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1N5358B Zener Diode Equivalent & Substitute Parts
Part Overview
The 1N5358B is a 22 V, 5 W axial through-hole zener diode manufactured by onsemi with ±5% voltage tolerance. This component is classified as obsolete in its original onsemi packaging configuration. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production builds and field replacements. Substitute parts maintain identical electrical specifications while offering improved product status, compliance certifications, or alternative packaging formats.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Voltage - Zener (Nom) | 22 V |
| Power - Max | 5 W |
| Tolerance | ±5% |
| Impedance (Max) | 3.5 Ohms |
| Current - Reverse Leakage @ Vr | 500 nA @ 16.7 V |
| Voltage - Forward (Vf) (Max) @ If | 1.2 V @ 1 A |
| Operating Temperature Range | -65°C ~ 200°C |
| Mounting Type | Through Hole |
| Package / Case | T-18, Axial |
Substitute Part Grouping Explanation
Substitution of the 1N5358B is determined by the following critical parameters:
- Voltage - Zener (Nom): Must equal 22 V
- Power - Max: Must equal 5 W
- Tolerance: ±5% tolerance is the primary specification; parts with ±10% or ±20% tolerance are classified as similar alternatives
- Package / Case: T-18 Axial configuration required for mechanical and electrical compatibility
- Mounting Type: Through Hole configuration mandatory
- Impedance (Max): Must equal 3.5 Ohms
Substitute parts are grouped into two categories:
Direct Substitutes maintain all electrical parameters (22 V, 5 W, ±5% tolerance) and differ only in packaging format or product status. These parts are electrically and mechanically interchangeable.
Similar Alternatives maintain core electrical specifications (22 V, 5 W) but feature relaxed voltage tolerance (±10% or ±20%) or reduced operating temperature range. These parts are functionally compatible but operate within broader tolerance bands.
Parameter Comparison
| Part Number | Manufacturer | Vz (Nom) | Power (Max) | Tolerance | Zzt (Max) | Vf (Max) @ If | Temp Range | Packaging | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|
| 1N5358B | onsemi | 22 V | 5 W | ±5% | 3.5 Ω | 1.2 V @ 1 A | -65°C ~ 200°C | Axial | Obsolete | RoHS non-compliant |
| 1N5358BG | onsemi | 22 V | 5 W | ±5% | 3.5 Ω | 1.2 V @ 1 A | -65°C ~ 200°C | Bulk | Active | ROHS3 Compliant |
| 1N5358BRLG | onsemi | 22 V | 5 W | ±5% | 3.5 Ω | 1.2 V @ 1 A | -65°C ~ 200°C | Cut Tape (CT) | Active | ROHS3 Compliant |
| 1N5358/TR12 | Microchip Technology | 22 V | 5 W | ±20% | 3.5 Ω | 1.2 V @ 1 A | -65°C ~ 150°C | Tape & Reel (TR) | Active | RoHS non-compliant |
| 1N5358/TR8 | Microsemi Corporation | 22 V | 5 W | ±20% | 3.5 Ω | 1.2 V @ 1 A | -65°C ~ 150°C | Tape & Reel (TR) | Active | RoHS non-compliant |
| 1N5358A/TR12 | Microchip Technology | 22 V | 5 W | ±10% | 3.5 Ω | 1.2 V @ 1 A | -65°C ~ 150°C | Tape & Reel (TR) | Active | RoHS non-compliant |
| 1N5358A/TR8 | Microchip Technology | 22 V | 5 W | ±10% | 3.5 Ω | 1.2 V @ 1 A | -65°C ~ 150°C | Tape & Reel (TR) | Active | RoHS non-compliant |
| 1N5358AE3/TR12 | Microchip Technology | 22 V | 5 W | ±10% | 3.5 Ω | 1.2 V @ 1 A | -65°C ~ 150°C | Tape & Reel (TR) | Active | ROHS3 Compliant |
| 1N5358AE3/TR13 | Microchip Technology | 22 V | 5 W | ±10% | 3.5 Ω | 1.2 V @ 1 A | -65°C ~ 150°C | Tape & Reel (TR) | Active | ROHS3 Compliant |
| 1N5358AE3/TR8 | Microchip Technology | 22 V | 5 W | ±10% | 3.5 Ω | 1.2 V @ 1 A | -65°C ~ 150°C | Tape & Reel (TR) | Active | ROHS3 Compliant |
| 1N5358B (Microsemi) | Microsemi Corporation | 22 V | 5 W | ±5% | 3.5 Ω | 1.2 V @ 1 A | -65°C ~ 150°C | T-18 | Active | RoHS non-compliant |
Engineering Selection Recommendations
Direct Substitutes (Electrically and Mechanically Equivalent)
The 1N5358BG and 1N5358BRLG are direct substitutes for the 1N5358B. Both parts maintain identical electrical specifications (22 V, 5 W, ±5% tolerance) and T-18 axial package configuration. Both are manufactured by onsemi with Active product status and ROHS3 compliance, providing improved regulatory alignment compared to the obsolete original part. The 1N5358BG is supplied in Bulk packaging, while the 1N5358BRLG is supplied in Cut Tape format. Selection between these two depends on procurement and assembly requirements.
