My Inquiry
My Account
Diodes Incorporated D3Z8V2BF-7
- Part No.:
- D3Z8V2BF-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
D3Z8V2BF-7.pdf
- Description:
- DIODE ZENER 8.19V 400MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:2,186
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
D3Z8V2BF-7 from Diodes Incorporated is a 0.4W surface-mount precision Zener diode with nominal zener voltage 8.2V (min 8.02V, max 8.36V at 5mA), ±2.5% tolerance, 10Ω dynamic impedance at 5mA, and 4.6mV/°C temperature coefficient. It operates from −65°C to +150°C and is used for voltage regulation and reference in low-power analog circuits, power supply feedback loops, and overvoltage protection.
For engineers reviewing the D3Z8V2BF-7 datasheet, D3Z8V2BF-7 pinout, D3Z8V2BF-7 application, or D3Z8V2BF-7 equivalent, this page delivers verified electrical specs, SOD323F package details, thermal derating behavior, cathode-band polarity confirmation, and direct alternatives for precision voltage reference design.
Technical Context
This Zener diode functions as a two-terminal voltage reference device, operating in reverse breakdown mode with tightly controlled VZ and low dynamic impedance. Its 10Ω ZZT at 5mA and 60Ω ZZK at 0.5mA ensure stable regulation across load and line variations.
The device exhibits a negative temperature coefficient of −4.6mV/°C, enabling predictable drift compensation in temperature-sensitive references. Its 400mW power rating on FR-4 PCB and 312.5°C/W junction-to-ambient thermal resistance define safe operating limits under ambient conditions up to +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.02–8.36 V at IZT = 5 mA - defines regulated output range under standard test current |
| Zener Impedance (ZZT) | 10 Ω at f = 1 kHz, IZT = 5 mA - ensures minimal output voltage variation with load current changes |
| Power Dissipation (PD) | 400 mW on FR-4 PCB - sets maximum continuous DC power handling under defined board layout |
| Temperature Coefficient | −4.6 mV/°C - quantifies voltage drift per degree Celsius, critical for thermal stability in reference designs |
| Reverse Current (IR) | 0.5 μA at VR = 6.56 V - confirms low leakage below breakdown, preserving accuracy in high-impedance bias networks |
| Total Capacitance | 57 pF at VR = 0 V, f = 1 MHz - impacts high-frequency noise rejection and transient response in filtering applications |
| Operating Temperature | −65°C to +150°C - supports deployment in automotive under-hood, industrial control, and extended-environment electronics |
Pinout & Package
Package: SOD323F - ultra-small plastic surface-mount package (1.25 mm × 1.70 mm × 0.95 mm), halogen- and antimony-free, matte tin-plated copper alloy leadframe, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to lower-potential node in reverse-bias configuration; forms reference return path |
| Cathode | Reverse-bias input / regulated output node | Marked by cathode band; supplies stable VZ when biased above breakdown voltage |
Key Features
| Feature | Design Value |
|---|---|
| Precision Zener voltage tolerance | ±2.5% (8.02–8.36 V) - enables accurate voltage setting without post-calibration in space-constrained designs |
| Low dynamic impedance | 10 Ω at 5 mA - maintains regulation stability under varying load currents in feedback and sensing paths |
| Automated assembly compatibility | SOD323F footprint with J-STD-020 Level 1 moisture rating - supports high-yield reflow soldering without baking or special handling |
| Environmental compliance | Lead-free, RoHS 3 compliant, halogen- and antimony-free "Green" compound - meets global regulatory requirements for consumer and automotive end equipment |
Applications
| Power Supply Feedback Reference | Overvoltage Protection Clamp |
|---|---|
|
Use Scenario: Used in the feedback divider network of isolated DC-DC converters to regulate output voltage within ±1%. IC Role / Device Role / Timing Role: Precision voltage reference element providing stable VZ to optocoupler or error amplifier input. Use Value: 10Ω ZZT minimizes regulation error caused by divider current variation; −4.6mV/°C TC allows predictable compensation in wide-temperature designs. |
Use Scenario: Placed across sensitive IC inputs to clamp transients exceeding 8.4V during ESD or surge events. IC Role / Device Role / Timing Role: Fast-acting shunt protection device limiting voltage rise before damage occurs. Use Value: 0.5μA leakage at 6.56V prevents false triggering; 57pF capacitance avoids signal integrity degradation in data lines. |
| Low-Power Analog Sensor Biasing | Microcontroller ADC Reference Stabilization |
|
Use Scenario: Supplies stable 8.2V bias to op-amp rails or sensor excitation circuitry in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Low-power voltage reference source replacing higher-current regulators where quiescent current must be minimized. Use Value: 400mW rating permits operation at 1mA–5mA, reducing standby current while maintaining ±0.2V regulation accuracy. |
