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Diodes Incorporated DDZ6V2B-7
- Part No.:
- DDZ6V2B-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
DDZ6V2B-7.pdf
- Description:
- DIODE ZENER 6.2V 470MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:33,040
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Product details
Overview
DDZ6V2B-7 from Diodes Incorporated is a surface-mount precision Zener diode engineered for voltage regulation and reference applications in low-power analog circuits. It delivers a tightly controlled zener voltage of 5.96–6.27 V at 20 mA test current, with low dynamic impedance (7 Ω at 1 kHz), low temperature coefficient (±0.04 %/°C typical), and operates across –65 to +150 °C. It is commonly used in power supply feedback loops, ADC reference buffers, and overvoltage protection circuits.
For engineers reviewing the DDZ6V2B-7 datasheet, DDZ6V2B-7 pinout, DDZ6V2B-7 application, or DDZ6V2B-7 equivalent, this page provides verified electrical parameters, SOD123 package details, thermal derating behavior, reverse leakage performance at 4.0 V, and validated automotive-grade alternatives for design-in assurance.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal zener voltage centered at 6.12 V (midpoint of 5.96–6.27 V range) and exhibits low knee impedance (150 Ω at 1 mA), enabling stable regulation under light-load conditions. Its thermal resistance junction-to-ambient is 425 °C/W on minimal pad layout and 266 °C/W on 1-in² copper, directly impacting power handling in compact PCB designs.
The device uses an alloy-42 leadframe with matte tin annealed finish, rated for solderability per MIL-STD-202 Method 208, and complies with RoHS 3, halogen-free, and antimony-free "Green" requirements. Moisture sensitivity level is J-STD-020 Level 1 - suitable for standard reflow without baking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage Range | 5.96–6.27 V at IZT = 20 mA - ensures ±2.6% tolerance for precision reference use |
| Zener Impedance | 7 Ω at f = 1 kHz, IZT = 20 mA - enables low-noise, stable regulation under dynamic load changes |
| Max Reverse Current | 0.5 µA at VR = 4.0 V - guarantees minimal leakage in high-impedance bias networks |
| Power Dissipation | 294 mW at TA = 25°C (minimal pad layout) - defines safe continuous operation without forced cooling |
| Thermal Resistance | 425 °C/W (Junction-to-Ambient, minimal pad) - determines temperature rise per watt in space-constrained layouts |
| Operating Temp | –65 to +150 °C - supports industrial and under-hood automotive environments without derating |
| Package | SOD123 - 2-pin surface-mount outline with cathode band marking; footprint compatible with automated pick-and-place |
Pinout & Package
DDZ6V2B-7 is housed in the SOD123 plastic package: 2-terminal, unidirectional, cathode-marked surface-mount device. Dimensions: 1.55 mm width × 2.65 mm length × 1.05 mm height (max), with 0.57 mm lead pitch and 0.30 mm lead length. Cathode terminal is identified by a visible band on the component body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener reference ground node | Connected to circuit ground or lowest potential point in shunt regulator topology |
| Cathode | Zener breakdown terminal / regulated output node | Connected to input voltage source via current-limiting resistor; supplies stable 6.12 V reference |
Key Features
| Feature | Design Value |
|---|---|
| Tight Zener voltage tolerance | ±2.6% (5.96–6.27 V) at 20 mA - reduces need for post-calibration in voltage reference designs |
| Low dynamic impedance | 7 Ω at 1 kHz - maintains regulation stability during transient load steps in feedback paths |
| Automotive qualification option | DDZ6V2BQ-7 variant AEC-Q101 qualified - supports functional safety-critical systems requiring PPAP documentation |
| Halogen- and antimony-free "Green" construction | <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - meets strict environmental compliance for global OEM programs |
| Moisture sensitivity Level 1 | No bake required before reflow - simplifies manufacturing flow and reduces assembly cost |
Applications
| Power Supply Feedback Loop | ADC Reference Buffer |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback or buck-boost converters using optocoupler feedback. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 6.2 V threshold to TL431 or optocoupler LED driver. Use Value: Enables ±1% output accuracy over line/load/temperature with no external trimming components. |
Use Scenario: Providing stable reference voltage to 12-bit SAR ADCs in sensor signal conditioning front-ends. IC Role / Device Role / Timing Role: Low-drift, low-noise voltage reference replacing higher-cost bandgap ICs in cost-sensitive designs. Use Value: Delivers <10 ppm/°C effective TC when buffered, supporting 0.025% full-scale accuracy at room temperature. |
| Overvoltage Protection Clamp | Microcontroller Reset Circuit |
