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Nexperia USA Inc. 1N4730A,113
- Part No.:
- 1N4730A,113
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4730A,113.pdf
- Description:
- DIODE ZENER 3.9V 1W DO41
- Quantity:
- Payment:
- Shipping:
Inventory:9,085
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Product details
Overview
1N4730A,113 from Nexperia is a 3.9 V ±5 % Zener voltage regulator diode in a hermetically sealed SOD66 (DO-41) glass package, rated for 1000 mW total power dissipation and 500 mA maximum forward current, used for low-voltage stabilization in linear power supplies and reference circuits.
For engineers reviewing the 1N4730A,113 datasheet, 1N4730A,113 pinout, 1N4730A,113 application, or 1N4730A,113 equivalent, this part serves as a precision shunt voltage reference with 9 Ω typical differential resistance, 64 mA test current, and 50 µA max reverse leakage at rated voltage - critical for analog biasing, overvoltage clamping, and feedback loop referencing.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable 3.9 V reference across varying load currents (64 mA test current, 50 mA working current), with thermal resistance of 110 K/W (junction-to-tie-point, 4 mm lead length) and junction temperature range from −65 °C to +200 °C.
It exhibits 1.2 V forward voltage at 200 mA, supports non-repetitive peak reverse current up to 1190 mA, and is characterized under thermal equilibrium conditions per IEC 60134 limiting values - enabling reliable operation in ambient temperatures up to 50 °C at full power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.9 V nominal, ±5 % tolerance - defines precise shunt regulation point for feedback networks |
| Test Current (Itest) | 64 mA - current at which VZ is specified; sets minimum operating current for stable regulation |
| Differential Resistance (rdif) | 9 Ω typical - determines output impedance and load regulation sensitivity |
| Total Power Dissipation (Ptot) | 1000 mW max - limits continuous power handling in ambient ≤50 °C without derating |
| Reverse Current (IR) | ≤50 µA at VR = 1 V - ensures low standby leakage in high-impedance reference paths |
| Forward Voltage (VF) | ≤1.2 V at IF = 200 mA - enables use as low-drop rectifier or clamp in dual-polarity circuits |
Pinout & Package
Hermetically sealed axial-leaded SOD66 (DO-41) glass package with 2 leads; cathode identified by a single black band on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated output node; reverse-biased during Zener operation |
| 2 (non-banded end) | Anode | Connected to ground or lower potential; completes current path through series resistor |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter drift in humid or industrial environments |
| ±5 % VZ tolerance | Enables direct replacement in cost-sensitive designs without trimming or calibration |
| 1000 mW power rating | Supports higher-current reference applications without external heat sinking |
| Low rdif (9 Ω) | Minimizes output voltage variation under dynamic load changes in feedback loops |
| −65 °C to +200 °C Tj | Permits operation in automotive engine compartments and industrial control cabinets |
Applications
| Linear Power Supply Reference | Overvoltage Clamp Circuit |
|---|---|
Use Scenario: Stabilizing output voltage in unregulated AC/DC transformer-based supplies with discrete pass transistors. IC Role / Device Role / Timing Role: Shunt voltage reference providing error signal to series pass element base/gate drive. Use Value: Maintains ±2 % output regulation across 10–100 mA load range using only one series resistor and no op-amp. |
Use Scenario: Protecting microcontroller I/O pins from transient surges exceeding 5 V logic rail. IC Role / Device Role / Timing Role: Reverse-biased clamping device diverting excess energy to ground before damage threshold. Use Value: Limits voltage to 3.9 V ±5 % with <50 µA leakage, preserving signal integrity during ESD events. |
| Analog Sensor Biasing | Feedback Loop Reference |
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) in industrial transmitters. IC Role / Device Role / Timing Role: Precision voltage source establishing known current through sensor bridge. Use Value: Delivers 3.9 V reference with <9 Ω output impedance, reducing measurement error from load variations. |
Use Scenario: Setting reference voltage in isolated flyback converter feedback network via optocoupler. IC Role / Device Role / Timing Role: Secondary-side shunt regulator controlling optocoupler LED current. Use Value: Enables tight output regulation (±1.5 %) with minimal component count and no secondary-side IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4730A (ON Semiconductor) | Same 3.9 V ±5 % VZ, but 1.5 W Ptot rating and 10 Ω rdif; DO-41 package identical | Higher power margin allows operation at elevated ambient temperatures without derating | Select when thermal headroom >100 °C or long-term reliability under sustained 800 mW load is required |
| BZX55-C3V9 (Vishay) | 3.9 V ±5 % VZ, 500 mW Ptot, 15 Ω rdif; DO-35 glass package with shorter leads | Lower power rating restricts use to low-current references (<25 mA); smaller footprint | Select for space-constrained PCBs where 3.9 V reference is needed at ≤300 mW dissipation |
Compared with the 1N4730A,113, the ON Semiconductor 1N4730A offers greater thermal robustness for high-power analog references, while the Vishay BZX55-C3V9 trades power capability for compact size - making each suitable for distinct layout and thermal constraints.
