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Microchip Technology JANS1N4617D-1/TR
- Part No.:
- JANS1N4617D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4617D-1/TR.pdf
- Description:
- DIODE ZENER 2.4V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,356
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Product details
Overview
JANS1N4617D-1/TR from Microsemi is a 2.4 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense applications, with 1400 Ω dynamic impedance at 250 mA test current and -0.075 %/°C temperature coefficient.
For engineers reviewing the JANS1N4617D-1/TR datasheet, JANS1N4617D-1/TR pinout, JANS1N4617D-1/TR application, or JANS1N4617D-1/TR equivalent, this page delivers verified Zener voltage, MIL-spec qualification level, thermal resistance, noise density, and radiation-hardened performance data critical for precision voltage reference and regulation in harsh-environment systems.
Technical Context
This device operates as a two-terminal voltage reference in reverse-biased breakdown mode, delivering stable 2.4 V regulation across 250 mA test current and full temperature range (-65 °C to +175 °C). Its metallurgical bond construction ensures low noise (1 µV/√Hz typical), minimal capacitance, and inherent radiation hardness per Microsemi MicroNote 050.
The JANS1N4617D-1/TR is rated for 0.5 W average power dissipation with linear derating from 500 mW at 25 °C to zero at 175 °C, and exhibits 250 °C/W junction-to-lead thermal resistance when mounted with 10 mm lead length - enabling reliable operation in conduction-cooled military chassis designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 2.4 V ±1% at 250 mA - precise reference for analog signal conditioning and power supply feedback loops |
| Power Dissipation | 500 mW @ 25 °C, derated linearly to zero at 175 °C - supports sustained operation in high-temp avionics enclosures |
| Dynamic Impedance ZZT | 1400 Ω @ 250 mA - defines regulation stiffness under load transients in closed-loop regulators |
| Temp Coefficient αVZ | -0.075 %/°C - enables predictable drift compensation in wide-temperature-range instrumentation |
| Noise Density ND | 1 µV/√Hz @ 250 mA - ultra-low broadband noise for precision ADC reference and sensor biasing |
| Junction Temp Range | -65 °C to +175 °C - validated for space-grade thermal cycling and missile guidance electronics |
| Qualification Level | JANS per MIL-PRF-19500/435 - highest reliability tier for mission-critical DoD systems with full lot traceability |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with cathode band marking; terminals are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener reference ground node | Connected to system ground or low-impedance return path; establishes reference potential for regulation |
| Cathode | Reverse-biased Zener regulation terminal | Banded end; connected to regulated output or feedback node; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and vibration - essential for launch vehicle electronics |
| Inherent radiation hardness | Validated per Microsemi MicroNote 050 - no additional shielding required for TID up to 100 krad(Si) |
| Low noise density | 1 µV/√Hz at 2.4 V - enables sub-LSB stability in 16-bit+ data acquisition front-ends |
| ESD immunity | Non-sensitive per MIL-STD-750 method 1020 - survives handling without special precautions in cleanroom assembly |
| Hermetic glass seal | Prevents moisture ingress and parameter drift over 20+ year service life in sealed avionics modules |
Applications
| Avionics Power Reference | Satellite Sensor Biasing |
|---|---|
Use Scenario: Providing stable 2.4 V reference for analog-to-digital converters in flight control computers. IC Role / Device Role / Timing Role: Precision voltage reference source for ADC reference input and op-amp bias networks. Use Value: 1% tolerance and -0.075 %/°C TC ensure <±0.5% total error over -55 °C to +125 °C operating range. | Use Scenario: Biasing photodiode and MEMS accelerometer front-end amplifiers in LEO satellite payloads. IC Role / Device Role / Timing Role: Low-noise, radiation-hardened Zener reference for analog signal chain DC offsets. Use Value: 1 µV/√Hz noise density preserves SNR in low-level sensor signals; JANS qualification guarantees single-event latchup immunity. |
| Military Radio RF Stage Bias | Nuclear Instrumentation Calibration |
Use Scenario: Setting gate bias voltage for GaAs FETs in secure tactical radio transmit stages. IC Role / Device Role / Timing Role: Stable Zener regulator supplying fixed DC bias to RF power amplifier transistor gates. Use Value: 1400 Ω dynamic impedance maintains regulation during RF envelope modulation-induced current ripple. | Use Scenario: Calibrating high-precision gamma spectrometry pulse-height analyzers in nuclear reactor monitoring systems. IC Role / Device Role / Timing Role: Primary voltage standard for DAC calibration and reference divider networks. Use Value: Hermetic DO-35 package prevents long-term parameter drift; JANS traceability satisfies NRC QA requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4617D-1 | Same electrical specs but qualified only to JANTXV level (MIL-PRF-19500/435); lower screening rigor than JANS | Approved for airborne non-safety-critical subsystems; not cleared for manned spacecraft primary systems | Select when full JANS radiation testing and lot traceability are not mandated by program spec |
| 1N4617D-1/TR | Commercial-grade version; RoHS-compliant e3 plating; no MIL qualification | Limited to ground-based industrial test equipment; unsuitable for flight hardware or radiation environments | Choose only for cost-sensitive prototyping where MIL-spec compliance is unnecessary |
Compared with JANTXV1N4617D-1 and 1N4617D-1/TR, the JANS1N4617D-1/TR provides the highest assurance of parametric stability under neutron/gamma irradiation and thermal cycling - making it the sole option for DoD Class S and NASA Class V applications requiring zero-failure probability.
