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Nexperia USA Inc. 1N4733A,113
- Part No.:
- 1N4733A,113
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4733A,113.pdf
- Description:
- DIODE ZENER 5.1V 1W DO41
- Quantity:
- Payment:
- Shipping:
Inventory:6,741
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Product details
Overview
1N4733A,113 from Nexperia is a 5.1 V ±5 % Zener voltage regulator diode in a hermetically sealed SOD66 (DO-41) glass package, rated for 1000 mW total power dissipation and 49 mA test current, used for precision low-voltage stabilization in linear power supplies and reference circuits.
For engineers reviewing the 1N4733A,113 datasheet, 1N4733A,113 pinout, 1N4733A,113 application, or 1N4733A,113 equivalent, key selection criteria include Zener voltage tolerance, differential resistance (7 Ω), reverse leakage (≤10 µA at 1 V), thermal resistance (110 K/W), and axial-leaded glass package suitability for through-hole PCB assembly and high-reliability industrial environments.
Technical Context
This discrete Zener diode operates in reverse breakdown to maintain stable DC voltage across its terminals under varying load and input conditions. It exhibits a nominal 5.1 V Zener voltage at 49 mA test current, with 7 Ω differential resistance ensuring minimal voltage drift over operating current range.
Designed for thermal equilibrium operation in still air at 25 °C, it supports junction temperatures from −65 °C to +200 °C and delivers ≤1.2 V forward voltage at 200 mA, enabling bidirectional use in clamping and protection roles alongside primary regulation function.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 5.1 V nominal ±5 % - defines precise regulation point for 5 V rail stabilization |
| Test Current Itest | 49 mA - standardized bias condition for VZ measurement and datasheet compliance |
| Differential Resistance rdif | 7 Ω - low dynamic impedance ensures <10 mV output variation per 70 mA load change |
| Reverse Current IR | ≤10 µA at 1 V - confirms sharp knee and low leakage below breakdown threshold |
| Total Power Dissipation Ptot | 1000 mW - enables continuous regulation at up to 196 mA at 5.1 V in ambient ≤50 °C |
| Forward Voltage VF | ≤1.2 V at 200 mA - supports use as polarity-sensitive clamp or series rectifier in dual-role designs |
| Junction Temperature Range | −65 °C to +200 °C - suitable for extended industrial and automotive under-hood applications |
Pinout & Package
Hermetically sealed SOD66 (DO-41) axial glass package with 2 leads: cathode identified by a single black band; anode is unmarked lead. Package dimensions: 2.6 mm diameter × 25.4 mm length, 4 mm lead length standard for thermal modeling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated output node; reverse-biased during Zener operation |
| 2 (unbanded end) | Anode | Connected to ground or lower-potential rail; establishes reference return path |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter drift in humid or harsh environments |
| ±5 % Zener voltage tolerance | Enables direct replacement in 5 V reference designs without recalibration or trimming |
| 110 K/W thermal resistance (j-t) | Supports predictable derating curves for board-level thermal management in enclosed enclosures |
| Low 7 Ω differential resistance | Minimizes output impedance for improved line/load regulation in analog feedback paths |
| 200 °C max junction temperature | Permits operation in high-ambient industrial control cabinets without forced cooling |
Applications
| Linear Power Supply Regulation | Microcontroller Reference Voltage |
|---|---|
|
Use Scenario: Stabilizing unregulated 7–12 V DC input to deliver clean 5.1 V for analog subsystems in bench power supplies. IC Role / Device Role / Timing Role: Primary voltage reference element providing fixed reverse-breakdown potential. Use Value: Maintains ±0.255 V regulation window over 10–100 mA load range due to 7 Ω rdif and tight VZ tolerance. |
Use Scenario: Supplying stable 5.1 V reference to ADC reference pins and reset supervisor ICs in embedded controllers. IC Role / Device Role / Timing Role: Precision shunt reference establishing absolute voltage scale for analog-to-digital conversion. Use Value: Delivers ≤10 µA leakage at 1 V reverse bias, preventing reference node loading and quantization error in 12-bit+ ADCs. |
| Overvoltage Clamp Protection | Signal Level Translation |
|
Use Scenario: Protecting GPIO inputs of microcontrollers from transient spikes exceeding 5.5 V in industrial sensor interfaces. IC Role / Device Role / Timing Role: Fast-acting shunt clamp activated above 5.1 V breakdown threshold. Use Value: Limits clamped voltage to ≤5.46 V (5.1 V + 7 Ω × 50 mA) during 100 ns transients, within I/O absolute maximum ratings. |
