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Microchip Technology JANS1N4619C-1/TR
- Part No.:
- JANS1N4619C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4619C-1/TR.pdf
- Description:
- DIODE ZENER 3V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:9,309
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Product details
Overview
JANS1N4619C-1/TR from Microsemi is a 3.0 V, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435, with ±2% Zener voltage tolerance, 1600 Ω dynamic impedance at 250 mA test current, and 0.4 µA maximum reverse leakage at 2.4 V. It serves as a precision voltage reference in radiation-hardened military power regulation circuits.
For engineers reviewing the JANS1N4619C-1/TR datasheet, JANS1N4619C-1/TR pinout, JANS1N4619C-1/TR application, or JANS1N4619C-1/TR equivalent, key selection criteria include its JANS-level qualification, 3.0 V nominal Zener voltage with 2% tolerance, DO-35 axial-leaded hermetic package, low noise density (1 µV/√Hz), and radiation-hardened performance per MicroNote 050.
Technical Context
This device operates in reverse breakdown mode with cathode-banded polarity, requiring the banded end to be held positive relative to the anode for regulation. Its metallurgical bond construction ensures stable Zener voltage under thermal cycling and mechanical stress.
It exhibits a temperature coefficient of –0.075 %/°C and supports operation from –65 °C to +175 °C junction temperature, with thermal resistance junction-to-lead of 250 °C/W at 10 mm lead length - critical for high-reliability board-level thermal design in aerospace avionics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 3.0 V at 250 mA test current - defines precise regulation point for low-voltage reference rails |
| Zener Voltage Tolerance | ±2% (C-grade) - enables tighter closed-loop feedback accuracy than standard 5% variants |
| Power Dissipation | 500 mW at 25 °C, linearly derated to zero at 175 °C - sets maximum continuous bias current in regulated supply designs |
| Dynamic Impedance | 1600 Ω at IZT = 250 mA - determines output voltage stability under load transients |
| Noise Density | 1 µV/√Hz - supports low-noise analog references in precision instrumentation front-ends |
| Reverse Leakage | 0.4 µA max at VR = 2.4 V - ensures minimal quiescent current in battery-backed standby circuits |
| Temp Coefficient | –0.075 %/°C - allows predictable drift compensation in wide-temperature-range systems |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with tin-lead or RoHS-compliant matte-tin plating; cathode indicated by band; weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to system ground or common return; must remain negative relative to cathode during regulation |
| Cathode (banded end) | Zener regulation output | Provides stabilized 3.0 V output when reverse-biased; polarity marking is mandatory for correct orientation |
Key Features
| Feature | Design Value |
|---|---|
| JANS-level qualification | Meets MIL-PRF-19500/435 for space-qualified and nuclear-hardened applications |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and vibration stress |
| Radiation hardness | Inherently radiation-tolerant per Microsemi MicroNote 050 - no additional shielding required |
| Low noise density | 1 µV/√Hz at 3.0 V enables use in precision ADC reference buffers and sensor signal chains |
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter drift in humid or corrosive environments |
Applications
| Avionics Power Monitoring | Military Radio Bias Reference |
|---|---|
Use Scenario: Voltage monitoring circuit in flight control computer power distribution unit. IC Role / Device Role / Timing Role: Zener reference for comparator-based overvoltage/undervoltage detection. Use Value: Stable 3.0 V reference ensures accurate trip thresholds across –55 °C to +125 °C operating range without calibration drift. | Use Scenario: Bias voltage source for RF amplifier stages in tactical HF/VHF transceivers. IC Role / Device Role / Timing Role: Low-noise DC reference for active bias networks in GaAs FET driver stages. Use Value: 1 µV/√Hz noise density prevents AM sideband degradation in sensitive receive paths. |
| Satellite Onboard Computer | Nuclear Instrumentation |
Use Scenario: Reset supervisor reference in radiation-tolerant FPGA configuration circuitry. IC Role / Device Role / Timing Role: Regulation element in watchdog timer voltage monitor with latch-up immunity. Use Value: JANS qualification and inherent radiation hardness eliminate need for external TID hardening measures. | Use Scenario: Calibration reference in gamma-ray spectrometer front-end charge amplifiers. IC Role / Device Role / Timing Role: Precision voltage clamp for baseline stabilization in pulse-height analysis circuits. Use Value: ±2% tolerance and –0.075 %/°C tempco enable sub-0.5% full-scale error over instrument lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4619C-1 | Same electrical specs but qualified only to JANTXV level; lower screening rigor than JANS | Limited to non-spaceflight military platforms where total ionizing dose >100 krad(Si) not required | Select when full JANS radiation assurance is unnecessary and cost sensitivity is higher |
| 1N4619C-1/TR | Commercial-grade version; same DO-35 package and 3.0 V/2% specs but no MIL-PRF-19500 qualification | Suitable only for industrial or test equipment where environmental reliability is less stringent | Choose for prototyping or non-mission-critical systems to reduce procurement lead time and cost |
Compared with JANS1N4619C-1/TR, the JANTXV variant offers reduced radiation assurance at lower cost, while the commercial 1N4619C-1/TR eliminates MIL-spec screening entirely - enabling trade-offs between qualification depth, supply chain agility, and system-level reliability requirements.
