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Microchip Technology JANS1N4626C-1/TR
- Part No.:
- JANS1N4626C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4626C-1/TR.pdf
- Description:
- DIODE ZENER 5.6V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:4,945
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Product details
Overview
JANS1N4626C-1/TR from Microsemi is a 5.6 V, 2% 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. It delivers stable voltage regulation at 250 mA test current with 1400 Ω dynamic impedance and ±0.020%/°C temperature coefficient.
For engineers reviewing the JANS1N4626C-1/TR datasheet, JANS1N4626C-1/TR pinout, JANS1N4626C-1/TR application, or JANS1N4626C-1/TR equivalent, key selection criteria include Zener voltage tolerance (2%), radiation hardness, hermetic DO-35 packaging, noise density (4 μV/√Hz), and MIL-spec qualification level - all critical for precision reference and hardened power supply designs.
Technical Context
This device operates as a two-terminal shunt voltage regulator, biased in reverse breakdown with cathode band indicating polarity. Its metallurgical bond construction ensures low leakage (<4 μA @ 4.5 V) and minimal capacitance (~2.5 pF), enabling stable performance across -65°C to +175°C junction temperature range.
The JANS1N4626C-1/TR exhibits a positive temperature coefficient (+0.020%/°C typical) above 5 V, supporting predictable thermal drift compensation in reference circuits. Its 250 °C/W junction-to-lead thermal resistance supports reliable operation under pulsed or continuous DC loads when mounted with ≥10 mm lead length.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 5.6 V ±2% at 250 mA - enables precise mid-range voltage reference with tight initial accuracy |
| Power Rating | 500 mW at 25°C - supports robust regulation in space-constrained, high-reliability PCB layouts |
| Dynamic Impedance ZZT | 1400 Ω max at 250 mA - ensures low output impedance for stable regulation under varying load currents |
| Noise Density | 4 μV/√Hz - minimizes broadband noise injection into sensitive analog references and PLL loops |
| Temp Coefficient αVZ | ±0.020%/°C - provides predictable, low-drift behavior over wide operating temperature ranges |
| Reverse Leakage IR | 4 μA max @ 4.5 V - guarantees low standby current in battery-backed or low-power systems |
| Junction Temp Range | -65°C to +175°C - validated for extreme-environment deployment in avionics and satellite subsystems |
Pinout & Package
Hermetically sealed axial-leaded DO-35 (DO-204AH) glass package with tin-lead plating; cathode indicated by single black band; weight ≈ 0.2 g; body diameter 1.42–2.29 mm, length 3.56–5.08 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return; must be held at lower potential than cathode during regulation |
| Cathode | Zener regulation output | Banded end; supplies regulated 5.6 V when reverse-biased; requires current-limiting series resistor |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated for Class S (space-level) reliability with full lot traceability and screening per military standards |
| Metallurgical bond construction | Eliminates interfacial voids and delamination risks, ensuring long-term stability under thermal cycling and radiation exposure |
| Hermetic glass DO-35 package | Prevents moisture ingress and contamination, maintaining parameter integrity over 20+ year service life in sealed enclosures |
| Low noise density (4 μV/√Hz) | Enables use in ultra-low-noise voltage references for ADC/DAC biasing and RF synthesizer PLLs |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per Microsemi MicroNote 050 - suitable for LEO/MEO satellite power conditioning |
Applications
| Avionics Power Reference | Satellite Bus Regulation |
|---|---|
Use Scenario: Providing stable 5.6 V reference for analog sensor signal conditioning in flight control computers. IC Role / Device Role / Timing Role: Shunt Zener reference diode establishing precision bias point for op-amps and ADC drivers. Use Value: Tight 2% tolerance and ±0.020%/°C tempco ensure <±10 mV drift over -55°C to +125°C operational range. | Use Scenario: Regulating auxiliary rail in satellite power distribution units exposed to cosmic radiation. IC Role / Device Role / Timing Role: Radiation-hardened voltage clamp protecting downstream DC-DC converter feedback networks. Use Value: JANS qualification and inherent TID hardness eliminate need for shielding or derating in 10 krad(Si) environments. |
| Missile Guidance Biasing | Nuclear Instrumentation Reference |
Use Scenario: Generating calibrated bias voltage for MEMS gyroscope front-end amplifiers in tactical missiles. IC Role / Device Role / Timing Role: Low-noise Zener source feeding instrumentation-grade op-amp gain stages. Use Value: 4 μV/√Hz noise density prevents degradation of sub-milliradian angular resolution in inertial measurement units. | Use Scenario: Serving as primary voltage reference in radiation monitoring dosimeters deployed in reactor containment zones. IC Role / Device Role / Timing Role: High-reliability shunt regulator maintaining calibration integrity despite neutron flux exposure. Use Value: Hermetic DO-35 seal and metallurgical bond prevent parametric shift after 1×1015 n/cm2 fast neutron fluence. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4626C-1 | Same electrical specs but qualified only to JANTXV level (not JANS); lacks full Class S screening | Acceptable for high-reliability ground-based systems where full space qualification is not mandated | Select when cost sensitivity outweighs requirement for full JANS lot acceptance testing and radiation reporting |
