BZV55C16-TP Equivalent & Substitute Parts

Part Overview

The BZV55C16-TP is a Zener diode rated at 16 V nominal with 500 mW power dissipation, manufactured by Micro Commercial Co in a Mini MELF surface mount package. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity. Substitute parts must maintain electrical performance within the specified tolerance and operating parameters while accommodating different package configurations.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	16	V
Tolerance	±6%	%
Power - Max	500	mW
Impedance (Max)	40	Ohms
Current - Reverse Leakage @ Vr	100	nA
Operating Temperature Range	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	DO-213AC, MINI-MELF, SOD-80	—

Substitute Part Grouping Explanation

Substitution of the BZV55C16-TP is determined by the following critical parameters:

Electrical Equivalence Criteria:

Zener voltage (Nom): 16 V
Tolerance: ±6%
Power rating: 500 mW minimum
Impedance (Max): 40 Ohms or lower
Reverse leakage current: 100 nA or lower at specified reverse voltage

Mechanical Compatibility Criteria:

Surface mount mounting type
Package footprint compatibility with application PCB design

Substitute parts BZT52C16-TP and BZV55C16 satisfy these electrical parameters. However, package differences require mechanical verification during implementation. BZT52C16-TP uses SOD-123 packaging, while BZV55C16 uses DO-213AA packaging, both differing from the original Mini MELF configuration.

Parameter Comparison

Parameter	BZV55C16-TP (Main)	BZT52C16-TP (Substitute)	BZV55C16 (Substitute)
Manufacturer	Micro Commercial Co	Micro Commercial Co	Microchip Technology
Voltage - Zener (Nom)	16 V	16 V	16 V
Tolerance	±6%	±6%	±6%
Power - Max	500 mW	500 mW	Not specified
Impedance (Max)	40 Ohms	40 Ohms	Not specified
Current - Reverse Leakage @ Vr	100 nA @ 12 V	100 nA @ 11.2 V	50 nA @ 11.2 V
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 200 mA	900 mV @ 10 mA	1.1 V @ 200 mA
Operating Temperature Range	-55 to 150 °C	-65 to 150 °C	-65 to 175 °C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-213AC, MINI-MELF, SOD-80	SOD-123	DO-213AA (Glass)
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant

Engineering Selection Recommendations

BZT52C16-TP Selection: This substitute maintains full electrical equivalence with the BZV55C16-TP across all specified parameters. The part is manufactured by the same supplier (Micro Commercial Co) and carries active product status, ensuring long-term availability. ROHS3 compliance is maintained. The SOD-123 package requires PCB layout modification from the original Mini MELF footprint. This option is suitable for new designs or redesigns where package transition is feasible.

BZV55C16 Selection: This substitute, manufactured by Microchip Technology, provides electrical equivalence in zener voltage, tolerance, and reverse leakage characteristics. The part carries active product status and supports an extended operating temperature range (-65 to 175 °C versus -55 to 150 °C). However, this part is RoHS non-compliant, which may conflict with regulatory requirements in certain applications. The DO-213AA glass package differs from the original Mini MELF configuration. This option is applicable only where RoHS compliance is not mandated.

Primary Recommendation: BZT52C16-TP is the preferred substitute due to maintained ROHS3 compliance, active product status, and full electrical parameter equivalence. Package transition from Mini MELF to SOD-123 requires PCB redesign validation.

Frequently Asked Questions (FAQ)

Q: Can BZT52C16-TP be used as a direct drop-in replacement for BZV55C16-TP?

A: BZT52C16-TP provides electrical equivalence but not mechanical compatibility. The SOD-123 package footprint differs from Mini MELF, requiring PCB layout modification. Electrical performance is maintained across all specified parameters.

Q: What is the primary reason for substituting the BZV55C16-TP?

A: The BZV55C16-TP is classified as obsolete. BZT52C16-TP and BZV55C16 are active products with assured long-term availability and supply continuity.

Q: Are there temperature range differences between the main part and substitutes?

A: Yes. BZV55C16-TP operates from -55 to 150 °C. BZT52C16-TP extends the lower limit to -65 °C while maintaining the 150 °C upper limit. BZV55C16 extends both limits to -65 to 175 °C. Application thermal requirements determine suitability.

Q: Does RoHS compliance differ between substitutes?

A: Yes. BZV55C16-TP and BZT52C16-TP are ROHS3 compliant. BZV55C16 is RoHS non-compliant. Regulatory requirements in the target application determine acceptability.

Q: What are the impedance specifications for the substitute parts?

A: BZT52C16-TP specifies impedance (Max) at 40 Ohms, matching the main part. BZV55C16 does not provide impedance specification in the available data.

Q: How do reverse leakage currents compare?

A: BZV55C16-TP specifies 100 nA @ 12 V. BZT52C16-TP specifies 100 nA @ 11.2 V. BZV55C16 specifies 50 nA @ 11.2 V, indicating lower leakage. All values remain within acceptable limits for 16 V zener applications.

Q: Which substitute is recommended for new designs?

A: BZT52C16-TP is recommended for new designs. It maintains ROHS3 compliance, carries active product status, and provides full electrical equivalence. PCB layout must accommodate the SOD-123 package footprint.

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