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Nexperia USA Inc. BZX79-B13,113
- Part No.:
- BZX79-B13,113
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
BZX79-B13,113.pdf
- Description:
- DIODE ZENER 13V 400MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:8,319
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Product details
Overview
BZX79-B13,113 from Nexperia is a ±2% tolerance Zener voltage regulator diode with nominal 13 V breakdown voltage at 5 mA test current, 50 Ω typical differential resistance, and 7.0 mV/K temperature coefficient. It operates in low-power stabilization circuits requiring stable reference voltages under 500 mW dissipation, such as power supply feedback networks and sensor biasing in industrial control modules.
For engineers reviewing the BZX79-B13,113 datasheet, BZX79-B13,113 pinout, BZX79-B13,113 application, or BZX79-B13,113 equivalent, key selection criteria include Zener voltage tolerance, dynamic impedance, thermal coefficient, reverse leakage at operating VR, and DO-35 package compatibility with through-hole PCB layouts.
Technical Context
This device functions as a two-terminal shunt voltage reference, maintaining regulation by conducting reverse current when applied voltage exceeds its specified Zener voltage. Its operation relies on controlled avalanche breakdown in silicon, with thermal coefficient optimized for minimal drift across −65 °C to +200 °C junction temperature range.
Designed for DC stabilization rather than transient suppression, it exhibits 100 nA maximum reverse leakage at 8 V (0.615×VZ), 50–170 Ω differential resistance depending on test current, and non-repetitive peak reverse power capability of 40 W for 100 μs pulses-enabling brief overvoltage clamping in protected linear supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.7–13.3 V at IZ = 5 mA; ensures precise 13 V reference within ±2% tolerance for feedback loop accuracy |
| Differential Resistance (rdiff) | 50 Ω typ. at IZ = 5 mA; determines output impedance and load regulation sensitivity |
| Temperature Coefficient (SZ) | 7.0 mV/K max.; quantifies voltage drift per degree Celsius-critical for temperature-stable references |
| Reverse Leakage (IR) | 100 nA max. at VR = 8 V; defines minimum quiescent current and error contribution in high-impedance bias networks |
| Total Power Dissipation (Ptot) | 500 mW at Tamb = 50 °C; sets maximum continuous DC power handling on standard PCB without heatsinking |
| Junction Temperature Range | −65 °C to +200 °C; supports operation in extended industrial and automotive under-hood environments |
Pinout & Package
Hermetically sealed axial-leaded SOD27 (DO-35) glass package with cathode indicated by a colored band. Leads are tinned copper alloy, compatible with wave and hand soldering per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-voltage reference node | Connected to circuit ground or lower potential; establishes reference polarity for shunt regulation |
| Cathode | Zener breakdown terminal / regulated output node | Connected to input voltage source via series resistor; maintains fixed voltage drop relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables tight regulation without post-manufacturing trimming in cost-sensitive industrial power supplies |
| 500 mW total power rating | Supports direct use in 5–12 V rail stabilization without external heat sinking on FR-4 PCBs |
| 100 nA reverse leakage at 8 V | Minimizes error current in high-impedance voltage divider networks used in precision analog sensing |
| DO-35 axial glass package | Provides hermetic sealing and proven reliability for long-term operation in humid or chemically aggressive environments |
Applications
| Industrial Power Supply Feedback | Automotive Sensor Biasing |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback converters using optocoupler feedback loops. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 13 V threshold to TL431-like comparator circuitry. Use Value: Maintains ±1% output regulation across line/load/temperature with no active compensation required. | Use Scenario: Providing stable bias voltage to pressure transducer bridge amplifiers in engine control units. IC Role / Device Role / Timing Role: Low-drift Zener reference establishing common-mode voltage for instrumentation amplifier inputs. Use Value: Limits sensor offset drift to <10 μV/°C, directly improving pressure measurement repeatability. |
| Consumer Audio DC Rail Clamping | Medical Instrumentation Reference |
Use Scenario: Clamping transient overvoltage on 12 V audio amplifier rails during hot-plug events. IC Role / Device Role / Timing Role: Passive shunt protector absorbing short-duration surges up to 40 W for 100 μs. Use Value: Prevents op-amp latch-up without adding complexity of TVS diodes or active crowbar circuits. | Use Scenario: Generating calibrated reference for 16-bit ADC front-end in portable ECG monitors. IC Role / Device Role / Timing Role: Precision voltage node defining full-scale input range for analog signal conditioning. Use Value: Enables <±0.05% gain error budget by contributing <0.02% of total system reference uncertainty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4742A | 12 V nominal, ±5% tolerance, 20 Ω rdiff, DO-41 package | Higher power (1 W), less precise voltage, larger footprint | Select when higher surge energy handling is needed and ±5% tolerance is acceptable |
| BZX85C13 | 13 V nominal, ±5% tolerance, 100 mW Ptot, DO-41 package | Lower power rating, wider tolerance, same voltage grade | Select for space-constrained designs where 100 mW dissipation suffices and cost is primary driver |
Compared with 1N4742A and BZX85C13, BZX79-B13,113 delivers tighter voltage accuracy and DO-35 compactness ideal for high-density industrial PCBs, while trading off absolute surge robustness and ultra-low-cost alternatives.
