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

Nexperia USA Inc. BZX884-B33,315

Name: BZX884-B33,315
Brand: Nexperia USA Inc.
SKU: BZX884-B33,315
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX884-B33,315

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: SOD-882

Datasheet:: BZX884-B33,315.pdf

Description:: DIODE ZENER 33V 250MW DFN1006-2

Quantity:: RFQ Add To RFQ list

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Inventory:1,110

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Product details

Overview

BZX884-B33,315 from Nexperia is a ±2% tolerance Zener diode in SOD882 (DFN1006-2) package, rated for 33 V nominal Zener voltage at I_Z = 5 mA, 250 mW total power dissipation, and AEC-Q101 qualified for automotive-grade regulation and ESD protection in compact DC power rails.

For engineers reviewing the BZX884-B33,315 datasheet, BZX884-B33,315 pinout, BZX884-B33,315 application, or BZX884-B33,315 equivalent, this device serves as a precision voltage reference and transient clamp in space-constrained, high-reliability analog and power management circuits.

Technical Context

This Zener diode operates in reverse breakdown to maintain stable 33 V regulation across load and line variations, with typical differential resistance of 75 Ω at I_Z = 2 mA and temperature coefficient of +29.7 mV/K at I_Z = 2 mA - indicating positive drift above 6 V nominal range.

It supports ultra-fast ESD clamping via low junction capacitance (45 pF at f = 1 MHz, V_R = 0 V) and withstands non-repetitive peak reverse current up to 0.9 A (t_p = 100 µs), making it suitable for I/O line protection in high-frequency digital interfaces.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	32.34 V to 33.66 V at I_Z = 5 mA - defines tight ±2% regulation window for precision biasing
Power Dissipation (P_tot)	250 mW at T_amb ≤ 25 °C - sets maximum continuous thermal load on FR4 PCB with standard footprint
Differential Resistance (r_diff)	75 Ω max at I_Ztest = 2 mA - determines output impedance and regulation sensitivity to current changes
Junction Capacitance (C_d)	45 pF at f = 1 MHz, V_R = 0 V - enables effective high-frequency noise suppression and ESD response
Forward Voltage (V_F)	0.9 V max at I_F = 10 mA - ensures low conduction loss when used in forward-biased protection paths
Reverse Current (I_R)	50 nA max at V_R = 23.1 V (0.7 × V_Znom) - guarantees minimal leakage in standby regulation mode
Non-repetitive Peak Current (I_ZSM)	0.9 A at t_p = 100 µs - supports single-event ESD immunity per IEC 61000-4-2 Level 4

Pinout & Package

SOD882 (DFN1006-2) is a leadless ultra-small surface-mount plastic package measuring 1.0 × 0.6 × 0.5 mm, with exposed copper terminals and cathode marked by a bar on the top surface.

Pin/Terminal	Circuit Role	Design Meaning
1 (K)	Cathode	Connected to regulated output node; polarity marker aligns with PCB silkscreen bar for automated assembly verification
2 (A)	Anode	Connected to ground or lower-potential rail; forms reverse-biased junction enabling Zener breakdown conduction

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive underhood and infotainment applications requiring extended temperature operation (−55 °C to +150 °C)
±2% Zener voltage tolerance	Enables tighter regulation margins than ±5% variants, reducing need for post-regulation trimming in feedback loops
Ultra-small DFN1006-2 footprint	Reduces PCB area by >60% vs. SOD-123, supporting miniaturized power management in wearables and sensor nodes
Low thermal resistance (R_th(j-a))	500 K/W in free air - allows direct thermal coupling to copper pour without heatsink for <150 mW steady-state loads
ESD ultra-high-speed switching	Sub-nanosecond turn-on enables clamping of fast transients (e.g., HBM >8 kV) before downstream IC damage occurs

Applications

Automotive Body Control Module (BCM) Voltage Reference

Industrial Sensor Signal Conditioning

Use Scenario: Stable 33 V reference for ADC biasing and op-amp supply in BCM microcontroller peripherals.

IC Role / Device Role / Timing Role: Precision Zener regulator providing low-drift reference voltage independent of battery fluctuations.

Use Value: Maintains ±0.66 V regulation window over temperature (−40 °C to +125 °C), ensuring consistent 12-bit ADC accuracy.

Use Scenario: Clamp and regulate 3.3 V/5 V I/O lines in MEMS pressure sensor interface circuitry.

IC Role / Device Role / Timing Role: Dual-role device acting as both voltage limiter and ESD protector on SPI/UART lines.

Use Value: 45 pF capacitance avoids signal integrity degradation at 10 MHz SPI clock rates while absorbing 0.9 A ESD pulses.

Consumer Wearable Power Rail Stabilization

Telecom Base Station Bias Supply

Use Scenario: Low-power 33 V stabilization for OLED display driver ICs in smartwatch mainboard.

