My Inquiry
My Account
Nexperia USA Inc. BZV85-C20,133
- Part No.:
- BZV85-C20,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZV85-C20,133.pdf
- Description:
- DIODE ZENER 20V 1.3W DO41
- Quantity:
- Payment:
- Shipping:
Inventory:4,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZV85-C20,133 from Nexperia is a medium-power axial-leaded Zener diode in a hermetically sealed SOD66 (DO-41) glass package, rated for 20 V nominal working voltage with ±5 % tolerance, 1.3 W total power dissipation at Ttp = 55 °C, and 60 W non-repetitive peak reverse power handling. It serves as a precision voltage reference or shunt regulator in low-to-medium current DC stabilization circuits, such as power supply feedback paths and overvoltage protection clamps.
For engineers reviewing the BZV85-C20,133 datasheet, BZV85-C20,133 pinout, BZV85-C20,133 application, or BZV85-C20,133 equivalent, this part is selected for stable 20 V regulation under transient surges up to 100 µs, thermal resistance of 110 K/W (junction-to-tie-point), and operation across −65 °C to +200 °C junction temperature range.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified test current of 14.0 mA and differential resistance of 24 Ω at that point. Its temperature coefficient is +13.6 mV/K - positive and linear - enabling predictable drift compensation in temperature-sensitive references.
The device uses a glass-encapsulated axial lead structure with cathode marked by a band, optimized for PCB mounting with ≥1 cm² copper per lead. Thermal performance is defined under two conditions: 175 K/W (junction-to-ambient, 10 mm leads) and 110 K/W (junction-to-tie-point, 4 mm leads).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 20 V (18.8–21.2 V range at 14 mA test current; enables precise 20 V shunt regulation) |
| Power Dissipation | 1.3 W (max at Ttp = 55 °C; defines continuous DC load capability on PCB with thermal relief) |
| Peak Reverse Power | 60 W (non-repetitive, 100 µs square wave; supports surge suppression in transient-prone inputs) |
| Differential Resistance | 24 Ω (at IZ = 14 mA; determines output impedance and regulation stiffness) |
| Temperature Coefficient | +13.6 mV/K (linear positive drift; allows predictable bias adjustment in wide-temp designs) |
| Reverse Current | ≤0.05 µA at VR = 15 V (ensures minimal leakage in high-impedance reference nodes) |
| Forward Voltage | ≤1.0 V at IF = 50 mA (confirms low-loss forward conduction if used bidirectionally) |
Pinout & Package
Hermetically sealed SOD66 (DO-41) axial glass package with 2 leads; cathode identified by a colored band near the lead end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated output node; reverse-biased during Zener operation |
| 2 (unbanded end) | Anode | Connected to ground or lower-potential rail; completes shunt current path |
Key Features
| Feature | Design Value |
|---|---|
| E24 voltage grading | 20 V nominal with ±5 % tolerance ensures interchangeability within standard resistor/Zener families |
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter drift in humid or industrial environments |
| High surge robustness | 60 W non-repetitive peak power rating supports IEC 61000-4-5 level 3/4 surge immunity designs |
| Wide operating temperature | Junction range −65 °C to +200 °C enables use in automotive engine compartments and industrial controls |
| Low thermal resistance | 110 K/W (junction-to-tie-point) allows >1 W dissipation with modest PCB copper area (1 cm²/lead) |
Applications
| Power Supply Feedback Regulation | Overvoltage Clamp Protection |
|---|---|
|
Use Scenario: Stabilizing output voltage in discrete linear regulators or TL431-based feedback loops. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 20 V setpoint for error amplifier comparison. Use Value: Maintains ±1 % output accuracy over line/load variations due to 24 Ω dynamic impedance and low tempco drift. |
Use Scenario: Protecting microcontroller I/O pins or ADC inputs from transient overvoltage events. IC Role / Device Role / Timing Role: Fast-acting clamp limiting voltage to 20 V before damage threshold of downstream silicon. Use Value: Absorbs 60 W for 100 µs without degradation, preventing latch-up or gate oxide rupture in 3.3 V/5 V logic. |
| Reference Voltage Source | Current Source Biasing |
|
Use Scenario: Generating stable bias for op-amp comparators or analog sensor signal conditioning. IC Role / Device Role / Timing Role: Low-noise, low-drift 20 V reference node for precision gain-setting resistors. Use Value: +13.6 mV/K tempco enables matched drift compensation when paired with NTC thermistors or complementary transistors. |
Use Scenario: Setting constant current for LED drivers or laser diode bias circuits. IC Role / Device Role / Timing Role: Zener-based current mirror reference establishing fixed IREF = (VZ − VBE)/R. Use Value: 14 mA test current and 24 Ω rdif ensure <±2 % current stability across 10–100 mA load ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4742A | 20 V nominal, ±5 %, 1.0 W Ptot, DO-41 package, 22 Ω rdif at 25 mA | Lower power rating limits continuous dissipation in high-current clamping; higher test current shifts operating point | Select when board space is constrained and thermal margin >0.3 W is available |
| BZX85C20 | 20 V nominal, ±5 %, 1.3 W Ptot, DO-41, 25 Ω rdif at 5 mA, −65 °C to +175 °C Tj | Narrower junction temperature range reduces suitability for under-hood automotive use | Prefer for cost-sensitive industrial supplies where 200 °C operation is not required |
Compared with 1N4742A and BZX85C20, BZV85-C20,133 offers identical voltage and tolerance but extends junction temperature to +200 °C and improves surge resilience via 60 W peak rating - critical for harsh-environment reliability without derating.