Availability
JANS1N4619C-1/TR is available at Aetrix Electronics and suitable for avionics power monitoring, military radio bias reference, and satellite onboard computer applications requiring stable component supply under extended temperature and radiation exposure conditions.
Supply support for JANS1N4619C-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, radiation-hardened, and aerospace-grade components.
The 1N4614–1N4627 series was designed specifically for military and space applications requiring hermetic sealing, extreme temperature operation, and proven radiation tolerance - with JANS1N4619C-1/TR representing the highest qualification tier in that family.
FAQ
What is the Zener voltage and tolerance of JANS1N4619C-1/TR?
JANS1N4619C-1/TR has a nominal Zener voltage of 3.0 V at 250 mA test current with a ±2% tolerance (denoted by the "C" suffix). This tolerance is verified per MIL-PRF-19500/435 screening and applies across the full operating temperature range of –65 °C to +175 °C junction temperature.
Is JANS1N4619C-1/TR radiation hardened?
Yes, JANS1N4619C-1/TR is inherently radiation hard as documented in Microsemi MicroNote 050. Its metallurgically bonded glass construction and JANS-level qualification per MIL-PRF-19500/435 ensure reliable operation in high-total-ionizing-dose environments typical of low-earth-orbit satellites and nuclear instrumentation.
What package type does JANS1N4619C-1/TR use?
JANS1N4619C-1/TR uses the DO-35 (DO-204AH) axial-leaded hermetically sealed glass package. The cathode is marked by a band on the glass body, and terminals are plated with tin-lead or RoHS-compliant matte tin per MIL-STD-750 method 2026.
What is the maximum power dissipation of JANS1N4619C-1/TR?
JANS1N4619C-1/TR has a rated average power dissipation of 500 mW at 25 °C case temperature. Power must be linearly derated starting at 50 °C lead temperature, reaching zero at 175 °C - consistent with its thermal resistance junction-to-lead of 250 °C/W at 10 mm lead length.
How does the noise performance of JANS1N4619C-1/TR compare to other Zeners in the series?
JANS1N4619C-1/TR delivers 1 µV/√Hz noise density at its 3.0 V Zener voltage - among the lowest in the 1N4614–1N4627 family. This value falls rapidly below 6.8 V, making it especially suitable for low-noise analog references where spectral purity impacts measurement fidelity.
JANS1N4619C-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):
- 3 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1.6 Ohms
- Current - Reverse Leakage @ Vr:
- 400 nA @ 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)
JANS1N4619C-1/TR FAQ
1.How can I place an order for JANS1N4619C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4619C-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 JANS1N4619C-1/TR reliable?
The price and inventory of JANS1N4619C-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 JANS1N4619C-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4619C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4619C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4619C-1/TR?
JANS1N4619C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4619C-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 JANS1N4619C-1/TR?
For technical support, including JANS1N4619C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4619C-1/TR requirements.
6.How does Aetrix verify that JANS1N4619C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4619C-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 JANS1N4619C-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4619C-1/TR?
All JANS1N4619C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4619C-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 JANS1N4619C-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4619C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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