My Inquiry
My Account
Nexperia USA Inc. BZV85-C18,113
- Part No.:
- BZV85-C18,113
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZV85-C18,113.pdf
- Description:
- DIODE ZENER 18V 1.3W DO41
- Quantity:
- Payment:
- Shipping:
Inventory:3,029
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZV85-C18,113 from Nexperia is a medium-power Zener voltage regulator diode in a hermetically sealed SOD66 (DO-41) glass package, rated for 18 V nominal working voltage with ±5 % tolerance, 1.3 W total power dissipation at 25 °C ambient, and 60 W non-repetitive peak reverse power handling. It serves as a precision DC voltage reference or shunt regulator in low-to-medium power linear power supplies and overvoltage protection circuits.
For engineers reviewing the BZV85-C18,113 datasheet, BZV85-C18,113 pinout, BZV85-C18,113 application, or BZV85-C18,113 equivalent, this part is selected for stable 18 V regulation under transient surges, thermal performance on PCBs with 1 cm² copper per lead, and compatibility with axial-leaded through-hole assembly processes.
Technical Context
The BZV85-C18,113 operates as a two-terminal shunt regulator, maintaining a stable 18 V across its terminals when reverse-biased above its breakdown threshold. Its differential resistance is 20 Ω at test current, and temperature coefficient is +11.8 mV/K - positive and linear within its operating range, enabling predictable drift compensation in temperature-sensitive references.
Thermal design relies on junction-to-tie-point resistance of 110 K/W (lead length 4 mm) and junction-to-ambient resistance of 175 K/W (lead length 10 mm), requiring PCB copper area management to sustain 1.3 W continuous dissipation without exceeding 200 °C maximum junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 18 V (16.8 V to 19.1 V range at 25 °C; enables precise 18 V rail stabilization) |
| Tolerance | ±5 % (E24 series compliance; supports standard BOM planning without custom binning) |
| Total Power Dissipation | 1.3 W (at Tamb = 25 °C with 10 mm leads; defines max continuous DC load capability) |
| Non-repetitive Peak Reverse Power | 60 W (tp = 100 µs square wave; supports surge suppression in transient-prone inputs) |
| Differential Resistance | 20 Ω (at Itest = 12.5 mA; determines output impedance and regulation sensitivity) |
| Temperature Coefficient | +11.8 mV/K (linear positive drift; allows predictable bias adjustment in temp-compensated designs) |
| Reverse Current @ VR = 15 V | ≤0.05 µA (specifies leakage floor for high-impedance sensing nodes) |
Pinout & Package
Hermetically sealed axial-leaded SOD66 (DO-41) glass package with 2 mm diameter body and 25.4 mm overall length; cathode identified by a single black band on the glass envelope.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated output node; reverse-bias terminal where Zener breakdown occurs |
| 2 (unbanded end) | Anode | Connected to ground or lower-potential reference; completes shunt current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter drift in humid or industrial environments |
| 1.3 W continuous power rating | Supports direct regulation of 70 mA loads at 18 V without external heatsinking |
| 60 W surge capability | Withstands IEC 61000-4-5 Level 3 line transients when used with series impedance |
| ±5 % voltage tolerance | Eliminates need for post-assembly trimming in cost-sensitive consumer and industrial power rails |
| 200 °C max junction temperature | Enables operation in under-hood automotive modules or enclosed industrial enclosures |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
|
Use Scenario: Stabilizing feedback voltage in discrete linear regulators (e.g., LM317-based adjustable supplies). IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 18 V setpoint to error amplifier input. Use Value: Maintains ±1 % output regulation over load currents up to 70 mA with <20 Ω dynamic impedance. |
Use Scenario: Protecting microcontroller I/O pins from 24 V field wiring transients in PLC input modules. IC Role / Device Role / Timing Role: Passive clamp limiting voltage to 18 V during ESD or inductive kick events. Use Value: Absorbs 60 W transient energy (100 µs) without degradation, preventing latch-up or gate oxide damage. |
| Temperature-Compensated Bias | Low-Power Sensor Excitation |
|
Use Scenario: Generating stable bias for thermistor or RTD signal conditioning circuits in HVAC sensors. IC Role / Device Role / Timing Role: Precision voltage source with known +11.8 mV/K drift, matched against sensor TC. Use Value: Enables first-order temperature compensation without active circuitry or lookup tables. |
