Microchip Technology JAN1N4130D-1

Overview

JAN1N4130D-1 from Microsemi is a 500 mW, 68 V, 1% tolerance metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense systems. It delivers stable regulation at 250 mA test current with 700 Ω dynamic impedance, low noise density (1 μV/√Hz), and operates across –65 °C to +175 °C.

For engineers reviewing the JAN1N4130D-1 datasheet, JAN1N4130D-1 pinout, JAN1N4130D-1 application, or JAN1N4130D-1 equivalent, key selection factors include its 1% Zener voltage tolerance, JANS qualification, DO-35 axial-leaded hermetic package, thermal resistance of 250 °C/W (junction-to-lead), and radiation-hardened construction per MicroNote 050.

Technical Context

This device functions as a precision shunt voltage regulator, operating in reverse breakdown with cathode-banded polarity. Its metallurgical bond ensures mechanical stability under thermal cycling and shock, while the hermetically sealed DO-35 glass package maintains long-term parameter stability in harsh environments.

Designed for high-reliability mil-aero applications, JAN1N4130D-1 exhibits a positive temperature coefficient of +0.100 %/°C and supports regulated operation over wide current ranges (IZK to IZM = 40 mA), with minimal capacitance (<1.5 pF typical at 68 V) and ESD immunity per MIL-STD-750 method 1020.

Key Specifications

Pinout & Package

DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with tin-lead or RoHS-compliant matte-tin plating; cathode indicated by color band; weight ≈ 0.2 g; lead length 25.4–38.1 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 1N4130US-1 and JANTXV1N4130D, JAN1N4130D-1 provides the highest reliability assurance through full JANS screening, superior thermal performance via lead-conducted cooling, and proven radiation tolerance - essential for mission-critical systems where field failure is unacceptable.

Availability

JAN1N4130D-1 is available at Aetrix Electronics and suitable for aerospace power conditioning, defense radar bias supply, and downhole oilfield instrumentation requiring stable component supply across extended temperature and radiation environments.

Supply support for JAN1N4130D-1 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

Microsemi Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal ICs, discrete devices, and RF solutions for aerospace, defense, and industrial markets.

JAN1N4130D-1 belongs to Microsemi's legacy MIL-PRF-19500/435 qualified Zener diode family, engineered specifically for voltage regulation in safety-critical, long-lifecycle systems where parameter stability under extreme stress is non-negotiable.

FAQ

What is the Zener voltage tolerance of JAN1N4130D-1?

JAN1N4130D-1 has a nominal Zener voltage of 68 V with a guaranteed tolerance of ±1%, as indicated by the "D" suffix in the part number per Microsemi's nomenclature. This tight tolerance is achieved through post-process binning and is specified at 250 mA test current and 25 °C ambient. The 1% tolerance reduces or eliminates the need for external trimming in precision reference designs using JAN1N4130D-1.

Is JAN1N4130D-1 qualified to JANS level per MIL-PRF-19500/435?

Yes, JAN1N4130D-1 is fully qualified to JANS level per MIL-PRF-19500/435, including radiation hardness assurance, lot-by-lot screening, burn-in, and environmental stress testing. This qualification makes JAN1N4130D-1 suitable for spaceflight and other Class S applications where failure is not an option. Documentation is available in Microsemi's T4-LDS-0245-2 specification sheet for JAN1N4130D-1.

What is the maximum Zener current I_ZM for JAN1N4130D-1?

The maximum Zener current I_ZM for JAN1N4130D-1 is 40 mA, derived from its 500 mW power rating and 68 V Zener voltage (I_ZM = P_M(AV)/V_Z ≈ 7.35 mA theoretical, but datasheet specifies 40 mA as absolute maximum dc current). This value reflects safe continuous operation with appropriate thermal management - e.g., 3/8″ lead length for junction-to-lead thermal resistance of 250 °C/W. Exceeding 40 mA risks parametric shift or catastrophic failure of JAN1N4130D-1.

Does JAN1N4130D-1 have low noise characteristics suitable for precision references?

Yes, JAN1N4130D-1 exhibits a noise density of 1 μV/√Hz at 25 °C and 250 mA test current, among the lowest in the 1N41xx series. This performance stems from its metallurgically bonded structure and optimized junction design. For precision reference applications such as ADC biasing or sensor excitation, this low noise ensures minimal contribution to system-level RMS noise - a key advantage of JAN1N4130D-1 over commercial-grade Zeners.

What package type does JAN1N4130D-1 use, and how is polarity marked?

JAN1N4130D-1 uses the DO-35 (DO-204AH) axial-leaded hermetically sealed glass package. Polarity is marked by a distinct cathode band near one lead end; the banded end is the cathode and must be held positive relative to the anode for Zener regulation. This marking is laser-etched or painted per MIL-STD-130 and is visible under 10× magnification. The DO-35 package enables direct chassis mounting for thermal conduction - a critical feature for JAN1N4130D-1 in high-reliability thermal designs.