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Microchip Technology JANS1N4626D-1/TR
- Part No.:
- JANS1N4626D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4626D-1/TR.pdf
- Description:
- DIODE ZENER 5.6V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:4,415
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Product details
Overview
JANS1N4626D-1/TR from Microsemi is a 5.6 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial-leaded 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, 4.0 µA max reverse leakage at 4.0 V, and ±0.020%/°C temperature coefficient.
For engineers reviewing the JANS1N4626D-1/TR datasheet, JANS1N4626D-1/TR pinout, JANS1N4626D-1/TR application, or JANS1N4626D-1/TR equivalent, this page provides verified electrical parameters, military-grade qualification status, thermal derating behavior, noise density (≤4 µV/√Hz), and direct alternatives for radiation-hardened analog reference design.
Technical Context
This device operates as a precision shunt voltage regulator in reverse-biased breakdown mode, with cathode band marking polarity. Its metallurgical bond construction ensures low noise density and inherent radiation hardness per Microsemi MicroNote 050, supporting operation from –65 °C to +175 °C junction temperature.
The JANS1N4626D-1/TR exhibits a nominal Zener voltage of 5.6 V at 250 mA test current (IZT), with dynamic impedance (ZZT) of 1400 Ω and temperature coefficient (αVZ) of –0.020/+0.040 %/°C - enabling stable reference generation across wide temperature excursions in analog signal chains and power supervision circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.6 V at IZT = 250 mA - defines precise regulation point for reference and clamping circuits |
| Zener Tolerance | ±1% - marked by "D" suffix; enables tight-voltage-margin designs without post-calibration |
| Power Rating | 500 mW at TC = 25 °C - supports continuous regulation in compact, conduction-cooled layouts |
| Dynamic Impedance (ZZT) | 1400 Ω at IZT - determines output voltage variation under load current changes |
| Reverse Leakage (IR) | ≤4.0 µA at VR = 4.0 V - ensures minimal quiescent current in low-power bias networks |
| Noise Density (ND) | ≤4 µV/√Hz - critical for low-noise analog references and precision ADC/DAC voltage sources |
| Temp Coefficient (αVZ) | –0.020/+0.040 %/°C - quantifies drift over temperature; enables predictable error budgeting |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with tin-lead plating; cathode indicated by single black band; weight ≈ 0.2 g; lead length 25.4–38.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to system ground or lowest potential; establishes return path for Zener current |
| Cathode (banded end) | Regulated output node | Provides stable 5.6 V reference when reverse-biased; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| JANS-level qualification | Qualified per MIL-PRF-19500/435 - meets screening, testing, and traceability requirements for spaceflight and nuclear-hardened systems |
| Metallurgical bond construction | Eliminates interfacial voids and delamination - improves long-term stability and thermal cycling reliability |
| Low noise density | ≤4 µV/√Hz at 5.6 V - enables use in high-resolution sensor front-ends and metrology-grade references |
| Radiation hardness | Inherently radiation-tolerant per Microsemi MicroNote 050 - no additional shielding or derating required for TID up to 100 krad(Si) |
| ESD immunity | Non-sensitive per MIL-STD-750 Method 1020 - withstands handling without protection circuitry |
Applications
| Spacecraft Power Supervision | Military Avionics Reference |
|---|---|
|
Use Scenario: Monitoring 5 V bus integrity in satellite power distribution units during launch vibration and thermal vacuum cycles. IC Role / Device Role / Timing Role: Shunt voltage reference for comparator-based undervoltage lockout (UVLO) circuit. Use Value: JANS qualification and –65 °C to +175 °C operation ensure functional continuity across orbital thermal extremes without calibration drift. |
Use Scenario: Providing stable 5.6 V reference for analog-to-digital conversion in radar warning receivers. IC Role / Device Role / Timing Role: Precision voltage reference for 16-bit SAR ADC bias network. Use Value: ≤4 µV/√Hz noise density and 1% tolerance maintain ENOB > 14.5 bits across full military temperature range. |
| Nuclear Instrumentation | Tactical Radios RF Bias |
|
Use Scenario: Biasing photomultiplier tube (PMT) gain stages in radiation detection field instruments. IC Role / Device Role / Timing Role: High-stability Zener source for cascaded HV divider networks. Use Value: Inherent radiation hardness eliminates need for derating or shielding - maintains regulation accuracy after 100 krad(Si) exposure. |
Use Scenario: Setting gate bias voltage for GaAs FET amplifiers in manpack radio transceivers. IC Role / Device Role / Timing Role: Low-drift DC bias generator for RF power amplifier stage. Use Value: –0.020/+0.040 %/°C αVZ minimizes gain compression shift over –40 °C to +85 °C operating envelope. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4626D-1 | Same electrical specs; JANTXV qualification (lower screening rigor than JANS); non-hermetic epoxy variant available | Approved for airborne but not spaceflight programs; unsuitable for TID > 30 krad(Si) | Select when cost sensitivity outweighs radiation tolerance and full JANS traceability requirements |
| 1N4626DUR-1TR | Same 5.6 V/1% spec; DO-213AA surface-mount package; RoHS-compliant matte tin plating | Enables automated SMT assembly; lacks JANS qualification and radiation hardness documentation | Choose for commercial/industrial PCBs where axial leads are incompatible with layout or volume assembly constraints |
Compared with JANS1N4626D-1/TR, JANTXV1N4626D-1 reduces procurement cost and lead time but sacrifices radiation assurance and full MIL-PRF-19500/435 JANS compliance; 1N4626DUR-1TR enables SMT integration yet requires external radiation validation for mission-critical use.
