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Nexperia USA Inc. BZX79-B22,113
- Part No.:
- BZX79-B22,113
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
BZX79-B22,113.pdf
- Description:
- DIODE ZENER 22V 400MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:8,535
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Product details
Overview
BZX79-B22,113 from Nexperia is a ±2% tolerance Zener voltage regulator diode with nominal 22 V breakdown voltage at 5 mA test current, 60 Ω typical differential resistance, and −14.1 to −17.6 mV/K temperature coefficient. It operates in low-power stabilization circuits requiring stable reference voltages under 500 mW dissipation in SOD27 (DO-35) glass packages.
For engineers reviewing the BZX79-B22,113 datasheet, BZX79-B22,113 pinout, BZX79-B22,113 application, or BZX79-B22,113 equivalent, key selection criteria include Zener voltage tolerance, dynamic impedance, thermal coefficient, surge capability (up to 1.25 A non-repetitive peak reverse current), and hermetic glass package suitability for precision analog references.
Technical Context
This device functions as a two-terminal shunt voltage reference, maintaining regulation by conducting reverse current above its specified Zener voltage. Its operation relies on controlled avalanche breakdown in silicon, with voltage stability governed by junction temperature and test current.
The BZX79-B22,113 exhibits a negative temperature coefficient (−14.1 to −17.6 mV/K), indicating decreasing Zener voltage with rising temperature - a critical factor when used in temperature-sensitive bias networks or compensation circuits where drift must be modeled or canceled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 21.6 V to 22.4 V at IZ = 5 mA - defines precise regulation point for low-noise reference design |
| Differential Resistance (rdiff) | 60 Ω typical at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Temperature Coefficient (SZ) | −14.1 to −17.6 mV/K at IZ = 5 mA - quantifies voltage drift per degree Celsius for thermal error budgeting |
| Power Dissipation (Ptot) | 500 mW at Tamb = 50 °C - sets maximum continuous power handling on standard PCB layout |
| Non-repetitive Peak Reverse Current (IZSM) | 1.25 A for tp = 100 μs - supports transient overvoltage clamping in protection circuits |
| Reverse Current (IR) | 100 nA max at VR = 15.4 V - ensures minimal leakage in high-impedance bias networks |
Pinout & Package
Hermetically sealed axial-leaded SOD27 (DO-35) glass package with cathode band marking; leads are untrimmed, suitable for through-hole mounting and wave soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / reference ground node | Connected to circuit common; establishes reference potential for Zener operation |
| Cathode | Reverse-biased Zener terminal / regulated output node | Connected to supply rail being stabilized; voltage at this node is clamped to VZ |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables tight regulation without post-calibration in precision analog supplies |
| Hermetic glass SOD27 package | Provides long-term parameter stability and moisture resistance for industrial environments |
| 500 mW total power dissipation | Supports robust operation in compact PCB layouts without forced cooling |
| Low 100 nA reverse leakage at 70% VZ | Maintains accuracy in high-impedance feedback paths and battery-powered references |
Applications
| Industrial Sensor Signal Conditioning | Automotive ECU Reference Supply |
|---|---|
Use Scenario: Stabilizing excitation voltage for bridge-based pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 22 V bias to Wheatstone bridge, compensating for supply ripple. Use Value: Maintains sensor output linearity within ±0.1% full-scale error across −40 °C to +125 °C ambient due to known thermal coefficient and low dynamic impedance. | Use Scenario: Generating stable reference for ADC input scaling in engine control unit power management subsystems. IC Role / Device Role / Timing Role: Precision Zener reference for 12-bit analog-to-digital conversion of battery voltage monitoring signals. Use Value: Enables <1 LSB measurement error over automotive temperature range using matched resistor dividers and calibrated thermal drift compensation. |
| Medical Instrumentation Power Rails | Telecom Line Card Voltage Clamp |
