My Inquiry
My Account
Nexperia USA Inc. BZX79-B3V3,113
- Part No.:
- BZX79-B3V3,113
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
BZX79-B3V3,113.pdf
- Description:
- DIODE ZENER 3.3V 400MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:7,647
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX79-B3V3,113 from Nexperia is a ±2% tolerance Zener voltage regulator diode in a hermetically sealed SOD27 (DO-35) glass package, rated for 3.3 V nominal Zener voltage at 5 mA test current, 500 mW total power dissipation at 50 °C ambient, and 350 Ω typical differential resistance. It serves as a low-power voltage reference or stabilization element in linear power supplies, sensor biasing circuits, and overvoltage protection clamps.
For engineers reviewing the BZX79-B3V3,113 datasheet, BZX79-B3V3,113 pinout, BZX79-B3V3,113 application, or BZX79-B3V3,113 equivalent, key selection criteria include Zener voltage tolerance (±2%), thermal resistance (380 K/W), reverse leakage (5 μA at VR = 1 V), and non-repetitive surge capability (6.0 A peak reverse current).
Technical Context
This device operates as a two-terminal, silicon planar Zener diode with controlled avalanche breakdown at precisely defined reverse-bias voltages. Its regulation performance is characterized by low dynamic impedance (350 Ω typ. at 5 mA) and a negative temperature coefficient of −2.4 mV/K at IZ = 5 mA, enabling predictable drift behavior across operating temperatures.
The SOD27 axial-leaded glass package provides hermetic sealing and stable long-term parameter retention, while its thermal design supports junction-to-ambient operation up to +200 °C with appropriate PCB layout per IEC 60134 limiting values.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.23 V to 3.37 V at IZ = 5 mA - ensures tight regulation within ±2% tolerance for precision reference use |
| Differential Resistance (rdif) | 350 Ω typical at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Leakage Current (IR) | 5 μA max. at VR = 1 V - defines minimum quiescent current in standby clamp configurations |
| Total Power Dissipation (Ptot) | 500 mW at Tamb = 50 °C - sets maximum continuous DC power handling under standard mounting conditions |
| Non-repetitive Peak Reverse Current (IZSM) | 6.0 A at tp = 100 μs - enables transient overvoltage suppression without device failure |
| Temperature Coefficient (SZ) | −2.4 mV/K at IZ = 5 mA - quantifies voltage drift per degree Celsius for thermal stability analysis |
Pinout & Package
Hermetically sealed axial-leaded glass package per SOD27 (DO-35) outline: 2 mm diameter body, 4.25 mm length, 25.4 mm lead spacing, cathode indicated by black band. Designed for through-hole mounting on standard PCBs without metallization pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection in reverse-bias regulation | Connected to circuit ground or lower potential node when used as shunt regulator |
| Cathode | Zener breakdown terminal / high-side connection in reverse-bias regulation | Connected to input rail or higher potential node; marked with black band on package |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables accurate voltage referencing without post-production trimming in cost-sensitive analog circuits |
| 500 mW power rating at 50 °C ambient | Supports stable DC regulation in compact linear regulators and sensor excitation networks |
| Hermetic SOD27 glass package | Ensures long-term parameter stability and moisture resistance in industrial environments |
| −2.4 mV/K temperature coefficient | Allows predictable compensation in temperature-critical biasing applications |
Applications
| Power Supply Reference | Sensor Biasing |
|---|---|
Use Scenario: Providing stable 3.3 V reference for adjustable linear regulators or op-amp feedback networks in low-power AC/DC adapters. IC Role / Device Role / Timing Role: Shunt voltage reference maintaining regulated output despite input ripple or load variation. Use Value: Delivers ±2% accuracy and <350 Ω dynamic impedance to minimize output deviation under 10–100 mA load steps. | Use Scenario: Biasing resistive temperature detectors (RTDs) or bridge sensors requiring precise excitation voltage. IC Role / Device Role / Timing Role: Low-drift voltage source establishing known current through sensing elements. Use Value: −2.4 mV/K tempco enables predictable offset correction in 0–85 °C industrial sensor modules. |
| Overvoltage Clamp | Signal Level Translation |
Use Scenario: Protecting microcontroller GPIO pins from ESD or inductive kickback in automotive body control units. IC Role / Device Role / Timing Role: Fast-acting shunt limiter clamping transient spikes above 3.3 V threshold. Use Value: 6.0 A non-repetitive surge rating absorbs 100 μs transients without degradation, preserving downstream logic integrity. | Use Scenario: Translating 5 V logic signals to 3.3 V compatible levels in mixed-voltage digital interfaces. IC Role / Device Role / Timing Role: Passive level shifter using forward drop and Zener knee characteristics. Use Value: 0.9 V forward voltage at 10 mA enables clean low-threshold switching while maintaining noise margin in UART/SPI lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5226BS-7-F | 3.3 V ±5%, SOT-23 package, 200 mW Ptot, 250 Ω rdif | Surface-mount only; lower power rating limits use in higher-current references | Select for space-constrained PCBs where reflow compatibility and smaller footprint outweigh power needs |
| 1N4728A | 3.3 V ±5%, DO-41 package, 1 W Ptot, 10 Ω rdif | Larger axial package; tighter regulation not guaranteed due to ±5% tolerance | Select for higher-power clamping where ±5% tolerance is acceptable and thermal mass improves surge resilience |
Compared with BZX79-B3V3,113, MMBZ5226BS-7-F offers SMT compatibility but sacrifices 60% power headroom and tolerance precision, while 1N4728A delivers superior regulation stability at higher current but lacks the ±2% guarantee critical for precision references.
