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Microchip Technology JANTXV1N4620D-1
- Part No.:
- JANTXV1N4620D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4620D-1.pdf
- Description:
- DIODE ZENER 3.3V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:8,577
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Product details
Overview
JANTXV1N4620D-1 from Microsemi is a 1% tolerance, 3.3 V, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to MIL-PRF-19500/435 JANTXV level for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JANTXV1N4620D-1 datasheet, JANTXV1N4620D-1 pinout, JANTXV1N4620D-1 application, or JANTXV1N4620D-1 equivalent, key selection factors include its 1% Zener voltage tolerance, 1650 Ω dynamic impedance at 250 mA test current, -0.075 %/°C temperature coefficient, and hermetically sealed DO-35 axial-leaded construction for stable regulation under thermal stress.
Technical Context
This device operates as a precision shunt voltage regulator with cathode-banded polarity, requiring reverse-bias operation where the banded end is positive relative to the anode. Its metallurgical bond ensures low noise density (1 µV/√Hz at 3.3 V) and radiation hardness per MicroNote 050.
It delivers stable regulation across wide current ranges (IZK near knee to IZM = 85 mA), with thermal resistance junction-to-lead of 250 °C/W at 10 mm lead length and linear derating from 500 mW at 25 °C to zero at 175 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.3 V ±1% at 250 mA - enables precise reference generation for 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 | 1650 Ω at 250 mA - indicates moderate AC impedance for ripple suppression in low-noise power rails. |
| Temperature Coefficient αVZ | -0.075 %/°C - provides predictable, negative drift over temperature for compensated reference designs. |
| Noise Density ND | 1 µV/√Hz at 3.3 V - ensures minimal broadband noise injection into sensitive analog signal chains. |
| Max Reverse Current IR | 3.5 µA at 2.5 V - guarantees low leakage in standby or low-power bias networks. |
| Junction Temp Range | -65 to +175 °C - supports operation in extreme environmental conditions typical of military avionics. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed construction; cathode indicated by colored band; terminals are tin-lead plated and solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lowest potential point in shunt regulator configuration. |
| Cathode | Zener regulation output | Banded end; connected to input supply rail to clamp voltage at 3.3 V ±1% under reverse bias. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTXV qualification | Validated reliability for flight-critical systems with full screening including burn-in, temperature cycling, and hermeticity testing. |
| 1% Zener voltage tolerance | Reduces calibration overhead in precision reference circuits versus standard 5% parts, enabling tighter system-level voltage margins. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock, ensuring long-term parameter stability in cyclic environments. |
| Radiation hardness | Inherent TID tolerance per MicroNote 050 supports use in space-qualified power conditioning without additional shielding. |
| Low capacitance | Typical <2 pF (per Figure 3) minimizes high-frequency coupling in RF-adjacent bias networks. |
Applications
| Aerospace Power Reference | Defense System Biasing |
|---|---|
Use Scenario: Providing stable 3.3 V reference for ADCs and DACs in satellite telemetry modules operating across -55 to +125 °C. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing precision analog reference voltage independent of load current variation. Use Value: 1% tolerance and -0.075 %/°C TC ensure reference drift remains within ±2.5 mV over full temperature range, meeting MIL-STD-1540B accuracy requirements. | Use Scenario: Biasing op-amps and comparators in radar receiver front-end signal conditioning boards exposed to ESD per MIL-STD-750 method 1020. IC Role / Device Role / Timing Role: Low-noise Zener source supplying clean DC bias to high-gain analog stages. Use Value: 1 µV/√Hz noise density prevents degradation of SNR in sub-10 µV signal paths, while non-ESD-sensitive construction eliminates need for external protection. |
| Avionics Voltage Clamp | Tactical Radio Regulator |
Use Scenario: Clamping transient overvoltage on 5 V power rails in flight control actuator interface circuits during lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response shunt protector limiting rail excursion to ≤3.63 V (3.3 V +1%) during 100 ns–1 µs transients. Use Value: Hermetic DO-35 package withstands 175 °C junction temperature during surge events, maintaining regulation integrity where plastic-packaged Zeners fail. | Use Scenario: Regulating local 3.3 V supply for FPGA configuration memory and PLL circuits in handheld encrypted radios operating in desert environments. IC Role / Device Role / Timing Role: Primary voltage reference stabilizing clock generation and digital core logic supply. Use Value: JANTXV screening ensures >10,000-hour MTBF at 125 °C case temperature, meeting DoD 5000.02 acquisition reliability thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4620US-1 | Same electrical specs but in DO-213AA surface-mount package; no axial leads. | Required for PCB space-constrained designs where through-hole mounting is prohibited. | Select when board layout mandates SMT assembly and thermal pad access is available for lead soldering. |
| 1N4620UR-1 | Same 3.3 V/1% spec in DO-216 tabbed SMT package; RoHS-compliant commercial grade only. | Suitable for non-military industrial controls where MIL-spec screening is unnecessary. | Choose for cost-sensitive commercial programs needing identical regulation performance without JANTXV screening. |
Compared with JANTXV1N4620D-1, JANTXV1N4620US-1 offers identical regulation but requires rework of PCB land patterns and thermal management for SMT leads, while 1N4620UR-1 sacrifices radiation hardness and extended temperature screening for lower unit cost and RoHS compliance.
