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Nexperia USA Inc. 1N4734A,133
- Part No.:
- 1N4734A,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4734A,133.pdf
- Description:
- DIODE ZENER 5.6V 1W DO41
- Quantity:
- Payment:
- Shipping:
Inventory:748
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Product details
Overview
1N4734A,133 from Nexperia is a 5.6 V ±5 % Zener voltage regulator diode in a hermetically sealed SOD66 (DO-41) glass package, rated for 1000 mW total power dissipation and 45 mA test current, used for low-voltage stabilization in linear power supplies and reference circuits.
For engineers reviewing the 1N4734A,133 datasheet, 1N4734A,133 pinout, 1N4734A,133 application, or 1N4734A,133 equivalent, this part serves as a precision shunt voltage reference with 5 Ω typical differential resistance, stable operation up to +200 °C junction temperature, and axial-leaded through-hole mounting compatibility.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable 5.6 V output across varying load currents, with specified test current of 45 mA and maximum reverse current of 10 µA at 3.36 V. Its thermal resistance from junction to tie-point is 110 K/W with 4 mm lead length.
The device exhibits 1.2 V forward voltage at 200 mA and supports non-repetitive peak reverse current up to 810 mA. It is designed for DC voltage regulation where low-cost, proven reliability, and axial-leaded mechanical robustness are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener voltage (VZ) | 5.6 V nominal ±5 % - defines regulated output voltage under 45 mA test current |
| Power dissipation (Ptot) | 1000 mW max - sets maximum continuous thermal load at Tamb = 50 °C |
| Differential resistance (rdif) | 5 Ω typical at IZ = 45 mA - determines output impedance and regulation sensitivity |
| Reverse current (IR) | ≤10 µA at VR = 3.36 V - ensures low leakage below knee voltage |
| Forward voltage (VF) | ≤1.2 V at IF = 200 mA - defines conduction loss in forward-biased protection paths |
| Junction temperature (Tj) | −65 °C to +200 °C - enables operation in extended industrial and automotive ambient environments |
Pinout & Package
Hermetically sealed SOD66 (DO-41) axial-glass package with 2 leads; cathode identified by a colored 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 rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter drift in humid or harsh environments |
| ±5 % voltage tolerance | Enables predictable regulation without post-manufacture trimming in cost-sensitive designs |
| 1000 mW power rating | Supports >100 mA load current capability when combined with appropriate series resistor |
| 5 Ω dynamic impedance | Delivers <1 % output variation over 10–100 mA load range in shunt regulator configurations |
Applications
| Low-Voltage Power Supply Regulation | Reference Voltage Source |
|---|---|
Use Scenario: Stabilizing unregulated 9 V DC input to fixed 5.6 V for analog sensor biasing in industrial controllers. IC Role / Device Role / Timing Role: Shunt voltage regulator providing passive feedback-controlled output voltage. Use Value: Maintains 5.6 V ±0.28 V across 5–40 mA load variations without active circuitry. |
Use Scenario: Generating precise 5.6 V reference for ADC input scaling in data acquisition modules. IC Role / Device Role / Timing Role: Passive voltage reference element in ratiometric measurement circuits. Use Value: Delivers stable reference with ≤5 Ω output impedance, minimizing gain error from source loading. |
| Overvoltage Protection Clamp | Signal Level Translation |
Use Scenario: Clamping 0–12 V analog signals to protect 5 V microcontroller inputs from transient overvoltage. IC Role / Device Role / Timing Role: Reverse-biased Zener acting as voltage-limited sink during fault conditions. Use Value: Activates at 5.6 V with <10 µA leakage below 3.36 V, ensuring minimal signal distortion during normal operation. |
Use Scenario: Shifting TTL logic high level (2.4–5 V) to match 5.6 V interface threshold in mixed-voltage systems. IC Role / Device Role / Timing Role: Forward-biased diode drop adder in level-shifting networks. Use Value: Provides consistent ~1.2 V forward drop at 200 mA, enabling predictable offset addition without active components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4734A (ON Semiconductor) | Same 5.6 V ±5 % rating, 1000 mW Ptot, but 7 Ω rdif vs. Nexperia's 5 Ω | Higher dynamic impedance may reduce regulation accuracy under fast load transients | Select when sourcing from ON Semi distribution channels; verify layout thermal relief for equivalent derating |
| BZX55-C5V6 (Vishay) | 5.6 V ±5 %, 500 mW Ptot, 10 Ω rdif, DO-35 package (smaller glass body) | Lower power rating limits use to ≤50 mA loads; smaller footprint suits space-constrained PCBs | Choose for compact designs with lower power demands; confirm thermal margin with reduced surface area |
Compared with 1N4734A,133, the ON Semiconductor variant offers identical voltage spec but higher impedance, while the Vishay BZX55-C5V6 trades power capacity and regulation precision for board space savings-selection depends on thermal budget, load stability requirements, and physical layout constraints.
Availability
1N4734A,133 is available at Aetrix Electronics and suitable for industrial power supplies, sensor reference circuits, and overvoltage protection networks requiring stable component supply and long-term parametric consistency.
Supply support for 1N4734A,133 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, miniaturization, and automotive-grade quality.
The 1N47xxA series belongs to Nexperia's general-purpose Zener regulator portfolio, engineered for cost-effective, thermally robust voltage stabilization in industrial and consumer power management applications.
FAQ
What is the maximum continuous reverse current the 1N4734A,133 can handle at its rated Zener voltage?
The 1N4734A,133 is rated for a working current (IZ) of 2 mA minimum and 162 mA maximum at 5.6 V, with non-repetitive peak reverse current up to 810 mA. Continuous operation should remain within the 1000 mW power limit, corresponding to ≤178 mA at 5.6 V under ideal thermal conditions.
How does the 5 Ω differential resistance affect regulation accuracy in a shunt configuration?
A 5 Ω rdif means a 10 mA change in Zener current produces only a 50 mV shift in output voltage. In a typical shunt regulator with 10–100 mA load variation, this yields <0.5 % output deviation-enabling stable biasing for precision analog stages without additional error correction.
Can the 1N4734A,133 be used in surface-mount designs?
No-the 1N4734A,133 uses an axial-leaded SOD66 (DO-41) glass package intended for through-hole mounting. It lacks solder pads or land patterns for reflow assembly. For SMT equivalents, consider Nexperia's BZX384-B5V6 (SOT-23) or PZM5.6NB (SOD-123), which differ in power rating and thermal behavior.
What is the significance of the "133" suffix in the full part number 1N4734A,133?
The "133" is Nexperia's internal packaging and reel code indicating bulk packaging in ammo-pack format per JEDEC standard J-STD-020, with tape-and-reel option available under alternate ordering codes. It does not affect electrical specifications or reliability grading.
1N4734A,133 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 5 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 2 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
1N4734A,133 FAQ
1.How can I place an order for 1N4734A,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4734A,133 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 1N4734A,133 reliable?
The price and inventory of 1N4734A,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4734A,133 is usually 5 days.
3.What payment methods are accepted for 1N4734A,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4734A,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4734A,133?
1N4734A,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4734A,133 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 1N4734A,133?
For technical support, including 1N4734A,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4734A,133 requirements.
6.How does Aetrix verify that 1N4734A,133 is sourced from the original manufacturer or authorized distributors?
All 1N4734A,133 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 1N4734A,133 meets industry standards.
7.What is the process for return or replacement of 1N4734A,133?
All 1N4734A,133 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4734A,133, 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 1N4734A,133 part is unused and in its original packaging.
Return procedure for 1N4734A,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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