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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Nexperia USA Inc. BZV55-C12,135

Name: BZV55-C12,135
Brand: Nexperia USA Inc.
SKU: BZV55-C12,135
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZV55-C12,135

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: DO-213AC, MINI-MELF, SOD-80

Datasheet:: BZV55-C12,135.pdf

Description:: DIODE ZENER 12V 500MW LLDS

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BZV55-C12,135 from Nexperia is a ±5 % tolerance silicon Zener voltage regulator diode in a hermetically sealed SOD80C glass SMD package, rated for 12 V nominal Zener voltage at 5 mA, 500 mW total power dissipation, and 100 nA reverse leakage at 8 V. It serves as a precision low-power reference or clamp in analog signal conditioning, power supply feedback, and overvoltage protection circuits.

For engineers reviewing the BZV55-C12,135 datasheet, BZV55-C12,135 pinout, BZV55-C12,135 application, or BZV55-C12,135 equivalent, this page delivers verified electrical parameters, thermal resistance values, differential resistance (85 Ω typ. at 5 mA), temperature coefficient (+6.0 mV/K), and SOD80C footprint details - all confirmed from Nexperia's Rev. 5 product data sheet.

Technical Context

This Zener diode operates in reverse breakdown to maintain stable voltage under varying current loads, with a typical differential resistance of 85 Ω at I_Z = 5 mA and a positive temperature coefficient of +6.0 mV/K - enabling predictable drift compensation in temperature-sensitive references. Its low 100 nA reverse leakage at V_R = 8 V supports high-impedance bias networks.

Designed for surface-mount assembly on ceramic substrates (10 × 10 × 0.6 mm), it achieves R_th(j-sp) = 300 K/W and R_th(j-a) = 380 K/W in free air, supporting continuous operation up to T_j = 200 °C and non-repetitive surge handling up to 40 W for 100 µs pulses.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	11.4 V to 12.7 V at I_Z = 5 mA - defines regulation band for ±5 % tolerance grade
Differential Resistance (r_dif)	85 Ω typical at I_Z = 5 mA - determines output impedance and load regulation error
Temperature Coefficient (S_Z)	+6.0 mV/K - quantifies voltage drift per degree Celsius rise in junction temperature
Reverse Leakage (I_R)	100 nA max at V_R = 8 V - ensures minimal current draw in high-Z sensing or standby paths
Total Power Dissipation (P_tot)	500 mW at T_amb ≤ 50 °C - sets maximum continuous DC power limit for thermal design
Non-repetitive Peak Power (P_ZSM)	40 W for 100 µs square wave - enables transient overvoltage clamping without failure
Forward Voltage (V_F)	0.9 V max at I_F = 10 mA - relevant for polarity-check or dual-use forward-bias applications

Pinout & Package

Hermetically sealed glass SOD80C package: 3.3–3.7 mm length, 1.45–1.60 mm width, 0.3 mm height; cathode indicated by marking band.

Pin/Terminal	Circuit Role	Design Meaning
1	Cathode	Connected to regulated output node; reverse-biased terminal during Zener operation
2	Anode	Connected to circuit ground or lower-potential rail; completes reverse-bias path

Key Features

Feature	Design Value
±5 % Zener voltage tolerance	Enables cost-effective selection for non-critical reference applications without trimming
Low differential resistance (85 Ω typ.)	Minimizes output voltage variation across 1–10 mA load current changes
Hermetic glass SMD packaging	Ensures long-term stability and moisture resistance in harsh ambient conditions
High surge capability (40 W, 100 µs)	Provides robust transient suppression without external TVS devices in low-energy systems
Wide operating junction temperature (−65 to +200 °C)	Supports deployment in automotive under-hood or industrial high-temp environments

Applications

Power Supply Feedback Reference

Overvoltage Clamp for Microcontroller I/O

Use Scenario: Stabilizing feedback voltage in adjustable linear regulators (e.g., LM317) or switching converter error amplifiers.

IC Role / Device Role / Timing Role: Provides precise 12 V reference point for comparator or op-amp feedback loop.

Use Value: Delivers <1 % regulation error over 1–5 mA current range due to 85 Ω r_dif, reducing output ripple sensitivity.

Use Scenario: Protecting 3.3 V or 5 V GPIO pins from accidental 12 V misconnection or ESD-induced transients.

IC Role / Device Role / Timing Role: Acts as bidirectional clamp - Zener breakdown limits positive excursions; forward conduction blocks negative spikes.

Use Value: Limits pin voltage to ≤12.7 V (max V_Z) while absorbing 40 W surges, eliminating need for discrete TVS in space-constrained designs.

Temperature-Compensated Sensor Bias

Analog Signal Level Shifting

Use Scenario: Generating stable bias current for RTD or thermistor measurement bridges where drift must be minimized.

