BZT52C13-13 Equivalent & Substitute Parts

Part Overview

The BZT52C13-13 is a Zener diode rated at 13 V nominal voltage with 500 mW maximum power dissipation in a surface mount SOD-123 package. Manufactured by Diodes Incorporated, this component is designed for voltage regulation and protection applications requiring precise 13 V reference voltage.

The BZT52C13-13 is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent substitute components. Active alternatives are available from multiple manufacturers with comparable electrical characteristics and identical package specifications, enabling direct replacement in existing designs.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	13	V
Tolerance	±6%	-
Power - Max	500	mW
Impedance (Max)	30	Ohms
Current - Reverse Leakage @ Vr	100	nA @ 8 V
Voltage - Forward (Vf) (Max) @ If	900	mV @ 10 mA
Operating Temperature Range	-65 to 150	°C
Mounting Type	Surface Mount	-
Package / Case	SOD-123	-

Substitute Part Grouping Explanation

Substitution of the BZT52C13-13 is determined by the following critical parameters:

Primary Substitution Criteria:

Zener voltage: 13 V nominal
Package type: SOD-123 surface mount
Mounting type: Surface mount
Operating temperature range: Minimum -65°C to 150°C coverage

Secondary Compatibility Parameters:

Power dissipation rating: 200 mW minimum (BZT52C13-TP operates at reduced power)
Voltage tolerance: ±2% to ±6% acceptable
Impedance: 25 to 30 Ohms maximum
Reverse leakage current: 50 to 100 nA range

All identified substitute parts meet the primary substitution criteria. Variations in power rating, tolerance, and impedance reflect different manufacturer specifications while maintaining functional equivalence for 13 V Zener regulation applications.

Parameter Comparison

Parameter	BZT52C13-13	BZT52C13-TP	BZT52B13-E3-08	MMSZ4700T1G
Manufacturer	Diodes Incorporated	Micro Commercial Co	Vishay General Semiconductor	onsemi
Voltage - Zener (Nom)	13 V	13 V	13 V	13 V
Tolerance	±6%	±6%	±2%	±5%
Power - Max	500 mW	200 mW	410 mW	500 mW
Impedance (Max)	30 Ohms	30 Ohms	25 Ohms	Not specified
Current - Reverse Leakage @ Vr	100 nA @ 8 V	100 nA @ 8 V	100 nA @ 10 V	50 nA @ 9.8 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	Not specified	900 mV @ 10 mA
Operating Temperature Range	-65 to 150°C	-65 to 150°C	-65 to 150°C	-55 to 150°C
Package / Case	SOD-123	SOD-123	SOD-123	SOD-123
Product Status	Discontinued	Active	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: MMSZ4700T1G (onsemi)

The MMSZ4700T1G provides the closest electrical match to the BZT52C13-13 with identical 13 V nominal voltage and 500 mW power rating. This component is actively manufactured, ROHS3 compliant, and maintains the same forward voltage and reverse leakage characteristics. High inventory availability (47,200 units) ensures supply continuity. The operating temperature range extends to -55°C minimum, which covers the original -65°C specification for most applications.

Secondary Recommendation: BZT52B13-E3-08 (Vishay General Semiconductor)

The BZT52B13-E3-08 offers superior voltage tolerance (±2% versus ±6%) and lower impedance (25 Ohms), providing tighter voltage regulation. Power rating of 410 mW accommodates most applications requiring the original 500 mW specification. Active product status and ROHS3 compliance ensure long-term availability. This component is suitable for designs requiring enhanced voltage accuracy.

Alternative: BZT52C13-TP (Micro Commercial Co)

The BZT52C13-TP maintains identical electrical specifications to the original part except for reduced power dissipation (200 mW). This component is appropriate for applications where thermal constraints limit power dissipation or where circuit design operates below 200 mW. Active status and ROHS3 compliance support production use.

Frequently Asked Questions (FAQ)

Q: Can the BZT52C13-TP be used as a direct replacement for the BZT52C13-13?

A: The BZT52C13-TP is electrically compatible with identical voltage and tolerance specifications. However, the power rating is reduced from 500 mW to 200 mW. Direct substitution is valid only if circuit design operates within the 200 mW power dissipation limit. Thermal analysis of the application is required to confirm suitability.

Q: What is the difference between the BZT52B13-E3-08 and BZT52C13-13?

A: Both components provide 13 V Zener voltage in SOD-123 packaging. The BZT52B13-E3-08 offers tighter voltage tolerance (±2% versus ±6%), lower impedance (25 Ohms versus 30 Ohms), and slightly lower power rating (410 mW versus 500 mW). These differences result in improved voltage regulation accuracy with the Vishay component.

Q: Is the MMSZ4700T1G a pin-for-pin replacement?

A: Yes. The MMSZ4700T1G is housed in the same SOD-123 package with identical pin configuration. Electrical specifications match the original BZT52C13-13 for voltage, power rating, and forward voltage characteristics, enabling direct board-level substitution.

Q: Does the operating temperature range difference between MMSZ4700T1G (-55°C to 150°C) and BZT52C13-13 (-65°C to 150°C) affect substitution?

A: The MMSZ4700T1G minimum operating temperature of -55°C is suitable for most commercial and industrial applications. Substitution is valid unless the design specifically requires operation below -55°C. Applications requiring -65°C minimum operation should use BZT52B13-E3-08 or BZT52C13-TP, both rated to -65°C.

Q: Are all substitute parts RoHS compliant?

A: Yes. All three active substitute components (BZT52C13-TP, BZT52B13-E3-08, and MMSZ4700T1G) are ROHS3 compliant. The original BZT52C13-13 is RoHS non-compliant, making the substitutes preferable for new designs and RoHS-regulated applications.

Q: What packaging options are available for these Zener diodes?

A: All substitute components are supplied in SOD-123 surface mount packaging. BZT52C13-TP is available in Tape & Reel (TR) format. MMSZ4700T1G is available in Cut Tape (CT) and Digi-Reel format. BZT52B13-E3-08 is available in Tape & Reel format. Packaging selection depends on production volume and assembly requirements.

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