Use Scenario: Provides external reference voltage to 12-bit ADCs requiring better than ±0.5% full-scale accuracy. IC Role / Device Role / Timing Role: Precision analog reference node decoupled from noisy digital supply rails. Use Value: Tight 8.02–8.36V tolerance and −4.6mV/°C TC enable <0.1% drift over −40°C to +85°C, improving measurement repeatability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C8V2 (Nexperia) | VZ = 8.2V ±5%, ZZT = 15Ω @ 5mA, SOT23 package, 350mW rating | Higher tolerance and impedance; larger footprint; less suitable for high-accuracy feedback | Select when cost sensitivity outweighs regulation precision and board space is not constrained |
| MMSZ4689 (ON Semiconductor) | VZ = 8.2V ±5%, ZZT = 15Ω @ 5mA, SOD123 package, 500mW rating | Higher power but looser tolerance; requires larger pad layout; higher thermal mass | Prefer for higher-power clamping where 8.2V reference stability is secondary to surge energy absorption |
Compared with BZX84-C8V2 and MMSZ4689, D3Z8V2BF-7 delivers tighter voltage tolerance (±2.5% vs ±5%), lower dynamic impedance (10Ω vs 15Ω), and optimized SOD323F footprint for miniaturized layouts-making it superior for precision regulation in space- and accuracy-critical applications.
Availability
D3Z8V2BF-7 is available at Aetrix Electronics and suitable for power supply feedback reference, overvoltage protection clamp, and low-power analog sensor biasing requiring stable component supply and guaranteed long-term sourcing.
Supply support for D3Z8V2BF-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
This device belongs to Diodes' D3Z series of precision Zener diodes, engineered specifically for high-accuracy voltage reference and regulation in compact, automated-assembly-ready packages for automotive, industrial, and consumer electronics.
FAQ
What is the maximum continuous reverse current the D3Z8V2BF-7 can sustain without degradation?
The device is rated for 5mA test current (IZT) and supports continuous reverse current up to 50mA under derated power conditions. At 25°C ambient, its 400mW limit allows ~48.8mA at 8.2V (P = V × I), but thermal constraints reduce practical max to ~35mA on standard FR-4. Derating curves in Figure 1 must be applied above 25°C.
Does the D3Z8V2BF-7 meet AEC-Q101 qualification for automotive use?
No-this part is not AEC-Q101 qualified. The datasheet explicitly states that automotive-qualified versions require specific change control, PPAP capability, and IATF 16949 manufacturing; D3Z8V2BF-7 is intended for commercial and industrial applications. For automotive, contact Diodes directly for qualified variants such as AZ series equivalents.
How does the cathode band orientation map to the SOD323F package outline?
The cathode band aligns with the flat edge on the top surface of the SOD323F package, corresponding to Pin 2 in the standard diode pinout. Per Diodes' mechanical drawing, the band is centered on the shorter side opposite the anode terminal, and the anode connects to the leadframe's inner extension beneath the unmarked side.
Can D3Z8V2BF-7 replace D3Z8V2B in a design?
Yes-D3Z8V2BF-7 is the tape-and-reel packaged version of D3Z8V2B (bulk). Both share identical electrical specifications, SOD323F package, marking code "LD", and thermal characteristics. The "-7" suffix denotes 3,000-piece reel packaging per ordering information; no functional or performance differences exist.
D3Z8V2BF-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-90, SOD-323F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 8.19 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 5 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
D3Z8V2BF-7 FAQ
1.How can I place an order for D3Z8V2BF-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for D3Z8V2BF-7 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 D3Z8V2BF-7 reliable?
The price and inventory of D3Z8V2BF-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D3Z8V2BF-7 is usually 5 days.
3.What payment methods are accepted for D3Z8V2BF-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D3Z8V2BF-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D3Z8V2BF-7?
D3Z8V2BF-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D3Z8V2BF-7 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 D3Z8V2BF-7?
For technical support, including D3Z8V2BF-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D3Z8V2BF-7 requirements.
6.How does Aetrix verify that D3Z8V2BF-7 is sourced from the original manufacturer or authorized distributors?
All D3Z8V2BF-7 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 D3Z8V2BF-7 meets industry standards.
7.What is the process for return or replacement of D3Z8V2BF-7?
All D3Z8V2BF-7 units undergo pre-shipment inspection (PSI). If there is an issue with D3Z8V2BF-7, 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 D3Z8V2BF-7 part is unused and in its original packaging.
Return procedure for D3Z8V2BF-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
D3Z8V2BF-7 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
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…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
