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Diodes Incorporated BZT585B6V2TQ-7
- Part No.:
- BZT585B6V2TQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZT585B6V2TQ-7.pdf
- Description:
- DIODE ZENER 6.2V 350MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:2,385
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Product details
Overview
BZT585B6V2TQ-7 from Diodes Incorporated is a precision Zener diode with 6.2 V nominal breakdown voltage, ±2.0% tolerance, 10 Ω dynamic impedance at 5 mA, and AEC-Q101 qualification for automotive use in voltage regulation and reference circuits.
For engineers reviewing the BZT585B6V2TQ-7 datasheet, BZT585B6V2TQ-7 pinout, BZT585B6V2TQ-7 application, or BZT585B6V2TQ-7 equivalent, key selection criteria include Zener voltage accuracy, low thermal coefficient (+2.2 mV/°C), SOD523 package footprint, and automotive-grade reliability under temperature cycling and humidity exposure.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain stable voltage across load variations, with specified test current of 5 mA and knee current of 1 mA. Its low 10 Ω Zener impedance at IZT ensures minimal voltage deviation under dynamic load conditions.
The device exhibits a positive temperature coefficient of +2.2 mV/°C at 5 mA, enabling predictable drift compensation in reference designs. It is rated for 350 mW power dissipation on FR-4 PCB with minimum pad layout and supports operation from –65°C to +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.2 V nominal, 6.08–6.32 V range at 5 mA - enables tight voltage reference in power supply feedback loops |
| Zener Impedance (ZZT) | 10 Ω at 5 mA - ensures <±62 mV output shift for ±0.62 mA load change |
| Temperature Coefficient | +2.2 mV/°C at 5 mA - allows accurate thermal drift modeling in automotive cabin electronics |
| Power Dissipation | 350 mW at 25°C ambient - supports continuous regulation in compact SOD523 footprint |
| Reverse Leakage (IR) | 3 µA max at 4 V - guarantees low quiescent current in battery-backed voltage monitors |
| Capacitance (CT) | 250 pF at 0 V, 1 MHz - limits high-frequency noise coupling in analog sensor signal chains |
Pinout & Package
Package: SOD523 - ultra-compact surface-mount plastic case (1.25 mm × 0.85 mm × 0.6 mm), halogen- and antimony-free, RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in reverse-bias configuration; used for forward-voltage clamping if needed |
| Cathode | Breakdown voltage reference terminal | Marked with band; connects to regulated output node; defines Zener voltage relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| ±2.0% Zener voltage tolerance | Reduces need for post-production trimming in automotive body control modules |
| AEC-Q101 qualified | Validated for 1000-hour temperature cycling (-40°C to +125°C) and HAST testing per automotive stress requirements |
| SOD523 package | Enables placement density >2× higher than SOD-123 in space-constrained ADAS camera modules |
| Low 350 mW thermal resistance (357°C/W) | Permits direct integration into 12 V rail monitoring without external heatsinking in infotainment head units |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating 5 V reference for microcontroller ADC inputs in door module ECUs exposed to 12 V battery transients. IC Role / Device Role / Timing Role: Precision voltage reference stabilizing analog front-end bias points during load-dump events. Use Value: Maintains <±124 mV error over full temperature range (–40°C to +125°C), ensuring ADC linearity within 12-bit resolution. | Use Scenario: Providing stable 6.2 V reference for 4–20 mA transmitter loop-powered sensors in factory automation. IC Role / Device Role / Timing Role: Shunt regulator establishing fixed reference for op-amp current-sense circuitry. Use Value: Delivers 3 µA max leakage at 4 V, minimizing offset error in low-power 2-wire transmitters. |
| USB-C Power Delivery Monitor | Medical Patient Monitor Auxiliary Supply |
Use Scenario: Clamping and regulating auxiliary 6.2 V rail for USB PD controller logic in portable chargers. IC Role / Device Role / Timing Role: Overvoltage protection and voltage stabilization element in multi-rail DC-DC converter feedback path. Use Value: 10 Ω ZZT limits voltage deviation to <±50 mV under 0.5 mA transient load steps, preserving PD negotiation integrity. | Use Scenario: Generating isolated 6.2 V reference for ECG front-end instrumentation amplifiers in battery-operated patient monitors. IC Role / Device Role / Timing Role: Low-noise voltage reference source decoupled from main SMPS output. Use Value: 250 pF capacitance minimizes RF coupling into high-gain analog paths, meeting IEC 60601-1 EMC immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ5234B-7-F | Zener voltage 6.2 V ±5%, ZZT = 13 Ω at 20 mA, SOD-123 package (larger footprint) | Higher tolerance and different test current reduce accuracy in precision references | Select when cost priority outweighs voltage stability and board space constraints |
| BZX84-C6V2 | Zener voltage 6.2 V ±5%, ZZT = 60 Ω at 5 mA, SOT-23 package (3-pin, cathode/anode/NC) | Higher impedance degrades regulation under varying loads; non-automotive qualification | Choose only for non-automotive consumer applications where AEC-Q101 is not required |
Compared with MMSZ5234B-7-F and BZX84-C6V2, the BZT585B6V2TQ-7 delivers tighter voltage tolerance, lower dynamic impedance, smaller SOD523 footprint, and full AEC-Q101 compliance-making it the preferred choice for automotive and high-reliability industrial voltage reference designs.
