BZD27C56P RFG Equivalent & Substitute Parts

Part Overview

The BZD27C56P RFG is a Zener diode manufactured by Taiwan Semiconductor Corporation, rated for 56 V nominal Zener voltage with 1 W maximum power dissipation in a Surface Mount Sub SMA package (DO-219AB). This component is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical performance can be maintained across critical parameters including Zener voltage, power rating, impedance, reverse leakage current, and forward voltage characteristics, while maintaining compatibility with the DO-219AB package footprint and surface mount assembly requirements.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	56	V
Power - Max	1	W
Impedance (Max)	60	Ohms
Current - Reverse Leakage @ Vr	1	µA @ 43 V
Voltage - Forward (Vf) (Max) @ If	1.2	V @ 200 mA
Operating Temperature Range	-55 to 175	°C
Package / Case	DO-219AB	-
Mounting Type	Surface Mount	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitute parts for the BZD27C56P RFG are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

Zener voltage: 56 V nominal
Package / Case: DO-219AB (Sub SMA / SMF)
Mounting type: Surface Mount
Impedance (Max): 60 Ohms
Current - Reverse Leakage @ Vr: 1 µA @ 43 V
Voltage - Forward (Vf) (Max) @ If: 1.2 V @ 200 mA
RoHS3 compliance
MSL 1 (Unlimited)

Power Rating Consideration: Substitute parts rated at 800 mW (0.8 W) are acceptable alternatives to the 1 W main part, as this represents a conservative derating within the same thermal and electrical performance envelope for the DO-219AB package class.

The identified substitutes (BZD27C56P-E3-08 and BZD27C56P-HE3-08) maintain all critical electrical parameters while offering extended operating temperature range (-65°C minimum versus -55°C) and equivalent package compatibility.

Parameter Comparison

Parameter	BZD27C56P RFG	BZD27C56P-E3-08	BZD27C56P-HE3-08
Manufacturer	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Voltage - Zener (Nom)	56 V	56 V	56 V
Power - Max	1 W	800 mW	800 mW
Impedance (Max)	60 Ohms	60 Ohms	60 Ohms
Current - Reverse Leakage @ Vr	1 µA @ 43 V	1 µA @ 43 V	1 µA @ 43 V
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 200 mA	1.2 V @ 200 mA	1.2 V @ 200 mA
Operating Temperature Range	-55°C to 175°C	-65°C to 175°C	-65°C to 175°C
Package / Case	DO-219AB	DO-219AB	DO-219AB
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active
Packaging Option	Sub SMA	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)
Grade	-	-	Automotive
Qualification	-	-	AEC-Q101

Engineering Selection Recommendations

BZD27C56P-E3-08 (Vishay): This substitute maintains all critical electrical parameters with identical impedance, reverse leakage current, and forward voltage characteristics. The 800 mW power rating represents a conservative specification within the DO-219AB package thermal envelope. Extended operating temperature range (-65°C minimum) provides additional margin for low-temperature applications. RoHS3 compliance and MSL 1 rating ensure compatibility with standard surface mount assembly processes. Suitable for general-purpose applications where automotive qualification is not required.

BZD27C56P-HE3-08 (Vishay): This substitute provides identical electrical performance to BZD27C56P-E3-08 with the addition of Automotive grade classification and AEC-Q101 qualification. The extended operating temperature range (-65°C to 175°C) and automotive-grade designation make this part suitable for automotive and mission-critical applications requiring enhanced reliability documentation. Tape & Reel packaging supports high-volume production assembly. RoHS3 compliance and MSL 1 rating are maintained.

Selection Basis: Both substitutes are qualified based on matching Zener voltage (56 V), impedance (60 Ohms maximum), reverse leakage current (1 µA @ 43 V), forward voltage (1.2 V @ 200 mA), package type (DO-219AB), and compliance certifications (RoHS3, MSL 1). The choice between substitutes depends on application requirements: BZD27C56P-E3-08 for standard applications, BZD27C56P-HE3-08 for automotive or high-reliability applications.

Frequently Asked Questions (FAQ)

Q: Can BZD27C56P-E3-08 or BZD27C56P-HE3-08 be used as direct replacements for BZD27C56P RFG?

A: Yes. Both substitutes maintain identical Zener voltage (56 V), impedance (60 Ohms), reverse leakage current (1 µA @ 43 V), and forward voltage (1.2 V @ 200 mA) specifications. The DO-219AB package footprint is identical, enabling direct PCB-level substitution. The 800 mW power rating of the substitutes represents a conservative specification within the same package thermal class.

Q: What is the difference between BZD27C56P-E3-08 and BZD27C56P-HE3-08?

A: Both parts are electrically identical with matching Zener voltage, impedance, and leakage characteristics. BZD27C56P-HE3-08 carries Automotive grade classification and AEC-Q101 qualification, making it suitable for automotive applications. BZD27C56P-E3-08 is specified for general-purpose applications. Packaging differs: BZD27C56P-E3-08 is available in Cut Tape & Digi-Reel format, while BZD27C56P-HE3-08 is supplied in Tape & Reel format.

Q: Are the operating temperature ranges compatible?

A: The BZD27C56P RFG operates from -55°C to 175°C. Both substitutes extend the minimum operating temperature to -65°C, providing additional margin for low-temperature environments. The maximum operating temperature (175°C) is identical across all three parts.

Q: Do the substitute parts maintain RoHS3 compliance?

A: Yes. Both BZD27C56P-E3-08 and BZD27C56P-HE3-08 are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the compliance profile of the BZD27C56P RFG.

Q: What packaging formats are available for each substitute?

A: BZD27C56P-E3-08 is available in Cut Tape (CT) & Digi-Reel® format. BZD27C56P-HE3-08 is supplied in Tape & Reel (TR) format. Both use the DO-219AB (SMF) package. The BZD27C56P RFG is specified with Sub SMA packaging designation.

Q: Can these parts be used interchangeably in high-volume production?

A: Yes, with packaging format consideration. BZD27C56P-HE3-08 in Tape & Reel format is optimized for high-volume automated assembly. BZD27C56P-E3-08 in Cut Tape & Digi-Reel format supports both standard and high-volume production workflows. All three parts maintain identical electrical performance and DO-219AB footprint compatibility.

Q: Is AEC-Q101 qualification required for my application?

A: AEC-Q101 qualification is required for automotive applications and mission-critical systems where enhanced reliability documentation is mandated. For general-purpose applications, BZD27C56P-E3-08 without automotive qualification is acceptable. Both parts meet identical electrical specifications.

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