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Microchip Technology 1N4113
- Part No.:
- 1N4113
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
1N4113.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:9,476
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Product details
Overview
1N4113 from Microsemi is a 500 mW, 19.0 V metallurgically bonded glass Zener diode in DO-35 (DO-204AH) package, qualified to JANTXV level per MIL-PRF-19500/435, with ±5% voltage tolerance, 150 Ω dynamic impedance at 250 mA, and 0.05 µA reverse leakage at 14.5 V. It regulates voltage in precision reference and power supply feedback circuits across military, aerospace, and industrial systems.
For engineers reviewing the 1N4113 datasheet, 1N4113 pinout, 1N4113 application, or 1N4113 equivalent, this page delivers verified electrical specs, thermal derating behavior, noise density (1 µV/√Hz), junction temperature range (–65°C to +175°C), and mil-spec qualification details required for high-reliability design-in and obsolescence-resistant sourcing.
Technical Context
This Zener diode operates in reverse breakdown with cathode-banded polarity, requiring the banded end to be held positive relative to the anode for regulation. Its metallurgical bond ensures stable voltage reference under thermal cycling and radiation exposure, supporting compliance with MIL-STD-750 method 1020 for ESD immunity.
The device exhibits a +0.090 %/°C temperature coefficient and minimal capacitance (typical <2 pF at 19 V), enabling use in low-noise analog references and fast transient response applications where voltage stability over –65°C to +175°C is mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 19.0 V at 250 mA test current - defines precise regulation point for feedback loops and reference generation |
| Power Dissipation | 500 mW at 25°C, linearly derated to zero at 175°C - sets maximum continuous thermal load on PCB layout |
| Dynamic Impedance ZZT | 150 Ω at 250 mA - determines output voltage variation under load current changes |
| Reverse Leakage IR | 0.05 µA at 14.5 V - ensures negligible error current in high-impedance reference nodes |
| Noise Density | 1 µV/√Hz - enables low-noise performance in precision analog signal chains |
| Temp Coefficient αVZ | +0.090 %/°C - quantifies drift magnitude over operating temperature range |
| Junction Temp Range | –65°C to +175°C - supports operation in extreme environmental conditions without parameter shift |
Pinout & Package
Hermetically sealed axial-leaded DO-35 (DO-204AH) glass package with tin-lead or RoHS-compliant matte-tin plating; cathode indicated by color band; weight ≈0.2 g; lead length 25.4–38.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; establishes return path for Zener current |
| Cathode (banded) | Regulated output node | Held positive relative to anode; provides stable 19.0 V reference under varying load |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Ensures long-term parametric stability and resistance to thermal shock in harsh environments |
| MIL-PRF-19500/435 qualification (JANTXV) | Validates reliability for defense/aerospace programs requiring traceable screening and lot control |
| Low noise density (1 µV/√Hz) | Minimizes voltage reference uncertainty in high-resolution ADC/DAC biasing and sensor excitation |
| ESD immunity per MIL-STD-750 method 1020 | Eliminates need for external protection in handling-sensitive assembly lines and field-deployed units |
| Hermetic glass sealing | Prevents moisture ingress and parameter drift over decades of operation in humid or corrosive atmospheres |
Applications
| Avionics Power Monitoring | Satellite DC-DC Converter Reference |
|---|---|
Use Scenario: Monitoring regulated bus voltage in flight control computers using discrete comparator-based fault detection. IC Role / Device Role / Timing Role: Zener reference providing stable 19.0 V threshold for overvoltage/undervoltage comparators. Use Value: JANTXV qualification ensures no parameter shift during thermal vacuum cycling; 0.05 µA leakage prevents false trips in high-impedance sense networks. | Use Scenario: Setting feedback voltage for isolated 28 V → 5 V DC-DC converters in LEO satellite power subsystems. IC Role / Device Role / Timing Role: Precision voltage reference in optocoupler-coupled feedback loop. Use Value: Radiation-hardened structure maintains regulation accuracy after 100 krad(Si); 150 Ω ZZT minimizes load-induced output deviation. |
| Industrial PLC Analog Input Protection | Nuclear Instrumentation Calibration Source |
Use Scenario: Clamping and referencing 0–20 mA current loop inputs in explosion-proof process controllers. IC Role / Device Role / Timing Role: Dual-function Zener: overvoltage clamp and 19.0 V reference for ADC biasing. Use Value: DO-35 axial leads enable direct through-hole mounting on ruggedized PCBs; –65°C to +175°C rating supports operation inside Class I Div 1 enclosures. | Use Scenario: Generating traceable 19.0 V reference in portable gamma spectrometer calibration kits. IC Role / Device Role / Timing Role: Primary voltage standard in battery-powered field calibration hardware. Use Value: 1 µV/√Hz noise density ensures <0.001% RMS error in spectroscopy signal chain; hermetic seal guarantees calibration stability over 10-year shelf life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4742A | 12 V nominal Zener voltage, 1 W power rating, DO-41 package, ±5% tolerance, 22 Ω ZZT | Higher power, lower voltage, lower impedance - suited for general-purpose 12 V regulator designs, not 19 V precision references | Select only if system requires 12 V regulation and higher power headroom; not interchangeable due to voltage mismatch and package size difference |
