My Inquiry
My Account
Microchip Technology JANTX1N4621D-1/TR
- Part No.:
- JANTX1N4621D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4621D-1/TR.pdf
- Description:
- DIODE ZENER 3.6V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:4,448
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
JANTX1N4621D-1/TR from Microsemi is a 1% tolerance, 3.6 V, 500 mW axial-leaded Zener diode in DO-35 (DO-204AH) glass package, metallurgically bonded for high-reliability voltage regulation in military and aerospace power conditioning circuits.
For engineers reviewing the JANTX1N4621D-1/TR datasheet, JANTX1N4621D-1/TR pinout, JANTX1N4621D-1/TR application, or JANTX1N4621D-1/TR equivalent, this part supports precision low-voltage reference design, temperature-stable biasing, and MIL-PRF-19500/435-compliant overvoltage protection where 1% Zener tolerance and −0.065 %/°C tempco are critical.
Technical Context
This device operates as a reverse-biased voltage regulator with a nominal Zener voltage of 3.6 V at 250 mA test current, dynamic impedance of 1700 Ω at IZT, and maximum noise density of 1 µV/√Hz - optimized for low-noise analog references below 4 V.
It features a metallurgical bond construction, hermetically sealed glass DO-35 package, and is qualified to JANTX reliability level per MIL-PRF-19500/435, supporting operation from −65 °C to +175 °C with thermal resistance junction-to-lead of 250 °C/W at 10 mm lead length.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.6 V ±1% at 250 mA - enables tight-set reference points in regulated power supplies and sensor bias networks. |
| Power Dissipation | 500 mW at 25 °C, linearly derated to zero at 175 °C - defines usable thermal headroom in compact, unheatsinked layouts. |
| Zener Impedance ZZT | 1700 Ω at 250 mA - indicates moderate AC impedance affecting regulation stability under dynamic load transients. |
| Noise Density ND | 1 µV/√Hz - ensures minimal broadband noise injection into precision analog signal chains and reference buffers. |
| Tempco αVZ | −0.065 %/°C - provides predictable, negative drift for compensation in temperature-critical voltage references. |
| Reverse Leakage IR | 2.0 µA at 3.5 V - confirms low standby current in battery-powered or ultra-low-power monitoring circuits. |
| Junction Temp Range | −65 °C to +175 °C - supports deployment in extended-temperature avionics, downhole, and space-grade systems. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; operated with banded end positive for Zener regulation. Leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to system ground or lower-potential rail; forms reference return path during regulation. |
| Cathode | Zener breakdown terminal / regulated output node | Banded end; connected to input supply or bias source; delivers stable 3.6 V to load when reverse biased. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for defense and space programs requiring traceable lot control and screening per military specification. |
| 1% Zener voltage tolerance (D suffix) | Reduces calibration overhead and eliminates post-production trimming in precision reference designs. |
| Metallurgical bond construction | Enhances long-term parameter stability and resistance to thermal cycling-induced degradation in harsh environments. |
| Low 1 µV/√Hz noise density | Minimizes RMS noise contribution in sub-4 V analog references used in instrumentation amplifiers and ADC front-ends. |
| Hermetic glass DO-35 package | Provides moisture and contaminant immunity essential for mission-critical systems operating beyond 10-year lifetimes. |
Applications
| Avionics Power Conditioning | Satellite Sensor Biasing |
|---|---|
Use Scenario: Regulating auxiliary 3.6 V rails for flight control interface ICs in unmanned aerial vehicles. IC Role / Device Role / Timing Role: Zener voltage reference providing stable bias for analog multiplexers and op-amp comparators. Use Value: −0.065 %/°C tempco and 1% tolerance ensure <±20 mV drift across −40 °C to +85 °C operational range. | Use Scenario: Establishing precision bias voltage for radiation-hardened CMOS image sensor pixel arrays. IC Role / Device Role / Timing Role: Low-noise Zener reference supplying clean 3.6 V to analog front-end amplifiers. Use Value: 1 µV/√Hz noise density prevents SNR degradation in low-light imaging applications. |
| Downhole Telemetry Modules | Tactical Radio RF Front-Ends |
Use Scenario: Stabilizing local oscillator tuning voltages in high-temperature oilfield logging tools. IC Role / Device Role / Timing Role: Temperature-compensated voltage reference for VCO control loops. Use Value: Operation up to +175 °C and MIL-qualified JANTX screening enable uninterrupted function at 150+ °C ambient. | Use Scenario: Providing regulated bias to GaAs FET driver stages in portable HF transceivers. IC Role / Device Role / Timing Role: Low-capacitance Zener clamp protecting sensitive RF amplifier inputs. Use Value: Minimal junction capacitance (<2 pF typical) avoids detuning of 3–30 MHz matching networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTX1N4621C-1/TR | 2% Zener tolerance (C suffix), same VZ, IZT, and package | Acceptable where tighter than 5% but looser than 1% tolerance suffices | Select for cost-sensitive programs where 1% tolerance is not required for system-level accuracy. |
| JANTXV1N4621D-1/TR | JANTXV qualification level (enhanced screening), identical electrical specs | Required for programs specifying JANTXV-level reliability or extended burn-in | Choose when full JANTXV screening per MIL-PRF-19500/435 is mandated for mission-critical subsystems. |
Compared with JANTX1N4621C-1/TR and JANTXV1N4621D-1/TR, the JANTX1N4621D-1/TR offers the optimal balance of 1% tolerance and JANTX-level reliability without the cost premium of JANTXV screening - ideal for high-integrity commercial-space and defense electronics where precision and qualification are both required.
