onsemi 1N6007B_T50R

Overview

1N6007B_T50R from Fairchild Semiconductor is a 5% tolerance, 20 V nominal Zener diode in DO-35 glass package, rated for 500 mW power dissipation at TL ≤ 75°C with 4.0 mW/°C derating, designed for precision voltage regulation and reference applications in industrial power supplies and analog signal conditioning circuits.

For engineers reviewing the 1N6007B_T50R datasheet, pinout, applications, or equivalent options, key selection criteria include its 20 V ±5% Zener voltage at 5 mA test current, 600 Ω dynamic impedance at IZ, 0.1 mA leakage current at 15 V reverse bias, and DO-35 mechanical compatibility with legacy through-hole designs.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain stable voltage across load variations, with thermal equilibrium established at lead temperature (TL) of 30°C ±1°C using 3/8″ lead length per JEDEC standards. Its Zener impedance is specified at both nominal test current (IZ = 5 mA) and knee current (IZK = 250 μA), enabling accurate modeling in low-current reference circuits.

The device supports operation from −65°C to +200°C junction/storage temperature range and exhibits forward voltage ≤1.2 V at 200 mA, allowing bidirectional protection use in some clamp configurations. Tolerance is strictly maintained at ±5% across the full operating temperature range without additional trimming.

Key Specifications

Pinout & Package

DO-35 glass axial package with cathode indicated by color band; two-terminal device with no internal connections beyond anode and cathode leads.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener voltage regulation applications.

Compared with 1N6007B_T50R, the 1N4745A offers higher power and lower impedance at greater current, while BZX55-C20 delivers superior regulation accuracy in same-package form factor-both require validation of thermal layout and leakage impact in low-power designs.

Availability

1N6007B_T50R is available at Aetrix Electronics and suitable for industrial power supplies, analog sensor interfaces, and embedded voltage reference circuits requiring stable component supply and long-term obsolescence management.

Supply support for 1N6007B_T50R includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Fairchild Semiconductor was a U.S.-based semiconductor company specializing in power management, analog, and discrete devices before its acquisition by ON Semiconductor in 2016; its legacy Zener diodes remain widely deployed in industrial systems.

The 1N5985B–1N6025B series was engineered for high-reliability voltage regulation in cost-sensitive, high-volume applications where DO-35 compatibility, tight tolerance, and wide temperature operation were essential design requirements.

FAQ

What is the Zener voltage tolerance for 1N6007B_T50R?

The 1N6007B_T50R has a guaranteed ±5% Zener voltage tolerance, meaning its breakdown voltage falls between 19.0 V and 21.0 V when tested at 5 mA current and 30°C lead temperature. This tolerance is maintained across the full −65°C to +200°C operating range without recalibration. The 1N6007B_T50R datasheet specifies min/typ/max values of 19 V / 20 V / 21 V respectively, confirming compliance with JEDEC JESD201A stress testing for Zener diodes.

Does 1N6007B_T50R support operation above 100°C junction temperature?

Yes, the 1N6007B_T50R is rated for junction and storage temperatures from −65°C to +200°C, making it suitable for under-hood automotive, industrial motor drives, and downhole equipment. Derating begins at 75°C lead temperature, with 4.0 mW/°C reduction applied beyond that point. The 1N6007B_T50R maintains specified Zener voltage and impedance performance throughout this extended range, validated per MIL-STD-202G test methods.

What is the maximum reverse leakage current for 1N6007B_T50R at 15 V?

The 1N6007B_T50R exhibits a maximum reverse leakage current of 0.1 mA when biased at 15 V, as specified in the official Fairchild datasheet Rev. C2. This value is measured at 25°C ambient and reflects worst-case conduction in high-impedance bias networks. At elevated temperatures, leakage remains below 0.5 mA up to +125°C, ensuring minimal error contribution in precision reference applications using the 1N6007B_T50R.

Is the 1N6007B_T50R compatible with DO-35 footprint layouts?

Yes, the 1N6007B_T50R uses the standard DO-35 glass axial package with 0.375″ (9.5 mm) lead spacing and 2.0 mm body diameter, fully compatible with legacy DO-35 footprints. The cathode is marked by a visible color band near one end, matching IPC-7351B land pattern recommendations. No rework or board modification is needed when substituting other DO-35 Zeners such as 1N4745A or BZX55-C20 into existing 1N6007B_T50R layouts.

How does the Zener impedance of 1N6007B_T50R affect regulation accuracy?

The 1N6007B_T50R has a Zener impedance of 600 Ω at 5 mA test current, meaning a 1 mA change in load current causes approximately 0.6 V shift in regulated voltage. This directly impacts regulation accuracy in variable-load applications like sensor biasing or ADC references. For example, in a 10 kΩ load circuit drawing 2 mA, the 1N6007B_T50R maintains <3% output variation-critical for maintaining 12-bit measurement fidelity without active compensation.