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Diodes Incorporated D3Z3V6BF-7
- Part No.:
- D3Z3V6BF-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
D3Z3V6BF-7.pdf
- Description:
- DIODE ZENER 3.73V 400MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:2,053
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Product details
Overview
D3Z3V6BF-7 from Diodes Incorporated is a precision 3.6 V Zener diode in SOD323F package, rated for 400 mW power dissipation on FR-4 PCB, with ±2.8% zener voltage tolerance (3.60–3.85 V at 5 mA), 90 Ω dynamic impedance at 5 mA, and -2.4 mV/°C temperature coefficient. It serves as a stable voltage reference or overvoltage clamp in low-power analog signal conditioning circuits.
For engineers reviewing the D3Z3V6BF-7 datasheet, D3Z3V6BF-7 pinout, D3Z3V6BF-7 application, or D3Z3V6BF-7 equivalent, key selection criteria include zener voltage accuracy, thermal stability in compact layouts, low leakage (<5 μA at 1 V reverse), and compatibility with automated SMT assembly on space-constrained boards.
Technical Context
This device operates in reverse-bias breakdown mode to maintain a stable reference voltage under varying load and temperature conditions. Its tight 3.60–3.85 V zener range and -2.4 mV/°C tempco enable predictable regulation in battery-powered sensors and ADC reference circuits.
The SOD323F package delivers low thermal resistance (312.5 °C/W) and supports high-density placement. Cathode band marking and matte tin-plated terminals ensure reliable solderability per MIL-STD-202, Method 208, with moisture sensitivity level 1 compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.60–3.85 V at 5 mA - defines precise clamping/reference point for low-voltage analog rails |
| Power Dissipation (PD) | 400 mW on FR-4 - supports continuous operation in thermally constrained PCBs without heatsinking |
| Zener Impedance (ZZT) | 90 Ω at 5 mA - ensures minimal output voltage variation under small-signal current changes |
| Reverse Leakage (IR) | <5 μA at 1 V - prevents excessive quiescent current in battery-backed monitoring circuits |
| Tempco (αVZ) | -2.4 mV/°C - enables predictable drift compensation in industrial temperature ranges (-65 to +150°C) |
| Capacitance (CJ) | 185 pF at 0 V - impacts high-frequency noise filtering capability in RF-adjacent bias networks |
| Package | SOD323F - 1.25 mm × 1.70 mm footprint ideal for wearables and IoT sensor nodes |
Pinout & Package
Package: SOD323F - surface-mount plastic case with cathode band marking; dimensions: 1.25 mm (D) × 1.70 mm (E) × 0.70 mm (A max); weight ≈ 0.01 g; UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node during reverse-bias regulation |
| Cathode | Zener breakdown terminal / voltage reference output | Provides stabilized 3.6 V output when reverse-biased; marked by visible band on package |
Key Features
| Feature | Design Value |
|---|---|
| Precision voltage reference | ±2.8% VZ tolerance at 5 mA enables <1% system-level reference error in 3.3 V rail monitoring |
| Automated assembly compatibility | SOD323F footprint and matte tin terminals support high-yield reflow soldering without tombstoning |
| Green material compliance | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb) meets automotive and medical RoHS 3 requirements |
| Thermal robustness | Rated for -65°C to +150°C operation - suitable for under-hood automotive sensors and industrial PLC I/O modules |
Applications
| Industrial Sensor Signal Conditioning | USB-C Power Delivery Monitoring |
|---|---|
|
Use Scenario: Stabilizing reference voltage for 12-bit ADC measuring thermistor or strain gauge outputs in factory-floor transmitters. IC Role / Device Role / Timing Role: Precision shunt reference providing fixed 3.6 V bias to op-amp input stage and ADC reference divider network. Use Value: Enables ±0.5% full-scale measurement accuracy across -40°C to +85°C ambient due to matched tempco and low ZZT. |
Use Scenario: Clamping CC line voltage during USB-C port negotiation to prevent controller latch-up during hot-plug events. IC Role / Device Role / Timing Role: Fast-response overvoltage protector placed between CC pin and 3.3 V logic rail of PD controller IC. Use Value: Limits transient spikes to ≤3.85 V with <5 μA leakage, preserving bus communication integrity without loading the CC line. |
| Low-Power Wearable Battery Gauge | Medical Pulse Oximeter Bias Network |
|
Use Scenario: Generating stable reference for coulomb counter IC monitoring Li-ion cell voltage in fitness trackers. IC Role / Device Role / Timing Role: Low-quiescent shunt regulator supplying clean 3.6 V to fuel-gauge analog front-end. Use Value: Draws only 0.5 μA at 2.8 V supply, extending battery life >10% versus standard 5% tolerance Zeners. |
