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US1JHM3_A/I Equivalent & Substitute Parts
Part Overview
The US1JHM3_A/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount diode operates at 600 V DC reverse voltage with 1 A average rectified current in a DO-214AC (SMA) package. The part is active in production status and carries automotive-grade qualification under AEC-Q101 standard.
Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameter set. Alternatives may be required due to inventory availability, packaging format preferences, or supply chain considerations.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - DC Reverse (Vr) (Max) | 600 | V |
| Current - Average Rectified (Io) | 1 | A |
| Voltage - Forward (Vf) (Max) @ If | 1.7 @ 1 A | V |
| Speed | Fast Recovery ≤ 500ns, > 200mA (Io) | — |
| Reverse Recovery Time (trr) | 75 | ns |
| Current - Reverse Leakage @ Vr | 10 | µA @ 600 V |
| Capacitance @ Vr, F | 10 | pF @ 4V, 1MHz |
| Package / Case | DO-214AC, SMA | — |
| Operating Temperature - Junction | -55 to 150 | °C |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution eligibility is determined by matching the following critical parameters:
- Voltage Rating: Vr (Max) = 600 V
- Current Rating: Io = 1 A
- Forward Voltage: Vf (Max) @ If = 1.7 V @ 1 A
- Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
- Package Type: DO-214AC (SMA) surface mount
- Operating Temperature Range: -55°C to 150°C
- Mounting Type: Surface Mount
Substitute parts are grouped into two categories:
Category A: Vishay General Semiconductor - Diodes Division (Same Manufacturer) Parts US1J-E3/5AT, US1J-E3/61T, US1J-M3/61T, US1JHE3_A/H, and US1JHE3_A/I maintain identical electrical specifications and package configuration. Differences exist only in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) and inventory levels. These parts are direct functional equivalents with no performance variation.
Category B: Alternative Manufacturers (ES1J, ES1J-HF, ES1JH) Parts from HY Electronic (Cayman) Limited, Comchip Technology, and Taiwan Semiconductor Corporation meet the core voltage, current, and package requirements. These alternatives demonstrate improved reverse recovery time (35 ns versus 75 ns) and reduced reverse leakage current (5 µA versus 10 µA), representing enhanced performance characteristics within the same functional class.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Vr (Max) [V] | Io [A] | Vf (Max) @ If [V] | trr [ns] | Ir @ Vr [µA] | C @ Vr [pF] | Package | Packaging Format | Automotive Grade | AEC-Q101 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| US1JHM3_A/I | Vishay General Semiconductor | 600 | 1 | 1.7 @ 1 A | 75 | 10 @ 600 V | 10 @ 4V, 1MHz | DO-214AC (SMA) | Tape & Reel (TR) | Yes | Yes |
| US1J-E3/5AT | Vishay General Semiconductor | 600 | 1 | 1.7 @ 1 A | 75 | 10 @ 600 V | 10 @ 4V, 1MHz | DO-214AC (SMA) | Cut Tape (CT) & Digi-Reel® | No | No |
| US1J-E3/61T | Vishay General Semiconductor | 600 | 1 | 1.7 @ 1 A | 75 | 10 @ 600 V | 10 @ 4V, 1MHz | DO-214AC (SMA) | Cut Tape (CT) & Digi-Reel® | No | No |
| US1J-M3/61T | Vishay General Semiconductor | 600 | 1 | 1.7 @ 1 A | 75 | 10 @ 600 V | 10 @ 4V, 1MHz | DO-214AC (SMA) | Tape & Reel (TR) | No | No |
| US1JHE3_A/H | Vishay General Semiconductor | 600 | 1 | 1.7 @ 1 A | 75 | 10 @ 600 V | 10 @ 4V, 1MHz | DO-214AC (SMA) | Tape & Reel (TR) | Yes | Yes |
| US1JHE3_A/I | Vishay General Semiconductor | 600 | 1 | 1.7 @ 1 A | 75 | 10 @ 600 V | 10 @ 4V, 1MHz | DO-214AC (SMA) | Tape & Reel (TR) | Yes | Yes |
| ES1J | HY Electronic (Cayman) Limited | 600 | 1 | 1.7 @ 1 A | 35 | 5 @ 600 V | 25 @ 4V, 1MHz | DO-214AC (SMA) | — | Yes | Yes |
| ES1J-HF | Comchip Technology | 600 | 1 | 1.7 @ 1 A | 35 | 5 @ 600 V | 15 @ 4V, 1MHz | DO-214AC (SMA) | Tape & Reel (TR) | No | No |
| ES1JH | Taiwan Semiconductor Corporation | 600 | 1 | 1.7 @ 1 A | 35 | 5 @ 600 V | 16 @ 4V, 1MHz | DO-214AC (SMA) | Tape & Reel (TR) | Yes | Yes |
Engineering Selection Recommendations
For Automotive Applications with AEC-Q101 Requirement:
When AEC-Q101 qualification is mandatory, select from: US1JHM3_A/I, US1JHE3_A/H, US1JHE3_A/I, ES1J, or ES1JH. All five parts carry automotive-grade designation and AEC-Q101 certification. US1JHE3_A/H and US1JHE3_A/I are direct Vishay equivalents to the primary part with identical electrical characteristics. ES1J and ES1JH provide enhanced performance with reduced reverse recovery time and leakage current while maintaining automotive qualification.
