BZD17C27P RVG Equivalent & Substitute Parts

Part Overview

The BZD17C27P RVG is a 27 V Zener diode rated at 800 mW, manufactured by Taiwan Semiconductor Corporation in Sub SMA surface mount packaging. This component is classified as Active and complies with ROHS3 and REACH standards. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required for design flexibility, supply chain alternatives, or specific application requirements.

Key Parameters

Parameter	Value
Voltage - Zener (Nom)	27 V
Power - Max	800 mW
Impedance (Max)	15 Ohms
Current - Reverse Leakage @ Vr	1 µA @ 20 V
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 200 mA
Operating Temperature Range	-55°C ~ 175°C (TJ)
Mounting Type	Surface Mount
Package / Case	DO-219AB
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the BZD17C27P RVG is determined by the following critical parameters:

Electrical Equivalence Criteria:

Zener voltage: 27 V nominal
Maximum power dissipation: 800 mW or greater
Impedance (Max): 15 Ohms or less
Reverse leakage current: 1 µA @ 20 V or less
Forward voltage: 1.2 V @ 200 mA or less

Mechanical Compatibility Criteria:

Surface mount mounting type
DO-219AB package or equivalent sub-miniature form factor
Tape & Reel packaging format

Compliance Requirements:

ROHS3 Compliant
REACH Unaffected status
Active product status

Substitute parts are grouped into two categories: MFR Recommended (higher power rating with different package) and Similar (identical electrical and mechanical specifications with alternative manufacturers or automotive qualification).

Parameter Comparison

Parameter	BZD17C27P RVG (Main)	BZD27C27PW (MFR Recommended)	BZD27C27P-E3-08 (Similar)	BZD27C27P-HE3-08 (Similar)
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Voltage - Zener (Nom)	27 V	27 V	27 V	27 V
Tolerance	±7.03%	±5%	-	-
Power - Max	800 mW	1 W	800 mW	800 mW
Impedance (Max)	15 Ohms	15 Ohms	15 Ohms	15 Ohms
Current - Reverse Leakage @ Vr	1 µA @ 20 V	1 µA @ 20 V	1 µA @ 20 V	1 µA @ 20 V
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 200 mA	1 V @ 200 mA	1.2 V @ 200 mA	1.2 V @ 200 mA
Operating Temperature Range	-55°C ~ 175°C	-55°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-219AB (Sub SMA)	SOD-123W	DO-219AB (SMF)	DO-219AB (SMF)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active
Grade	Standard	Standard	Standard	Automotive
Qualification	-	-	-	AEC-Q101

Engineering Selection Recommendations

BZD27C27PW (MFR Recommended Substitute): This part is recommended when higher power dissipation capacity is required. It provides 1 W maximum power rating compared to the 800 mW of the main part, with improved forward voltage characteristics (1 V @ 200 mA versus 1.2 V @ 200 mA). The trade-off is a different package format (SOD-123W instead of DO-219AB), which requires PCB layout modification. Both parts are manufactured by Taiwan Semiconductor Corporation and maintain ROHS3 compliance and identical operating temperature range.

BZD27C27P-E3-08 (Similar Substitute - Vishay): This part provides direct electrical and mechanical equivalence to the main part. It maintains the same 27 V zener voltage, 800 mW power rating, DO-219AB package, and 15 Ohms impedance. The manufacturer is Vishay General Semiconductor - Diodes Division. Operating temperature range extends to -65°C (lower minimum), providing broader thermal coverage. No tolerance specification is provided for this part. ROHS3 compliance is maintained.

BZD27C27P-HE3-08 (Similar Substitute - Vishay Automotive): This part is electrically and mechanically identical to BZD27C27P-E3-08 with the addition of automotive-grade qualification (AEC-Q101). It is suitable for applications requiring automotive component standards. All electrical parameters, package format (DO-219AB), and compliance certifications remain equivalent to the main part.

Frequently Asked Questions (FAQ)

Q: Can BZD27C27PW be used as a direct replacement for BZD17C27P RVG?

A: BZD27C27PW is electrically compatible but requires PCB layout modification. The main part uses DO-219AB (Sub SMA) packaging, while BZD27C27PW uses SOD-123W packaging. The footprints are different and cannot be interchanged without redesign. BZD27C27PW offers higher power dissipation (1 W versus 800 mW) and improved forward voltage characteristics, making it suitable for applications requiring greater thermal headroom.

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

A: Both parts are electrically and mechanically identical with 27 V zener voltage, 800 mW power rating, and DO-219AB packaging. The primary difference is that BZD27C27P-HE3-08 carries automotive-grade qualification (AEC-Q101), making it suitable for automotive applications. BZD27C27P-E3-08 is the standard industrial version. Both are manufactured by Vishay General Semiconductor - Diodes Division.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (BZD27C27PW, BZD27C27P-E3-08, and BZD27C27P-HE3-08) are ROHS3 Compliant and REACH Unaffected, matching the compliance status of the main part BZD17C27P RVG.

Q: What is the operating temperature range difference between the main part and Vishay substitutes?

A: The main part BZD17C27P RVG operates from -55°C to 175°C. Both Vishay substitutes (BZD27C27P-E3-08 and BZD27C27P-HE3-08) operate from -65°C to 175°C, providing a 10°C lower minimum operating temperature. This extended range may be beneficial for applications in extreme cold environments.

Q: Can I use BZD27C27P-HE3-08 in non-automotive applications?

A: Yes. BZD27C27P-HE3-08 is an automotive-qualified component that meets or exceeds industrial standards. It can be used in non-automotive applications without restriction. The AEC-Q101 qualification indicates enhanced reliability and quality assurance, which may provide additional confidence in non-automotive designs.

Q: What is the tolerance difference between the main part and BZD27C27PW?

A: The main part BZD17C27P RVG has a tolerance of ±7.03%, while BZD27C27PW has a tighter tolerance of ±5%. This means BZD27C27PW provides better zener voltage accuracy, which may be important for precision voltage regulation applications.

Q: Are the impedance specifications identical across all parts?

A: Yes. All parts listed (main part and all substitutes) have a maximum impedance of 15 Ohms, ensuring equivalent dynamic impedance characteristics for voltage regulation performance.

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