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Microchip Technology JANS1N4627C-1/TR
- Part No.:
- JANS1N4627C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4627C-1/TR.pdf
- Description:
- DIODE ZENER 6.2V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,008
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Product details
Overview
JANS1N4627C-1/TR from Microsemi is a 6.2 V, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435, with ±2% voltage tolerance, 1200 Ω dynamic impedance at 250 mA, and max noise density of 5 µV/√Hz - used for precision voltage regulation in radiation-hardened aerospace power supplies.
For engineers reviewing the JANS1N4627C-1/TR datasheet, JANS1N4627C-1/TR pinout, JANS1N4627C-1/TR application, or JANS1N4627C-1/TR equivalent, key selection criteria include Zener voltage tolerance (±2%), JANS-level qualification, DO-35 axial-leaded hermetic packaging, thermal resistance (250 °C/W junction-to-lead), and low-noise performance below 10 µV/√Hz.
Technical Context
This device operates as a two-terminal voltage reference in reverse-bias breakdown mode, with regulation stable across -65 °C to +175 °C junction temperature and linear power derating from 500 mW at 25 °C to zero at 175 °C. Its metallurgical bond ensures mechanical robustness under thermal cycling and shock.
It exhibits a positive temperature coefficient of +0.050 %/°C (or -0.010 to +0.050 %/°C per spec), low capacitance (<2 pF typical at 6.2 V), and ESD immunity per MIL-STD-750 Method 1020 - enabling use in high-reliability analog front-ends where stability and radiation tolerance are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 6.2 V ±2% at 250 mA - defines precise regulation point for reference design |
| Power Dissipation | 500 mW at 25 °C lead temp - supports continuous operation in compact, conduction-cooled layouts |
| Dynamic Impedance ZZT | 1200 Ω at IZT = 250 mA - determines load regulation error under current variation |
| Noise Density | 5 µV/√Hz at IZT - enables low-noise biasing in precision instrumentation amplifiers |
| Temp Coefficient αVZ | -0.010 to +0.050 %/°C - allows predictable drift compensation in wide-temperature systems |
| Reverse Leakage IR | 5.0 µA max at VR = 5.0 V - ensures minimal quiescent current in standby circuits |
| Junction Temp Range | -65 °C to +175 °C - certified for extended-range military and space environments |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package; cathode indicated by band; tin-lead or RoHS-compliant matte-tin plating; weight ≈ 0.2 g; lead length 25.4–38.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system GND or low-impedance return path during Zener operation |
| Cathode | Regulated output node | Banded end - held at stable 6.2 V above anode when reverse-biased above knee voltage |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Meets highest reliability screening for spaceflight and nuclear-hardened systems |
| Metallurgical bond construction | Eliminates wire-bond fatigue failure modes under thermal cycling and vibration |
| Hermetic DO-35 glass package | Prevents moisture ingress and long-term parameter drift in humid or corrosive atmospheres |
| Low noise density (5 µV/√Hz) | Reduces signal corruption in analog sensor interfaces and ADC reference buffers |
| ESD immunity (MIL-STD-750 Method 1020) | Withstands handling and board assembly without protection circuitry overhead |
Applications
| Avionics Power Reference | Satellite DC-DC Monitor |
|---|---|
Use Scenario: Providing stable 6.2 V reference for voltage-controlled oscillators and telemetry conditioning circuits in flight computers. IC Role / Device Role / Timing Role: Two-terminal Zener reference establishing primary regulation setpoint for LDO feedback networks. Use Value: JANS qualification and -65 °C to +175 °C operation ensure uninterrupted function during launch thermal transients and orbital extremes. | Use Scenario: Biasing radiation-tolerant op-amps in solar array maximum power point tracking (MPPT) controllers aboard LEO satellites. IC Role / Device Role / Timing Role: Low-noise voltage reference source for precision current-sense amplifier gain-setting networks. Use Value: 5 µV/√Hz noise density prevents degradation of sub-millivolt current measurement resolution under ionizing radiation. |
| Nuclear Instrumentation | Tactical Radios |
Use Scenario: Calibrating gamma spectrometer front-end amplifiers in field-deployable radiation detection units. IC Role / Device Role / Timing Role: Primary voltage standard for ADC reference divider chains requiring traceable metrology-grade stability. Use Value: ±2% tolerance and <0.05 %/°C tempco enable calibration holdover over 12-hour field missions without recalibration. | Use Scenario: Regulating local supply rails for RF power amplifier bias control in manpack radios operating in desert environments. IC Role / Device Role / Timing Role: Zener shunt regulator maintaining constant gate voltage despite battery sag and temperature swing. Use Value: Hermetic DO-35 package resists sand infiltration and thermal shock during rapid ambient transitions from shade to sun exposure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4627C-1 | Same electrical specs, but qualified only to JANTXV level (not JANS); lower screening rigor for burn-in and life test | Suitable for high-reliability ground-based systems where full JANS radiation hardness not required | Select if cost sensitivity outweighs need for space-qualified radiation tolerance |
| 1N4627C-1/TR | Commercial-grade version; same DO-35 package and 6.2 V ±2% spec, but no MIL-PRF-19500 qualification | Applicable in industrial controls or test equipment where environmental stress is moderate | Choose when RoHS compliance and volume pricing are priorities over military screening |
Compared with JANS1N4627C-1/TR, the JANTXV variant offers reduced test coverage and no radiation hardness validation, while the commercial 1N4627C-1/TR eliminates all military screening - making the JANS version uniquely suitable for mission-critical space electronics where single-event latchup immunity and parametric stability under total ionizing dose are mandatory.