Availability
JANTXV1N4620D-1 is available at Aetrix Electronics and suitable for aerospace power references, defense system biasing, and avionics voltage clamping requiring stable component supply with guaranteed MIL-spec traceability and long-term obsolescence management.
Supply support for JANTXV1N4620D-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) is a U.S.-based semiconductor manufacturer specializing in high-reliability analog and mixed-signal components for aerospace, defense, and industrial markets.
The 1N46xx-1 series was designed specifically to meet MIL-PRF-19500/435 requirements for hermetic, low-noise, radiation-tolerant Zener regulation in mission-critical power systems.
FAQ
What is the Zener voltage tolerance of JANTXV1N4620D-1?
JANTXV1N4620D-1 has a nominal Zener voltage of 3.3 V with a ±1% tolerance, as indicated by the "D" suffix in the part number per Microsemi's nomenclature. This tolerance is verified at 250 mA test current and 25 °C ambient, enabling high-accuracy voltage referencing in regulated power supplies and precision analog circuits where tighter regulation than standard 5% Zeners is required.
Is JANTXV1N4620D-1 suitable for high-temperature operation?
Yes, JANTXV1N4620D-1 is rated for junction temperatures from -65 to +175 °C and features linear power derating from 500 mW at 25 °C to zero at 175 °C. Its metallurgically bonded DO-35 glass package maintains parameter stability under thermal cycling, making JANTXV1N4620D-1 appropriate for engine-mounted avionics and downhole drilling electronics where sustained high-temperature operation is mandatory.
Does JANTXV1N4620D-1 require external heat sinking?
No, JANTXV1N4620D-1 does not require external heat sinking under typical operating conditions. With a thermal resistance junction-to-lead of 250 °C/W at 10 mm lead length and 300 °C/W junction-to-ambient on FR4, it dissipates up to 500 mW in still air when leads are properly terminated to copper pours. JANTXV1N4620D-1 relies on lead conduction rather than case radiation, so adequate PCB copper area around leads is sufficient for thermal management.
What is the noise performance of JANTXV1N4620D-1?
JANTXV1N4620D-1 exhibits a noise density of 1 µV/√Hz at 3.3 V and 250 mA, measured in the 1–3 kHz band per Figure 1. This ultra-low noise stems from its metallurgical bond construction and makes JANTXV1N4620D-1 ideal for low-noise analog references in instrumentation amplifiers, sensor signal chains, and precision data converters where Zener noise would otherwise degrade effective resolution.
How is polarity marked on JANTXV1N4620D-1?
JANTXV1N4620D-1 uses a cathode band marking on the glass body to indicate polarity: the banded end is the cathode and must be connected to the higher-potential side of the circuit for proper Zener regulation. The opposite (unbanded) end is the anode and connects to ground or the lower-potential node. This marking complies with JEDEC standards and is visible under standard optical inspection during assembly verification of JANTXV1N4620D-1.
JANTXV1N4620D-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):
- 3.3 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1650 Ohms
- Current - Reverse Leakage @ Vr:
- 3.5 µA @ 1.5 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)
JANTXV1N4620D-1 FAQ
1.How can I place an order for JANTXV1N4620D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4620D-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 JANTXV1N4620D-1 reliable?
The price and inventory of JANTXV1N4620D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4620D-1 is usually 5 days.
3.What payment methods are accepted for JANTXV1N4620D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4620D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4620D-1?
JANTXV1N4620D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4620D-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 JANTXV1N4620D-1?
For technical support, including JANTXV1N4620D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4620D-1 requirements.
6.How does Aetrix verify that JANTXV1N4620D-1 is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4620D-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 JANTXV1N4620D-1 meets industry standards.
7.What is the process for return or replacement of JANTXV1N4620D-1?
All JANTXV1N4620D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4620D-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 JANTXV1N4620D-1 part is unused and in its original packaging.
Return procedure for JANTXV1N4620D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N4620D-1 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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