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Microchip Technology 1N4696
- Part No.:
- 1N4696
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N4696.pdf
- Description:
- DIODE ZENER 9.1V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,322
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Product details
Overview
1N4696 from Microsemi is a 500 mW, 9.1 V ±5% glass axial-leaded Zener diode in DO-7 (DO-204AA) package, rated for operation from –65 °C to +175 °C, with 50 µA test current, 0.08 V max voltage regulation (10–100 µA), and 6.9 mA maximum DC Zener current. It serves as a precision voltage reference or shunt regulator in low-power analog circuits, power supply feedback paths, and overvoltage protection stages.
For engineers reviewing the 1N4696 datasheet, 1N4696 pinout, 1N4696 application, or 1N4696 equivalent, key selection criteria include its 9.1 V nominal Zener voltage, tight 0.08 V regulation spec over 10–100 µA, DO-7 hermetic glass package, –65 °C to +175 °C operating range, and compatibility with MIL-PRF-19500 screening options when prefixed with MQ/MX/MV/MSP.
Technical Context
The 1N4696 operates as a silicon junction Zener diode with metallurgically bonded internal structure compliant with JEDEC 1N4678–1N4717 registration. Its Zener breakdown mechanism delivers stable regulation across wide temperature and current ranges, supported by guaranteed voltage regulation ≤0.08 V between 10 µA and 100 µA test points.
It features a cathode band marking for polarity identification, tin-lead plated leads per MIL-STD-750 Method 2026, and nonsensitive ESD behavior per MIL-STD-750 Method 1020. Thermal resistance is 300 °C/W junction-to-lead (3/8″ lead length) and 360 °C/W junction-to-ambient on FR4 with defined copper layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 9.1 V ±5% - defines regulated output voltage under 50 µA test current; used for reference stability in feedback loops. |
| Zener Test Current | 50 µA - standardized bias point for measuring VZ; ensures repeatable characterization across production lots. |
| Max Voltage Regulation | 0.08 V - difference between VZ at 100 µA and 10 µA; critical for low-current precision reference applications. |
| Max Reverse Leakage | 1.0 µA @ 7.3 V - limits error current in high-impedance bias networks and sensing circuits. |
| Max DC Zener Current | 6.9 mA - maximum continuous current before exceeding 500 mW power limit at TL = 25 °C. |
| Operating Temperature | –65 °C to +175 °C - enables use in aerospace, downhole, and military environments without derating penalties. |
| Package | DO-7 (DO-204AA) - hermetically sealed glass axial-leaded package with mechanical robustness and long-term reliability. |
Pinout & Package
DO-7 (DO-204AA) is a hermetically sealed axial-leaded glass package with tin-lead plated leads. Cathode is marked by a band; device operates with banded end positive relative to anode during Zener conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink during forward bias; reference node during reverse bias | Connected to lower-potential side of circuit; forms return path for Zener current in shunt regulation. |
| Cathode | Current source during Zener conduction; higher-potential terminal | Marked by band; connected to regulated voltage node; must be held at potential ≥9.1 V above anode to activate regulation. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener series | Ensures interoperability and standardized testing across global supply chain and qualification programs. |
| Internally solder-bonded construction | Provides mechanical integrity and thermal stability matching MIL-PRF-19500 requirements for high-reliability variants. |
| Guaranteed regulation ≤0.08 V (10–100 µA) | Enables accurate low-current voltage references without external trimming or compensation. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Eliminates need for handling precautions or board-level ESD protection in assembly and field operation. |
| Inherently radiation-hardened | Validated per MicroNote 050; supports use in space-qualified and nuclear instrumentation systems. |
Applications
| Power Supply Feedback Reference | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Used in TL431-based or discrete op-amp feedback networks to set output voltage in linear and switching regulators. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 9.1 V threshold for error amplifier comparison. Use Value: Delivers <0.08 V regulation variation over 10–100 µA, minimizing output voltage drift across load transients. | Use Scenario: Placed across sensitive IC inputs or bus lines to clamp transient overvoltages below damage thresholds. IC Role / Device Role / Timing Role: Passive crowbar element conducting only when line voltage exceeds 9.1 V + dynamic impedance drop. Use Value: Limits clamping voltage to ≤9.18 V at 100 µA, protecting 10 V-rated logic or analog inputs without crowbarring normal operation. |
| Low-Power Sensor Biasing | Aerospace Voltage Monitoring |
