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Microchip Technology JAN1N4627D-1
- Part No.:
- JAN1N4627D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4627D-1.pdf
- Description:
- DIODE ZENER 6.2V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,986
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Product details
Overview
JAN1N4627D-1 from Microsemi is a 1% tolerance, 6.2 V, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JAN1N4627D-1 datasheet, JAN1N4627D-1 pinout, JAN1N4627D-1 application, or JAN1N4627D-1 equivalent, key selection criteria include Zener voltage tolerance (±1%), dynamic impedance (1200 Ω @ 250 mA), noise density (5 µV/√Hz), temperature coefficient (–0.010 to +0.050 %/°C), and JANS-level radiation hardness.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 6.2 V at 250 mA test current, exhibiting low noise density (5 µV/√Hz) and tight 1% voltage tolerance. Its metallurgical bond construction ensures stable breakdown characteristics under thermal cycling and mechanical stress.
The JAN1N4627D-1 is rated for junction temperatures from –65 °C to +175 °C, with thermal resistance junction-to-lead of 250 °C/W at 10 mm lead length. It delivers regulated output across wide current ranges (IZK to IZM = 5 mA to 61 mA) while maintaining low dynamic impedance and minimal capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 6.2 V ±1% at 250 mA - enables precise reference generation in analog circuits requiring tight voltage stability. |
| Power Dissipation | 500 mW at 25 °C - supports continuous regulation in compact, unheatsinked designs with linear derating above 50 °C. |
| Dynamic Impedance ZZT | 1200 Ω max @ 250 mA - ensures minimal output voltage variation under load transients in feedback loops. |
| Noise Density | 5 µV/√Hz @ 250 mA - critical for low-noise references in precision ADCs, DACs, and instrumentation amplifiers. |
| Temp. Coefficient αVZ | –0.010 to +0.050 %/°C - provides predictable drift behavior over –65 to +175 °C for mission-critical systems. |
| Reverse Leakage IR | 5.0 µA max @ 5.0 V - guarantees low standby current in battery-backed or ultra-low-power monitoring circuits. |
| Max Zener Current IZM | 61 mA - defines safe operating current ceiling before thermal runaway under worst-case ambient conditions. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with cathode indicated by band; operated with banded end positive for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lowest potential point; serves as return path for Zener current. |
| Cathode | Regulated output node | Banded end; supplies stable 6.2 V reference when reverse-biased; must be held at higher potential than anode. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 qualification | JANS-level reliability certified for space-grade applications including radiation hardness per MicroNote 050. |
| Metallurgical bonding | Eliminates interfacial delamination risk under thermal shock, ensuring long-term parameter stability in harsh environments. |
| Low noise density | 5 µV/√Hz enables use in high-resolution data acquisition where reference noise directly limits SNR. |
| Hermetic glass sealing | Prevents moisture ingress and parametric drift over decades-critical for sealed military avionics modules. |
| 1% voltage tolerance | Reduces need for post-calibration trimming in production test, lowering manufacturing cost for precision systems. |
Applications
| Avionics Power Reference | Satellite DC-DC Monitor |
|---|---|
Use Scenario: Providing primary voltage reference for triple-redundant power supply supervisors in flight control computers. IC Role / Device Role / Timing Role: Shunt Zener reference diode establishing 6.2 V threshold for comparator-based undervoltage lockout. Use Value: JANS qualification ensures operation after 100 krad(Si) total ionizing dose; 1% tolerance eliminates calibration steps during board-level test. | Use Scenario: Biasing error amplifier inputs in radiation-hardened isolated DC-DC converters aboard LEO satellites. IC Role / Device Role / Timing Role: Precision shunt reference stabilizing feedback loop gain across –55 to +125 °C temperature range. Use Value: Low 5 µV/√Hz noise preserves regulation accuracy in 16-bit telemetry power monitoring channels. |
| Nuclear Instrumentation | Tactical Radio Bias Supply |
Use Scenario: Generating stable bias for gamma-ray spectrometer preamplifiers deployed in reactor containment zones. IC Role / Device Role / Timing Role: Low-noise Zener reference supplying gate voltage to JFET input stages in charge-sensitive amplifiers. Use Value: Metallurgical bond integrity prevents parameter shift during neutron fluence exposure; DO-35 package withstands steam sterilization cycles. | Use Scenario: Regulating local 6.2 V rail for RF front-end LNAs and mixer bias networks in manpack radios. IC Role / Device Role / Timing Role: Shunt regulator maintaining constant bias point despite battery voltage sag from 6.8 V to 5.5 V. Use Value: 1200 Ω dynamic impedance ensures <10 mV output shift across 1–10 mA load variation-preserving LNA linearity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4627UR-1 | Same electrical specs but in DO-213AA surface-mount package; no axial leads. | Used where PCB real estate is constrained and reflow assembly required; lacks axial mounting flexibility. | Select when automated SMT placement is mandatory and thermal pad access is available for lead heat sinking. |
| JANTXV1N4627D | Identical Zener voltage, tolerance, and noise performance; differs only in qualification level (JANTXV vs JANS). | Approved for high-reliability ground systems but not spaceflight; lower radiation hardness assurance. | Choose for cost-sensitive defense programs where full JANS testing is unnecessary but MIL-spec compliance remains required. |
Compared with JAN1N4627D-1, the 1N4627UR-1 offers identical regulation performance in a surface-mount form factor ideal for dense layouts, while JANTXV1N4627D provides near-equivalent reliability at lower cost for non-space applications-neither is pin-compatible due to differing packages or qualification scope.
