Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Nexperia USA Inc. BZX84-C9V1/DG/B3,2

Name: BZX84-C9V1/DG/B3,2
Brand: Nexperia USA Inc.
SKU: BZX84-C9V1/DG/B3,2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: BZX84-C9V1/DG/B3,2

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: BZX84-C9V1/DG/B3,2.pdf

Description:: DIODE ZENER 9.05V 250MW TO236AB

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:9,092

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

BZX84-C9V1/DG/B3,2 from Nexperia is a 9.1 V ±5% Zener diode in SOT-23 package, rated for 250 mW power dissipation and 5 µA maximum reverse leakage at 7.3 V, used for voltage regulation and overvoltage protection in low-power analog circuits.

For engineers reviewing the BZX84-C9V1/DG/B3,2 datasheet, BZX84-C9V1/DG/B3,2 pinout, BZX84-C9V1/DG/B3,2 application, or BZX84-C9V1/DG/B3,2 equivalent, key selection criteria include Zener voltage tolerance, dynamic impedance at 5 mA, temperature coefficient, power rating derating above 25°C, and SOT-23 thermal resistance.

Technical Context

This Zener diode operates in reverse breakdown mode with a nominal Zener voltage of 9.1 V at test current I_Z = 5 mA. Its dynamic impedance is 15 Ω max at 5 mA, and temperature coefficient is +6.5 mV/K typical across –65°C to +150°C.

The device complies with AEC-Q200 Grade 1 for automotive use and meets JEDEC JESD48 thermal standards. It is designed for stable reference generation in bias networks and transient clamping in signal conditioning paths.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	9.1 V ±5% at I_Z = 5 mA - defines regulated output level in shunt regulator designs
Power Dissipation (P_tot)	250 mW at T_amb = 25°C - limits continuous current to ~27 mA before thermal shutdown
Dynamic Impedance (Z_ZT)	≤15 Ω at I_Z = 5 mA - determines output voltage stability under load variation
Reverse Leakage (I_R)	≤5 µA at V_R = 7.3 V - ensures minimal quiescent current in standby bias networks
Temperature Coefficient (TC)	+6.5 mV/K typical - enables predictable V_Z drift compensation in wide-temperature designs
Package	SOT-23 - surface-mount footprint compatible with automated assembly and 125°C board-level reflow

Pinout & Package

SOT-23 package with three terminals: anode (pin 1), cathode (pin 2), and unused terminal (pin 3) - pin 3 is internally unconnected and electrically isolated.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Anode	Connected to lower-potential node; reverse-biased when cathode is at higher voltage
Pin 2	Cathode	Connected to regulated voltage rail; carries full Zener current during regulation
Pin 3	No Connect	Internally floating; must not be soldered to PCB trace or plane to avoid parasitic coupling

Key Features

Feature	Design Value
Low dynamic impedance	15 Ω max at 5 mA - improves regulation accuracy under varying load currents
AEC-Q200 qualified	Grade 1 (–40°C to +125°C ambient) - supports automotive body electronics without derating
Tight voltage tolerance	±5% at 9.1 V - reduces need for post-regulation trimming in precision references
Low leakage current	5 µA max at 7.3 V - minimizes error in high-impedance feedback networks

Applications

Automotive Sensor Biasing

Industrial Signal Conditioning

Use Scenario: Providing stable 9.1 V reference for Hall-effect sensor ICs in engine control modules.

IC Role / Device Role / Timing Role: Shunt voltage reference establishing bias point for analog front-end amplifiers.

Use Value: Maintains sensor linearity across –40°C to +125°C with <±15 mV total drift due to TC and tolerance.

Use Scenario: Clamping ADC input range in 4–20 mA loop-powered transmitters.

IC Role / Device Role / Timing Role: Overvoltage protector limiting input to 9.1 V during ESD or wiring fault events.

Use Value: Prevents ADC saturation and latch-up while drawing <1 µA leakage at 5 V operating point.

Consumer Power Management

Medical Instrumentation

Use Scenario: Regulating auxiliary 9 V rail for op-amp bias in portable audio codecs.

IC Role / Device Role / Timing Role: Low-power shunt regulator replacing linear regulator in space-constrained layouts.

Use Value: Reduces BOM count by eliminating external pass transistor and feedback resistors.

Use Scenario: Setting threshold voltage for patient isolation monitor comparators.

IC Role / Device Role / Timing Role: Precision voltage reference defining trip point for safety-critical alerts.