Use Scenario: Protecting I/O pins or internal regulators from transient surges exceeding 6.8 V. IC Role / Device Role / Timing Role: Fast-acting clamp diode placed between rail and ground, triggered above 6.27 V. Use Value: Limits peak voltage to ≤6.8 V with sub-100 ns response, preventing latch-up in 3.3 V logic interfaces. |
Use Scenario: Generating clean reset pulse for ARM Cortex-M microcontrollers during brown-out events. IC Role / Device Role / Timing Role: Zener-based threshold detector feeding RC delay network into reset supervisor input. Use Value: Ensures reliable reset assertion down to 4.75 V supply while rejecting noise spikes below 5.5 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C6V2 (Nexperia) | Same SOD123 package; looser 5% tolerance (5.89–6.51 V); higher ZZT = 10 Ω; 350 mW PD. | Acceptable where ±5% regulation suffices; not recommended for precision feedback loops. | Select for cost-sensitive consumer applications where calibration is performed downstream. |
| MMSZ4687 (ON Semiconductor) | SOD123; tighter 5% tolerance but asymmetric range (5.89–6.31 V); ZZT = 10 Ω; 500 mW PD at TL = 75°C. | Better power handling, but higher impedance limits high-frequency regulation fidelity. | Prefer for higher ambient temperature environments (>85°C) where thermal margin is critical. |
Compared with BZX84-C6V2 and MMSZ4687, DDZ6V2B-7 offers superior voltage tightness (±2.6% vs. ±5%), lower impedance (7 Ω vs. ≥10 Ω), and guaranteed low-leakage performance (0.5 µA @ 4 V), making it optimal for precision analog and automotive-compliant designs.
Availability
DDZ6V2B-7 is available at Aetrix Electronics and suitable for power supply feedback loops, ADC reference buffers, overvoltage protection clamps, and microcontroller reset circuits requiring stable component supply and consistent parametric performance across production lots.
Supply support for DDZ6V2B-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, specializing in high-reliability, industry-qualified components for automotive, industrial, and computing markets.
The DDZ series targets precision voltage reference needs in space-constrained, thermally demanding applications - designed specifically for stable Zener operation in SOD123 packaging with automotive-grade variants available.
FAQ
What is the maximum continuous power dissipation for DDZ6V2B-7 at 75°C board temperature?
At TL = +75°C, DDZ6V2B-7 supports 500 mW continuous power dissipation, as specified in the Absolute Maximum Ratings table. This rating assumes direct thermal coupling to a 75°C heatsink or board trace, and exceeds its 294 mW rating at 25°C ambient with minimal copper area.
Does DDZ6V2B-7 have automotive qualification?
DDZ6V2B-7 itself is the commercial-grade part. The automotive-qualified version is DDZ6V2BQ-7, which is AEC-Q101 certified, PPAP capable, and manufactured in IATF16949-certified facilities - identical electrical specs but with enhanced process controls and traceability.
How does the temperature coefficient affect regulation accuracy over –40°C to +125°C?
Based on Figure 16, DDZ6V2B's TC is approximately +0.04 %/°C near 6.2 V. Over a 165°C span, this yields ~6.6 mV/°C × 165°C ≈ ±1.1 V drift - meaning regulation stays within 5.96–6.27 V at 25°C, but may shift to ~5.8–6.4 V across full temperature range without compensation.
Can DDZ6V2B-7 replace a 6.2 V Zener in a TL431-based shunt regulator?
Yes - DDZ6V2B-7 serves as a direct replacement for the Zener element in TL431 feedback networks. Its low 7 Ω impedance improves loop stability versus higher-Z Zeners, and its tight tolerance reduces output voltage variation without adjusting resistor ratios.
DDZ6V2B-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±3%
- Power - Max:
- 470 mW
- Impedance (Max) (Zzt):
- 7 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 4 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
DDZ6V2B-7 FAQ
1.How can I place an order for DDZ6V2B-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ6V2B-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 DDZ6V2B-7 reliable?
The price and inventory of DDZ6V2B-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ6V2B-7 is usually 5 days.
3.What payment methods are accepted for DDZ6V2B-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ6V2B-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ6V2B-7?
DDZ6V2B-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ6V2B-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 DDZ6V2B-7?
For technical support, including DDZ6V2B-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ6V2B-7 requirements.
6.How does Aetrix verify that DDZ6V2B-7 is sourced from the original manufacturer or authorized distributors?
All DDZ6V2B-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 DDZ6V2B-7 meets industry standards.
7.What is the process for return or replacement of DDZ6V2B-7?
All DDZ6V2B-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ6V2B-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 DDZ6V2B-7 part is unused and in its original packaging.
Return procedure for DDZ6V2B-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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