Equivalent & Substitute Parts for PZM16NB,115

Part Overview

The PZM16NB,115 is a 16V Zener diode in a surface mount SMT3 (TO-236-3, SC-59, SOT-23-3) package, with a power rating of 300 mW and ±5% voltage tolerance. This component is now listed as Obsolete. Identifying direct substitute and equivalent models is essential to ensure continued availability and maintain design integrity, especially given the discontinued status of the PZM16NB,115.

Key Parameters

Parameter	PZM16NB,115 Value
Voltage - Zener (Nom) (Vz)	16 V
Tolerance	±5%
Power - Max	300 mW
Impedance (Max) (Zzt)	20 Ohms
Current - Reverse Leakage @ Vr	70 nA @ 12 V
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 100 mA
Operating Temperature	-65°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	TO-236-3, SC-59, SOT-23-3
Supplier Device Package	SMT3; MPAK
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8541.10.0050

Substitute Part Grouping Explanation

Substitute and equivalent Zener diodes are identified by matching the following explicit parameters:

Zener voltage: 16 V nominal
Voltage tolerance: ±5%
Power rating: 300 mW
Maximum impedance (Zzt)
Reverse leakage current at specified voltage
Maximum forward voltage
Operating temperature range
Package/case: TO-236-3, SC-59, SOT-23-3, or equivalents
Surface mount compatibility
RoHS and REACH compliance, MSL, ECCN, and HTSUS codes

Only parts meeting these provided conditions are considered valid substitutes.

Parameter Comparison

Parameter	PZM16NB,115 (NXP USA Inc.)	CZRT5246B-G (Comchip Technology)
Voltage - Zener (Nom) (Vz)	16 V	16 V
Tolerance	±5%	±5%
Power - Max	300 mW	300 mW
Impedance (Max) (Zzt)	20 Ohms	17 Ohms
Current - Reverse Leakage @ Vr	70 nA @ 12 V	100 nA @ 12 V
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 100 mA	900 mV @ 10 mA
Operating Temperature	-65°C ~ 150°C	-65°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
Supplier Device Package	SMT3; MPAK	SOT-23-3
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8541.10.0050	8541.10.0050

Engineering Selection Recommendations

Given the obsolete status of PZM16NB,115, selection of its substitutes should prioritize parts with active product status and matching compliance and certification (ROHS3, REACH, MSL 1). CZRT5246B-G meets all provided environmental, compliance, and package requirements appropriate for direct substitution.

Frequently Asked Questions (FAQ)

Q: What are the critical electrical parameters to verify when selecting a substitute for PZM16NB,115?
A: The key parameters are Zener voltage (16V nominal), tolerance (±5%), maximum power rating (300 mW), impedance, reverse leakage current, and forward voltage.

Q: Are package differences relevant for substitution between PZM16NB,115 and CZRT5246B-G?
A: Both parts specify the same package types: TO-236-3, SC-59, SOT-23-3, and are intended for surface mount use. Mounting compatibility is maintained.

Q: Is compliance status (ROHS, REACH) matched in the substitute?
A: Both PZM16NB,115 and CZRT5246B-G are ROHS3 Compliant and REACH Unaffected, with an MSL of 1 (Unlimited).

Q: Can a substitute part be used without further validation if its product status is Active?
A: Substitution is based strictly on matching provided parameters, product status, and compliance. No additional validation criteria are included in this reference.

Q: What should be considered regarding inventory and lifecycle?
A: Substitute parts with Active status and available inventory are preferable due to the Obsolete status of the PZM16NB,115.

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