BZD27C12P RVG Equivalent & Substitute Parts

Part Overview

The BZD27C12P RVG is a Zener diode manufactured by Taiwan Semiconductor Corporation, designed for voltage regulation and protection applications. This component operates at a nominal Zener voltage of 12.05 V with a maximum power dissipation of 1 W in a surface mount Sub SMA package (DO-219AB). The part is currently in Active product status with 1163 units in stock.

Identifying equivalent and substitute parts is necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design revisions necessitate component sourcing from multiple suppliers or inventory batches.

Substiute Parts

BZD27C12P RVG

Taiwan Semiconductor CorporationIn Stock: 1244BZD27C12P RVG Datasheet

Current PartRFQ

BZD27C12P

Taiwan Semiconductor CorporationIn Stock: 5090BZD27C12P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BZD27C12P RVG is determined by the following critical parameters:

Electrical Parameters (Must Match):

• Nominal Zener voltage: 12.05 V
• Maximum power dissipation: 1 W
• Impedance (Max): 7 Ohms
• Reverse leakage current: 3 µA @ 9.1 V
• Forward voltage: 1.2 V @ 200 mA
• Operating temperature range: -55°C to 175°C

Mechanical Parameters (Must Match):

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

Compliance Parameters (Must Match):

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

Allowable Variations:

• Tolerance: ±5% to ±5.39% (tighter tolerance acceptable)
• Packaging format: Bulk or Tape & Reel (TR)
• Product status: Active or Not For New Designs

The substitute part BZD27C12P meets all electrical, mechanical, and compliance requirements and differs only in packaging format (Tape & Reel) and tolerance specification (±5% versus ±5.39%).

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (BZD27C12P RVG): The BZD27C12P RVG is the recommended choice for new designs. This part carries Active product status, indicating ongoing manufacturer support and availability. It is ROHS3 compliant and carries unlimited moisture sensitivity rating, suitable for standard manufacturing and storage conditions.

Substitute Selection (BZD27C12P): The BZD27C12P substitute part is electrically and mechanically identical to the main part and maintains full ROHS3 compliance. The tighter tolerance specification (±5% versus ±5.39%) provides improved voltage accuracy. However, this part carries Not For New Designs status, indicating the manufacturer has discontinued active support. This part is suitable for:

• Replacement in existing production runs where design is already established
• Inventory supplementation when primary part availability is constrained
• Applications where the tighter tolerance provides design margin

The primary difference between the two parts is packaging format: the main part is supplied in bulk, while the substitute is supplied in Tape & Reel format. Selection between these formats depends on manufacturing process requirements and assembly equipment compatibility.

Frequently Asked Questions (FAQ)

Q: Can BZD27C12P (Tape & Reel) be used as a direct replacement for BZD27C12P RVG (Bulk)?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format. Tape & Reel packaging is suitable for automated pick-and-place assembly, while bulk packaging is typically used for manual assembly or lower-volume applications. The component itself functions identically in the circuit.

Q: What does "Not For New Designs" status mean for the substitute part?

A: This designation indicates the manufacturer has discontinued active development and support for this part number. While the part remains available in inventory and functions to specification, the manufacturer does not guarantee long-term availability or future production. For new product designs, the Active status part (BZD27C12P RVG) is preferred to ensure supply chain continuity.

Q: Are the tolerance differences between ±5.39% and ±5% significant?

A: The substitute part has a tighter tolerance specification (±5%), meaning the actual Zener voltage will be closer to the nominal 12.05 V value. This provides improved voltage regulation accuracy. In applications where voltage precision is critical, the tighter tolerance may provide design margin. Both tolerances fall within acceptable ranges for standard voltage regulation applications.

Q: Can these parts be used interchangeably in existing assemblies?

A: Yes. Both parts share identical electrical characteristics, operating temperature range, power rating, and package type (DO-219AB Sub SMA). They are pin-compatible and functionally equivalent. The only consideration is packaging format compatibility with assembly equipment.

Q: What is the significance of the DO-219AB package designation?

A: DO-219AB is the standardized package outline for Sub SMA (Small Outline) surface mount Zener diodes. Both the main part and substitute use this identical package, ensuring mechanical and electrical compatibility on PCBs designed for this footprint.

Q: Are there any compliance or regulatory differences between the two parts?

A: No. Both parts are ROHS3 compliant, carry identical Moisture Sensitivity Level ratings (1 - Unlimited), and share the same REACH and ECCN classifications. They are equivalent from a regulatory and environmental compliance perspective.