For Non-Automotive Applications:
US1J-E3/5AT, US1J-E3/61T, US1J-M3/61T, and ES1J-HF are suitable alternatives when automotive qualification is not required. These parts maintain full electrical compatibility with the primary part while offering different packaging formats or alternative sourcing options.
For Packaging Format Considerations:
Tape & Reel (TR) format is available from: US1JHM3_A/I, US1J-M3/61T, US1JHE3_A/H, US1JHE3_A/I, ES1J-HF, and ES1JH.
Cut Tape (CT) & Digi-Reel® format is available from: US1J-E3/5AT and US1J-E3/61T.
For Performance Enhancement:
ES1J, ES1J-HF, and ES1JH offer superior reverse recovery time (35 ns versus 75 ns) and lower reverse leakage current (5 µA versus 10 µA). These characteristics reduce switching losses and improve circuit efficiency in high-frequency applications.
For RoHS Compliance:
All listed parts are RoHS compliant. US1JHM3_A/I, US1J-E3/5AT, US1J-E3/61T, US1J-M3/61T, US1JHE3_A/H, US1JHE3_A/I, ES1J-HF, and ES1JH carry ROHS3 designation. ES1J carries standard RoHS compliance.
Frequently Asked Questions (FAQ)
Q: Can US1J-E3/5AT be used as a direct replacement for US1JHM3_A/I in automotive applications?
A: US1J-E3/5AT matches all electrical specifications but lacks automotive-grade designation and AEC-Q101 certification. For automotive applications requiring these qualifications, use US1JHE3_A/H, US1JHE3_A/I, ES1J, or ES1JH instead.
Q: What is the difference between US1JHE3_A/H and US1JHE3_A/I?
A: Both parts are electrically identical with matching voltage, current, and thermal specifications. The difference lies in packaging reel configuration (H versus I designation). Both carry automotive-grade qualification and AEC-Q101 certification.
Q: Why do ES1J, ES1J-HF, and ES1JH have lower reverse recovery time than the Vishay parts?
A: These alternative manufacturer parts employ different semiconductor processing technology, resulting in faster switching characteristics. The 35 ns reverse recovery time versus 75 ns represents a design difference, not a deficiency in the Vishay parts. Both specifications meet the fast recovery classification requirement.
Q: Are all substitute parts available in DO-214AC (SMA) package?
A: Yes. All listed substitute parts use the DO-214AC (SMA) surface mount package, ensuring mechanical and footprint compatibility with the primary part.
Q: What is the significance of the 10 pF versus 25 pF capacitance difference in ES1J?
A: Capacitance variation reflects different junction design. The higher capacitance in ES1J (25 pF) may affect high-frequency circuit behavior. For applications sensitive to junction capacitance, ES1J-HF (15 pF) or ES1JH (16 pF) provide intermediate values closer to the primary part's 10 pF specification.
Q: Can US1J-E3/61T be substituted for US1JHM3_A/I in high-volume production?
A: US1J-E3/61T provides identical electrical performance and is available in significantly higher inventory (110,219 pcs). However, it lacks automotive qualification. Use only in non-automotive applications or where automotive certification is not required.
Q: What packaging format should be selected for automated assembly?
A: Tape & Reel (TR) format is standard for automated pick-and-place assembly. Available in TR format: US1JHM3_A/I, US1J-M3/61T, US1JHE3_A/H, US1JHE3_A/I, ES1J-HF, and ES1JH. Cut Tape (CT) & Digi-Reel® format (US1J-E3/5AT, US1J-E3/61T) is suitable for lower-volume or manual assembly operations.
Q: Are all substitute parts REACH compliant?
A: US1JHM3_A/I, US1J-E3/5AT, US1J-E3/61T, US1J-M3/61T, US1JHE3_A/H, US1JHE3_A/I, ES1J-HF, and ES1JH are REACH Unaffected. ES1J is REACH Affected. Verify REACH status requirements for your specific application and supply chain.
Q: What is the moisture sensitivity level for all parts?
A: All listed parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling.
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