Availability
1N4730A,113 is available at Aetrix Electronics and suitable for linear power supplies, overvoltage protection circuits, analog sensor biasing, and isolated feedback loops requiring stable component supply and consistent Zener voltage performance.
Supply support for 1N4730A,113 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
Nexperia is a global semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET solutions with focus on efficiency, miniaturization, and sustainability.
The 1N47xxA series belongs to Nexperia's precision Zener regulator portfolio, engineered for stable voltage reference and clamping in cost-sensitive industrial, consumer, and automotive auxiliary systems.
FAQ
What is the maximum continuous power dissipation for 1N4730A,113?
The 1N4730A,113 is rated for 1000 mW total power dissipation at an ambient temperature of 50 °C. Derating is required above this temperature at 11.0 mW/°C, based on its 110 K/W thermal resistance from junction to tie-point with 4 mm lead length.
How is polarity identified on the 1N4730A,113 package?
The cathode is marked by a single black band on the glass body; lead adjacent to the banded end is Pin 1 (cathode), and the opposite lead is the anode (Pin 2). This matches the standard DO-41 axial package marking convention defined in Nexperia's data sheet Rev. 02.
Can 1N4730A,113 be used in place of a 3.3 V Zener diode?
No - the 1N4730A,113 has a nominal Zener voltage of 3.9 V ±5 % (3.71–4.09 V), not 3.3 V. Substituting it for a 3.3 V part would raise the regulated voltage by ~18 %, potentially damaging downstream circuitry or violating feedback setpoints.
What is the typical differential resistance and why does it matter?
The typical differential resistance is 9 Ω at 64 mA test current. This value quantifies how much the Zener voltage changes per mA of current variation - lower rdif improves regulation accuracy under dynamic loads, especially in feedback and reference applications where stability is critical.
1N4730A,113 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.9 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 9 Ohms
- Current - Reverse Leakage @ Vr:
- 50 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -65°C ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-41
1N4730A,113 FAQ
1.How can I place an order for 1N4730A,113 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4730A,113 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 1N4730A,113 reliable?
The price and inventory of 1N4730A,113 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4730A,113 is usually 5 days.
3.What payment methods are accepted for 1N4730A,113?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4730A,113 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4730A,113?
1N4730A,113 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4730A,113 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 1N4730A,113?
For technical support, including 1N4730A,113 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4730A,113 requirements.
6.How does Aetrix verify that 1N4730A,113 is sourced from the original manufacturer or authorized distributors?
All 1N4730A,113 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 1N4730A,113 meets industry standards.
7.What is the process for return or replacement of 1N4730A,113?
All 1N4730A,113 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4730A,113, 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 1N4730A,113 part is unused and in its original packaging.
Return procedure for 1N4730A,113:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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