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Nexperia USA Inc. 1N4732A,113
- Part No.:
- 1N4732A,113
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4732A,113.pdf
- Description:
- DIODE ZENER 4.7V 1W DO41
- Quantity:
- Payment:
- Shipping:
Inventory:4,772
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Product details
Overview
1N4732A,113 from Nexperia is a 4.7 V ±5 % Zener voltage regulator diode in a hermetically sealed SOD66 (DO-41) glass package, rated for 1000 mW total power dissipation and 53 mA test current, used for low-voltage stabilization in linear power supplies and reference circuits.
For engineers reviewing the 1N4732A,113 datasheet, 1N4732A,113 pinout, 1N4732A,113 application, or 1N4732A,113 equivalent, this page delivers verified Zener parameters, cathode/anode terminal mapping, thermal resistance (110 K/W), differential resistance (8 Ω), and real-world use cases in precision biasing and overvoltage protection.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable 4.7 V reference under regulated current conditions. It exhibits a typical differential resistance of 8 Ω at 53 mA test current and supports up to 500 mA forward current, with junction temperature rated from −65 °C to +200 °C.
Designed for DC voltage regulation in discrete analog circuits, it relies on thermal equilibrium in still air per IEC 60134 limiting values, with thermal resistance from junction to tie-point specified at 110 K/W for 4 mm lead length.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.7 V nominal, ±5 % tolerance - defines precise DC reference level for feedback or bias networks |
| Test Current (Itest) | 53 mA - operating point where VZ and differential resistance are specified |
| Differential Resistance (rdif) | 8 Ω at Itest - determines output impedance and load regulation sensitivity |
| Total Power Dissipation (Ptot) | 1000 mW at Tamb = 50 °C - sets maximum continuous DC power handling in standard mounting |
| Forward Voltage (VF) | ≤1.2 V at IF = 200 mA - ensures low-loss conduction when used as clamp or rectifier |
| Reverse Current (IR) | ≤10 µA at VR = 1 V - guarantees minimal leakage in high-impedance reference paths |
Pinout & Package
Hermetically sealed axial-leaded SOD66 (DO-41) glass package with 2 terminals; cathode identified by a colored band.
| 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 bias path for breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| Stable Zener voltage | 4.7 V ±5 % at 53 mA - enables repeatable DC reference without trimming |
| Low dynamic impedance | 8 Ω differential resistance - minimizes output voltage shift under load variation |
| High power rating | 1000 mW dissipation - supports robust operation in unregulated input stages |
| Wide temperature range | −65 °C to +200 °C junction operation - suitable for industrial and automotive ambient extremes |
Applications
| Linear Power Supply Reference | Overvoltage Clamp Circuit |
|---|---|
Use Scenario: Stabilizing output voltage in unregulated transformer-rectifier-capacitor supplies. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage reference in feedback loop or post-regulation stage. Use Value: Maintains 4.7 V reference with ≤0.235 V deviation across ±5 % tolerance, enabling predictable dropout margin for downstream LDOs. |
Use Scenario: Protecting microcontroller I/O pins from transient overvoltage events. IC Role / Device Role / Timing Role: Reverse-biased clamping element diverting excess energy to ground. Use Value: Activates at 4.7 V with 8 Ω dynamic impedance, limiting pin voltage rise within safe logic thresholds during ESD or surge events. |
| Precision Bias Generator | Analog Sensor Excitation |
Use Scenario: Providing stable bias current to op-amp input stages or transistor bases. IC Role / Device Role / Timing Role: Shunt regulator establishing fixed voltage node for current-setting resistors. Use Value: Delivers <10 µA leakage at 1 V reverse bias, preserving high-impedance bias network accuracy. |
Use Scenario: Supplying excitation voltage to resistive temperature detectors (RTDs) or strain gauges. IC Role / Device Role / Timing Role: Low-noise DC reference source for bridge excitation. Use Value: 4.7 V output with 8 Ω impedance ensures <0.5 mV error contribution under 60 µA sensor current draw. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4732A-T | Same electrical specs; tape-and-reel packaging (vs. bulk/ammopack for ,113); identical SOD66 footprint | No functional difference; optimized for automated SMT placement rather than manual/hand-soldered prototyping | Select for high-volume PCB assembly where reel-fed pick-and-place is used |
| BZX55-C4V7 | 4.7 V ±5 %, but 500 mW Ptot rating and higher rdif (10 Ω); DO-35 package (smaller, less rugged) | Limited power handling and thermal margin; unsuitable for >500 mW dissipation or high-ambient environments | Choose only for space-constrained, low-power designs where 1000 mW headroom is unnecessary |
Compared with 1N4732A,113, the 1N4732A-T offers identical regulation performance with packaging suited to production automation, while BZX55-C4V7 trades power capability and thermal robustness for smaller size-making the ,113 optimal for reliability-critical, medium-power analog references.
Availability
1N4732A,113 is available at Aetrix Electronics and suitable for linear power supplies, overvoltage protection circuits, precision bias networks, and analog sensor excitation requiring stable component supply and long-term parametric consistency.
Supply support for 1N4732A,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 general-purpose Zener regulator portfolio, engineered for cost-effective, thermally robust DC voltage stabilization in industrial, consumer, and computing power systems.
FAQ
What is the maximum reverse voltage before breakdown for 1N4732A,113?
The 1N4732A,113 is specified to regulate at 4.7 V ±5 % when operated at its 53 mA test current. Breakdown begins near 4.465 V (−5 % limit), and full regulation is established above that threshold. It is not rated for sustained operation below 4.465 V in Zener mode, nor above 4.935 V without exceeding tolerance bands.
Can 1N4732A,113 be used in surface-mount designs?
No - the 1N4732A,113 uses an axial-leaded SOD66 (DO-41) glass package designed for through-hole mounting. Its leads require hole placement and soldering on PCBs with plated-through vias. For SMT, consider functionally equivalent devices like MMBZ5225B (SOT-23) or BZX84-C4V7 (SOT-23), which differ electrically and thermally.
How does thermal resistance affect derating at elevated ambient temperatures?
With Rth(j-t) = 110 K/W and Tj(max) = +200 °C, power must be derated linearly above 50 °C ambient: Pderated = 1000 mW × (1 − (Tamb − 50)/150). At 100 °C ambient, max allowable dissipation drops to ~667 mW to prevent junction overheating.
Is the 1N4732A,113 suitable for AC signal clipping applications?
Yes - its symmetric forward conduction (≤1.2 V at 200 mA) and sharp reverse breakdown enable bidirectional clipping. However, due to its 8 Ω dynamic impedance and 1000 mW rating, it is best suited for low-frequency (<1 MHz), moderate-current (<100 mA peak) clipping where thermal stability matters more than speed.
1N4732A,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):
- 4.7 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 8 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
1N4732A,113 FAQ
1.How can I place an order for 1N4732A,113 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4732A,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 1N4732A,113 reliable?
The price and inventory of 1N4732A,113 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4732A,113 is usually 5 days.
3.What payment methods are accepted for 1N4732A,113?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4732A,113 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4732A,113?
1N4732A,113 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4732A,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 1N4732A,113?
For technical support, including 1N4732A,113 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4732A,113 requirements.
6.How does Aetrix verify that 1N4732A,113 is sourced from the original manufacturer or authorized distributors?
All 1N4732A,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 1N4732A,113 meets industry standards.
7.What is the process for return or replacement of 1N4732A,113?
All 1N4732A,113 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4732A,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 1N4732A,113 part is unused and in its original packaging.
Return procedure for 1N4732A,113:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4732A,113 Tags
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