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Nexperia USA Inc. BZX79-B11,113
- Part No.:
- BZX79-B11,113
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
BZX79-B11,113.pdf
- Description:
- DIODE ZENER 11V 400MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:8,500
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Product details
Overview
BZX79-B11,113 from Nexperia is a ±2% tolerance Zener voltage regulator diode with nominal 11 V breakdown voltage at 5 mA test current, 50 Ω typical differential resistance, and 5.4 mV/K temperature coefficient. It operates in hermetically sealed SOD27 (DO-35) glass package, dissipating up to 500 mW at 50 °C ambient, and serves as a precision low-power voltage reference in analog sensor biasing and power supply feedback networks.
For engineers reviewing the BZX79-B11,113 datasheet, BZX79-B11,113 pinout, BZX79-B11,113 application, or BZX79-B11,113 equivalent, key selection criteria include Zener voltage tolerance (±2%), thermal coefficient (5.4 mV/K), differential resistance (50 Ω), reverse leakage (100 nA at 8 V), and DO-35 package compatibility with through-hole PCB assembly.
Technical Context
This Zener diode functions as a two-terminal shunt voltage regulator, maintaining stable output voltage across variable load currents by operating in reverse breakdown. Its 11 V nominal Zener voltage is specified at IZtest = 5 mA, with tight ±2% tolerance ensuring predictable regulation in precision analog circuits.
The device exhibits a positive temperature coefficient of +5.4 mV/K at 5 mA, indicating voltage increases linearly with junction temperature - critical for thermal drift compensation in voltage references. Its 50 Ω typical differential resistance defines dynamic impedance under small-signal AC conditions, directly impacting regulation stability under varying load transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.80 V to 11.20 V at IZ = 5 mA - ensures ±2% regulation accuracy in feedback loops |
| Differential Resistance (rdif) | 50 Ω typical at IZ = 5 mA - determines small-signal voltage variation under load changes |
| Temperature Coefficient (SZ) | +5.4 mV/K at IZ = 5 mA - quantifies thermal drift for reference stability over temperature |
| Reverse Leakage (IR) | 100 nA max at VR = 8 V - minimizes parasitic current in high-impedance bias networks |
| Total Power Dissipation (Ptot) | 500 mW at Tamb = 50 °C - sets maximum continuous DC power handling on standard PCB |
| Package | SOD27 (DO-35) - axial-leaded hermetic glass package enabling reliable through-hole mounting |
| Non-repetitive Peak Power (PZSM) | 40 W at tp = 100 μs - supports transient surge suppression in low-energy protection circuits |
Pinout & Package
Hermetically sealed SOD27 (DO-35) glass package with axial leads; cathode identified by a single black band on the glass body. Leads are tinned copper-clad steel, suitable for wave or hand soldering per J-STD-001.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-voltage reference node | Connected to circuit ground or lower-potential rail during Zener operation |
| Cathode | Reverse breakdown terminal / regulated output node | Marked with black band; connects to input voltage source and load in shunt configuration |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables precise voltage setting without post-production trimming in analog references |
| 500 mW total power dissipation | Supports continuous regulation in low-power supplies without heatsinking |
| Hermetic SOD27 glass package | Provides long-term reliability and moisture resistance in industrial environments |
| 100 nA max reverse leakage at 8 V | Minimizes error current in high-impedance op-amp reference inputs |
| +5.4 mV/K temperature coefficient | Allows predictable thermal compensation when paired with negative-coefficient components |
Applications
| Industrial Sensor Signal Conditioning | Low-Power Voltage Reference |
|---|---|
Use Scenario: Biasing bridge sensors (e.g., strain gauges) in PLC analog input modules. IC Role / Device Role / Timing Role: Zener diode provides stable 11 V reference for excitation and ADC reference scaling. Use Value: ±2% tolerance and low 100 nA leakage ensure <0.5% full-scale error in 12-bit measurement systems. | Use Scenario: Generating fixed reference for comparator thresholds in battery monitoring ICs. IC Role / Device Role / Timing Role: Shunt regulator establishes accurate trip point independent of supply rail variation. Use Value: 50 Ω differential resistance limits threshold shift to <50 mV over 1 mA load current change. |
| Linear Regulator Feedback Network | Overvoltage Protection Clamp |
