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Taiwan Semiconductor Corporation BZY55B13 RBG
- Part No.:
- BZY55B13 RBG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- 0805 (2012 Metric)
- Datasheet:
-
BZY55B13 RBG.pdf
- Description:
- DIODE ZENER 13V 500MW 805
- Quantity:
- Payment:
- Shipping:
Inventory:9,602
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Product details
Overview
BZY55B13 RBG from Taiwan Semiconductor is a surface-mount 13 V ±2% Zener diode in 0805 ceramic package, rated for 500 mW power dissipation and 5 mA test current, with 26 Ω dynamic impedance at IZT and 0.1 µA leakage at 10.0 V reverse bias-used as a precision voltage reference in DC/DC converter feedback loops.
For engineers reviewing the BZY55B13 RBG datasheet, BZY55B13 RBG pinout, BZY55B13 RBG application, or BZY55B13 RBG equivalent, key selection criteria include verified Zener voltage tolerance (±2%), low leakage (<0.1 µA @ 10 V), stable 5 mA test condition, 0805 footprint compatibility, and thermal resistance (300 °C/W) for board-level power density constraints.
Technical Context
This device operates as a single-die, unidirectional Zener diode optimized for low-noise voltage regulation and reference applications. It exhibits a nominal Zener voltage of 13.00 V with tight ±2% tolerance, measured under 10 ms pulse conditions at 5 mA test current (IZT).
Its electrical behavior is defined by two key operating points: regulated breakdown at IZT = 5 mA (VZ = 12.74–13.26 V) and knee-region conduction at IZK = 1 mA (ZZK ≤ 110 Ω), with forward voltage of 1.5 V at 10 mA. Junction temperature range spans −55 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.74–13.26 V at 5 mA - ensures stable 13 V reference within ±2% across production lots |
| Power Dissipation (PD) | 500 mW - supports continuous operation in compact 0805 layout without forced cooling |
| Zener Impedance (ZZT) | 26 Ω at 5 mA - minimizes output voltage variation under load transients in feedback networks |
| Leakage Current (IR) | ≤0.1 µA at 10.0 V - preserves accuracy in high-impedance reference nodes |
| Junction Temperature (TJ) | −55 °C to +150 °C - enables use in automotive under-hood and industrial control environments |
| Package | 0805 (2.0 × 1.25 mm, ceramic) - compatible with standard SMT reflow profiles and automated placement |
| Forward Voltage (VF) | 1.5 V at 10 mA - defines minimum forward bias for polarity verification and ESD protection path design |
Pinout & Package
0805 ceramic surface-mount package with cathode indicated by a visible band on one end; no discrete pins-terminals are solder pads labeled Anode (non-banded end) and Cathode (banded end).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to lower-potential node in Zener mode | Must be held ≤ (VZ − 1.5 V) below cathode to avoid forward conduction during regulation |
| Cathode | Current exit point in forward bias; connected to higher-potential node in Zener mode | Provides stable 13 V reference when biased above anode by ≥13 V with current limiting |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Reduces need for post-production trimming in voltage reference circuits |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to reflow, lowering manufacturing cost and cycle time |
| UL 94HB molding compound | Meets flammability requirements for consumer and industrial PCB assemblies |
| JESD 201 Class 1A whisker resistance | Prevents tin whisker growth in long-life applications such as telecom infrastructure |
| Single-die construction | Ensures consistent thermal response and avoids mismatch in multi-element packages |
Applications
| DC/DC Converter Feedback Reference | Low-Voltage Stabilizer |
|---|---|
Use Scenario: Provides precise 13 V reference for error amplifier input in isolated flyback or buck-boost converters. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage reference in secondary-side regulation loop. Use Value: Tight ±2% VZ tolerance and low ZZT (26 Ω) maintain output regulation accuracy within ±1% over line/load variations. | Use Scenario: Stabilizes 13 V rail for microcontroller I/O or sensor biasing in battery-powered lighting modules. IC Role / Device Role / Timing Role: Shunt regulator maintaining constant voltage despite varying input (e.g., 15–24 V adapter output). Use Value: 0.1 µA leakage at 10 V prevents excessive quiescent drain in always-on systems. |
| Adapter Overvoltage Clamp | On-Board Voltage Monitor Node |
Use Scenario: Clamps transient surges above 13.3 V on AC/DC adapter outputs to protect downstream logic. IC Role / Device Role / Timing Role: Transient voltage suppressor operating in Zener breakdown during overvoltage events. Use Value: 500 mW rating sustains 100 ms surge pulses without degradation per JEDEC JESD22-A114. | Use Scenario: Generates a known 13 V threshold for comparator-based brown-out detection in embedded controllers. IC Role / Device Role / Timing Role: Precision voltage source defining trip point for reset or alert generation. Use Value: Stable VZ over −55 °C to +150 °C ensures reliable triggering across environmental extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5242BS-7-F | 13 V ±5%, 350 mW, SOT-323 package, 30 Ω Zener impedance at 20 mA | Higher power derating above 70 °C; requires different PCB footprint | Preferred where higher surge immunity is needed but board space allows SOT-323 |
| 1N4743A-TAP | 13 V ±5%, 1 W, DO-41 through-hole, 10 Ω Zener impedance at 25 mA | Not surface-mount; unsuitable for automated assembly or dense layouts | Used only in legacy repair or prototyping with through-hole constraints |
Compared with MMBZ5242BS-7-F and 1N4743A-TAP, the BZY55B13 RBG offers tighter voltage tolerance (±2% vs. ±5%), smaller 0805 footprint, and lower leakage-making it optimal for space-constrained, high-accuracy SMT designs requiring long-term stability.