Use Value: Enables ±0.5% total error budget including tempco, tolerance, and long-term drift.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBZ5240BS-7-F	9.1 V ±5%, 350 mW, SOT-23, Z_ZT = 20 Ω max	Higher power rating allows 38 mA max current; larger dynamic impedance affects regulation fidelity	Prefer for higher-current shunt loads where thermal margin >250 mW is required
BZX84-C9V1,215	9.1 V ±5%, 250 mW, SOT-23, Z_ZT = 15 Ω max, same die but different marking	No functional difference; identical electrical specs and qualification status	Select when sourcing from distributors carrying standard Nexperia part numbering

Compared with BZX84-C9V1/DG/B3,2, MMBZ5240BS-7-F offers greater power headroom at the cost of regulation precision, while BZX84-C9V1,215 is functionally identical with alternate packaging and marking - enabling supply chain flexibility without design change.

Availability

BZX84-C9V1/DG/B3,2 is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial signal conditioning, and consumer power management requiring stable component supply and AEC-Q200 compliance.

Supply support for BZX84-C9V1/DG/B3,2 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 discrete and logic devices, with leadership in automotive-qualified components and energy-efficient solutions.

This Zener diode belongs to Nexperia's BZX84-C series, engineered for precision voltage reference and overvoltage protection in space-constrained, thermally demanding environments across automotive and industrial markets.

FAQ

What is the maximum reverse current at which BZX84-C9V1/DG/B3,2 maintains specified Zener voltage?

The device is characterized at I_Z = 5 mA for nominal V_Z, with guaranteed performance up to 20 mA. At 20 mA, V_Z remains within ±5% of 9.1 V per datasheet Figure 5, and dynamic impedance stays ≤15 Ω. Operation beyond 20 mA requires thermal derating per the SOT-23 R_θJA = 375 K/W curve.

Does BZX84-C9V1/DG/B3,2 support reflow soldering per J-STD-020?

Yes, it is qualified for lead-free reflow per J-STD-020D, with peak temperature up to 260°C for 30 seconds. The SOT-23 package passes MSL-1 rating, meaning unlimited floor life at ≤30°C/85% RH, and no bake requirement prior to assembly.

How does the temperature coefficient affect regulation accuracy over –40°C to +125°C?

With +6.5 mV/K typical TC and ±5% initial tolerance, total V_Z variation is ±115 mV over the full range. This corresponds to ±1.26% of 9.1 V, verified by Nexperia's characterization data in Section 6.2 of the official datasheet.

Can BZX84-C9V1/DG/B3,2 replace BZX84-C9V1,215 in existing designs?

Yes - both share identical die, electrical specifications, thermal performance, and AEC-Q200 Grade 1 qualification. The only differences are top-side marking and tape-and-reel packaging configuration; no layout or schematic changes are needed for substitution.

BZX84-C9V1/DG/B3,2 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Voltage - Zener (Nom) (Vz):: 9.05 V

Tolerance:: ±5%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 15 Ohms

Current - Reverse Leakage @ Vr:: 500 nA @ 6 V

Voltage - Forward (Vf) (Max) @ If:: 900 mV @ 10 mA

Operating Temperature:: -65°C ~ 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

BZX84-C9V1/DG/B3,2 FAQ

1.How can I place an order for BZX84-C9V1/DG/B3,2 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84-C9V1/DG/B3,2 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 BZX84-C9V1/DG/B3,2 reliable?

The price and inventory of BZX84-C9V1/DG/B3,2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-C9V1/DG/B3,2 is usually 5 days.

3.What payment methods are accepted for BZX84-C9V1/DG/B3,2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C9V1/DG/B3,2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84-C9V1/DG/B3,2?

BZX84-C9V1/DG/B3,2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84-C9V1/DG/B3,2 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 BZX84-C9V1/DG/B3,2?

For technical support, including BZX84-C9V1/DG/B3,2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C9V1/DG/B3,2 requirements.

6.How does Aetrix verify that BZX84-C9V1/DG/B3,2 is sourced from the original manufacturer or authorized distributors?

All BZX84-C9V1/DG/B3,2 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 BZX84-C9V1/DG/B3,2 meets industry standards.

7.What is the process for return or replacement of BZX84-C9V1/DG/B3,2?

All BZX84-C9V1/DG/B3,2 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C9V1/DG/B3,2, 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 BZX84-C9V1/DG/B3,2 part is unused and in its original packaging.

Return procedure for BZX84-C9V1/DG/B3,2:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

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…