Use Scenario: Setting output voltage in adjustable LDO feedback divider (e.g., TLV707 + external resistors). IC Role / Device Role / Timing Role: Precision Zener replaces internal bandgap reference to extend output range beyond IC limits. Use Value: +5.4 mV/K TC enables matched thermal tracking with silicon-based error amplifiers. | Use Scenario: Clamping microcontroller I/O pins against ESD-induced transients in automotive body control modules. IC Role / Device Role / Timing Role: Fast-acting shunt clamp diverts surge energy before IC damage occurs. Use Value: 40 W non-repetitive peak power rating absorbs 100 μs surges without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5240B,115 | Same 11 V Zener voltage but SOT-23 surface-mount package; 100 mW Ptot; higher rdif (200 Ω) | Requires PCB redesign for SMT assembly; unsuitable for high-power dissipation scenarios | Select when board space is constrained and power demand ≤100 mW |
| 1N4740A | 10% tolerance (not ±2%); 1 W Ptot; 20 Ω rdif; DO-41 package (larger than DO-35) | Lower precision but higher surge capability; requires larger footprint | Select when cost sensitivity outweighs voltage accuracy and board area is available |
Compared with MMBZ5240B,115 and 1N4740A, BZX79-B11,113 uniquely balances ±2% tolerance, 500 mW power handling, and DO-35 form factor - making it optimal for through-hole precision references where thermal stability and legacy compatibility matter.
Availability
BZX79-B11,113 is available at Aetrix Electronics and suitable for industrial sensor conditioning, low-power voltage reference design, and linear regulator feedback networks requiring stable component supply across multi-year production cycles.
Supply support for BZX79-B11,113 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 focus on automotive, industrial, and computing applications.
The BZX79 series belongs to Nexperia's precision Zener diode product line, engineered specifically for low-power voltage regulation and referencing in cost-sensitive, high-reliability through-hole designs.
FAQ
What is the maximum continuous forward current for BZX79-B11,113?
The absolute maximum continuous forward current is 250 mA at Tamb ≤ 50 °C, per the limiting values table. This rating assumes no simultaneous reverse-bias operation and accounts for thermal derating above ambient temperature. Exceeding this value risks metallization failure or bond wire lift-off.
How does the temperature coefficient affect regulation accuracy over −40 °C to +125 °C?
With a +5.4 mV/K coefficient at 5 mA, the Zener voltage shifts approximately +890 mV across a 165 K range. Actual drift is non-linear and mitigated by operating at higher test currents (e.g., 20 mA), where coefficient decreases to ~+3.5 mV/K per Fig.6, reducing total drift to ~580 mV.
Can BZX79-B11,113 be used in parallel for higher power handling?
No - Zener diodes exhibit manufacturing spread in VZ, causing current hogging in parallel configurations. Even matched units show >50 mV unit-to-unit variation, leading to thermal runaway. For higher power, use a single higher-rated device like BZX85C11 or add an external series pass transistor.
Is the SOD27 package RoHS-compliant and lead-free?
Yes - all current-production BZX79-B11,113 devices meet RoHS Directive 2011/65/EU and are lead-free, with SnAgCu solderable terminations. The glass body contains no restricted substances, and the lead finish complies with JEDEC J-STD-609 Class 3 marking requirements.
BZX79-B11,113 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):
- 11 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 20 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-B11,113 FAQ
1.How can I place an order for BZX79-B11,113 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX79-B11,113 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-B11,113 reliable?
The price and inventory of BZX79-B11,113 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX79-B11,113 is usually 5 days.
3.What payment methods are accepted for BZX79-B11,113?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX79-B11,113 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX79-B11,113?
BZX79-B11,113 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX79-B11,113 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-B11,113?
For technical support, including BZX79-B11,113 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX79-B11,113 requirements.
6.How does Aetrix verify that BZX79-B11,113 is sourced from the original manufacturer or authorized distributors?
All BZX79-B11,113 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-B11,113 meets industry standards.
7.What is the process for return or replacement of BZX79-B11,113?
All BZX79-B11,113 units undergo pre-shipment inspection (PSI). If there is an issue with BZX79-B11,113, 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-B11,113 part is unused and in its original packaging.
Return procedure for BZX79-B11,113:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX79-B11,113 Tags
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