Use Scenario: Supplies stable bias to high-impedance sensor bridges or photodiode amplifiers in battery-powered instrumentation. IC Role / Device Role / Timing Role: Low-current Zener reference generating fixed 9.1 V node for excitation or offset calibration. Use Value: Draws only 50 µA at regulation point, extending battery life while maintaining ±0.88% voltage accuracy over full temperature range. | Use Scenario: Monitors 12 V bus health in satellite subsystems where extended temperature and radiation tolerance are mandatory. IC Role / Device Role / Timing Role: Standalone voltage threshold detector interfaced to comparator input for fault flag generation. Use Value: Operates reliably from –65 °C to +175 °C and exhibits no parametric shift after total ionizing dose exposure per MicroNote 050. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4738A | 9.1 V ±5%, 1 W rating, DO-41 package, 10x higher power dissipation capability | Requires larger PCB footprint and thermal relief; unsuitable for space-constrained or ultra-low-power designs | Select when >500 mW surge handling or higher IZM (109 mA) is required; not a direct replacement due to different thermal profile and package size. |
| BZX55C9V1 | 9.1 V ±5%, 500 mW, DO-35 package, tighter capacitance spec (4 pF max), but lower temperature range (–65 °C to +150 °C) | Lacks radiation hardness validation and MIL-PRF-19500 screening path; limited to commercial/industrial use | Choose for cost-sensitive consumer applications where radiation tolerance and extended temperature are not required. |
Compared with 1N4696, the 1N4738A offers higher power margin but larger DO-41 packaging and different thermal resistance, while BZX55C9V1 provides similar voltage specs in DO-35 but omits radiation hardening and full military temperature compliance-making 1N4696 uniquely suited for high-reliability, extended-range, and radiation-exposed deployments.
Availability
1N4696 is available at Aetrix Electronics and suitable for aerospace power monitoring, downhole sensor biasing, military-grade voltage reference design, and radiation-tolerant instrumentation requiring stable component supply across extended temperature and lifecycle demands.
Supply support for 1N4696 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, radiation-hardened, and aerospace-grade components.
The 1N4696 belongs to Microsemi's legacy 1N4678–1N4717 DO-7 Zener family, engineered for precision voltage regulation in mission-critical analog circuits where extended temperature operation, hermetic sealing, and MIL-qualified screening are essential.
FAQ
What is the nominal Zener voltage and tolerance of the 1N4696?
The 1N4696 has a nominal Zener voltage of 9.1 V with a standard tolerance of ±5%. Tighter tolerances of ±2% (suffix C) and ±1% (suffix D) are available upon request. This voltage is measured at a test current of 50 µA and remains stable across its full operating temperature range from –65 °C to +175 °C.
What is the maximum voltage regulation specification for the 1N4696, and why does it matter?
The 1N4696 guarantees maximum voltage regulation of 0.08 V between 10 µA and 100 µA test currents. This parameter directly reflects how tightly the Zener voltage holds across varying bias conditions-critical for low-current reference applications such as sensor excitation or precision feedback networks where minimal drift is required.
Does the 1N4696 support military-grade screening, and how is it ordered?
Yes, the 1N4696 supports MIL-PRF-19500 screening levels including JAN, JANTX, JANTXV, and JANS. These are ordered by adding prefixes MQ, MX, MV, or MSP respectively to the base part number (e.g., MQ1N4696). Screening includes environmental stress testing, lot traceability, and extended reliability validation per military specifications.
What package type and marking does the 1N4696 use?
The 1N4696 uses the DO-7 (DO-204AA) hermetically sealed glass axial-leaded package. Polarity is indicated by a cathode band; the banded end is the cathode and must be held at higher potential than the anode during Zener operation. The part number "1N4696" is laser-marked or etched directly onto the glass body.
How does the 1N4696 perform under radiation exposure?
The 1N4696 is inherently radiation-hardened as documented in Microsemi MicroNote 050. It exhibits no significant parametric shift after total ionizing dose exposure, making it suitable for satellite, nuclear, and high-altitude avionics applications where single-event effects and cumulative dose tolerance are mandatory design requirements.
1N4696 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):
- 9.1 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 1 µA @ 6.9 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
1N4696 FAQ
1.How can I place an order for 1N4696 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4696 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 1N4696 reliable?
The price and inventory of 1N4696 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4696 is usually 5 days.
3.What payment methods are accepted for 1N4696?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4696 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4696?
1N4696 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4696 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 1N4696?
For technical support, including 1N4696 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4696 requirements.
6.How does Aetrix verify that 1N4696 is sourced from the original manufacturer or authorized distributors?
All 1N4696 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 1N4696 meets industry standards.
7.What is the process for return or replacement of 1N4696?
All 1N4696 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4696, 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 1N4696 part is unused and in its original packaging.
Return procedure for 1N4696:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4696 Tags
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