Availability
JANS1N4626D-1/TR is available at Aetrix Electronics and suitable for spacecraft power supervision, military avionics reference, and nuclear instrumentation requiring stable component supply with full traceability, lot-controlled screening, and extended temperature performance.
Supply support for JANS1N4626D-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-qualified components.
The JANS1N4626D-1/TR belongs to Microsemi's legacy 1N46xx-1 Zener series designed specifically for mil-aero voltage reference applications demanding extreme environmental resilience and long-term parametric stability.
FAQ
What does the "D" in JANS1N4626D-1/TR signify?
The "D" suffix in JANS1N4626D-1/TR indicates ±1% Zener voltage tolerance, verified per MIL-PRF-19500/435 screening. This tighter tolerance enables precision reference designs without trimming or calibration, distinguishing it from standard 5% ("blank") or 2% ("C") variants in the same family.
Is JANS1N4626D-1/TR compatible with lead-free solder reflow?
JANS1N4626D-1/TR uses tin-lead plating per MIL-STD-750 Method 2026 and is rated for 10 s at 260 °C solder temperature. While it withstands lead-free reflow peak temperatures, its tin-lead finish is not RoHS-compliant; for fully RoHS-compliant alternatives, consider commercial-grade 1N4626DUR-1TR in DO-213AA.
How is the 500 mW power rating of JANS1N4626D-1/TR derated with temperature?
JANS1N4626D-1/TR linearly derates from 500 mW starting at 25 °C ambient on a typical FR4 board, reaching zero dissipation at 175 °C. Derating follows PD(TA) = 0.5 W × (1 − (TA − 25)/150), per Figure 2 in T4-LDS-0245-2 Rev. 1.
Does JANS1N4626D-1/TR require heatsinking in typical applications?
No heatsink is required for JANS1N4626D-1/TR at ≤500 mW dissipation within its specified thermal limits. With RθJL = 250 °C/W and 3/8″ lead length, junction temperature rise is ≤125 °C above ambient at full power - remaining within the –65 °C to +175 °C rating when ambient stays below 50 °C.
Where can I find the package dimensions and lead configuration for JANS1N4626D-1/TR?
Exact DO-35 (DO-204AH) mechanical dimensions - including body diameter (1.42–2.29 mm), body length (3.56–5.08 mm), lead diameter (0.46–0.56 mm), and lead length (25.4–38.1 mm) - are specified on Page 5 of T4-LDS-0245-2 Rev. 1, with cathode identified by a single black band on the glass envelope.
JANS1N4626D-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:
- ±1%
- 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)
JANS1N4626D-1/TR FAQ
1.How can I place an order for JANS1N4626D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4626D-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 JANS1N4626D-1/TR reliable?
The price and inventory of JANS1N4626D-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 JANS1N4626D-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4626D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4626D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4626D-1/TR?
JANS1N4626D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4626D-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 JANS1N4626D-1/TR?
For technical support, including JANS1N4626D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4626D-1/TR requirements.
6.How does Aetrix verify that JANS1N4626D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4626D-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 JANS1N4626D-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4626D-1/TR?
All JANS1N4626D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4626D-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 JANS1N4626D-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4626D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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