Use Scenario: Shifting 3.3 V logic signals to 5 V compatible levels using Zener-based level-shifter topology. IC Role / Device Role / Timing Role: Bidirectional voltage limiter defining upper rail for open-drain signal translation. Use Value: Leverages ≤1.2 V forward drop at 200 mA to enable low-loss pull-up path while maintaining 5.1 V ceiling on high-side rail. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4733A-T | Same electrical specs; tape-and-reel packaging (3000 pcs/reel) vs. bulk (113 = 1000 pcs/bulk) | No functional difference; suited for automated SMT placement instead of manual/hand-soldered through-hole | Select for high-volume production requiring pick-and-place compatibility |
| BZX55-C5V1 | 5.1 V ±5 %, but 500 mW Ptot, higher rdif (10 Ω), DO-35 package (smaller glass body) | Limited to lower-power applications; unsuitable for >100 mA continuous regulation or high-temp ambient | Choose only when board space is constrained and power demand stays below 100 mW |
Compared with 1N4733A-T and BZX55-C5V1, the 1N4733A,113 offers full 1000 mW power handling and lowest differential resistance in its class, making it optimal for robust 5 V reference generation where thermal margin and regulation stability are critical.
Availability
1N4733A,113 is available at Aetrix Electronics and suitable for linear power supplies, microcontroller reference circuits, overvoltage protection systems, and signal level translation requiring stable component supply and traceable sourcing.
Supply support for 1N4733A,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 devices with focus on efficiency, reliability, and miniaturization.
The 1N47xxA series belongs to Nexperia's general-purpose Zener regulator portfolio, engineered for cost-effective, high-stability voltage reference and clamping in industrial, consumer, and computing power systems.
FAQ
What is the maximum continuous reverse current the 1N4733A,113 can sustain without degradation?
The device is rated for 49 mA test current and supports continuous Zener operation up to 196 mA at 5.1 V when ambient temperature is held at ≤50 °C, based on its 1000 mW power rating and thermal resistance of 110 K/W. Derating is required above 50 °C ambient per the datasheet curve.
Can the 1N4733A,113 be used in surface-mount designs?
No - the 1N4733A,113 uses an axial-leaded SOD66 (DO-41) glass package designed exclusively for through-hole mounting. For SMT equivalents, consider the PZM5.1NB or BZX84-C5V1 in SOT-23, which differ electrically and thermally.
How does the 7 Ω differential resistance affect regulation accuracy under load variation?
A 7 Ω rdif means output voltage shifts by 7 mV per 1 mA change in Zener current. Over a 50 mA load swing, this results in ±35 mV deviation - well within ±0.255 V tolerance band, confirming suitability for precision 5 V references in low-noise analog circuits.
Is the 1N4733A,113 RoHS compliant and halogen-free?
Yes - Nexperia certifies the 1N4733A,113 as RoHS compliant (2011/65/EU) and halogen-free per IEC 61249-2-21, with material declarations available via Nexperia's product change notification system and official component database.
1N4733A,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):
- 5.1 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 7 Ohms
- Current - Reverse Leakage @ Vr:
- 10 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
1N4733A,113 FAQ
1.How can I place an order for 1N4733A,113 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4733A,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 1N4733A,113 reliable?
The price and inventory of 1N4733A,113 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4733A,113 is usually 5 days.
3.What payment methods are accepted for 1N4733A,113?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4733A,113 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4733A,113?
1N4733A,113 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4733A,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 1N4733A,113?
For technical support, including 1N4733A,113 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4733A,113 requirements.
6.How does Aetrix verify that 1N4733A,113 is sourced from the original manufacturer or authorized distributors?
All 1N4733A,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 1N4733A,113 meets industry standards.
7.What is the process for return or replacement of 1N4733A,113?
All 1N4733A,113 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4733A,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 1N4733A,113 part is unused and in its original packaging.
Return procedure for 1N4733A,113:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4733A,113 Tags
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