BZD27C180P RVG Equivalent & Substitute Parts

Part Overview

The BZD27C180P RVG is an active-status Zener diode manufactured by Taiwan Semiconductor Corporation, rated for 179.5 V nominal Zener voltage with 1 W maximum power dissipation. This component is designed for surface mount applications in Sub SMA packaging (DO-219AB). The part is supplied in Tape & Reel (TR) format with 1114 units currently in stock.

Substitute parts are identified when equivalent electrical performance can be maintained across critical parameters including Zener voltage, power rating, impedance, leakage current, and operating temperature range, while accommodating different packaging and tolerance specifications.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	179.5	V
Tolerance	±6.4%	%
Power - Max	1	W
Impedance (Max)	450	Ohms
Current - Reverse Leakage @ Vr	1	µA @ 130 V
Voltage - Forward (Vf) (Max) @ If	1.2	V @ 200 mA
Operating Temperature	-55 to 175	°C (TJ)
Mounting Type	Surface Mount
Package / Case	DO-219AB
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the BZD27C180P RVG is determined by the following critical parameters:

Electrical Equivalence Criteria:

Zener voltage within acceptable tolerance band (nominal voltage 179.5 V to 180 V range)
Maximum power dissipation of 1 W
Impedance specification of 450 Ohms maximum
Reverse leakage current of 1 µA @ 130 V
Forward voltage characteristics compatible with 1.2 V @ 200 mA specification
Operating temperature range of -55°C to 175°C (TJ)

Mechanical & Compliance Criteria:

Surface mount mounting type
ROHS3 compliance
Moisture sensitivity level 1 (Unlimited)
REACH unaffected status

The BZD27C180PW qualifies as a substitute part based on these parameters, with the primary difference being packaging format (SOD-123W versus Sub SMA) and tolerance specification (±5% versus ±6.4%).

Parameter Comparison

Parameter	BZD27C180P RVG	BZD27C180PW	Unit
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
Category	Diodes, Zener	Diodes, Zener
Voltage - Zener (Nom)	179.5	180	V
Tolerance	±6.4%	±5%	%
Power - Max	1	1	W
Impedance (Max)	450	450	Ohms
Current - Reverse Leakage @ Vr	1 @ 130 V	1 @ 130 V	µA
Voltage - Forward (Vf) (Max) @ If	1.2 @ 200 mA	1 @ 200 mA	V
Operating Temperature	-55 to 175	-55 to 175	°C (TJ)
Mounting Type	Surface Mount	Surface Mount
Package / Case	DO-219AB (Sub SMA)	SOD-123W
Packaging Format	Tape & Reel (TR)	Cut Tape (CT)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

BZD27C180P RVG (Primary Part):

Active product status with established supply (1114 units in stock)
ROHS3 compliant and REACH unaffected
Specified for Sub SMA (DO-219AB) package format
Supplied in Tape & Reel format for automated assembly
Tolerance specification of ±6.4%

BZD27C180PW (Substitute Part):

Active product status with available inventory (822 units in stock)
ROHS3 compliant and REACH unaffected
Specified for SOD-123W package format
Supplied in Cut Tape format
Tighter tolerance specification of ±5%
Lower forward voltage specification (1 V @ 200 mA versus 1.2 V @ 200 mA)

Selection between these parts is determined by PCB layout requirements and packaging format compatibility. Both parts maintain equivalent electrical performance across Zener voltage, power rating, impedance, leakage current, and operating temperature specifications. The substitute part offers improved tolerance performance and lower forward voltage characteristics.

Frequently Asked Questions (FAQ)

Q: Can BZD27C180PW be used as a direct replacement for BZD27C180P RVG?

A: Electrical substitution is valid based on equivalent Zener voltage (179.5 V to 180 V), power rating (1 W), impedance (450 Ohms), leakage current (1 µA @ 130 V), and operating temperature range (-55°C to 175°C). Physical substitution requires PCB layout compatibility with SOD-123W package format instead of Sub SMA (DO-219AB).

Q: What is the significance of the tolerance difference between ±6.4% and ±5%?

A: The BZD27C180PW tolerance of ±5% represents a tighter specification than the BZD27C180P RVG tolerance of ±6.4%. This means the substitute part maintains Zener voltage within a narrower band around the nominal 180 V specification, providing improved voltage regulation consistency.

Q: Are there packaging format considerations for substitution?

A: Yes. The BZD27C180P RVG uses Sub SMA (DO-219AB) packaging supplied in Tape & Reel format, while the BZD27C180PW uses SOD-123W packaging supplied in Cut Tape format. PCB footprint and automated assembly equipment compatibility must be verified before substitution.

Q: Do both parts meet the same compliance requirements?

A: Both parts are ROHS3 compliant, REACH unaffected, and carry Moisture Sensitivity Level 1 (Unlimited). Compliance status is equivalent across both options.

Q: What is the difference in forward voltage specification?

A: The BZD27C180P RVG specifies maximum forward voltage of 1.2 V @ 200 mA, while the BZD27C180PW specifies 1 V @ 200 mA. The substitute part exhibits lower forward voltage characteristics, which may affect circuit behavior in forward-biased applications.

Q: Are both parts from the same manufacturer?

A: Yes. Both BZD27C180P RVG and BZD27C180PW are manufactured by Taiwan Semiconductor Corporation and share the same BZD27 base product number.

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