1PGSMA120Z Equivalent & Substitute Parts

Part Overview

The 1PGSMA120Z is an active-status Zener diode manufactured by Taiwan Semiconductor Corporation, designed for voltage regulation and protection applications. This surface-mount component operates at a nominal Zener voltage of 120 V with a maximum power dissipation of 1.25 W in the DO-214AC (SMA) package. The part is ROHS3 compliant and carries unlimited moisture sensitivity rating (MSL 1), making it suitable for standard manufacturing environments. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

1PGSMA120Z

Taiwan Semiconductor CorporationIn Stock: 10291PGSMA120Z Datasheet

Current PartRFQ

1SMA120Z

Taiwan Semiconductor CorporationIn Stock: 80181SMA120Z Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1PGSMA120Z is based on strict equivalence of the following electrical and mechanical parameters:

Critical Substitution Criteria:

• Nominal Zener voltage: 120 V
• Voltage tolerance: ±5%
• Maximum power dissipation: 1.25 W
• Maximum impedance: 550 Ohms
• Reverse leakage current: 1 µA @ 91.2 V
• Forward voltage: 1.2 V @ 200 mA
• Operating temperature range: -55°C to 175°C
• Package type: DO-214AC (SMA) surface mount
• Compliance: ROHS3, MSL 1

The substitute part 1SMA120Z meets all specified electrical parameters and mechanical requirements, confirming direct substitutability in applications requiring the 1PGSMA120Z.

Parameter Comparison

Engineering Selection Recommendations

The 1SMA120Z is a direct parametric equivalent to the 1PGSMA120Z. Both components are manufactured by Taiwan Semiconductor Corporation and carry identical electrical specifications, mechanical packaging, and regulatory compliance status (ROHS3, MSL 1, REACH Unaffected, EAR99 classification). Selection between these parts is determined by availability and supply chain requirements rather than technical performance differences. The 1SMA120Z currently maintains higher inventory levels (7916 Pcs) compared to the 1PGSMA120Z (985 Pcs), making it suitable for high-volume procurement scenarios. Both parts are active-status products with no known obsolescence risk.

Frequently Asked Questions (FAQ)

Q: Can the 1SMA120Z be used as a direct replacement for the 1PGSMA120Z in existing designs?

A: Yes. The 1SMA120Z is electrically and mechanically equivalent to the 1PGSMA120Z across all specified parameters, including Zener voltage (120 V ±5%), power rating (1.25 W), impedance (550 Ohms max), operating temperature range (-55°C to 175°C), and package type (DO-214AC SMA). No circuit modifications are required.

Q: Are there any differences in manufacturing or compliance between these parts?

A: Both parts are manufactured by Taiwan Semiconductor Corporation and carry identical compliance certifications: ROHS3 compliant, MSL 1 (unlimited moisture sensitivity), REACH unaffected, and EAR99 classification. No compliance-related differences exist.

Q: What is the significance of the DO-214AC (SMA) package designation?

A: DO-214AC is the industry-standard surface-mount package for small-signal diodes and Zener diodes. The SMA designation confirms compatibility with standard pick-and-place assembly equipment and PCB footprints. Both substitute parts use this identical package, ensuring mechanical interchangeability.

Q: How do the impedance specifications affect substitution?

A: Maximum impedance of 550 Ohms is a critical parameter for Zener diode performance in voltage regulation circuits. Both the 1PGSMA120Z and 1SMA120Z meet this specification identically, ensuring equivalent transient response and regulation characteristics.

Q: Is the reverse leakage current specification important for substitution?

A: Yes. The reverse leakage current of 1 µA @ 91.2 V defines the standby current behavior of the Zener diode. Identical specifications between parts ensure equivalent performance in low-power standby applications and circuit reliability.

Q: Can these parts be used interchangeably in high-temperature applications?

A: Yes. Both parts operate across the identical temperature range of -55°C to 175°C (junction temperature). No thermal performance differences exist between the 1PGSMA120Z and 1SMA120Z.