Availability
JANS1N4617D-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite sensor biasing, military radio RF stage bias, and nuclear instrumentation calibration requiring stable component supply across extended product lifecycles.
Supply support for JANS1N4617D-1/TR 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 components for aerospace, defense, and industrial markets.
The 1N4614–1N4627 series was designed specifically to meet MIL-PRF-19500/435 requirements for radiation-hardened, low-noise Zener references in mission-critical electronic systems.
FAQ
What is the Zener voltage tolerance of JANS1N4617D-1/TR?
The JANS1N4617D-1/TR has a nominal Zener voltage of 2.4 V with a tight ±1% tolerance, indicated by the "D" suffix in the part number per Microsemi's nomenclature. This tolerance is guaranteed over the full operating temperature range and qualifies the device for precision reference applications where voltage accuracy is critical, such as in flight control system analog interfaces.
Is JANS1N4617D-1/TR radiation hardened?
Yes, the JANS1N4617D-1/TR is inherently radiation hard as documented in Microsemi MicroNote 050. Its metallurgically bonded structure and hermetic DO-35 packaging provide proven resilience against total ionizing dose (TID) and single-event effects, meeting requirements for use in satellites and nuclear instrumentation where radiation exposure is unavoidable.
What does the "TR" suffix mean in JANS1N4617D-1/TR?
The "TR" suffix in JANS1N4617D-1/TR indicates tape-and-reel packaging per EIA-296 standards, enabling automated placement in high-volume manufacturing. This format is standard for the JANS grade and supports consistent feeding in pick-and-place systems used for assembling ruggedized military PCBs.
What is the maximum Zener test current IZT for JANS1N4617D-1/TR?
The JANS1N4617D-1/TR is specified with a Zener test current IZT of 250 mA, at which its 2.4 V Zener voltage and 1400 Ω dynamic impedance are measured. This current level reflects the device's optimal regulation point and aligns with its 500 mW power rating at 25 °C ambient temperature.
How does the temperature coefficient affect JANS1N4617D-1/TR performance?
The JANS1N4617D-1/TR has a temperature coefficient αVZ of -0.075 %/°C, meaning its Zener voltage decreases by approximately 1.8 mV per °C rise. This predictable negative drift allows system designers to compensate for thermal effects in high-stability reference circuits, especially in environments with wide operational temperature swings.
JANS1N4617D-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 2.4 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1.4 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANS1N4617D-1/TR FAQ
1.How can I place an order for JANS1N4617D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4617D-1/TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for JANS1N4617D-1/TR reliable?
The price and inventory of JANS1N4617D-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N4617D-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4617D-1/TR?
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JANS1N4617D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4617D-1/TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for JANS1N4617D-1/TR?
For technical support, including JANS1N4617D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4617D-1/TR requirements.
6.How does Aetrix verify that JANS1N4617D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4617D-1/TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that JANS1N4617D-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4617D-1/TR?
All JANS1N4617D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4617D-1/TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The JANS1N4617D-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4617D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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