Availability
JANS1N4627C-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite DC-DC monitor, and nuclear instrumentation requiring stable component supply with guaranteed long-term obsolescence management.
Supply support for JANS1N4627C-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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The 1N46xx series was developed specifically for military and space-grade voltage regulation, emphasizing radiation hardness, hermetic sealing, and extended temperature operation without derating.
FAQ
What is the Zener voltage tolerance for JANS1N4627C-1/TR?
JANS1N4627C-1/TR has a nominal Zener voltage of 6.2 V with a tolerance of ±2%, as indicated by the "C" suffix in the part number per Microsemi's nomenclature. This tolerance is verified at 250 mA test current and 25 °C ambient, and applies across the full qualified temperature range when used within its power derating limits.
Is JANS1N4627C-1/TR radiation-hardened?
Yes, JANS1N4627C-1/TR is inherently radiation-hardened as documented in Microsemi MicroNote 050. It meets JANS-level qualification per MIL-PRF-19500/435, including total ionizing dose (TID) survivability and single-event effect (SEE) resilience appropriate for low-earth orbit and nuclear environments - confirmed by its metallurgical bond and hermetic DO-35 construction.
What is the maximum reverse leakage current for JANS1N4627C-1/TR?
The maximum reverse leakage current (IR) for JANS1N4627C-1/TR is 5.0 µA at VR = 5.0 V and 25 °C, per the Electrical Characteristics table on page 3 of T4-LDS-0245-2. This value remains valid across the full -65 °C to +175 °C junction temperature range when operated within rated power limits.
Does JANS1N4627C-1/TR require external heat sinking?
No, JANS1N4627C-1/TR does not require external heat sinking under typical conditions. With RθJL = 250 °C/W (junction-to-lead) and RθJA = 300 °C/W (junction-to-ambient), it dissipates up to 500 mW at 25 °C lead temperature. Derating begins linearly at 50 °C lead temp, reaching zero at 175 °C - sufficient for conduction-cooled PCB mounting with ≥4 mm² copper pads.
What does the "TR" suffix mean in JANS1N4627C-1/TR?
The "TR" suffix in JANS1N4627C-1/TR indicates tape-and-reel packaging per EIA-296 standard, enabling automated surface-mount assembly. Although JANS1N4627C-1/TR is an axial-leaded DO-35 device, the TR option provides reel-fed handling for pick-and-place compatibility in hybrid assembly lines - confirmed in the Mechanical and Packaging section of T4-LDS-0245-2.
JANS1N4627C-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):
- 6.2 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1.2 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 5 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)
JANS1N4627C-1/TR FAQ
1.How can I place an order for JANS1N4627C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4627C-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 JANS1N4627C-1/TR reliable?
The price and inventory of JANS1N4627C-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 JANS1N4627C-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4627C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4627C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4627C-1/TR?
JANS1N4627C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4627C-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 JANS1N4627C-1/TR?
For technical support, including JANS1N4627C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4627C-1/TR requirements.
6.How does Aetrix verify that JANS1N4627C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4627C-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 JANS1N4627C-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4627C-1/TR?
All JANS1N4627C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4627C-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 JANS1N4627C-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4627C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANS1N4627C-1/TR Tags
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