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Nexperia USA Inc. BZX79-B16,113
- Part No.:
- BZX79-B16,113
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
BZX79-B16,113.pdf
- Description:
- DIODE ZENER 16V 400MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:7,100
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Product details
Overview
BZX79-B16,113 from Nexperia is a ±2% tolerance Zener voltage regulator diode with nominal 16 V breakdown voltage at 5 mA test current, 50 Ω typical differential resistance, and −65 °C to +200 °C junction temperature range. It operates as a low-power precision voltage reference in biasing, overvoltage protection, and analog signal conditioning circuits.
For engineers reviewing the BZX79-B16,113 datasheet, BZX79-B16,113 pinout, BZX79-B16,113 application, or BZX79-B16,113 equivalent, key selection criteria include Zener voltage tolerance (±2%), thermal resistance (380 K/W), non-repetitive peak reverse power (40 W), and DO-35 package compatibility with through-hole PCB assembly.
Technical Context
This diode functions as a two-terminal passive voltage reference, relying on controlled avalanche or Zener breakdown in silicon PN junction under reverse bias. Its regulation performance depends on stable test current (5 mA), defined thermal path (junction-to-ambient Rth j-a = 380 K/W), and operating temperature range (−65 °C to +200 °C).
The device exhibits a negative temperature coefficient of +10.4 mV/K at 5 mA, indicating voltage increases with temperature for this 16 V variant. Its 1.5 A non-repetitive peak reverse current rating supports transient surge suppression when paired with appropriate series impedance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.7 V to 16.3 V at IZ = 5 mA - ensures tight regulation within ±2% for precision reference use |
| Differential Resistance (rdif) | 50 Ω max at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | 50 nA max at VR = 11.2 V - guarantees low leakage in high-impedance bias networks |
| Total Power Dissipation (Ptot) | 500 mW at Tamb = 50 °C - defines continuous DC power handling on standard PCB without heatsink |
| Non-repetitive Peak Reverse Power (PZSM) | 40 W at tp = 100 μs - enables short-duration surge clamping in protection circuits |
| Junction Temperature Range (Tj) | −65 °C to +200 °C - supports operation in extended industrial and automotive environments |
Pinout & Package
Hermetically sealed glass SOD27 (DO-35) axial-leaded package with cathode indicated by a colored band. Leads are tinned copper-clad steel, suitable for wave or hand soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection | Connected to circuit ground or lower potential node during normal Zener operation |
| Cathode | Reverse breakdown terminal / regulated output node | Provides stable 16 V reference when reverse biased above VZ with current-limiting resistor |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables accurate voltage setting without post-assembly trimming in production-grade references |
| 500 mW total power dissipation | Supports continuous operation in compact through-hole designs without forced cooling |
| 40 W non-repetitive peak power | Allows integration into basic transient voltage suppression paths with minimal external components |
| DO-35 glass package | Provides hermetic sealing and long-term parameter stability under humid or corrosive conditions |
| −65 °C to +200 °C operating range | Meets requirements for under-hood automotive and industrial control module deployments |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 16 V reference for op-amp biasing and ADC voltage scaling in industrial sensor interfaces. IC Role / Device Role / Timing Role: Passive voltage reference node establishing precise analog operating point. Use Value: ±2% VZ tolerance and 50 Ω rdif ensure <10 mV drift across 0–10 mA load variation. |
Use Scenario: Protecting microcontroller I/O pins from 24 V rail transients in factory automation PLC modules. IC Role / Device Role / Timing Role: Two-terminal shunt clamp limiting voltage excursion to ≤16.3 V during surges. Use Value: 40 W PZSM rating absorbs 100 μs spikes up to 1.5 A without degradation. |
| Current Source Bias | Temperature-Stable Reference |
Use Scenario: Setting collector current in discrete transistor amplifiers via constant-voltage emitter bias network. IC Role / Device Role / Timing Role: Fixed-voltage node defining base-emitter voltage drop for current mirror accuracy. Use Value: Low 50 nA IR at 11.2 V prevents loading error in high-impedance bias resistors. |
Use Scenario: Generating temperature-compensated reference in battery management ICs requiring stable 16 V threshold detection. IC Role / Device Role / Timing Role: Primary reference element whose +10.4 mV/K coefficient offsets other component drift. Use Value: Known positive TC enables predictable compensation design without additional thermistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4744A | 14 V nominal, ±5% tolerance, 1 Ω higher rdif, DO-41 package | Lower voltage grade; less precise; larger footprint | Select only if 14 V suffices and board space allows DO-41 lead spacing |
| BZX84-C16 | 16 V nominal, ±5% tolerance, SOT-23 surface-mount package, 250 mW Ptot | No through-hole option; lower power; unsuitable for >125 °C ambient | Choose for automated assembly where size and reflow compatibility outweigh precision needs |
Compared with BZX79-B16,113, the 1N4744A offers lower cost but sacrifices 2 V headroom and ±2% stability, while the BZX84-C16 enables miniaturization at the expense of thermal robustness and voltage accuracy-making the BZX79-B16,113 optimal for precision through-hole reference designs demanding long-term stability.
Availability
BZX79-B16,113 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, and factory automation power supplies requiring stable component supply with guaranteed long-term continuity.
Supply support for BZX79-B16,113 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, specializing in high-volume, high-reliability components for automotive and industrial markets.
The BZX79 series belongs to Nexperia's legacy Zener diode portfolio designed specifically for cost-sensitive, high-stability voltage reference and clamping applications in through-hole manufacturing environments.
FAQ
What is the maximum continuous reverse current for reliable operation?
The BZX79-B16,113 is rated for 5 mA Zener test current, with absolute maximum continuous reverse current limited by power dissipation: at 50 °C ambient, 500 mW allows up to 31.25 mA (16 V × 31.25 mA = 500 mW). Derating is required above 50 °C per Rth j-a = 380 K/W.
Can this diode be used in parallel for higher power handling?
No-Zener diodes exhibit negative dynamic resistance and mismatched temperature coefficients, causing current hogging and thermal runaway when paralleled. For higher power, use a single higher-rated device or active regulation instead.
Is the cathode marking visible on the physical device?
Yes-the cathode is marked by a distinct color band (typically black or dark gray) on the glass envelope near one lead end, consistent with DO-35 industry convention and confirmed in Nexperia's SOD27 package outline documentation.
Does this part meet AEC-Q200 stress testing requirements?
No-BZX79-B16,113 is not AEC-Q200 qualified. It is specified for industrial and general-purpose applications. For automotive under-hood use, Nexperia's Automotive Qualified (AQ) Zener series (e.g., BZX84-AQ variants) must be selected instead.
BZX79-B16,113 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):
- 16 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 200°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ALF2
BZX79-B16,113 FAQ
1.How can I place an order for BZX79-B16,113 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX79-B16,113 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-B16,113 reliable?
The price and inventory of BZX79-B16,113 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX79-B16,113 is usually 5 days.
3.What payment methods are accepted for BZX79-B16,113?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX79-B16,113 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX79-B16,113?
BZX79-B16,113 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX79-B16,113 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-B16,113?
For technical support, including BZX79-B16,113 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX79-B16,113 requirements.
6.How does Aetrix verify that BZX79-B16,113 is sourced from the original manufacturer or authorized distributors?
All BZX79-B16,113 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-B16,113 meets industry standards.
7.What is the process for return or replacement of BZX79-B16,113?
All BZX79-B16,113 units undergo pre-shipment inspection (PSI). If there is an issue with BZX79-B16,113, 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-B16,113 part is unused and in its original packaging.
Return procedure for BZX79-B16,113:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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