |
| EGP10D-E3/73 | Vishay | 200 | 1 | 950 @ 1A | 50 | 5 @ 200V | DO-204AL (DO-41) | Active | -65 to 150 |
| 1N3611 | Microchip Technology | 200 | 1 | 1100 @ 1A | — | 1 @ 200V | A, Axial | Active | -65 to 175 |
| 1N4935GP-AP | Micro Commercial Co | 200 | 1 | 1200 @ 1A | 200 | 5 @ 200V | DO-204AL (DO-41) | Active | -55 to 150 |
| 1N4935GP-BP | Micro Commercial Co | 200 | 1 | 1300 @ 1A | 200 | 5 @ 200V | DO-204AL (DO-41) | Active | -55 to 150 |
| 1N4935GP-TP | Micro Commercial Co | 200 | 1 | 1200 @ 1A | 200 | 5 @ 200V | DO-204AL (DO-41) | Active | -55 to 150 |
| 1N4942GP-AP | Micro Commercial Co | 200 | 1 | 1300 @ 1A | 150 | 5 @ 200V | DO-204AL (DO-41) | Active | -55 to 150 |
| 1N4942GP-TP | Micro Commercial Co | 200 | 1 | 1300 @ 1A | 150 | 5 @ 200V | DO-204AL (DO-41) | Active | -55 to 150 |
| EGP10D | Fairchild Semiconductor | 200 | 1 | 950 @ 1A | 50 | 5 @ 200V | DO-204AL (DO-41) | Active | -65 to 150 |
| MUR220G | onsemi | 200 | 2 | 950 @ 2A | 35 | 2 @ 200V | DO-204AL (DO-41), Axial | Active | -65 to 175 |
Engineering Selection Recommendations
Primary Substitutes (Direct Replacement):
The Vishay EGP10D-E3/53 and EGP10D-E3/73 are the preferred direct substitutes for the obsolete EGP10D-M3/73. Both parts are active products from the same manufacturer with identical electrical specifications, package configuration, and operating temperature range. EGP10D-E3/73 offers the highest inventory availability (2945 units) and maintains ROHS3 compliance and REACH unaffected status.
The Fairchild Semiconductor EGP10D is an active alternative with matching electrical parameters, forward voltage, and reverse recovery time. This part provides continuity for designs requiring the specific 50 ns recovery time characteristic.
Secondary Substitutes (Functional Equivalents):
The Micro Commercial Co 1N4935GP and 1N4942GP series parts meet the 200 V / 1 A specification and DO-41 package requirement. These parts are active products with ROHS3 compliance. Differences include higher forward voltage (1.2–1.3 V versus 950 mV) and longer reverse recovery time (150–200 ns versus 50 ns). Selection depends on thermal dissipation tolerance and switching speed requirements.
The Microchip Technology 1N3611 is an active product meeting voltage and current specifications in axial package. This part exhibits lower reverse leakage (1 µA versus 5 µA) and extended operating temperature range (-65 to 175°C). However, it is RoHS non-compliant and exhibits standard recovery speed (>500 ns) rather than fast recovery.
Higher Current Alternative:
The onsemi MUR220G provides 200 V reverse voltage with 2 A average rectified current, enabling current margin in applications. This part features faster reverse recovery (35 ns) and lower reverse leakage (2 µA). Operating temperature range extends to 175°C. Selection is appropriate where current uprating and improved switching performance are acceptable.
Compliance Considerations:
All recommended active substitutes maintain ROHS3 compliance and REACH unaffected status, matching the original part's regulatory standing. The 1N3611 is RoHS non-compliant and should be selected only where legacy compliance requirements apply.
Frequently Asked Questions (FAQ)
Q: Can EGP10D-E3/73 directly replace EGP10D-M3/73 in existing designs?
A: Yes. EGP10D-E3/73 is a parametric equivalent with identical voltage (200 V), current (1 A), forward voltage (950 mV @ 1 A), reverse recovery time (50 ns), and package (DO-204AL DO-41). Both parts operate across -65 to 150°C. No circuit modification is required.
Q: What is the difference between EGP10D-E3/53 and EGP10D-E3/73?
A: Both parts are electrically identical with matching 200 V / 1 A specifications and 50 ns reverse recovery time. The primary difference is product series designation: EGP10D-E3/73 is designated SUPERECTIFIER® series. EGP10D-E3/73 has higher inventory availability (2945 units versus 1032 units).
Q: Why do 1N4935GP and 1N4942GP parts have higher forward voltage than the original?
A: Forward voltage variation (1.2–1.3 V versus 950 mV) reflects manufacturing differences between Micro Commercial Co and Vishay. Both values remain within acceptable rectifier diode specifications for 200 V / 1 A applications. Thermal dissipation increases proportionally with forward voltage; verify thermal design margins in high-current or high-frequency applications.
Q: Can 1N3611 be used as a substitute despite RoHS non-compliance?
A: 1N3611 meets electrical specifications (200 V / 1 A) and axial package requirement. However, it is RoHS non-compliant, making it unsuitable for applications requiring ROHS3 certification. Use only in legacy systems or where compliance exemptions apply. All other recommended substitutes maintain ROHS3 compliance.
Q: What is the advantage of MUR220G over 1 A alternatives?
A: MUR220G provides 2 A average rectified current at 200 V, enabling current margin and thermal headroom in designs. Reverse recovery time is faster (35 ns versus 50 ns), and reverse leakage is lower (2 µA versus 5 µA). Operating temperature extends to 175°C. Selection is appropriate where improved switching performance and current capacity are required.
Q: Are all substitute parts available in the same package?
A: All recommended substitutes use DO-204AL (DO-41) axial through-hole package or equivalent axial configuration, ensuring mechanical compatibility. 1N3611 uses A axial package, which is mechanically compatible with DO-41. No PCB layout modification is required for any recommended substitute.
Q: What is the impact of reverse recovery time differences on circuit performance?
A: The original EGP10D-M3/73 and direct substitutes (EGP10D-E3/73, EGP10D) feature 50 ns reverse recovery time. 1N4935GP and 1N4942GP parts have 200 ns and 150 ns recovery times respectively. Longer recovery times increase switching losses in high-frequency applications. For switching frequencies below 100 kHz, recovery time differences are typically negligible. Verify switching frequency requirements before selecting parts with extended recovery times.
Q: Is inventory availability a factor in substitute selection?
A: Yes. EGP10D-E3/73 has the highest inventory (2945 units), followed by MUR220G (4150 units). If immediate availability is critical, these parts are preferred. All recommended substitutes are active products with ongoing supply.
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