IC Role / Device Role / Timing Role: Supplies constant-current source via series resistor, leveraging predictable +6.0 mV/K coefficient for intentional compensation.

Use Value: Enables active cancellation of sensor self-heating drift when paired with negative-TC components, improving measurement accuracy over −40 to +125 °C.

Use Scenario: Translating ±10 V industrial sensor outputs to 0–12 V range for ADC input in PLC analog modules.

IC Role / Device Role / Timing Role: Functions as upper-rail clamp to prevent ADC saturation during signal overshoot.

Use Value: Clamps at 12.7 V (max V_Z) with <100 nA leakage, preserving signal integrity in high-impedance (>100 kΩ) source circuits.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener voltage regulation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX55-C12 (ON Semiconductor)	Same 12 V ±5 % rating, but higher r_dif (100 Ω typ.), lower P_ZSM (30 W), and plastic DO-35 package	Lacks hermetic seal; unsuitable for high-humidity or long-life industrial deployments	Select when cost is primary and environmental sealing is not required
MMSZ5242B (Diodes Inc.)	12 V ±5 %, SOD-123 package, r_dif = 95 Ω typ., P_ZSM = 30 W, R_th(j-a) = 500 K/W	Higher thermal resistance reduces usable power derating above 50 °C ambient	Prefer only for low-power, low-temperature PCB layouts with ample copper area

Compared with BZX55-C12 and MMSZ5242B, BZV55-C12,135 offers superior surge robustness (40 W vs. 30 W), lower thermal resistance (380 K/W vs. ≥500 K/W), and hermetic reliability - making it optimal for mission-critical analog references and industrial clamping where long-term parametric stability is mandatory.

Availability

BZV55-C12,135 is available at Aetrix Electronics and suitable for power supply feedback, overvoltage protection, and analog sensor biasing requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for BZV55-C12,135 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 focused on high-volume, high-reliability logic, discrete, and MOSFET solutions, with core expertise in automotive-qualified and industrial-grade components.

The BZV55 series belongs to Nexperia's precision Zener regulator portfolio, engineered specifically for stable voltage referencing and clamping in space-constrained, thermally demanding applications where hermetic integrity and repeatable parametric performance are essential.

FAQ

What is the maximum continuous Zener current for BZV55-C12,135 at 70 °C ambient?

At T_amb = 70 °C, derating applies: P_tot drops linearly from 500 mW at 50 °C to 0 mW at 150 °C. At 70 °C, allowable power is 400 mW. With V_Z ≈ 12 V, maximum continuous I_Z = 400 mW / 12 V ≈ 33 mA - well below the 250 mA absolute max forward current limit.

Can BZV55-C12,135 replace BZV55-B12 in existing designs?

Yes, but with trade-offs: BZV55-B12 offers tighter ±2 % tolerance (11.8–12.2 V) and lower r_dif (50 Ω typ.), while BZV55-C12,135 provides wider tolerance (11.4–12.7 V) and higher surge rating (40 W vs. 30 W). Use C-grade only if regulation accuracy <±4 % is acceptable and enhanced transient immunity is needed.

Is the SOD80C package compatible with standard reflow profiles?

Yes - Nexperia specifies compatibility with JEDEC J-STD-020D reflow profiles. The glass body withstands peak temperatures up to 260 °C for ≤10 s, and the recommended solder land pattern (2.30 × 4.30 mm) is documented in Figure 7 of the datasheet for reliable wetting and mechanical adhesion.

Does BZV55-C12,135 meet automotive AEC-Q200 requirements?

No - the BZV55 series is not AEC-Q200 qualified. Nexperia explicitly states in Section 12.3 that non-automotive qualified products are "neither qualified nor tested in accordance with automotive testing or application requirements." For automotive use, consider Nexperia's AEC-Q200-certified PZU series instead.

BZV55-C12,135 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):: 12 V

Tolerance:: ±5%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 25 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:: Surface Mount

Supplier Device Package:: LLDS; MiniMelf

BZV55-C12,135 FAQ

1.How can I place an order for BZV55-C12,135 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZV55-C12,135 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-C12,135 reliable?

The price and inventory of BZV55-C12,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV55-C12,135 is usually 5 days.

3.What payment methods are accepted for BZV55-C12,135?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV55-C12,135 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZV55-C12,135?

BZV55-C12,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZV55-C12,135 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-C12,135?

For technical support, including BZV55-C12,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV55-C12,135 requirements.

6.How does Aetrix verify that BZV55-C12,135 is sourced from the original manufacturer or authorized distributors?

All BZV55-C12,135 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-C12,135 meets industry standards.

7.What is the process for return or replacement of BZV55-C12,135?

All BZV55-C12,135 units undergo pre-shipment inspection (PSI). If there is an issue with BZV55-C12,135, 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-C12,135 part is unused and in its original packaging.

Return procedure for BZV55-C12,135:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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