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Nexperia USA Inc. BZV55-B20,135
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- Part No.:
- BZV55-B20,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-213AC, MINI-MELF, SOD-80
- Datasheet:
-
BZV55-B20,135.pdf
- Description:
- DIODE ZENER 20V 500MW LLDS
- Quantity:
- Payment:
- Shipping:
Inventory:19,553
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Product details
Overview
BZV55-B20,135 from Nexperia is a 20 V ±2 % tolerance Zener voltage regulator diode in a hermetically sealed SOD80C glass SMD package, rated for 500 mW total power dissipation and 40 W non-repetitive peak reverse power, used for precision low-power voltage reference and regulation in analog signal conditioning circuits.
For engineers reviewing the BZV55-B20,135 datasheet, BZV55-B20,135 pinout, BZV55-B20,135 application, or BZV55-B20,135 equivalent, key selection criteria include nominal Zener voltage (19.6–20.4 V), differential resistance (60–225 Ω at IZ = 5 mA), temperature coefficient (12.3–18.0 mV/K), and thermal resistance (300 K/W junction-to-solder-point).
Technical Context
This Zener diode operates in reverse breakdown to maintain stable DC voltage under varying load and supply conditions. Its low differential resistance (60–225 Ω) ensures minimal output voltage variation with current changes, while its ±2 % tolerance enables tight regulation without post-production trimming.
The device features a negative temperature coefficient (12.3–18.0 mV/K) that compensates for ambient drift in bias networks, and its 300 K/W junction-to-solder-point thermal resistance supports reliable operation on standard FR-4 PCBs with moderate copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 19.6 V to 20.4 V at IZ = 5 mA - defines precise regulation point for feedback or reference nodes |
| Tolerance | ±2 % - enables high-accuracy voltage setting without external calibration |
| Differential Resistance (rdif) | 60 Ω (typ) to 225 Ω (max) at IZ = 5 mA - determines load regulation error sensitivity |
| Total Power Dissipation (Ptot) | 500 mW at Ttp ≤ 50 °C - sets maximum continuous DC power handling on standard PCB |
| Non-repetitive Peak Power (PZSM) | 40 W for 100 µs square wave - supports transient overvoltage clamping in protection circuits |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - confirms low-loss forward conduction during polarity reversal or ESD events |
| Thermal Resistance (Rth(j-sp)) | 300 K/W - quantifies junction-to-solder-point heat transfer efficiency for thermal design |
Pinout & Package
Hermetically sealed glass SOD80C surface-mount package (3.3–3.7 mm length × 1.45–1.60 mm width × 0.3 mm height), with cathode indicated by a marking band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode | Connected to ground or lower-potential rail; completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic Glass SMD Package | SOD80C provides moisture resistance and long-term parameter stability in humid environments |
| Low Differential Resistance | 60 Ω typical at 5 mA enables <10 mV output shift per 1 mA load change in reference designs |
| ±2 % Voltage Tolerance | Eliminates need for external trimming in mid-precision analog power supplies and sensor biasing |
| 40 W Non-repetitive Surge Rating | Supports transient suppression in low-energy interface protection without external TVS stacking |
Applications
| Power Supply Reference | Overvoltage Protection |
|---|---|
Use Scenario: Providing stable 20 V reference for op-amp biasing and ADC voltage references in industrial sensor modules. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp reference node voltage. Use Value: Delivers ±2 % accuracy and <200 mV load regulation error across 1–10 mA current range. | Use Scenario: Clamping induced transients on 24 V DC input rails of programmable logic controllers. IC Role / Device Role / Timing Role: Standalone shunt protector absorbing 100 µs surges up to 40 W. Use Value: Limits rail voltage to ≤22 V during surge, preventing damage to downstream regulators and microcontrollers. |
| Signal Level Shifting | Current Source Biasing |
Use Scenario: Establishing fixed 20 V offset for bipolar signal conditioning in audio preamplifier stages. IC Role / Device Role / Timing Role: Reverse-biased Zener defining DC bias point for AC-coupled amplifier inputs. Use Value: Maintains <±5 mV drift over −40 °C to +85 °C due to predictable temperature coefficient. | Use Scenario: Setting gate voltage for constant-current LED driver MOSFETs in display backlight circuits. IC Role / Device Role / Timing Role: Zener-regulated voltage source controlling MOSFET VGS to fix drain current. Use Value: Enables ±3 % current accuracy across production batches without laser trimming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C20,113 | ±5 % tolerance, higher differential resistance (150–300 Ω), same SOD80C package | Lower cost for non-critical biasing where ±5 % voltage accuracy is acceptable | Select when budget constraints outweigh precision requirements and thermal margin allows higher rdif |
| MMSZ5248B-7-F | ±5 % tolerance, SOD-123 package, 500 mW rating, 100 Ω typical rdif | Higher board density possible but requires re-layout due to different footprint and solder thermal profile | Choose only if SOD-123 is standardized in design and ±5 % regulation suffices |
Compared with BZV55-B20,135, the BZX55C20,113 trades voltage accuracy for cost, while MMSZ5248B-7-F offers similar power handling in a smaller footprint but sacrifices tolerance and thermal performance-making the BZV55-B20,135 optimal for stable, precision-limited analog reference use cases.
