BZD17C18P RUG Equivalent & Substitute Parts

Part Overview

The BZD17C18P RUG is an 18 V, 800 mW Zener diode manufactured by Taiwan Semiconductor Corporation in a Surface Mount Sub SMA package (DO-219AB). This component is classified as an active product and is RoHS3 compliant. Zener diodes of this specification are used in voltage regulation and protection circuits where precise voltage reference and power dissipation characteristics are required. Substitute parts may be necessary due to inventory availability, supply chain considerations, or specific application requirements such as automotive qualification or extended temperature range operation.

Substiute Parts

BZD17C18P RUG

Taiwan Semiconductor CorporationIn Stock: 816BZD17C18P RUG Datasheet

Current PartRFQ

BZD27C18P-E3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 5481BZD27C18P-E3-08 Datasheet

SimilarRFQ

BZD27C18P-HE3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 2702BZD27C18P-HE3-08 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BZD17C18P RUG are qualified based on the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Zener voltage (Nominal): 18 V
• Maximum power dissipation: 800 mW
• Impedance (Maximum): 15 Ohms
• Reverse leakage current: 1 µA @ 13 V
• Forward voltage: 1.2 V @ 200 mA

Mechanical and Package Compatibility:

• Package type: DO-219AB (Surface Mount Sub SMA)
• Mounting type: Surface Mount

Compliance and Environmental:

• RoHS3 compliance
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute parts identified (BZD27C18P-E3-08 and BZD27C18P-HE3-08) meet all electrical specifications and package requirements. Both are manufactured by Vishay General Semiconductor - Diodes Division and maintain identical electrical performance characteristics. The BZD27C18P-HE3-08 variant includes automotive-grade qualification (AEC-Q101) and an extended lower operating temperature limit (-65°C vs. -55°C).

Parameter Comparison

Engineering Selection Recommendations

BZD27C18P-E3-08 Selection: This substitute part is appropriate for applications requiring direct electrical and mechanical equivalence to the BZD17C18P RUG. It maintains identical electrical specifications and package compatibility. The extended lower operating temperature range (-65°C vs. -55°C) provides additional thermal margin for standard industrial applications. Both parts are RoHS3 compliant and carry unlimited moisture sensitivity classification.

BZD27C18P-HE3-08 Selection: This variant is specified for applications requiring automotive-grade reliability. It carries AEC-Q101 qualification, indicating compliance with automotive industry standards for component qualification. The extended lower operating temperature range (-65°C) and automotive-grade designation make this part suitable for automotive and high-reliability applications. Electrical and mechanical specifications remain identical to the main part.

Compliance Considerations: All parts in this comparison maintain ROHS3 compliance, REACH unaffected status, and identical moisture sensitivity classification. Selection between substitute parts should be based on application requirements regarding automotive qualification and temperature range extension.

Frequently Asked Questions (FAQ)

Q: Can BZD27C18P-E3-08 or BZD27C18P-HE3-08 be used as direct replacements for BZD17C18P RUG?

A: Yes. Both substitute parts meet all electrical specifications (18 V nominal Zener voltage, 800 mW maximum power, 15 Ohms maximum impedance, 1 µA reverse leakage, and 1.2 V forward voltage). Both use the identical DO-219AB package and Surface Mount configuration. Electrical performance and physical compatibility are equivalent.

Q: What is the difference between BZD27C18P-E3-08 and BZD27C18P-HE3-08?

A: The primary difference is automotive qualification. BZD27C18P-HE3-08 carries AEC-Q101 automotive-grade certification, while BZD27C18P-E3-08 does not. Both parts have identical electrical specifications and extended lower operating temperature limits (-65°C). Selection depends on whether automotive-grade qualification is required for the application.

Q: Are there any temperature range differences between the main part and substitutes?

A: Yes. The BZD17C18P RUG operates from -55°C to 175°C. Both substitute parts (BZD27C18P-E3-08 and BZD27C18P-HE3-08) extend the lower temperature limit to -65°C while maintaining the same 175°C upper limit. This provides 10°C additional margin at low temperatures.

Q: Do all parts have the same package configuration?

A: Yes. The BZD17C18P RUG, BZD27C18P-E3-08, and BZD27C18P-HE3-08 all use the DO-219AB Surface Mount package (Sub SMA). Physical dimensions and PCB footprints are identical, enabling direct board-level substitution.

Q: Are RoHS and environmental compliance identical across all three parts?

A: Yes. All three parts are RoHS3 compliant, REACH unaffected, and carry Moisture Sensitivity Level 1 (Unlimited). Compliance status is equivalent across the main part and both substitutes.

Q: Which substitute should be selected for a new design?

A: For new designs, BZD27C18P-HE3-08 is recommended if automotive applications or high-reliability requirements exist. For standard industrial applications without automotive requirements, BZD27C18P-E3-08 provides equivalent electrical performance with extended temperature range. Both offer superior availability compared to the main part.