The 1N5358B manufactured by Microsemi Corporation is also a direct electrical equivalent with Active product status. This part maintains the ±5% tolerance specification and identical electrical parameters. However, it features a reduced operating temperature range (-65°C ~ 150°C) compared to the onsemi original (-65°C ~ 200°C). This part is RoHS non-compliant.
Similar Alternatives (Functionally Compatible with Parameter Variations)
Parts designated 1N5358/TR12 and 1N5358/TR8 are functionally compatible alternatives with relaxed voltage tolerance (±20%) and reduced operating temperature range (-65°C ~ 150°C). These parts are suitable for applications where the broader tolerance band is acceptable.
Parts designated 1N5358A/TR12, 1N5358A/TR8, 1N5358AE3/TR12, 1N5358AE3/TR13, and 1N5358AE3/TR8 feature ±10% voltage tolerance and reduced operating temperature range (-65°C ~ 150°C). The 1N5358AE3 variants offer ROHS3 compliance. These parts are suitable for applications where ±10% tolerance is acceptable and the reduced temperature range does not conflict with system requirements.
Frequently Asked Questions (FAQ)
Q: Can I use 1N5358BG as a direct replacement for 1N5358B?
A: Yes. The 1N5358BG is a direct electrical and mechanical equivalent. Both parts maintain 22 V nominal zener voltage, 5 W power rating, and ±5% tolerance. The primary differences are packaging format (Bulk vs. unspecified) and improved product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. non-compliant).
Q: What is the difference between 1N5358BRLG and 1N5358BG?
A: Both parts are electrically identical with 22 V, 5 W, ±5% specifications. The difference is packaging format: 1N5358BRLG is supplied in Cut Tape (CT) format suitable for automated assembly, while 1N5358BG is supplied in Bulk format. Selection depends on assembly process requirements.
Q: Can I substitute a part with ±10% tolerance for the ±5% specification?
A: Parts with ±10% tolerance (1N5358A and 1N5358AE3 variants) are functionally compatible but operate within a broader tolerance band. The zener voltage may deviate up to ±10% from the 22 V nominal value. This substitution is acceptable only if the application circuit design accommodates the wider tolerance range.
Q: What is the impact of using a part with ±20% tolerance?
A: Parts with ±20% tolerance (1N5358/TR12 and 1N5358/TR8) permit zener voltage deviation up to ±20% from 22 V nominal. This represents a significant tolerance relaxation and is suitable only for applications with loose voltage regulation requirements or where the circuit design explicitly accommodates this tolerance band.
Q: Does the operating temperature range affect substitution compatibility?
A: The original 1N5358B operates from -65°C to 200°C. Substitute parts from Microchip Technology and Microsemi Corporation operate from -65°C to 150°C. If the application requires operation above 150°C, only the onsemi 1N5358BG or 1N5358BRLG are suitable. For applications with maximum operating temperature at or below 150°C, all listed substitutes are compatible.
Q: Are all substitute parts RoHS compliant?
A: No. The 1N5358BG and 1N5358BRLG (onsemi) and the 1N5358AE3 variants (Microchip Technology) are ROHS3 compliant. The original 1N5358B, 1N5358/TR12, 1N5358/TR8, 1N5358A variants, and the Microsemi 1N5358B are RoHS non-compliant. RoHS compliance selection depends on regulatory requirements for the end application.
Q: What packaging formats are available?
A: The 1N5358B is available in the following packaging formats: Bulk (1N5358BG), Cut Tape (1N5358BRLG), and Tape & Reel (1N5358/TR12, 1N5358/TR8, 1N5358A/TR12, 1N5358A/TR8, 1N5358AE3/TR12, 1N5358AE3/TR13, 1N5358AE3/TR8). Selection depends on procurement volume and assembly process requirements.
Q: Which substitute offers the best compliance profile?
A: The 1N5358AE3 variants (1N5358AE3/TR12, 1N5358AE3/TR13, 1N5358AE3/TR8) offer ROHS3 compliance with Active product status. However, these parts feature ±10% tolerance and -65°C to 150°C operating range. For applications requiring ±5% tolerance and extended temperature range, the onsemi 1N5358BG or 1N5358BRLG are the optimal choices, offering ROHS3 compliance with full electrical specification match.
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