Availability
JAN1N4627D-1 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 availability and traceable sourcing.
Supply support for JAN1N4627D-1 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 JAN1N4627D-1 belongs to Microsemi's legacy MIL-qualified Zener diode family engineered specifically for precision voltage regulation in mission-critical systems exposed to extreme temperature, radiation, and vibration.
FAQ
What is the Zener voltage tolerance of JAN1N4627D-1?
JAN1N4627D-1 has a Zener voltage tolerance of ±1%, denoted by the "D" suffix in its nomenclature. This tight tolerance ensures consistent 6.2 V regulation across production lots without post-manufacture calibration, making it suitable for high-accuracy reference applications in aerospace and defense electronics where parameter drift is unacceptable.
Is JAN1N4627D-1 qualified for space applications?
Yes, JAN1N4627D-1 is qualified to JANS level per MIL-PRF-19500/435, which includes radiation hardness assurance per Microsemi MicroNote 050. Its metallurgically bonded construction and hermetic DO-35 package make JAN1N4627D-1 appropriate for low-earth orbit satellite power subsystems and other space-grade deployments requiring TID tolerance and long-term parametric stability.
What is the maximum Zener current rating for JAN1N4627D-1?
The maximum Zener current (IZM) for JAN1N4627D-1 is 61 mA, derived from its 500 mW power rating and 6.2 V nominal Zener voltage. This value assumes operation at 25 °C ambient with proper lead heat sinking; current must be reduced linearly above 50 °C case temperature to prevent thermal runaway, as defined in Figure 2 of the T4-LDS-0245-2 datasheet.
Does JAN1N4627D-1 have low-noise performance suitable for precision analog circuits?
Yes, JAN1N4627D-1 delivers a noise density of 5 µV/√Hz at 250 mA test current, verified per Figure 1 measurement circuit in the datasheet. This low-noise characteristic makes JAN1N4627D-1 well-suited for precision analog functions such as ADC reference buffers, sensor signal conditioning, and low-jitter clock distribution where reference noise directly impacts system resolution.
How does the temperature coefficient of JAN1N4627D-1 affect its regulation accuracy?
JAN1N4627D-1 exhibits a temperature coefficient (αVZ) ranging from –0.010 to +0.050 %/°C, meaning its Zener voltage may drift up to ±0.031 V over a 100 °C span. This predictable, bounded drift allows designers to compensate in system-level calibration routines-especially valuable in avionics and instrumentation where wide-temperature operation is mandatory and absolute accuracy must be maintained.
JAN1N4627D-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1200 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
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JAN1N4627D-1 FAQ
1.How can I place an order for JAN1N4627D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4627D-1 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 JAN1N4627D-1 reliable?
The price and inventory of JAN1N4627D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4627D-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4627D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4627D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4627D-1?
JAN1N4627D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4627D-1 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 JAN1N4627D-1?
For technical support, including JAN1N4627D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4627D-1 requirements.
6.How does Aetrix verify that JAN1N4627D-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4627D-1 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 JAN1N4627D-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4627D-1?
All JAN1N4627D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4627D-1, 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 JAN1N4627D-1 part is unused and in its original packaging.
Return procedure for JAN1N4627D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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