Availability
BZX79-B3V3,113 is available at Aetrix Electronics and suitable for low-voltage stabilizers, sensor biasing networks, and overvoltage protection circuits requiring stable component supply across industrial control, automotive sub-systems, and consumer electronics production.
Supply support for BZX79-B3V3,113 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, logic, and PowerMOS semiconductors, spun off from NXP's Standard Products division in 2017 and focused on automotive, industrial, computing, and consumer markets.
The BZX79 series belongs to Nexperia's legacy Zener diode product line, engineered for reliable low-power voltage regulation and referencing in cost-sensitive, high-volume applications.
FAQ
What is the maximum continuous reverse voltage this diode can regulate at?
The BZX79-B3V3,113 is specified for nominal Zener voltage of 3.23 V to 3.37 V at 5 mA test current. It maintains regulation up to its absolute maximum reverse voltage limit of 75 V, but sustained operation above 3.37 V will exceed its designed regulation range and increase power dissipation beyond safe limits unless current is strictly limited by external series resistance.
Can this diode be used in surface-mount designs?
No - the BZX79-B3V3,113 uses the axial-leaded SOD27 (DO-35) glass package, which is designed exclusively for through-hole mounting. For surface-mount equivalents, consider Nexperia's MMBZ52xxBS series in SOT-23 or PMAZ5xxx series in SOD-123 packages, which offer comparable Zener voltages and tolerances in compatible footprints.
How does temperature affect its Zener voltage stability?
At IZ = 5 mA, the BZX79-B3V3,113 exhibits a temperature coefficient of −2.4 mV/K. This means its Zener voltage decreases by approximately 2.4 mV per degree Celsius rise in junction temperature. For example, a 30 °C rise from 25 °C results in ~72 mV drop - a predictable, linear drift useful for compensated reference designs but requiring thermal management in high-ambient environments.
Is this part RoHS compliant and halogen-free?
Yes - Nexperia confirms RoHS compliance and halogen-free status for the BZX79-B3V3,113 per its product change notification PCN-2017-001 and material declarations published on www.nexperia.com. The SOD27 glass package contains no lead in solderable terminations, and all materials meet EU Directive 2011/65/EU and IEC 61249-2-21 requirements.
BZX79-B3V3,113 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):
- 3.3 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 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-B3V3,113 FAQ
1.How can I place an order for BZX79-B3V3,113 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX79-B3V3,113 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-B3V3,113 reliable?
The price and inventory of BZX79-B3V3,113 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX79-B3V3,113 is usually 5 days.
3.What payment methods are accepted for BZX79-B3V3,113?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX79-B3V3,113 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX79-B3V3,113?
BZX79-B3V3,113 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX79-B3V3,113 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-B3V3,113?
For technical support, including BZX79-B3V3,113 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX79-B3V3,113 requirements.
6.How does Aetrix verify that BZX79-B3V3,113 is sourced from the original manufacturer or authorized distributors?
All BZX79-B3V3,113 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-B3V3,113 meets industry standards.
7.What is the process for return or replacement of BZX79-B3V3,113?
All BZX79-B3V3,113 units undergo pre-shipment inspection (PSI). If there is an issue with BZX79-B3V3,113, 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-B3V3,113 part is unused and in its original packaging.
Return procedure for BZX79-B3V3,113:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX79-B3V3,113 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
