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1N4703 TR TIN/LEAD
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Product Detailed Parameters
- Description：16V 500MW TH DIODE-ZENER SINGLE:
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：16 V
- Tolerance：±5%
- Power - Max：500 mW
- Impedance (Max) (Zzt)：-
- Current - Reverse Leakage @ Vr：50 nA @ 12.1 V
- Operating Temperature：-65°C ~ 200°C (TJ)
- Mounting Type：Through Hole
- Package / Case：DO-204AH, DO-35, Axial
- Voltage - Forward (Vf) (Max) @ If：1.5 V @ 100 mA
- Grade：-
- Qualification：-
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Overview
The Central Semiconductor Corp 1N4703 TR TIN/LEAD is a silicon unidirectional Zener diode housed in the DO-35 axial through-hole package. It provides a nominal Zener voltage of 16V with a tight tolerance of 2%. The device is rated for a maximum power dissipation of 0.5W and operates within an ambient temperature range from -65°C to +200°C. This component utilizes tin/lead terminations and is supplied in tape-and-reel packaging, suitable for automated surface mounting processes despite its through-hole form factor.
Feature Summary
- High thermal stability allowing operation up to 200°C
- Precision voltage regulation with 2% tolerance
- Robust axial leaded construction for reliable circuit integration
Applications
- Voltage reference circuits requiring stable 16V levels
- Overvoltage protection stages in sensitive electronics
- Clamping applications in signal processing paths
Procurement Notes
Verify that the specific ordering suffix corresponds to the tape-and-reel configuration rather than bulk packaging. Confirm the terminal plating matches the required tin/lead specification for solderability and regulatory compliance. Ensure the 2% tolerance variant is selected if tighter voltage accuracy is critical for the design.
Selection Notes
Select this component when a precise 16V reference is needed in a compact axial package. The 0.5W power rating supports moderate current loads. Consider the high maximum operating temperature of 200°C for environments where standard silicon limits are insufficient. Verify compatibility with automated assembly equipment due to the reel packaging format.
Part Context
This part belongs to the 1N47 series of Zener diodes manufactured by Central Semiconductor. These components are widely used for general-purpose voltage regulation and protection. The 1N4703 specifically targets the 16V segment of this family, offering higher precision than standard 5% tolerance variants found in other series.
Replacement Considerations
Cross-reference with other manufacturers' 1N4703 equivalents. Verify pinout compatibility and ensure replacement parts meet the same 2% voltage tolerance and 0.5W power dissipation ratings.
