1N5242B-T Zener Diode with 12V nominal voltage, 500mW power dissipation, ±5% tolerance. Packaged in DO-35 (DO-204AH) for through-hole mounting.
Mfr Part #:

1N5242B-T

Available from 1 distributors
Mfr Name: Vishay Dale
Vishay Dale
Zener Diode with 12V nominal voltage, 500mW power dissipation, ±5% tolerance. Packaged in DO-35 (DO-204AH) for through-hole mounting.
Total Stock: 8,000 pcs

1N5242B-T Available from 1 distributor

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1N5242B-T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Impedance (Max) (Zzt)
Lead Style
Mounting Type
Operating Temperature
Polarity
Power
Storage Temperature
Supplier Device Package
Tape & Reel
Terminal Finish
Tolerance
Voltage
Voltage - Forward (Vf) (Max) @ If

1N5242B-T Description

Short technical summary and product information.

The 1N5242B-T is a 12V Zener diode with a maximum power dissipation of 500mW. It offers a nominal Zener voltage of 12V with ±5% tolerance, ensuring stable voltage regulation in low-power circuits. The diode features a maximum impedance of 600Ω at a test current of 20mA and a reverse leakage current of 1µA at 9.1V. Forward voltage is 1.1V at 200mA. It operates over a junction temperature range of -65°C to +175°C.

 

Packaged in a DO-35 (DO-204AH) axial leaded glass case, the 1N5242B-T is designed for through-hole mounting. The cathode is identified by a band. The terminal finish is Sn96.5Ag3.5, and the part is RoHS compliant (RoHS3) with MSL Level 1 (unlimited) moisture sensitivity. It is part of the 1N5221B-1N5267B series of 500mW epitaxial Zener diodes.

 

Typical applications include voltage regulation, reference voltage sources, overvoltage clamping, and bias networks in consumer, industrial, and automotive electronics where through-hole assembly is preferred.

1N5242B-T Quick Information

Product Type: Zener Diode
Series: 1N5221B-1N5267B
Canonical Name: DIODE ZENER 12V 500MW DO35
Subcategory: Zener - Single

1N5242B-T Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): Level 1 (Unlimited)
REACH Status: Non-Compliant
Lead Free: Yes

1N5242B-T Features

  • 12V nominal Zener voltage.
  • 500mW power dissipation rating.
  • ±5% tolerance for precision.
  • DO-35 through-hole glass package.
  • RoHS compliant lead-free finish.

1N5242B-T Applications

  • Voltage regulation in low-power circuits.
  • Reference voltage for analog circuits.
  • Overvoltage protection in DC lines.
  • Clamping in bias networks.

1N5242B-T FAQs

7 frequently asked questions generated from this part’s specifications.
What is the nominal Zener voltage?

12V.

What is the power dissipation rating?

500mW.

What is the tolerance?

±5%.

What is the forward voltage?

1.1V at 200mA.

What is the package type?

DO-35 (DO-204AH) axial leaded package.

What is the operating temperature range?

-65°C to +175°C (junction).

Is this part RoHS compliant?

Yes, RoHS3 compliant per datasheet.

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