IC Role / Device Role / Timing Role: Compact shunt regulator maintaining constant voltage during pulsed display backlight current draw.

Use Value: 250 mW rating supports 7.6 mA average current draw with 50 °C/W board-level thermal margin at 60 °C ambient.

Use Scenario: Overvoltage protection and bias point setting for RF power amplifier bias networks.

IC Role / Device Role / Timing Role: Zener clamp preventing gate oxide damage during RF burst transmission transients.

Use Value: +29.7 mV/K tempco compensates for PA gain drift, improving gain flatness across −30 °C to +70 °C operating range.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX884-C33,315	±5% tolerance (31.35–34.65 V), higher r_diff (80 Ω max), same package and P_tot	Acceptable where system tolerances allow ±1.3 V variation; less suitable for precision feedback loops	Select for cost-sensitive industrial controls where absolute voltage accuracy is secondary to reliability
MMSZ4702T1G	33 V ±5%, SOD-123 package (2.7 × 1.6 mm), 500 mW rating, no AEC-Q101 qualification	Larger footprint limits use in ultra-dense layouts; higher power enables higher surge handling but requires more board area	Choose when legacy SOD-123 compatibility or higher continuous power is required, and automotive qualification is not mandated

Compared with BZX884-C33,315, the BZX884-B33,315 offers tighter voltage control critical for closed-loop systems; versus MMSZ4702T1G, it delivers 40% smaller footprint and automotive qualification at the expense of 50% lower power rating - prioritizing miniaturization and automotive compliance over raw surge capacity.

Availability

BZX884-B33,315 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, wearable power management, and telecom bias supply applications requiring stable component supply and AEC-Q101 assurance.

Supply support for BZX884-B33,315 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, logic, and MOSFET solutions for automotive, industrial, and consumer markets.

The BZX884 series belongs to Nexperia's general-purpose Zener diode product line, engineered for compact, high-reliability voltage regulation and ESD protection in space-constrained, thermally demanding environments.

FAQ

What is the maximum continuous reverse current the BZX884-B33,315 can handle at 25 °C ambient?

The device does not specify a maximum continuous reverse current; instead, its regulation behavior is defined by Zener test current (I_Z = 5 mA) and power limit. At 33 V, sustained operation above ~7.6 mA (250 mW / 33 V) risks exceeding P_tot, triggering thermal runaway unless board-level cooling is enhanced.

Can the BZX884-B33,315 be used in parallel for higher power dissipation?

No - Zener diodes exhibit negative temperature coefficients below ~6 V and positive above, causing current hogging in parallel configurations. Even within the same batch, minor V_Z mismatches (±2%) lead to unequal current sharing and potential thermal failure of the lower-voltage unit.

Is the SOD882 package compatible with standard reflow soldering profiles?

Yes - Nexperia specifies reflow soldering as the only recommended method, with JEDEC J-STD-020-compliant peak temperatures up to 260 °C. The footprint in Figure 12 (0.6 mm pad width, 0.7 mm length, 0.9 mm center-to-center spacing) ensures reliable wetting and coplanarity on FR4 boards.

How does the +29.7 mV/K temperature coefficient affect long-term voltage stability?

This positive coefficient means V_Z increases ~0.98 V over a 33 °C rise (e.g., from 25 °C to 58 °C). In closed-loop systems, this drift must be compensated in feedback design; however, it improves thermal tracking when paired with similarly drifting components like bipolar bias networks.

BZX884-B33,315 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: SOD-882

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 33 V

Tolerance:: ±2%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 80 Ohms

Current - Reverse Leakage @ Vr:: 50 nA @ 23.1 V

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

Operating Temperature:: -65°C ~ 150°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: DFN1006-2

BZX884-B33,315 FAQ

1.How can I place an order for BZX884-B33,315 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX884-B33,315 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 BZX884-B33,315 reliable?

The price and inventory of BZX884-B33,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX884-B33,315 is usually 5 days.

3.What payment methods are accepted for BZX884-B33,315?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884-B33,315 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX884-B33,315?

BZX884-B33,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX884-B33,315 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 BZX884-B33,315?

For technical support, including BZX884-B33,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884-B33,315 requirements.

6.How does Aetrix verify that BZX884-B33,315 is sourced from the original manufacturer or authorized distributors?

All BZX884-B33,315 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 BZX884-B33,315 meets industry standards.

7.What is the process for return or replacement of BZX884-B33,315?

All BZX884-B33,315 units undergo pre-shipment inspection (PSI). If there is an issue with BZX884-B33,315, 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 BZX884-B33,315 part is unused and in its original packaging.

Return procedure for BZX884-B33,315:

1.Submit a request within 90 days.

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

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