BZD27C27P RVG Equivalent & Substitute Parts

Part Overview

The BZD27C27P RVG is a 27 V, 1 W Zener diode manufactured by Taiwan Semiconductor Corporation in Sub SMA surface mount packaging. This component is classified as Active and maintains full RoHS3 compliance with unlimited moisture sensitivity rating. Zener diodes of this specification are used in voltage regulation and protection circuits where precise voltage reference and power dissipation capabilities are required. Substitute parts may be necessary due to inventory availability, supply chain constraints, or specific application requirements such as automotive qualification or extended temperature range operation.

Substiute Parts

BZD27C27P RVG

Taiwan Semiconductor CorporationIn Stock: 894BZD27C27P RVG Datasheet

Current PartRFQ

BZD27C27P-E3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 3287BZD27C27P-E3-08 Datasheet

SimilarRFQ

BZD27C27P-HE3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 12172BZD27C27P-HE3-08 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BZD27C27P RVG is determined by strict equivalence across the following critical parameters:

Zener Voltage (Vz): All substitute parts must maintain 27 V nominal zener voltage to ensure voltage regulation function remains unchanged.

Impedance (Zzt): Maximum impedance of 15 Ohms is maintained across all qualified substitutes to preserve circuit performance characteristics.

Reverse Leakage Current: 1 µA @ 20 V specification is consistent across all alternatives.

Forward Voltage (Vf): 1.2 V maximum @ 200 mA is maintained for forward conduction characteristics.

Package and Mounting: All substitutes use DO-219AB surface mount packaging compatible with Sub SMA footprints.

Compliance Status: All substitute parts maintain RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

The primary distinction between the main part and substitutes is power dissipation rating. The BZD27C27P RVG is rated at 1 W maximum power, while substitute parts BZD27C27P-E3-08 and BZD27C27P-HE3-08 are rated at 800 mW. This represents a 20% reduction in maximum power handling capability. Additionally, substitute part BZD27C27P-HE3-08 includes automotive qualification (AEC-Q101) and extended lower temperature range (-65°C minimum versus -55°C).

Parameter Comparison

Engineering Selection Recommendations

BZD27C27P-E3-08 (Vishay): This substitute part maintains electrical equivalence across all critical zener parameters including voltage, impedance, and leakage characteristics. The 800 mW power rating represents a 20% reduction from the main part specification. This substitute is suitable for applications where power dissipation does not exceed 800 mW. Both parts maintain identical RoHS3 compliance and unlimited moisture sensitivity rating. Operating temperature range extends to -65°C minimum, providing enhanced low-temperature performance compared to the main part.

BZD27C27P-HE3-08 (Vishay): This substitute part provides identical electrical characteristics to BZD27C27P-E3-08 with the addition of AEC-Q101 automotive qualification. The 800 mW power rating applies to this variant as well. This part is specified for automotive applications requiring formal qualification documentation. Extended temperature range to -65°C minimum is maintained. Selection of this part is appropriate for automotive-grade circuit designs or applications requiring automotive component certification.

Selection between substitute parts depends on application power requirements and automotive qualification necessity. Both substitutes are electrically equivalent to the main part within the 800 mW power constraint. The main part BZD27C27P RVG retains advantage in maximum power dissipation at 1 W rating.

Frequently Asked Questions (FAQ)

Q: Can BZD27C27P-E3-08 or BZD27C27P-HE3-08 be used as direct replacements for BZD27C27P RVG?

A: Both substitute parts are electrically equivalent for zener voltage (27 V), impedance (15 Ohms), and leakage characteristics. However, the 800 mW power rating of the substitutes is 20% lower than the 1 W rating of the main part. Direct replacement is valid only if circuit power dissipation does not exceed 800 mW.

Q: What is the difference between BZD27C27P-E3-08 and BZD27C27P-HE3-08?

A: Both parts are electrically identical with 27 V zener voltage and 800 mW power rating. The primary difference is that BZD27C27P-HE3-08 carries AEC-Q101 automotive qualification, making it suitable for automotive applications. BZD27C27P-HE3-08 also specifies extended lower temperature range to -65°C.

Q: Are all three parts compatible with the same PCB footprint?

A: Yes. All three parts use DO-219AB surface mount packaging, which is compatible with Sub SMA footprints. No PCB layout modifications are required for substitution.

Q: Do the substitute parts maintain RoHS3 compliance?

A: Yes. Both BZD27C27P-E3-08 and BZD27C27P-HE3-08 are RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1), identical to the main part.

Q: What is the impact of the 800 mW versus 1 W power rating difference?

A: The 800 mW rating of substitute parts represents the maximum continuous power dissipation capability. Applications dissipating more than 800 mW require the main part BZD27C27P RVG with its 1 W rating. For applications within 800 mW, both parts are functionally equivalent.

Q: Can BZD27C27P-HE3-08 be used in non-automotive applications?

A: Yes. BZD27C27P-HE3-08 meets all electrical specifications for general-purpose applications. The AEC-Q101 qualification is an additional certification that does not restrict use in non-automotive circuits.

Q: Are there any temperature range considerations for substitution?

A: The main part operates from -55°C to 175°C. Both substitute parts extend the lower temperature limit to -65°C, providing enhanced cold-temperature performance. The upper temperature limit of 175°C is maintained across all three parts.