My Inquiry
My Account
Taiwan Semiconductor Corporation BZX585B36
- Part No.:
- BZX585B36
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX585B36.pdf
- Description:
- DIODE ZENER 36V 200MW SOD523F
- Quantity:
- Payment:
- Shipping:
Inventory:9,764
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX585B36 from Taiwan Semiconductor is a surface-mount Zener diode with nominal zener voltage 36 V, ±2% tolerance, 200 mW power dissipation, and SOD-523F package. It provides precise voltage regulation in low-power biasing, reference, and protection circuits for consumer, industrial, and communication electronics.
For engineers reviewing the BZX585B36 datasheet, BZX585B36 pinout, BZX585B36 application, or BZX585B36 equivalent, key selection criteria include zener voltage accuracy (35.28–36.72 V at 2 mA), dynamic impedance (329 Ω max at IZT), reverse leakage (<0.045 µA at 25.2 V), temperature coefficient (+30.4 mV/°C), and MSL-1 reflow compatibility.
Technical Context
The BZX585B36 operates as a two-terminal voltage reference device, conducting in reverse breakdown when biased above its specified zener voltage. Its 2% tolerance and tight voltage spread ensure stable reference generation in precision analog circuits without external trimming.
Designed for ambient temperatures up to +150°C and junction temperatures to +150°C, it maintains regulation under thermal stress. Its SOD-523F package supports high-density PCB layouts and withstands 260°C/10s soldering per JEDEC J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V nominal, 35.28–36.72 V at 2 mA - ensures accurate voltage clamping within ±2% across production lot |
| Power Dissipation (PD) | 200 mW - limits continuous power handling in compact SOD-523F footprint without forced cooling |
| Zener Impedance (ZZT) | 329 Ω max at 2 mA - defines regulation stiffness; higher impedance than lower-voltage variants due to intrinsic semiconductor physics |
| Reverse Leakage (IR) | ≤0.045 µA at 25.2 V - enables ultra-low standby current in battery-backed reference circuits |
| Temperature Coefficient (TC) | +30.4 mV/°C - positive drift characteristic typical of >6 V Zeners; requires thermal compensation in high-stability references |
| Thermal Resistance (RθJA) | 680 °C/W - reflects high junction-to-ambient resistance inherent to SOD-523F's minimal copper pad exposure |
| Moisture Sensitivity Level | MSL-1 - allows unlimited floor life and standard reflow without baking preconditioning |
Pinout & Package
SOD-523F is a miniature surface-mount plastic package measuring 0.70–0.90 mm (A), 1.50–1.70 mm (B), with cathode marked by a band on the top surface. The device has two terminals: anode and cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node | Connected to circuit common or lower-potential rail; forms return path during forward bias or zener regulation |
| Cathode | Zener breakdown terminal / Voltage reference output | Marked end; supplies regulated voltage when reverse-biased above VZ; must be held at higher potential than anode |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables direct use in precision voltage references without calibration or trimming components |
| Halogen-free construction | Meets IEC 61249-2-21 for environmentally compliant manufacturing and end-of-life processing |
| Pb-free and RoHS-compliant | Supports global regulatory compliance including EU Directive 2011/65/EU and WEEE 2002/96/EC |
| 260°C/10s soldering guarantee | Ensures robust assembly yield in standard lead-free reflow profiles without parametric shift or delamination |
| Green compound encapsulation | Provides consistent visual identification and meets industry-standard material traceability requirements |
Applications
| Overvoltage Protection in USB-C Power Delivery | Reference Voltage Source for ADC Biasing |
|---|---|
Use Scenario: Clamps transient surges on 20 V PP power rails during hot-plug events in USB-C PD sink designs. IC Role / Device Role / Timing Role: Zener diode acting as shunt overvoltage clamp, diverting excess energy to ground before IC damage occurs. Use Value: 36 V rating provides 16 V headroom above nominal 20 V rail, while 200 mW rating handles short-duration transients per IEC 61000-4-5 Level 3. | Use Scenario: Supplies stable 36 V reference to op-amp-based gain-setting network for 16-bit SAR ADC front-end. IC Role / Device Role / Timing Role: Precision DC voltage reference establishing known input offset for analog signal conditioning. Use Value: ±2% tolerance and +30.4 mV/°C TC allow predictable error budgeting; low leakage (<0.045 µA) avoids loading high-impedance divider networks. |
| Low-Power Sensor Excitation Supply | ESD-Safe Bias Network for RF Front-End |
Use Scenario: Generates regulated excitation voltage for piezoresistive pressure sensors in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Passive voltage regulator providing constant bias to sensor bridge, independent of supply variation. Use Value: 200 mW dissipation supports ~5.6 mA max current at 36 V, sufficient for microamp-level sensor excitation with margin for aging drift. | Use Scenario: Biases LNA input matching network in sub-GHz ISM-band transceivers while surviving IEC 61000-4-2 contact ESD. IC Role / Device Role / Timing Role: DC bias element with integrated transient suppression via controlled zener breakdown. Use Value: SOD-523F package minimizes parasitic capacitance (<1 pF at 0 V bias), preserving RF impedance match; MSL-1 rating ensures reliability in automated assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5267B (ON Semiconductor) | 36 V nominal, ±5% tolerance, 350 mW, SOT-23 package, 700 Ω ZZT | Higher power and looser tolerance; larger footprint and higher thermal resistance | Select when board space permits larger package and tighter voltage tolerance is not required |
| BZX384-B36 (Nexperia) | 36 V nominal, ±2% tolerance, 300 mW, SOD-323 package, 300 Ω ZZT, MSL-1 | Same tolerance and voltage, higher PD, slightly larger SOD-323 footprint (1.3 × 0.85 mm vs. 0.9 × 1.6 mm) | Choose for improved power margin while retaining comparable thermal and electrical performance |
Compared with MMBZ5267B and BZX384-B36, the BZX585B36 offers the smallest footprint (SOD-523F), lowest leakage (<0.045 µA), and best fit for ultra-dense, low-power, high-precision reference designs where board area is constrained.
