NZX22A,133 Equivalent & Substitute Parts

Part Overview

The NZX22A,133 is an active Zener diode manufactured by Nexperia USA Inc., rated at 21.4 V nominal with 500 mW power dissipation and ±2% tolerance. This through-hole component operates across the temperature range of -55°C to 175°C and is packaged in the DO-204AH (DO-35) axial configuration. The part is ROHS3 compliant and carries unlimited moisture sensitivity classification (MSL 1). Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, design flexibility, or supply chain considerations.

Substiute Parts

NZX22A,133

Nexperia USA Inc.In Stock: 10819NZX22A,133 Datasheet

Current PartRFQ

NZX22B,133

Nexperia USA Inc.In Stock: 10930NZX22B,133 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the NZX22A,133 is permissible with the NZX22B,133 based on the following criteria:

Both parts share identical electrical and mechanical specifications across all critical parameters: maximum power dissipation (500 mW), impedance rating (65 Ohms maximum), reverse leakage current (50 nA @ 15.4 V), forward voltage characteristics (1.5 V @ 200 mA), operating temperature range (-55°C to 175°C), and package configuration (DO-204AH/DO-35 axial through-hole). Both components are manufactured by Nexperia USA Inc. within the NZX series, carry ROHS3 compliance, and maintain MSL 1 classification.

The primary distinction between these parts is the nominal Zener voltage: NZX22A,133 operates at 21.4 V while NZX22B,133 operates at 22.1 V. Both maintain ±2% tolerance, resulting in overlapping voltage ranges suitable for applications where the nominal voltage differential of 0.7 V falls within circuit design tolerances.

Parameter Comparison

Engineering Selection Recommendations

Selection between NZX22A,133 and NZX22B,133 is determined by circuit voltage regulation requirements and tolerance specifications. Both parts maintain active product status with full ROHS3 compliance and REACH unaffected classification, ensuring regulatory compliance across current and future applications.

The NZX22A,133 (21.4 V nominal) is selected for circuits requiring the lower voltage reference point within the NZX22 series. The NZX22B,133 (22.1 V nominal) is selected for circuits requiring the higher voltage reference point. The 0.7 V differential between nominal values, combined with ±2% tolerance on each part, creates distinct operating windows suitable for different voltage regulation targets.

Both components are manufactured in identical package configurations (DO-204AH/DO-35 axial) with matching electrical characteristics across all non-voltage parameters. Substitution is valid when circuit design tolerances accommodate the nominal voltage difference and when both parts are available from the same supplier (Nexperia USA Inc.).

Frequently Asked Questions (FAQ)

Q: Can NZX22B,133 be used as a direct replacement for NZX22A,133?

A: Substitution is valid when circuit design tolerances accommodate a 0.7 V increase in nominal Zener voltage. Both parts share identical power ratings (500 mW), impedance specifications (65 Ohms maximum), temperature ranges (-55°C to 175°C), and package configurations (DO-204AH/DO-35 axial). Voltage regulation performance will shift according to the higher nominal voltage of the NZX22B,133.

Q: Are there package compatibility concerns between these parts?

A: No. Both NZX22A,133 and NZX22B,133 use identical package specifications: DO-204AH (DO-35) axial through-hole configuration with ALF2 supplier device package designation. PCB footprints and lead spacing are identical.

Q: What compliance certifications apply to both parts?

A: Both parts carry ROHS3 compliance and REACH unaffected status. Moisture sensitivity level is classified as MSL 1 (unlimited) for both components, indicating no moisture-related handling restrictions during storage or assembly.

Q: How do the ±2% tolerances affect substitution between these parts?

A: NZX22A,133 operates within 20.972 V to 21.828 V (±2% of 21.4 V). NZX22B,133 operates within 21.658 V to 22.542 V (±2% of 22.1 V). These ranges overlap between 21.658 V and 21.828 V, creating a common operating window. Substitution validity depends on whether the circuit design tolerance encompasses both nominal voltage points.

Q: Are both parts currently in active production?

A: Yes. Both NZX22A,133 and NZX22B,133 maintain active product status with Nexperia USA Inc. Current inventory levels are 10,716 units (NZX22A,133) and 10,834 units (NZX22B,133) in cut tape packaging.