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SZ-10N40VR Equivalent & Substitute Parts
Part Overview
The SZ-10N40VR is a Zener transient voltage suppressor (TVS) diode manufactured by Sanken Electric USA Inc., designed for surface mount applications in automotive-grade circuits. This component operates across a temperature range of -55°C to 175°C and meets AEC-Q101 automotive qualification standards. The part is currently classified as obsolete, making identification of active equivalent components essential for ongoing production and maintenance applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | SZ-10N40VR |
| Manufacturer | Sanken Electric USA Inc. |
| Category | Transient Voltage Suppressors (TVS) |
| Series | SZ-10 |
| Type | Zener |
| Voltage - Breakdown (Min) | 36V |
| Unidirectional Channels | 1 |
| Operating Temperature | -55°C ~ 175°C (TJ) |
| Grade | Automotive |
| Qualification | AEC-Q101 |
| Mounting Type | Surface Mount |
| Package / Case | Nonstandard SMD |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution of the SZ-10N40VR is determined by strict equivalence across the following electrical and mechanical parameters:
- Voltage - Breakdown (Min): 36V
- Unidirectional Channels: 1
- Operating Temperature Range: -55°C ~ 175°C (TJ)
- Grade: Automotive
- Qualification: AEC-Q101
- Mounting Type: Surface Mount
- Package / Case: Nonstandard SMD
- Series: SZ-10
The SZ-10N40VL meets all these criteria and is classified as an active product within the same SZ-10 series, making it a direct functional equivalent for the obsolete SZ-10N40VR.
Parameter Comparison
| Parameter | SZ-10N40VR (Main Part) | SZ-10N40VL (Substitute) |
|---|---|---|
| Manufacturer | Sanken Electric USA Inc. | Sanken Electric USA Inc. |
| Category | Transient Voltage Suppressors (TVS) | Transient Voltage Suppressors (TVS) |
| Series | SZ-10 | SZ-10 |
| Type | Zener | Zener |
| Voltage - Breakdown (Min) | 36V | 36V |
| Unidirectional Channels | 1 | 1 |
| Operating Temperature | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) |
| Grade | Automotive | Automotive |
| Qualification | AEC-Q101 | AEC-Q101 |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | Nonstandard SMD | Nonstandard SMD |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active |
| RoHS Status | Not specified | RoHS Compliant |
Engineering Selection Recommendations
The SZ-10N40VL is the appropriate substitute for the obsolete SZ-10N40VR. Both components share identical electrical specifications, automotive-grade classification, and AEC-Q101 qualification. The SZ-10N40VL maintains active product status with confirmed inventory availability, ensuring supply chain continuity. The RoHS compliance certification of the SZ-10N40VL provides additional environmental regulatory alignment for new designs and production runs.
Frequently Asked Questions (FAQ)
Q: Can the SZ-10N40VL be used as a direct replacement for the SZ-10N40VR?
A: Yes. Both components are members of the SZ-10 series with identical breakdown voltage (36V minimum), operating temperature range (-55°C to 175°C), automotive grade classification, and AEC-Q101 qualification. The electrical and mechanical parameters are equivalent.
Q: What is the primary difference between these two part numbers?
A: The SZ-10N40VR is obsolete, while the SZ-10N40VL is an active product. The SZ-10N40VL additionally carries RoHS compliance certification. Both components are functionally identical for circuit applications.
Q: Are there packaging differences between the SZ-10N40VR and SZ-10N40VL?
A: Both components use the same nonstandard SMD package and are surface mount devices. No package or mounting modifications are required for substitution.
Q: Does the SZ-10N40VL meet automotive qualification requirements?
A: Yes. The SZ-10N40VL carries AEC-Q101 qualification and automotive-grade classification, matching the requirements of the original SZ-10N40VR.
Q: What is the moisture sensitivity level for the SZ-10N40VL?
A: The moisture sensitivity level is MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.
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