Availability
BZT585B6V2TQ-7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor transmitters, USB-C power delivery systems, and medical auxiliary supplies requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZT585B6V2TQ-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.
The BZT585 series belongs to Diodes' precision Zener diode product line, engineered specifically for automotive and industrial applications demanding high voltage accuracy, low thermal drift, and robust AEC-Q101 reliability validation.
FAQ
What is the maximum reverse voltage this Zener diode can withstand before breakdown?
The BZT585B6V2TQ-7 has a nominal Zener voltage of 6.2 V with a guaranteed range of 6.08 V to 6.32 V at 5 mA test current. Breakdown occurs within this range; it is not rated for sustained reverse voltage above 6.32 V without entering uncontrolled conduction or exceeding power limits.
Does this part require a series current-limiting resistor in typical Zener regulator configurations?
Yes - a series resistor is mandatory to limit current through the diode to stay within its 350 mW power rating. For example, at 12 V input and 6.2 V output, a 1 kΩ resistor limits worst-case current to ~5.8 mA, keeping power dissipation below 36 mW and well within safe operating area.
Is the SOD523 package compatible with standard reflow soldering profiles for lead-free assembly?
Yes - the BZT585B6V2TQ-7 is rated for moisture sensitivity level 1 per J-STD-020 and supports standard IPC/JEDEC J-STD-020D reflow profiles, including peak temperatures up to 260°C for ≤60 seconds, with no pre-bake required due to its MSL-1 classification.
How does the +2.2 mV/°C temperature coefficient affect long-term voltage stability in automotive environments?
Over the automotive temperature range (–40°C to +125°C), the coefficient causes a total drift of +363 mV (165°C × 2.2 mV/°C). Combined with initial ±2.0% tolerance (±124 mV), total worst-case variation is ±487 mV - acceptable for non-critical reference roles but requires compensation in high-precision ADC references.
BZT585B6V2TQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±2%
- Power - Max:
- 350 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 4 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
BZT585B6V2TQ-7 FAQ
1.How can I place an order for BZT585B6V2TQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT585B6V2TQ-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 BZT585B6V2TQ-7 reliable?
The price and inventory of BZT585B6V2TQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT585B6V2TQ-7 is usually 5 days.
3.What payment methods are accepted for BZT585B6V2TQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT585B6V2TQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT585B6V2TQ-7?
BZT585B6V2TQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT585B6V2TQ-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 BZT585B6V2TQ-7?
For technical support, including BZT585B6V2TQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT585B6V2TQ-7 requirements.
6.How does Aetrix verify that BZT585B6V2TQ-7 is sourced from the original manufacturer or authorized distributors?
All BZT585B6V2TQ-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 BZT585B6V2TQ-7 meets industry standards.
7.What is the process for return or replacement of BZT585B6V2TQ-7?
All BZT585B6V2TQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT585B6V2TQ-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 BZT585B6V2TQ-7 part is unused and in its original packaging.
Return procedure for BZT585B6V2TQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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