My Inquiry
My Account
Microchip Technology 1N4584A/TR
- Part No.:
- 1N4584A/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N4584A/TR.pdf
- Description:
- DIODE ZENER 6.4V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,515
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N4584A/TR from Microsemi is a 6.4 V temperature-compensated Zener reference diode in DO-7 (DO-204AA) glass axial-leaded package, rated for 4.0 mA test current, 0.0005 %/°C temperature coefficient, 25 Ω dynamic impedance, and ±5% nominal voltage tolerance. It delivers ultra-stable voltage reference performance across -55°C to +100°C operating range and is used in precision instrumentation calibration circuits.
For engineers reviewing the 1N4584A/TR datasheet, 1N4584A/TR pinout, 1N4584A/TR application, or 1N4584A/TR equivalent, key selection criteria include its low TC (0.0005 %/°C), tight thermal stability at 4 mA bias, hermetic DO-7 packaging, military-grade qualification path (JANTXV), and TR tape-and-reel availability for automated assembly.
Technical Context
This device belongs to Microsemi's JEDEC-registered 1N4565–1N4584A family of zero-temperature-coefficient Zener references. Its 6.4 V nominal breakdown voltage is achieved via dual-Zener or Zener–forward diode compensation architecture, enabling minimal drift over temperature.
The 1N4584A/TR operates at 4.0 mA Zener test current (IZT), delivering 25 Ω dynamic impedance (ZZT) and <2.0 µA reverse leakage at 3 V. It supports full military qualification (MIL-PRF-19500/452) with JANTXV prefix and -1 suffix, and meets MIL-STD-750 Method 1020 for ESD immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.4 V ±5% at IZT = 4.0 mA - defines primary reference accuracy under standard bias |
| Temperature Coefficient (αVZ) | 0.0005 %/°C - enables <0.03 mV/°C drift, critical for high-stability analog systems |
| Zener Test Current (IZT) | 4.0 mA - optimal bias point for achieving specified TC and impedance performance |
| Dynamic Impedance (ZZT) | 25 Ω @ IZT - ensures low AC error contribution in feedback or regulation loops |
| Reverse Leakage (IR) | ≤2.0 µA @ 3 V - guarantees minimal error current in high-impedance reference nodes |
| Operating Temp Range | -55°C to +100°C - validated stability range for industrial and aerospace environments |
| Package | DO-7 (DO-204AA) - hermetically sealed glass axial package with tin-lead leads |
Pinout & Package
DO-7 (DO-204AA) glass axial-leaded package with cathode band marking; polarity requires banded end to be positive relative to anode during operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connects to circuit common; reverse-biased configuration places cathode at higher potential |
| Cathode (banded end) | Reference output node | Provides stable 6.4 V relative to anode; must be biased at +4.0 mA for spec compliance |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low temperature coefficient | 0.0005 %/°C minimizes voltage drift across wide ambient ranges without external compensation |
| Hermetic glass DO-7 construction | Enables long-term reliability and moisture resistance in harsh environments (-65°C to +175°C storage) |
| MIL-PRF-19500/452 qualification path | Supports JANTXV prefix + "-1" suffix for flight-critical and defense applications |
| Nonsensitive to ESD | Complies with MIL-STD-750 Method 1020 - eliminates need for handling precautions in production |
| Tape-and-reel packaging (TR) | EIA-296 compliant - enables direct use in high-volume SMT placement equipment |
Applications
| High-Precision ADC Reference | Aerospace Power Monitor Calibration |
|---|---|
Use Scenario: Reference input for 16-bit SAR ADC in environmental sensor node requiring <0.01% full-scale error. IC Role / Device Role / Timing Role: Provides stable 6.4 V reference voltage to ADC REF+ pin, replacing less stable bandgap sources. Use Value: 0.0005 %/°C TC ensures <±0.003% reference drift over -40°C to +85°C, meeting system accuracy budget. |
Use Scenario: Calibration reference in satellite power management unit monitoring 28 V bus voltage. IC Role / Device Role / Timing Role: Serves as primary voltage reference for precision resistor-divider feedback in isolated DC-DC monitor IC. Use Value: Hermetic DO-7 package and JANTXV-qualified variants ensure radiation-tolerant, long-life operation in LEO orbit. |
| Industrial PLC Analog Input Module | Military Test Equipment Bias Source |
Use Scenario: Reference for programmable gain instrumentation amplifier in modular I/O rack. IC Role / Device Role / Timing Role: Supplies excitation voltage to ratiometric bridge sensors and sets ADC full-scale range. Use Value: 4.0 mA IZT and 25 Ω ZZT maintain <10 ppm line regulation error across 10–100 kHz noise spectrum. |
Use Scenario: Stable bias source in portable field-deployable multimeter calibrator. IC Role / Device Role / Timing Role: Generates traceable 6.4 V reference for internal DAC-based voltage generation stages. Use Value: -55°C to +100°C operational range and MIL-qualified variants support extended deployment in desert/arctic conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM399H | 6.95 V buried-Zener IC with on-chip heater; 0.3 ppm/°C TC; requires 10 mA supply and thermal stabilization time | Higher accuracy but larger footprint, higher power, and slower warm-up; not drop-in replaceable | Choose LM399H only when sub-ppm stability and long-term drift <2 ppm/year are required |
| BZX85C6V2 | 6.2 V Zener; 5% tolerance; 0.08 %/°C TC; DO-41 package; no military qualification path | Limited to commercial-grade instrumentation; unsuitable for aerospace or calibrated test gear | Select BZX85C6V2 only for cost-sensitive, non-critical biasing where ±100 mV reference error is acceptable |
Compared with LM399H and BZX85C6V2, the 1N4584A/TR uniquely balances ultra-low TC (0.0005 %/°C), DO-7 hermetic reliability, military qualification readiness, and simple 4 mA bias-making it optimal for ruggedized precision analog systems where heater-based solutions are impractical.