Availability
BZY55B13 RBG is available at Aetrix Electronics and suitable for DC/DC converter feedback references, low-voltage stabilizers, and adapter overvoltage clamping requiring stable component supply and RoHS-compliant sourcing.
Supply support for BZY55B13 RBG 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, computing, and consumer markets since 1979.
The BZY55B series belongs to TSC's precision Zener diode product line, engineered specifically for high-stability voltage reference and shunt regulation in space-constrained, thermally demanding SMT applications.
FAQ
What is the exact Zener voltage range and tolerance for BZY55B13 RBG?
The BZY55B13 RBG has a guaranteed Zener voltage range of 12.74 V to 13.26 V at 5 mA test current (IZT), corresponding to a nominal 13.00 V with ±2% tolerance per J-STD-201. This tolerance is verified under 10 ms pulse test conditions and applies across the full operating temperature range.
Does BZY55B13 RBG require moisture preconditioning before reflow soldering?
No, BZY55B13 RBG is rated at Moisture Sensitivity Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30 °C/60% RH and placed directly into reflow without baking or dry-pack handling-reducing manufacturing overhead and preventing moisture-induced popcorning.
What is the maximum reverse leakage current for BZY55B13 RBG, and at what voltage is it specified?
The BZY55B13 RBG exhibits a maximum reverse leakage current of 0.1 µA at VR = 10.0 V, measured at TA = 25 °C. This low leakage supports high-impedance reference nodes and extends battery life in always-on monitoring circuits.
Can BZY55B13 RBG be used in place of older through-hole Zener diodes like 1N4743A?
While BZY55B13 RBG provides equivalent 13 V regulation, it is not a drop-in replacement for 1N4743A due to its 0805 SMT package, lower power rating (500 mW vs. 1 W), and different thermal profile. Board redesign and power derating analysis are required before substitution.
What is the junction-to-ambient thermal resistance (RθJA) of BZY55B13 RBG, and how does it affect layout?
The BZY55B13 RBG has a junction-to-ambient thermal resistance of 300 °C/W under standard JEDEC test conditions. To maintain TJ ≤ 150 °C at full 500 mW dissipation, PCB copper area and airflow must be designed to limit ambient temperature rise to ≤50 °C-typically achieved with ≥25 mm² of 1 oz copper connected to both terminals.
BZY55B13 RBG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- 0805 (2012 Metric)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 13 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 26 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 10 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 0805
BZY55B13 RBG FAQ
1.How can I place an order for BZY55B13 RBG through Aetrix?
Please submit a Request for Quotation (RFQ) for BZY55B13 RBG 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 BZY55B13 RBG reliable?
The price and inventory of BZY55B13 RBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZY55B13 RBG is usually 5 days.
3.What payment methods are accepted for BZY55B13 RBG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZY55B13 RBG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZY55B13 RBG?
BZY55B13 RBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZY55B13 RBG 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 BZY55B13 RBG?
For technical support, including BZY55B13 RBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZY55B13 RBG requirements.
6.How does Aetrix verify that BZY55B13 RBG is sourced from the original manufacturer or authorized distributors?
All BZY55B13 RBG 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 BZY55B13 RBG meets industry standards.
7.What is the process for return or replacement of BZY55B13 RBG?
All BZY55B13 RBG units undergo pre-shipment inspection (PSI). If there is an issue with BZY55B13 RBG, 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 BZY55B13 RBG part is unused and in its original packaging.
Return procedure for BZY55B13 RBG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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