BZD17C43P RVG Equivalent & Substitute Parts

Part Overview

The BZD17C43P RVG is an active-status Zener diode manufactured by Taiwan Semiconductor Corporation, rated for 43 V nominal Zener voltage with 800 mW maximum power dissipation. This component is designed for surface mount applications in the Sub SMA package configuration (DO-219AB). Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design standardization across manufacturing facilities.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	43	V
Power - Max	800	mW
Impedance (Max)	45	Ohms
Current - Reverse Leakage @ Vr	1	µA @ 33 V
Voltage - Forward (Vf) (Max) @ If	1.2	V @ 200 mA
Operating Temperature Range	-55 to 175	°C (TJ)
Package / Case	DO-219AB	Sub SMA
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the BZD17C43P RVG with the BZD27C43P-E3-08 is based on electrical and mechanical parameter equivalence. Both components share identical specifications for the following critical parameters:

Nominal Zener voltage: 43 V
Maximum power dissipation: 800 mW
Maximum impedance: 45 Ohms
Reverse leakage current: 1 µA @ 33 V
Forward voltage: 1.2 V @ 200 mA
Package configuration: DO-219AB (Sub SMA)
Mounting type: Surface Mount
RoHS3 compliance status
Moisture sensitivity level: 1 (Unlimited)

The substitute part operates across an extended lower temperature range (-65°C minimum versus -55°C), which provides additional thermal margin in applications requiring enhanced low-temperature performance. Both components are active-status products with full regulatory compliance.

Parameter Comparison

Parameter	BZD17C43P RVG (Main)	BZD27C43P-E3-08 (Substitute)	Match Status
Manufacturer	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division	Different
Voltage - Zener (Nom)	43 V	43 V	Equivalent
Power - Max	800 mW	800 mW	Equivalent
Impedance (Max)	45 Ohms	45 Ohms	Equivalent
Current - Reverse Leakage @ Vr	1 µA @ 33 V	1 µA @ 33 V	Equivalent
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 200 mA	1.2 V @ 200 mA	Equivalent
Operating Temperature - Minimum	-55°C	-65°C	Substitute Extended
Operating Temperature - Maximum	175°C	175°C	Equivalent
Package / Case	DO-219AB	DO-219AB	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Equivalent
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent
Packaging Format	Bulk	Tape & Reel (TR)	Different

Engineering Selection Recommendations

Both the BZD17C43P RVG and BZD27C43P-E3-08 are active-status components with full ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution.

Selection between these parts is determined by supply availability and packaging requirements. The BZD17C43P RVG is supplied in bulk packaging, while the BZD27C43P-E3-08 is supplied in Tape & Reel format. The BZD27C43P-E3-08 provides an extended minimum operating temperature specification (-65°C versus -55°C), which may be advantageous in applications with enhanced low-temperature requirements.

Both components are electrically and mechanically interchangeable for applications requiring a 43 V, 800 mW Zener diode in DO-219AB surface mount configuration. PCB layout and reflow profile compatibility remains unchanged between these parts.

Frequently Asked Questions (FAQ)

Q: Are the BZD17C43P RVG and BZD27C43P-E3-08 electrically interchangeable?

A: Yes. Both components share identical electrical specifications including 43 V nominal Zener voltage, 800 mW maximum power dissipation, 45 Ohms maximum impedance, 1 µA reverse leakage current at 33 V, and 1.2 V forward voltage at 200 mA. They are electrically interchangeable for circuit applications.

Q: What is the difference in operating temperature range?

A: The BZD17C43P RVG operates from -55°C to 175°C. The BZD27C43P-E3-08 operates from -65°C to 175°C. The substitute part provides a 10°C lower minimum temperature specification, extending the usable range in cold-environment applications.

Q: Are both parts in the same package?

A: Yes. Both components use the DO-219AB package configuration, also designated as Sub SMA. They are mechanically compatible for surface mount PCB assembly without layout modifications.

Q: What is the difference in packaging format?

A: The BZD17C43P RVG is supplied in bulk packaging. The BZD27C43P-E3-08 is supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for automated pick-and-place assembly processes.

Q: Do both parts meet current compliance standards?

A: Yes. Both the BZD17C43P RVG and BZD27C43P-E3-08 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: Can I use the BZD27C43P-E3-08 as a direct replacement in existing designs?

A: Yes. The BZD27C43P-E3-08 is a direct electrical and mechanical substitute for the BZD17C43P RVG. No circuit modifications or PCB redesign is required. The extended low-temperature specification provides additional thermal margin without affecting high-temperature performance.

Q: What determines substitution eligibility between these parts?

A: Substitution is based on matching nominal Zener voltage (43 V), maximum power rating (800 mW), impedance specification (45 Ohms), reverse leakage current (1 µA @ 33 V), forward voltage (1.2 V @ 200 mA), package type (DO-219AB), and regulatory compliance status (ROHS3, REACH unaffected).

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