Availability
JANTX1N4621D-1/TR is available at Aetrix Electronics and suitable for avionics power conditioning, satellite sensor biasing, and downhole telemetry modules requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for JANTX1N4621D-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 analog and mixed-signal components for aerospace, defense, and industrial markets.
The 1N46xx-1 series was designed specifically for MIL-PRF-19500/435-compliant Zener regulation in mission-critical systems demanding hermetic packaging, metallurgical bonding, and extended temperature performance.
FAQ
What is the Zener voltage tolerance of JANTX1N4621D-1/TR?
JANTX1N4621D-1/TR has a Zener voltage tolerance of ±1%, indicated by the "D" suffix in its part number. This tolerance applies to its nominal 3.6 V Zener voltage at 250 mA test current and is verified per MIL-PRF-19500/435 screening requirements for JANTX-level devices.
Is JANTX1N4621D-1/TR RoHS compliant?
No, JANTX1N4621D-1/TR is not RoHS compliant. The "e3" RoHS designation is only available on commercial-grade versions of this family; JANTX-level parts retain tin-lead plating per MIL-STD-750 for proven solderability and reliability in high-reliability applications.
What is the maximum Zener current IZM for JANTX1N4621D-1/TR?
The maximum Zener current IZM for JANTX1N4621D-1/TR is 83.0 mA, calculated from its 500 mW power rating and 3.6 V Zener voltage (IZM = PM(AV)/VZ). This value assumes operation at 25 °C with proper thermal management per the derating curve in the datasheet.
How does the temperature coefficient of JANTX1N4621D-1/TR affect its regulation stability?
JANTX1N4621D-1/TR has a temperature coefficient αVZ of −0.065 %/°C, meaning its Zener voltage decreases by approximately 2.34 mV per °C rise. This predictable negative drift allows designers to compensate adjacent circuitry or select complementary components for improved overall thermal stability.
What package type is used for JANTX1N4621D-1/TR?
JANTX1N4621D-1/TR uses the DO-35 (also designated DO-204AH) axial-leaded, hermetically sealed glass package. Its dimensions conform to JEDEC standards, with a body diameter of 1.42–2.29 mm and overall length of 3.56–5.08 mm, and features a cathode band for polarity identification.
JANTX1N4621D-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):
- 3.6 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1700 Ohms
- Current - Reverse Leakage @ Vr:
- 3.5 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANTX1N4621D-1/TR FAQ
1.How can I place an order for JANTX1N4621D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4621D-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 JANTX1N4621D-1/TR reliable?
The price and inventory of JANTX1N4621D-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 JANTX1N4621D-1/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4621D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4621D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4621D-1/TR?
JANTX1N4621D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4621D-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 JANTX1N4621D-1/TR?
For technical support, including JANTX1N4621D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4621D-1/TR requirements.
6.How does Aetrix verify that JANTX1N4621D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4621D-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 JANTX1N4621D-1/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4621D-1/TR?
All JANTX1N4621D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4621D-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 JANTX1N4621D-1/TR part is unused and in its original packaging.
Return procedure for JANTX1N4621D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4621D-1/TR Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
