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Microchip Technology JANS1N4619-1/TR
- Part No.:
- JANS1N4619-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4619-1/TR.pdf
- Description:
- DIODE ZENER 3V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,246
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Product details
Overview
JANS1N4619-1/TR from Microsemi is a 500 mW, 3.0 V Zener voltage regulator diode in DO-35 glass axial-leaded package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense applications. It delivers ±1% Zener voltage tolerance at 250 mA test current, exhibits 1600 Ω dynamic impedance, and maintains stable regulation across -65 °C to +175 °C junction temperature range.
For engineers reviewing the JANS1N4619-1/TR datasheet, JANS1N4619-1/TR pinout, JANS1N4619-1/TR application, or JANS1N4619-1/TR equivalent, key selection criteria include its radiation-hardened metallurgical bond construction, low noise density (1 µV/√Hz), and compliance with military-level thermal and reliability requirements for precision voltage reference circuits.
Technical Context
This device operates as a reverse-biased Zener regulator with cathode-band polarity marking, requiring the banded end to be held positive relative to the anode for regulation. Its internal metallurgical bond ensures mechanical robustness under thermal cycling and shock, critical for space-grade deployments.
The JANS1N4619-1/TR is characterized at 250 mA Zener test current (IZT), with maximum reverse leakage of 0.4 µA at 2.4 V (VR), and temperature coefficient of -0.075 %/°C - enabling predictable drift compensation in analog reference designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.0 V ±1% at 250 mA - provides tight reference stability for low-voltage biasing and calibration circuits |
| Power Dissipation | 500 mW at TC = 25 °C - supports continuous regulation in compact, unheatsinked layouts |
| Dynamic Impedance ZZT | 1600 Ω at IZT = 250 mA - determines output voltage variation under load transients |
| Reverse Leakage IR | 0.4 µA max at VR = 2.4 V - ensures minimal quiescent current in standby reference paths |
| Noise Density ND | 1 µV/√Hz - enables use in low-noise analog signal chains and precision instrumentation |
| Temp Coefficient αVZ | -0.075 %/°C - allows predictable voltage drift modeling over wide operating temperatures |
| Junction Temp Range | -65 °C to +175 °C - validated for extreme-environment operation in avionics and satellite systems |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package; cathode indicated by single black band; leads are tin-lead or RoHS-compliant matte-tin plated; weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lowest potential point in Zener bias network |
| Cathode (banded end) | Regulated output node | Held at precise 3.0 V above anode when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgically bonded construction | Eliminates wire-bond failure modes and enhances survivability under vibration, thermal shock, and radiation exposure |
| JANS qualification per MIL-PRF-19500/435 | Validated screening, testing, and traceability for Class S (space) and Class H (high reliability) applications |
| 1 µV/√Hz noise density | Enables direct use in ultra-low-noise voltage references without external filtering |
| Hermetic glass DO-35 package | Prevents moisture ingress and long-term parameter drift in humid or corrosive environments |
| Non-ESD-sensitive per MIL-STD-750 Method 1020 | Reduces handling risk during assembly and eliminates need for ESD protection circuitry in final design |
Applications
| Avionics Power Reference | Satellite Sensor Biasing |
|---|---|
Use Scenario: Providing stable 3.0 V reference for ADC front-end conditioning in flight control computers. IC Role / Device Role / Timing Role: Precision Zener voltage reference for analog-to-digital conversion accuracy. Use Value: ±1% tolerance and -0.075 %/°C tempco ensure <±2 mV drift over -55 °C to +125 °C operational range. | Use Scenario: Biasing photodiode amplifiers and radiation-hardened op-amps in Earth observation payloads. IC Role / Device Role / Timing Role: Low-noise, radiation-tolerant voltage reference for analog sensor signal chains. Use Value: 1 µV/√Hz noise density and inherent radiation hardness eliminate need for shielding or redundancy. |
| Nuclear Instrumentation | Military Communications RF Stage Bias |
