ChipApex | Global Electronic Components Supplier
1N4742AP/TR12
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：DIODE ZENER 12V 1W DO204AL
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：12 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：9 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 9.1 V
- Operating Temperature：-65°C ~ 150°C
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 200 mA
- Grade：-
- Qualification：-
Download product information
Overview
The Microchip Technology 1N4742AP/TR12 is a silicon 1.0-watt Zener diode in the 1N4728AP through 1N4764AP series, housed in a plastic DO-41 (DO-204AL) axial-lead package with tape and reel packaging. It provides voltage regulation at a nominal Zener voltage of 12 V with a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +150°C and features a maximum dynamic impedance of 9 Ohms at a test current of 21 mA. Maximum reverse leakage current is specified at 5 µA.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Features flexible axial-lead mounting terminals for standard circuit integration
- Constructed with a void-free transfer molded thermosetting epoxy body
Applications
- Voltage regulation circuits requiring 12 V reference
- Power supply protection against overvoltage conditions
- General-purpose electronic equipment utilizing axial-lead components
Procurement Notes
Verify that the component matches the specific JEDEC type number and suffix requirements for your application. Confirm the manufacturer origin and RoHS compliance status if environmental regulations apply. Ensure the tape and reel packaging aligns with your automated assembly equipment specifications before finalizing procurement orders.
Selection Notes
Select this component when a 12 V Zener voltage with 5% tolerance is required in an axial-lead package. Consider the 1.0 W power dissipation rating and thermal resistance characteristics for heat management. Verify that the operating temperature range meets the environmental demands of the target system design.
Part Context
This part belongs to the popular 1N4728AP through 1N4764AP series of 1.0 watt Zener diodes manufactured by Microsemi (now Microchip Technology). The series offers extensive voltage selection from 3.3 to 100 volts. These plastic encapsulated devices are moisture classified as Level 1 and do not require dry packing.
Replacement Considerations
Surface mount equivalents such as SMAJ4742A or MLL4742A are available for the same voltage rating. Consult the factory for other surface mount options or tighter tolerance variants identified by different suffix letters.