Availability
BZV85-C20,133 is available at Aetrix Electronics and suitable for power supply feedback regulation, overvoltage clamp protection, reference voltage source, and current source biasing requiring stable component supply across automotive, industrial control, and test equipment programs.
Supply support for BZV85-C20,133 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 focused on high-volume, high-reliability essential semiconductors - including logic, discretes, MOSFETs, and bipolar devices - serving automotive, industrial, and consumer markets.
The BZV85 series belongs to Nexperia's precision Zener diode product line, engineered for stable voltage reference and shunt regulation in cost-sensitive, thermally demanding applications where hermetic reliability is mandatory.
FAQ
What is the maximum continuous power dissipation for BZV85-C20,133 under standard PCB conditions?
The maximum continuous power dissipation is 1.3 W when leads are maintained at 55 °C at 4 mm from the body (tie-point condition), per datasheet limiting values Table 5. This assumes ≥1 cm² copper area per lead on FR-4 PCB. At ambient 25 °C with 10 mm leads, the rating drops to 1.0 W due to higher thermal resistance (175 K/W).
How does the +13.6 mV/K temperature coefficient affect circuit design?
The positive temperature coefficient means output voltage increases ~13.6 mV per Kelvin rise in junction temperature. This must be compensated in precision references using negative-coefficient components (e.g., base-emitter junctions) or calibrated out in closed-loop systems. It is stable and linear above 7.5 V, as confirmed in Figure 5 of the datasheet.
Can BZV85-C20,133 be used in bidirectional ESD protection?
No - it is a unidirectional Zener diode optimized for reverse-bias regulation. Its forward voltage is ≤1.0 V at 50 mA, but it lacks symmetric clamping characteristics or specified ESD ratings (e.g., IEC 61000-4-2). For bidirectional protection, purpose-built TVS diodes like PESD5V0S1BA should be used instead.
What is the non-repetitive peak reverse current at 20 V for a 100 µs pulse?
Per Table 8, the non-repetitive peak reverse current (IZSM) for BZV85-C20,133 is 14.0 A at tp = 100 µs (square wave), derived from PZSM = 60 W and VZ ≈ 20 V. This value is validated under Tamb = 25 °C and applies only to single, isolated surges - repeated pulses require derating per thermal time constants in Figure 1.
BZV85-C20,133 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 20 V
- Tolerance:
- ±5%
- Power - Max:
- 1.3 W
- Impedance (Max) (Zzt):
- 24 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 14 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 50 mA
- Operating Temperature:
- -65°C ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-41
BZV85-C20,133 FAQ
1.How can I place an order for BZV85-C20,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV85-C20,133 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 BZV85-C20,133 reliable?
The price and inventory of BZV85-C20,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV85-C20,133 is usually 5 days.
3.What payment methods are accepted for BZV85-C20,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV85-C20,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV85-C20,133?
BZV85-C20,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV85-C20,133 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 BZV85-C20,133?
For technical support, including BZV85-C20,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV85-C20,133 requirements.
6.How does Aetrix verify that BZV85-C20,133 is sourced from the original manufacturer or authorized distributors?
All BZV85-C20,133 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 BZV85-C20,133 meets industry standards.
7.What is the process for return or replacement of BZV85-C20,133?
All BZV85-C20,133 units undergo pre-shipment inspection (PSI). If there is an issue with BZV85-C20,133, 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 BZV85-C20,133 part is unused and in its original packaging.
Return procedure for BZV85-C20,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZV85-C20,133 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…