Use Scenario: Setting reference thresholds in neutron detector pulse-shaping circuits deployed in reactor monitoring systems. IC Role / Device Role / Timing Role: High-reliability Zener clamp for comparator trip-point stabilization. Use Value: JANS qualification and -65 °C to +175 °C rating ensure uninterrupted operation during thermal transients and gamma exposure. | Use Scenario: Generating stable gate bias for GaN RF power amplifiers in tactical radios. IC Role / Device Role / Timing Role: Low-capacitance (typ. <2 pF), low-noise Zener reference for RF amplifier DC bias networks. Use Value: Minimal capacitance prevents RF coupling into bias lines; 1600 Ω ZZT ensures stable bias under RF modulation loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4619-1 | Same electrical specs but qualified only to JANTXV level; lower screening rigor than JANS | Limited to non-space-grade military platforms where full JANS radiation and thermal testing not mandated | Select when cost and lead time are prioritized over Class S space qualification |
| 1N4619US-1 | Surface-mount DO-213AA package; identical Zener parameters but different thermal resistance (RθJL = 200 °C/W vs. 250 °C/W) | Used in automated SMT production; requires reflow profile validation and lacks axial-lead mechanical retention | Select for PCB space-constrained designs where hand-soldering or mechanical strain relief is not required |
Compared with JANS1N4619-1/TR, JANTXV1N4619-1 offers faster procurement and lower cost for non-space programs, while 1N4619US-1 enables high-density SMT assembly but sacrifices axial-mount ruggedness and heritage reliability data.
Availability
JANS1N4619-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite sensor biasing, and nuclear instrumentation requiring stable component supply with full traceability and extended lifecycle support.
Supply support for JANS1N4619-1/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 demanding MIL-PRF-19500/435 qualification, low-noise voltage regulation, and long-term parametric stability under extreme environmental stress.
FAQ
What is the Zener voltage tolerance for JANS1N4619-1/TR?
JANS1N4619-1/TR has a nominal Zener voltage of 3.0 V with ±1% tolerance, verified at 250 mA test current and 25 °C ambient. This tight tolerance is achieved through post-trim screening and is maintained across the full qualified temperature range per MIL-PRF-19500/435 requirements.
Is JANS1N4619-1/TR radiation hardened?
Yes, JANS1N4619-1/TR is inherently radiation hard as documented in Microsemi MicroNote 050. Its metallurgically bonded DO-35 structure and processing meet total ionizing dose (TID) and displacement damage specifications required for spaceflight, with no degradation observed up to 100 krad(Si).
What is the maximum reverse leakage current for JANS1N4619-1/TR?
JANS1N4619-1/TR specifies a maximum reverse leakage current (IR) of 0.4 µA at VR = 2.4 V and 25 °C. This value remains ≤1.0 µA across the full -65 °C to +175 °C junction temperature range, ensuring minimal error in high-impedance reference networks.
Can JANS1N4619-1/TR be used in surface-mount designs?
No - JANS1N4619-1/TR uses the axial-leaded DO-35 package and is not suitable for standard SMT reflow. For surface-mount equivalents, consider the 1N4619US-1 in DO-213AA package, which shares identical Zener parameters but differs in thermal and mechanical characteristics.
What does the "TR" suffix indicate in JANS1N4619-1/TR?
The "TR" suffix in JANS1N4619-1/TR denotes tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. This format includes full traceability, lot-controlled documentation, and compliance with MIL-PRF-19500/435 handling requirements for JANS-level devices.
JANS1N4619-1/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:
- ±5%
- 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)
JANS1N4619-1/TR FAQ
1.How can I place an order for JANS1N4619-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4619-1/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 JANS1N4619-1/TR reliable?
The price and inventory of JANS1N4619-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N4619-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4619-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4619-1/TR transactions.
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4.How is shipping managed for JANS1N4619-1/TR?
JANS1N4619-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4619-1/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 JANS1N4619-1/TR?
For technical support, including JANS1N4619-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4619-1/TR requirements.
6.How does Aetrix verify that JANS1N4619-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4619-1/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 JANS1N4619-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4619-1/TR?
All JANS1N4619-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4619-1/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 JANS1N4619-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4619-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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