Availability
BZV55-B20,135 is available at Aetrix Electronics and suitable for industrial sensor biasing, analog reference generation, and low-energy overvoltage protection requiring stable component supply and traceable sourcing.
Supply support for BZV55-B20,135 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 semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer applications.
The BZV55 series belongs to Nexperia's precision Zener diode product line, engineered for stable low-power voltage regulation and reference functions in space-constrained SMD designs.
FAQ
What is the maximum continuous reverse current for BZV55-B20,135 at 25 °C?
The maximum continuous reverse current is derived from the 500 mW power rating and 20 V Zener voltage, yielding 25 mA (500 mW ÷ 20 V). This assumes ambient temperature ≤50 °C and adequate PCB copper area for thermal dissipation; derating applies above that temperature.
Can BZV55-B20,135 be used in place of a 20 V Zener with ±5 % tolerance?
Yes, but only where tighter regulation improves system performance. Its ±2 % tolerance reduces worst-case voltage spread from ±1.0 V (±5 %) to ±0.4 V (±2 %), lowering error in feedback loops and reference-dependent measurements without circuit modification.
How does the temperature coefficient affect regulation accuracy over −40 °C to +125 °C?
With a typical temperature coefficient of +15.6 mV/K, the Zener voltage shifts approximately +2.5 V over that 165 K range. For applications requiring <1 % drift, active compensation or temperature-limited operation is necessary-this part is not intended for wide-temperature precision references.
Is the SOD80C package compatible with standard reflow profiles for lead-free assembly?
Yes-the SOD80C package is qualified for lead-free reflow per J-STD-020. The recommended peak temperature is 260 °C for ≤10 seconds, with ramp rates and soak profiles matching IPC-J-STD-020 Class 3 guidelines; no special thermal relief is required beyond standard pad layout.
BZV55-B20,135 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- DO-213AC, MINI-MELF, SOD-80
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 20 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 55 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 14 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LLDS; MiniMelf
BZV55-B20,135 FAQ
1.How can I place an order for BZV55-B20,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV55-B20,135 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 BZV55-B20,135 reliable?
The price and inventory of BZV55-B20,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV55-B20,135 is usually 5 days.
3.What payment methods are accepted for BZV55-B20,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV55-B20,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV55-B20,135?
BZV55-B20,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV55-B20,135 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 BZV55-B20,135?
For technical support, including BZV55-B20,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV55-B20,135 requirements.
6.How does Aetrix verify that BZV55-B20,135 is sourced from the original manufacturer or authorized distributors?
All BZV55-B20,135 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 BZV55-B20,135 meets industry standards.
7.What is the process for return or replacement of BZV55-B20,135?
All BZV55-B20,135 units undergo pre-shipment inspection (PSI). If there is an issue with BZV55-B20,135, 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 BZV55-B20,135 part is unused and in its original packaging.
Return procedure for BZV55-B20,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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