Availability
1N4584A/TR is available at Aetrix Electronics and suitable for high-reliability instrumentation, aerospace power monitoring, and industrial PLC analog input modules requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 1N4584A/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 (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, RF, and radiation-hardened components for aerospace, defense, and industrial markets.
The 1N4584A/TR belongs to Microsemi's legacy Scottsdale Division 1N45xx series of temperature-compensated Zener references, engineered specifically for precision voltage referencing in mission-critical analog signal chains where long-term stability and environmental resilience are mandatory.
FAQ
What is the Zener test current for 1N4584A/TR and why is it important?
The 1N4584A/TR has a Zener test current (IZT) of 4.0 mA. This current is the precise bias condition under which all key specifications-including voltage, temperature coefficient, and dynamic impedance-are guaranteed. Operating the 1N4584A/TR at 4.0 mA ensures optimal TC performance (0.0005 %/°C) and low 25 Ω impedance. Deviating significantly from this current degrades stability and increases drift, so bias networks must be designed to deliver stable 4.0 mA across temperature and line variations.
Does 1N4584A/TR support military qualification, and how is it ordered?
Yes, the 1N4584A/TR can be qualified to MIL-PRF-19500/452 as a JANTXV device. To order the qualified version, add the JANTXV prefix and "-1" suffix to form JANTXV1N4584A-1. This variant undergoes additional screening including burn-in, temperature cycling, and lot acceptance testing per MIL standards. The base 1N4584A/TR is commercial-grade but shares identical DO-7 packaging, electrical specs, and thermal performance-making it ideal for prototyping before transitioning to qualified versions.
What does the "TR" suffix mean in 1N4584A/TR?
The "TR" suffix in 1N4584A/TR indicates EIA-296 standard tape-and-reel packaging, optimized for automated pick-and-place assembly. Each reel contains 1,000 units in embossed carrier tape with cover tape, enabling high-throughput SMT line integration. The TR format preserves the DO-7 axial lead geometry while providing consistent orientation and mechanical protection. No rework or repackaging is needed-1N4584A/TR ships ready for direct machine feeding, reducing labor and handling risk in volume production.
How does the 0.0005 %/°C temperature coefficient translate to real-world voltage drift?
A 0.0005 %/°C TC means the 1N4584A/TR drifts just 0.032 mV/°C around its 6.4 V nominal value. Over a -55°C to +100°C operating range (155°C span), total drift is ≤ ±5.0 mV-less than 0.08% of full scale. This level of stability eliminates need for external trimming or software compensation in most precision applications. Measured data confirms <±2.5 mV drift across that range at 4.0 mA bias, validating its use in Class A calibration equipment and metrology-grade instruments.
Can 1N4584A/TR replace older 1N4584 without changes to the PCB layout?
Yes, 1N4584A/TR is a direct replacement for 1N4584 in DO-7 package with identical pinout, dimensions, and electrical characteristics-except for tighter TC (0.0005 %/°C vs. 0.01 %/°C for 1N4584) and lower ZZT (25 Ω vs. 50 Ω). Both share same 6.4 V nominal voltage, 4.0 mA IZT, and hermetic glass construction. No PCB modifications are required; the "A" suffix denotes improved temperature stability, and "TR" only affects packaging-not device function-so existing footprints and schematics remain fully compatible with 1N4584A/TR.
1N4584A/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):
- 6.4 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 25 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 3 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
1N4584A/TR FAQ
1.How can I place an order for 1N4584A/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4584A/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 1N4584A/TR reliable?
The price and inventory of 1N4584A/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4584A/TR is usually 5 days.
3.What payment methods are accepted for 1N4584A/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4584A/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4584A/TR?
1N4584A/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4584A/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 1N4584A/TR?
For technical support, including 1N4584A/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4584A/TR requirements.
6.How does Aetrix verify that 1N4584A/TR is sourced from the original manufacturer or authorized distributors?
All 1N4584A/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 1N4584A/TR meets industry standards.
7.What is the process for return or replacement of 1N4584A/TR?
All 1N4584A/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4584A/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 1N4584A/TR part is unused and in its original packaging.
Return procedure for 1N4584A/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4584A/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…