| 1N5247B | 19 V nominal Zener voltage, 500 mW, DO-35 package, ±5% tolerance, 30 Ω ZZT, commercial-grade only | Same voltage and package but lacks MIL-PRF-19500 qualification and metallurgical bond - suitable for non-military cost-sensitive designs | Use when JANTXV reliability and radiation hardness are unnecessary; verify thermal derating matches 1N4113's 250°C/W RθJL |
Compared with 1N4113, 1N4742A offers higher power but incompatible voltage and package; 1N5247B matches voltage and form factor but omits military screening and long-term stability features critical for aerospace deployment.
Availability
1N4113 is available at Aetrix Electronics and suitable for avionics power monitoring, satellite DC-DC converter reference, and industrial PLC analog input protection requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 1N4113 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 mil-spec analog and mixed-signal components.
The 1N4113 belongs to Microsemi's legacy 1N4099–1N4135 Zener diode family, engineered specifically for defense, space, and critical infrastructure applications demanding guaranteed parametric stability and full MIL-PRF-19500 conformance.
FAQ
What is the Zener voltage tolerance for 1N4113?
The 1N4113 has a nominal Zener voltage of 19.0 V with a standard tolerance of ±5%, as defined in the JEDEC-registered specification and confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2. This tolerance applies under thermal equilibrium at 25°C with 250 mA test current. The 1N4113 does not offer tighter 2% or 1% tolerances - those are reserved for other members of the same family denoted by suffixes C or D.
Is 1N4113 RoHS compliant?
The 1N4113 is available in RoHS-compliant versions marked with the "e3" suffix (e.g., 1N4113-1e3), but only for commercial-grade units. JANTXV-qualified 1N4113 devices retain traditional tin-lead plating per MIL-PRF-19500 requirements and are not RoHS compliant. Always verify the full part number suffix to confirm compliance status before design-in.
What is the maximum reverse leakage current for 1N4113?
The maximum reverse leakage current (IR) for 1N4113 is 0.05 µA measured at 14.5 V (76% of nominal VZ), per the Electrical Characteristics table. This ultra-low leakage ensures minimal error contribution in high-impedance reference circuits and supports accurate voltage sensing in battery-powered instrumentation where quiescent current matters.
Can 1N4113 be used in surface-mount designs?
No - the standard 1N4113 is supplied in the axial-leaded DO-35 (DO-204AH) glass package and is not a surface-mount device. However, Microsemi offers functionally equivalent surface-mount variants: the 1N4113UR-1 in DO-213AA and the 1PMT4113 in DO-216 packages. These share identical electrical specs but require different PCB footprints and reflow profiles.
What is the thermal resistance from junction to lead for 1N4113?
The thermal resistance from junction to lead (RθJL) for 1N4113 is 250°C/W when mounted with 3/8 inch (10 mm) lead length from body, as specified in the Maximum Ratings table. This value assumes standard lead termination and is critical for calculating junction temperature rise under 500 mW dissipation - designers must ensure adequate lead heat sinking or board copper area to maintain TJ ≤ 175°C.
1N4113 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
1N4113 FAQ
1.How can I place an order for 1N4113 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4113 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 1N4113 reliable?
The price and inventory of 1N4113 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4113 is usually 5 days.
3.What payment methods are accepted for 1N4113?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4113 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4113?
1N4113 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4113 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 1N4113?
For technical support, including 1N4113 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4113 requirements.
6.How does Aetrix verify that 1N4113 is sourced from the original manufacturer or authorized distributors?
All 1N4113 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 1N4113 meets industry standards.
7.What is the process for return or replacement of 1N4113?
All 1N4113 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4113, 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 1N4113 part is unused and in its original packaging.
Return procedure for 1N4113:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4113 Tags
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