Use Scenario: Providing isolated 22 V reference for op-amp biasing in portable ECG front-end amplifiers. IC Role / Device Role / Timing Role: Low-noise shunt regulator establishing clean analog supply rail independent of main DC/DC converter ripple. Use Value: Achieves <15 μVpp output noise and <0.5 ppm/°C long-term drift, meeting IEC 60601-1 signal integrity requirements. | Use Scenario: Clamping transient surges on 24 V telecom backplane power distribution lines. IC Role / Device Role / Timing Role: Secondary overvoltage protector working in coordination with primary TVS diodes during lightning-induced transients. Use Value: Absorbs 1.25 A × 100 μs surges without degradation, extending system-level surge immunity beyond IEC 61000-4-5 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5247B,215 | Surface-mount SOT-23 package; 20 V nominal Zener; ±5% tolerance; 22 Ω rdiff | Designed for space-constrained PCBs; lower power rating (350 mW) | Select when board area is limited and ±5% tolerance is acceptable for cost-sensitive designs |
| BZX84-C22,215 | SOT-23 package; 22 V nominal Zener; ±5% tolerance; 55 Ω rdiff; higher IZSM (2 A) | Optimized for surge-heavy telecom interfaces; lacks hermetic seal | Prefer for high-volume consumer electronics where moisture resistance is secondary to assembly efficiency |
Compared with BZX79-B22,113, MMBZ5247B offers smaller footprint but looser tolerance and lower power handling, while BZX84-C22 provides better surge rating in SMT form but reduced long-term stability due to plastic packaging.
Availability
BZX79-B22,113 is available at Aetrix Electronics and suitable for industrial sensor conditioning, automotive ECU reference supplies, and medical instrumentation power rails requiring stable component supply with guaranteed long-term parametric consistency.
Supply support for BZX79-B22,113 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-reliability diodes, MOSFETs, and logic devices.
The BZX79 series belongs to Nexperia's precision Zener voltage regulator product line, engineered for stable low-power voltage referencing in automotive, industrial, and medical applications where hermetic sealing and tight tolerance are critical.
FAQ
What is the maximum continuous power dissipation for BZX79-B22,113?
The BZX79-B22,113 has a maximum total power dissipation of 500 mW at ambient temperature of 50 °C with standard PCB mounting (no metallization pad, lead length ≤8 mm). At higher ambient temperatures, derating applies per the thermal resistance of 380 K/W junction-to-ambient.
How does the temperature coefficient affect circuit performance?
The BZX79-B22,113 exhibits a negative temperature coefficient of −14.1 to −17.6 mV/K, meaning its Zener voltage decreases by approximately 15.5 mV per °C rise. This must be factored into bias network calculations or compensated using complementary components in precision references.
Can BZX79-B22,113 be used in surface-mount designs?
No - BZX79-B22,113 uses an axial-leaded SOD27 (DO-35) glass package intended for through-hole mounting. For surface-mount alternatives, consider Nexperia's BZX84-C22 (SOT-23) or MMBZ5247B (SOT-23), which offer similar voltage ratings but different tolerances and packaging.
What is the reverse leakage current specification at operating voltage?
At VR = 15.4 V (70% of nominal 22 V), the maximum reverse leakage current is 100 nA. This low leakage ensures minimal loading in high-impedance reference divider networks and preserves accuracy in battery-powered or ultra-low-power applications.
BZX79-B22,113 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):
- 22 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 55 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 15.4 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-B22,113 FAQ
1.How can I place an order for BZX79-B22,113 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX79-B22,113 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-B22,113 reliable?
The price and inventory of BZX79-B22,113 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX79-B22,113 is usually 5 days.
3.What payment methods are accepted for BZX79-B22,113?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX79-B22,113 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX79-B22,113?
BZX79-B22,113 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX79-B22,113 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-B22,113?
For technical support, including BZX79-B22,113 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX79-B22,113 requirements.
6.How does Aetrix verify that BZX79-B22,113 is sourced from the original manufacturer or authorized distributors?
All BZX79-B22,113 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-B22,113 meets industry standards.
7.What is the process for return or replacement of BZX79-B22,113?
All BZX79-B22,113 units undergo pre-shipment inspection (PSI). If there is an issue with BZX79-B22,113, 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-B22,113 part is unused and in its original packaging.
Return procedure for BZX79-B22,113:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX79-B22,113 Tags
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