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BZX79-C3V0,113 Equivalent & Substitute Parts
Part Overview
The BZX79-C3V0,113 is a 3 V Zener diode rated for 400 mW power dissipation with ±5% voltage tolerance, manufactured by Nexperia USA Inc. This through-hole component operates across a temperature range of -65°C to 200°C and is packaged in the DO-204AH (DO-35) axial configuration. The part is currently active in production and ROHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part number becomes unavailable or when alternative packaging or tolerance specifications are required.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Zener (Nominal) | 3 | V |
| Tolerance | ±5% | — |
| Power - Maximum | 400 | mW |
| Impedance (Maximum) | 95 | Ohms |
| Current - Reverse Leakage @ Vr | 10 | µA @ 1 V |
| Voltage - Forward (Maximum) @ If | 900 | mV @ 10 mA |
| Operating Temperature Range | -65 to 200 | °C |
| Mounting Type | Through Hole | — |
| Package / Case | DO-204AH, DO-35, Axial | — |
Substitute Part Grouping Explanation
Substitute parts for the BZX79-C3V0,113 are classified into two categories based on electrical and mechanical compatibility:
Parametric Equivalents share identical or superior electrical specifications and the same package configuration, allowing direct substitution without circuit redesign:
- Zener voltage: 3 V (nominal)
- Power rating: 400 mW (minimum)
- Impedance: 95 Ohms (maximum)
- Reverse leakage current: 10 µA @ 1 V (maximum)
- Forward voltage: 900 mV @ 10 mA (maximum)
- Operating temperature: -65°C to 200°C (minimum range)
- Mounting type: Through Hole
- Package: DO-204AH / DO-35 Axial
Similar Parts meet the core functional requirements (3 V Zener voltage, through-hole mounting, DO-35 package) but exhibit variations in power rating, impedance, or reverse leakage characteristics. These parts are suitable for applications where the specified parameter differences do not conflict with circuit requirements.
Parameter Comparison
| Part Number | Manufacturer | Vz (Nom) | Tolerance | Power (Max) | Zzt (Max) | Ir @ Vr | Vf (Max) @ If | Temp Range | Package | Packaging Type |
|---|---|---|---|---|---|---|---|---|---|---|
| BZX79-C3V0,113 | Nexperia USA Inc. | 3 V | ±5% | 400 mW | 95 Ω | 10 µA @ 1 V | 900 mV @ 10 mA | -65 to 200°C | DO-204AH, DO-35 | Cut Tape (CT) |
| BZX79-B3V0,133 | NXP USA Inc. | 3 V | ±2% | 400 mW | 95 Ω | 10 µA @ 1 V | 900 mV @ 10 mA | -65 to 200°C | DO-204AH, DO-35 | Bulk |
| BZX79-C3V0,133 | NXP Semiconductors | 3 V | ±5% | 400 mW | 95 Ω | 10 µA @ 1 V | 900 mV @ 10 mA | -65 to 200°C | DO-204AH, DO-35 | Bulk |
| BZX79-C3V0,143 | Nexperia USA Inc. | 3 V | ±5% | 400 mW | 95 Ω | 10 µA @ 1 V | 900 mV @ 10 mA | -65 to 200°C | DO-204AH, DO-35 | Cut Tape (CT) |
| 1N4619-1 | Microchip Technology | 3 V | ±5% | 500 mW | 1600 Ω | 400 nA @ 1 V | 1.1 V @ 200 mA | -65 to 175°C | DO-204AH, DO-35 | Bulk |
Engineering Selection Recommendations
Direct Substitutes (Parametric Equivalents):
BZX79-B3V0,133, BZX79-C3V0,133, and BZX79-C3V0,143 are direct substitutes for the BZX79-C3V0,113. All four parts maintain identical Zener voltage (3 V), power rating (400 mW), impedance (95 Ohms), reverse leakage current (10 µA @ 1 V), forward voltage (900 mV @ 10 mA), and operating temperature range (-65°C to 200°C). The BZX79-B3V0,133 offers improved voltage tolerance (±2% versus ±5%), providing tighter regulation in applications requiring enhanced precision. All substitute parts are ROHS3 compliant and REACH unaffected. Selection among these equivalents depends on packaging requirements (Cut Tape versus Bulk) and tolerance specifications.
Alternative Part (Similar Characteristics):
The 1N4619-1 manufactured by Microchip Technology shares the 3 V Zener voltage and DO-35 package configuration but differs in power rating (500 mW versus 400 mW), impedance (1600 Ohms versus 95 Ohms), reverse leakage current (400 nA @ 1 V versus 10 µA @ 1 V), and maximum operating temperature (175°C versus 200°C). This part is suitable for applications where higher power dissipation capacity is beneficial, though the elevated impedance and reduced reverse leakage characteristics may affect circuit performance in precision voltage regulation applications. The 1N4619-1 is RoHS non-compliant and should be evaluated against compliance requirements.
Frequently Asked Questions (FAQ)
Q: Can BZX79-B3V0,133 replace BZX79-C3V0,113 in all applications?
A: Yes. The BZX79-B3V0,133 is a parametric equivalent with identical electrical specifications except for improved voltage tolerance (±2% versus ±5%). The tighter tolerance provides superior voltage regulation accuracy. Both parts operate across -65°C to 200°C and are packaged in DO-204AH (DO-35) axial configuration.
Q: What is the difference between Cut Tape (CT) and Bulk packaging?
A: Cut Tape packaging supplies components on individual tape segments suitable for small-quantity orders and manual assembly. Bulk packaging provides loose components in larger quantities, typically for automated assembly processes. Electrical specifications remain identical regardless of packaging type.
Q: Is the 1N4619-1 a direct replacement for BZX79-C3V0,113?
A: The 1N4619-1 is not a direct replacement. While both are 3 V Zener diodes in DO-35 packages, the 1N4619-1 exhibits significantly different electrical characteristics: 500 mW power rating (versus 400 mW), 1600 Ohms impedance (versus 95 Ohms), and 400 nA reverse leakage (versus 10 µA). The 1N4619-1 is suitable only for applications where these parameter differences do not conflict with circuit design requirements.
Q: Why does BZX79-C3V0,133 have higher inventory availability than BZX79-C3V0,113?
A: Inventory levels reflect supplier stock positions and market demand patterns. BZX79-C3V0,133 in Bulk packaging (410,863 pcs) typically maintains higher stock than Cut Tape variants due to higher-volume automated assembly demand. Both part numbers are active products with identical electrical specifications.
Q: What compliance certifications apply to these substitute parts?
A: BZX79-C3V0,113, BZX79-B3V0,133, BZX79-C3V0,133, and BZX79-C3V0,143 are ROHS3 compliant and REACH unaffected. The 1N4619-1 is RoHS non-compliant and should be evaluated against project compliance requirements before selection.
Q: Can I use BZX79-C3V0,143 instead of BZX79-C3V0,113?
A: Yes. BZX79-C3V0,143 is a parametric equivalent with identical electrical specifications and operating characteristics. The primary difference is packaging format (Cut Tape). Both parts are manufactured by Nexperia USA Inc., are ROHS3 compliant, and operate across -65°C to 200°C.
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