| 1N4626C-1/TR | Commercial-grade version; RoHS-compliant plating; no MIL-spec screening or radiation data | Limited to non-safety-critical industrial or test equipment with ambient temperature constraints | Choose only for prototyping or commercial derivatives where traceability and extended temp range are not required |
Compared with JANS1N4626C-1/TR, the JANTXV variant offers identical Zener performance but reduced screening depth and no radiation assurance, while the commercial 1N4626C-1/TR omits hermeticity validation and MIL-qualified process controls - making JANS1N4626C-1/TR the sole choice for mission-critical spaceflight and nuclear environments.
Availability
JANS1N4626C-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite bus regulation, and missile guidance biasing requiring stable component supply across extended temperature and radiation-exposed environments.
Supply support for JANS1N4626C-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 JANS1N4626C-1/TR belongs to Microsemi's legacy MIL-PRF-19500/435 qualified Zener diode family, engineered specifically for precision voltage reference and regulation in defense, space, and nuclear instrumentation systems.
FAQ
What is the Zener voltage tolerance for JANS1N4626C-1/TR?
JANS1N4626C-1/TR has a nominal Zener voltage of 5.6 V with a ±2% tolerance, as indicated by the "C" suffix in its part number per Microsemi's nomenclature. This tolerance is guaranteed across the full operating temperature range (-65°C to +175°C) and validated during JANS-level qualification testing per MIL-PRF-19500/435.
Is JANS1N4626C-1/TR radiation-hardened?
Yes, JANS1N4626C-1/TR is inherently radiation-hardened due to its metallurgically bonded structure and hermetic DO-35 packaging, as documented in Microsemi MicroNote 050. It is qualified to JANS level per MIL-PRF-19500/435, which includes radiation survivability verification for total ionizing dose (TID) in space environments.
What is the maximum reverse leakage current for JANS1N4626C-1/TR?
The maximum reverse leakage current (IR) for JANS1N4626C-1/TR is 4 μA at 4.5 V, as specified in the Electrical Characteristics table on page 3 of the T4-LDS-0245-2 datasheet. This value is measured at 25°C and reflects the device's low-leakage performance critical for precision reference applications.
Does JANS1N4626C-1/TR have a defined noise density specification?
Yes, JANS1N4626C-1/TR has a specified noise density of 4 μV/√Hz at 25°C, measured using a 1 kHz–3 kHz bandpass filter at IZT = 250 mA. This low noise characteristic is confirmed in the Electrical Characteristics table and supports use in high-fidelity analog reference circuits.
What does the "TR" suffix mean in JANS1N4626C-1/TR?
The "TR" suffix in JANS1N4626C-1/TR indicates tape-and-reel packaging per EIA-296 standard, enabling automated surface-mount assembly. While the device itself is axial-leaded DO-35, the TR variant is supplied in reels for pick-and-place compatibility - a configuration explicitly noted in the Mechanical and Packaging section of the datasheet.
JANS1N4626C-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):
- 5.6 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1.4 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 4 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)
JANS1N4626C-1/TR FAQ
1.How can I place an order for JANS1N4626C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4626C-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 JANS1N4626C-1/TR reliable?
The price and inventory of JANS1N4626C-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 JANS1N4626C-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4626C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4626C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4626C-1/TR?
JANS1N4626C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4626C-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 JANS1N4626C-1/TR?
For technical support, including JANS1N4626C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4626C-1/TR requirements.
6.How does Aetrix verify that JANS1N4626C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4626C-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 JANS1N4626C-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4626C-1/TR?
All JANS1N4626C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4626C-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 JANS1N4626C-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4626C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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