Use Scenario: Setting bias point for red/IR LED drivers in portable pulse oximeters requiring stable optical output. IC Role / Device Role / Timing Role: Temperature-compensated voltage reference defining LED current setpoint in constant-current source. Use Value: -2.4 mV/°C tempco offsets LED forward voltage drift, maintaining ±2% optical power stability from 10°C to 40°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B3V6,115 (Nexperia) | Same 3.6 V nominal, ±5% tolerance (vs. ±2.8%), 400 mW rating, SOD323 package | Higher VZ uncertainty increases ADC reference error; suitable where cost > accuracy | Select when budget constraints outweigh need for sub-1% system calibration stability |
| MMSZ4685T1G (onsemi) | 3.6 V nominal, ±5% tolerance, 500 mW rating, SOD123 package (larger footprint) | Larger SOD123 requires 30% more board area; higher PD useful only with thermal relief | Choose only if existing layout uses SOD123 or requires >400 mW derating margin |
Compared with BZX384-B3V6 and MMSZ4685T1G, D3Z3V6BF-7 delivers tighter voltage control and smaller footprint-critical for miniaturized medical and portable electronics where reference accuracy and board space are co-constrained.
Availability
D3Z3V6BF-7 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, USB-C power delivery monitoring, and low-power wearable battery gauge applications requiring stable component supply across multi-year production cycles.
Supply support for D3Z3V6BF-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 centers across Asia and manufacturing in IATF 16949-certified facilities.
This device belongs to Diodes' D3Z series of precision Zener diodes, engineered specifically for high-accuracy voltage referencing in space-constrained, thermally variable environments such as automotive body electronics and portable instrumentation.
FAQ
What is the maximum reverse current specification for D3Z3V6BF-7 at 1 V?
The maximum reverse current (IR) is 5 μA at VR = 1 V, measured at 25°C. This low leakage ensures minimal power loss in always-on battery monitoring circuits and maintains signal integrity in high-impedance reference networks without introducing measurable offset error.
Can D3Z3V6BF-7 be used in automotive applications?
Yes-D3Z3V6BF-7 is manufactured in IATF 16949-certified facilities and supports PPAP documentation. While not pre-qualified to AEC-Q101, its -65°C to +150°C operating range, green material compliance, and traceable lot control make it suitable for non-safety-critical automotive modules like cabin sensors and infotainment power supervision.
How does the SOD323F package affect thermal performance?
The SOD323F package achieves 312.5 °C/W junction-to-ambient thermal resistance on standard FR-4 with recommended pad layout (35 mm × 25 mm). This allows full 400 mW dissipation only below 50°C ambient; above that, linear derating applies per Figure 1 in DS35437 Rev. 10-2.
Is there a lead-free and halogen-free version of this Zener diode?
Yes-D3Z3V6BF-7 is fully RoHS 3 compliant (2015/863/EU), with no purposely added lead, and classified as "Green" per Diodes' definition: <900 ppm bromine, <900 ppm chlorine, and <1000 ppm antimony compounds, verified via material declarations and third-party testing.
D3Z3V6BF-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):
- 3.73 V
- Tolerance:
- ±3%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 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
D3Z3V6BF-7 FAQ
1.How can I place an order for D3Z3V6BF-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for D3Z3V6BF-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 D3Z3V6BF-7 reliable?
The price and inventory of D3Z3V6BF-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D3Z3V6BF-7 is usually 5 days.
3.What payment methods are accepted for D3Z3V6BF-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D3Z3V6BF-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D3Z3V6BF-7?
D3Z3V6BF-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D3Z3V6BF-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 D3Z3V6BF-7?
For technical support, including D3Z3V6BF-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D3Z3V6BF-7 requirements.
6.How does Aetrix verify that D3Z3V6BF-7 is sourced from the original manufacturer or authorized distributors?
All D3Z3V6BF-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 D3Z3V6BF-7 meets industry standards.
7.What is the process for return or replacement of D3Z3V6BF-7?
All D3Z3V6BF-7 units undergo pre-shipment inspection (PSI). If there is an issue with D3Z3V6BF-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 D3Z3V6BF-7 part is unused and in its original packaging.
Return procedure for D3Z3V6BF-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
D3Z3V6BF-7 Tags
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