Use Scenario: Providing excitation voltage to 350 Ω strain gauges in battery-powered handheld test equipment. IC Role / Device Role / Timing Role: Low-noise, low-drift 18 V reference delivering ≤12.5 mA test current. Use Value: Delivers 0.05 µA max leakage at 15 V, preserving measurement accuracy in high-impedance bridge arms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4746A | Same 18 V nominal rating but ±5 % tolerance, 1 W power rating, DO-41 package | Limited to 1 W continuous dissipation; unsuitable for >55 mA sustained loads | Select when board space or legacy BOM mandates industry-standard 1N47xx footprint and lower surge duty applies |
| BZX85C18 | 18 V, ±5 %, 1.3 W, but plastic DO-35 package (not hermetic); higher leakage (≤5 µA @ 15 V) | Lower reliability in humid or high-temperature environments; not suited for extended-life industrial deployments | Select only for cost-driven consumer applications where hermeticity and long-term stability are non-critical |
Compared with 1N4746A and BZX85C18, BZV85-C18,113 delivers superior thermal robustness via hermetic glass packaging, tighter leakage control (0.05 µA), and identical 1.3 W rating with verified 60 W surge margin - making it the preferred choice for industrial-grade power supervision and precision analog references.
Availability
BZV85-C18,113 is available at Aetrix Electronics and suitable for industrial power supplies, PLC input protection circuits, and sensor excitation modules requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for BZV85-C18,113 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 semiconductor expert focused on essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
BZV85-C18,113 belongs to Nexperia's Zener diode portfolio designed specifically for stable, medium-power voltage regulation in harsh-environment applications where hermetic sealing and repeatable surge performance are critical.
FAQ
What is the maximum continuous forward current for BZV85-C18,113?
The device is not intended for continuous forward conduction. Its absolute maximum forward current is 500 mA per IEC 60134 limiting values, but forward operation is limited to brief test conditions. In normal use, it operates in reverse-biased Zener mode only; sustained forward bias risks thermal runaway and parametric shift.
Can BZV85-C18,113 be used in surface-mount designs?
No - BZV85-C18,113 uses an axial-leaded SOD66 (DO-41) glass package designed exclusively for through-hole mounting. It lacks solder pads or terminations compatible with reflow or wave soldering. For SMT equivalents, consider Nexperia's BZX384-B18 or PZM18NB series.
How does the +11.8 mV/K temperature coefficient affect circuit accuracy?
This coefficient means output voltage increases by 11.8 mV per 1 K rise in junction temperature. At 100 °C junction temperature (75 K above 25 °C), regulation shifts +0.885 V - a +4.9 % deviation from nominal 18 V. Compensation requires either thermal derating, matching negative-TC components, or closed-loop correction.
Is the 60 W non-repetitive peak power rating applicable to 10 ms pulses?
No - the 60 W rating applies only to 100 µs square-wave pulses. For 10 ms half-sine pulses, the non-repetitive peak reverse current drops to 0.05 A (per Table 8), limiting peak power to approximately 0.9 W. Exceeding pulse-duration-specific limits risks irreversible junction damage.
BZV85-C18,113 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 18 V
- Tolerance:
- ±5%
- Power - Max:
- 1.3 W
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 12.5 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-C18,113 FAQ
1.How can I place an order for BZV85-C18,113 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV85-C18,113 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 BZV85-C18,113 reliable?
The price and inventory of BZV85-C18,113 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV85-C18,113 is usually 5 days.
3.What payment methods are accepted for BZV85-C18,113?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV85-C18,113 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV85-C18,113?
BZV85-C18,113 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV85-C18,113 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 BZV85-C18,113?
For technical support, including BZV85-C18,113 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV85-C18,113 requirements.
6.How does Aetrix verify that BZV85-C18,113 is sourced from the original manufacturer or authorized distributors?
All BZV85-C18,113 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 BZV85-C18,113 meets industry standards.
7.What is the process for return or replacement of BZV85-C18,113?
All BZV85-C18,113 units undergo pre-shipment inspection (PSI). If there is an issue with BZV85-C18,113, 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 BZV85-C18,113 part is unused and in its original packaging.
Return procedure for BZV85-C18,113:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZV85-C18,113 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…