Availability
BZX585B36 is available at Aetrix Electronics and suitable for overvoltage protection, precision reference generation, low-power sensor biasing, and ESD-safe RF biasing requiring stable component supply and full traceability.
Supply support for BZX585B36 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, automotive, and consumer markets since 1979.
The BZX585B36 belongs to TSC's Small Signal Product line, engineered for high-reliability, low-power voltage regulation and protection in space-constrained, thermally demanding applications.
FAQ
What is the exact zener voltage range for BZX585B36 at 25°C?
The BZX585B36 has a guaranteed zener voltage range of 35.28 V to 36.72 V when tested at 2 mA (IZT) and ambient temperature 25°C. This ±2% tolerance is confirmed in the Electrical Characteristics table of the official Taiwan Semiconductor datasheet revision C1607. The BZX585B36 achieves this tight specification through laser-trimmed wafer-level process control.
Is BZX585B36 compatible with lead-free reflow processes?
Yes, the BZX585B36 is qualified for lead-free reflow soldering at 260°C for 10 seconds, meeting JEDEC J-STD-020 requirements. Its halogen-free epoxy and Pb-free terminations ensure compatibility with standard SAC305 profiles. The BZX585B36's MSL-1 rating means no baking is required prior to assembly, simplifying manufacturing flow.
What is the maximum reverse leakage current for BZX585B36?
The maximum reverse leakage current for BZX585B36 is 0.045 µA at 25.2 V (70% of nominal VZ), measured at 25°C. This ultra-low leakage is critical for battery-operated systems and high-impedance reference networks. The BZX585B36 maintains this spec across its full operating temperature range, supporting reliable long-term operation.
Does BZX585B36 have a specified zener impedance, and what does it mean for circuit design?
Yes, the BZX585B36 has a maximum zener impedance (ZZT) of 329 Ω at 2 mA test current. This value quantifies how much the output voltage changes per unit change in current - lower ZZT yields better regulation. At 36 V, the BZX585B36's ZZT is higher than lower-voltage variants due to semiconductor physics, so designers should account for steeper load regulation slope in sensitive analog circuits using the BZX585B36.
What packaging options are available for BZX585B36?
The BZX585B36 is supplied in 7-inch reels containing 8,000 units (standard packing code RSG). Tape-and-reel format complies with EIA-481-D standards and supports high-speed pick-and-place assembly. Each reel includes full traceability documentation, and the green compound marking aligns with Taiwan Semiconductor's Small Signal Product family identification system for the BZX585B36.
BZX585B36 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 36 V
- Tolerance:
- ±2%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 45 nA @ 25.2 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523F
BZX585B36 FAQ
1.How can I place an order for BZX585B36 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX585B36 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 BZX585B36 reliable?
The price and inventory of BZX585B36 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX585B36 is usually 5 days.
3.What payment methods are accepted for BZX585B36?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX585B36 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX585B36?
BZX585B36 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX585B36 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 BZX585B36?
For technical support, including BZX585B36 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX585B36 requirements.
6.How does Aetrix verify that BZX585B36 is sourced from the original manufacturer or authorized distributors?
All BZX585B36 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 BZX585B36 meets industry standards.
7.What is the process for return or replacement of BZX585B36?
All BZX585B36 units undergo pre-shipment inspection (PSI). If there is an issue with BZX585B36, 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 BZX585B36 part is unused and in its original packaging.
Return procedure for BZX585B36:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX585B36 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
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