Availability
BZX79-B13,113 is available at Aetrix Electronics and suitable for industrial power supply feedback, automotive sensor biasing, consumer audio rail clamping, and medical instrumentation reference requiring stable component supply across multi-year production cycles.
Supply support for BZX79-B13,113 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 leader in discrete semiconductors, formed in 2017 from the former NXP Standard Products division, with manufacturing and R&D centers across Asia, Europe, and the Americas.
The BZX79 series belongs to Nexperia's legacy Zener diode portfolio, engineered specifically for cost-effective, high-reliability DC voltage regulation in industrial, automotive, and consumer electronics where precision, stability, and long-term parametric consistency are essential.
FAQ
What is the maximum continuous reverse current this diode can handle at 13 V?
The BZX79-B13,113 does not specify a maximum continuous reverse current; instead, its safe operating limit is defined by power dissipation. At 13 V, the maximum continuous Zener current is 38.5 mA (500 mW ÷ 13 V), assuming ambient temperature ≤50 °C and no PCB copper pour enhancement.
Can this diode be used in place of a 12 V Zener in an existing design?
No-BZX79-B13,113 is rated for 12.7–13.3 V at 5 mA, not 12 V. Substituting it for a 12 V part would raise the regulated voltage by ~1 V, potentially exceeding downstream IC absolute maximum ratings or altering feedback loop setpoints in power supplies.
Is the DO-35 package RoHS compliant and lead-free?
Yes-Nexperia's BZX79-B13,113 in SOD27 (DO-35) packaging meets RoHS Directive 2011/65/EU and is manufactured with lead-free terminations and halogen-free glass encapsulation, verified per Nexperia's material declarations dated 2023.
How does temperature affect its Zener voltage in real-world operation?
With a maximum temperature coefficient of +7.0 mV/K, the Zener voltage increases by up to 7 mV per °C rise in junction temperature. Over a 100 °C rise (e.g., from 25 °C to 125 °C), VZ may increase by up to 0.7 V-requiring derating or compensation in high-precision references.
BZX79-B13,113 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 13 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ALF2
BZX79-B13,113 FAQ
1.How can I place an order for BZX79-B13,113 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX79-B13,113 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 BZX79-B13,113 reliable?
The price and inventory of BZX79-B13,113 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX79-B13,113 is usually 5 days.
3.What payment methods are accepted for BZX79-B13,113?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX79-B13,113 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX79-B13,113?
BZX79-B13,113 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX79-B13,113 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 BZX79-B13,113?
For technical support, including BZX79-B13,113 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX79-B13,113 requirements.
6.How does Aetrix verify that BZX79-B13,113 is sourced from the original manufacturer or authorized distributors?
All BZX79-B13,113 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 BZX79-B13,113 meets industry standards.
7.What is the process for return or replacement of BZX79-B13,113?
All BZX79-B13,113 units undergo pre-shipment inspection (PSI). If there is an issue with BZX79-B13,113, 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 BZX79-B13,113 part is unused and in its original packaging.
Return procedure for BZX79-B13,113:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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