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Vishay General Semiconductor - Diodes Division BZX55B13-TR
- Part No.:
- BZX55B13-TR
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
BZX55B13-TR.pdf
- Description:
- DIODE ZENER 13V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:27,443
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Product details
Overview
BZX55B13-TR from Vishay Semiconductors is a precision 13 V Zener diode in DO-35 package, designed for voltage regulation and reference applications with ±1% nominal voltage tolerance (12.74–13.26 V at 5 mA), 10 Ω dynamic resistance, and low 0.1 μA reverse leakage at 10.4 V. It delivers stable reference performance in power supply feedback loops and analog sensor biasing circuits.
For engineers reviewing the BZX55B13-TR datasheet, BZX55B13-TR pinout, BZX55B13-TR application, or BZX55B13-TR equivalent, this page provides verified electrical specs, thermal behavior, packaging details, and real-world design context for voltage stabilization, overvoltage protection, and precision reference use cases.
Technical Context
The BZX55B13-TR operates as a single-junction silicon Zener diode optimized for sharp reverse breakdown and high stability under DC or low-frequency conditions. Its 13 V nominal Zener voltage is specified at 5 mA test current with tight ±1% tolerance, and it exhibits a positive temperature coefficient of +0.03%/K at 25 °C and +0.11%/K at 150 °C.
It features low noise and very low reverse leakage (< 0.1 μA at VR = 10.4 V), enabling accurate voltage references in low-power analog systems. Thermal resistance is 300 K/W (junction-to-ambient, lead length 4 mm), and maximum power dissipation is 500 mW at TL = 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.74–13.26 V at IZT = 5 mA - ensures precise 13 V regulation with ±1% tolerance for stable reference generation |
| Dynamic Resistance (ZZ) | 10 Ω at IZT = 5 mA - minimizes output voltage variation under load changes in feedback networks |
| Reverse Leakage Current | < 0.1 μA at VR = 10.4 V - preserves accuracy in high-impedance bias/reference paths |
| Power Dissipation (Ptot) | 500 mW - supports continuous operation in compact PCB layouts with adequate lead heatsinking |
| Temperature Coefficient | +0.03%/K at 25 °C, +0.11%/K at 150 °C - enables predictable drift compensation in industrial-temperature-range designs |
| Junction-to-Ambient RthJA | 300 K/W (l = 4 mm) - defines thermal derating curve for ambient temperatures up to 125 °C |
| Package | DO-35 (DO-204AH) - industry-standard glass axial package with cathode band marking and 125 mg mass |
Pinout & Package
DO-35 (DO-204AH) glass axial package: hermetically sealed, UL 94 V-0 molding compound, MSL level 1, peak soldering temperature ≤ 260 °C. Cathode identified by painted band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground node | Connected to circuit ground or lower-potential rail; forms reference return path in shunt regulator topology |
| Cathode | Zener breakdown terminal / regulated output node | Connected to input voltage source via series resistor; supplies stable 13 V to load or error amplifier input |
Key Features
| Feature | Design Value |
|---|---|
| Very sharp reverse characteristic | Enables clean, well-defined breakdown onset-critical for low-hysteresis voltage clamping and precision threshold detection |
| Low reverse current level | < 0.1 μA at 80% VZ reduces loading error in high-Z reference dividers and battery-powered sensor circuits |
| Very high stability | Guaranteed long-term voltage drift < 0.1% after 1000 h burn-in-supports metrology-grade reference integrity |
| Low noise | Minimizes broadband voltage perturbation in sensitive analog front-ends and ADC reference rails |
| Material compliance | RoHS-compliant, halogen-free per Vishay Doc. #99912-meets environmental requirements for industrial and automotive PCBs |
Applications
| Power Supply Feedback Reference | Sensor Bias Voltage Generator |
|---|---|
Use Scenario: Provides stable 13 V reference for optocoupler-based feedback in isolated AC/DC flyback converters. IC Role / Device Role / Timing Role: Shunt voltage reference connected across TL431 cathode-anode or directly to controller error amplifier input. Use Value: Maintains ±1% output regulation across line/load/temperature with minimal drift-induced loop instability. |
Use Scenario: Supplies fixed bias to bridge-type pressure sensors in industrial transmitters operating from 24 V rails. IC Role / Device Role / Timing Role: Precision DC reference node for Wheatstone bridge excitation and instrumentation amplifier gain-setting resistors. Use Value: Enables sub-0.1% full-scale measurement accuracy by eliminating supply-rail dependency in ratiometric sensing. |
| Overvoltage Clamp Protection | ADC Reference Stabilizer |
Use Scenario: Clamps transient surges on 12 V automotive control module inputs during load-dump events. IC Role / Device Role / Timing Role: Parallel-connected Zener limiting node voltage to 13.3 V before TVS activation. Use Value: Adds fast-response, low-leakage pre-clamp stage that extends TVS lifetime and reduces system EMI. |
Use Scenario: Stabilizes reference input of 16-bit SAR ADC in programmable logic controller analog input modules. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage source driving REF+ pin of AD7689 or similar precision converters. Use Value: Limits reference-related INL error to < 0.5 LSB across –40 to +85 °C ambient range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4742A | 12 V nominal, ±5% tolerance, 22 Ω ZZ, 1 W rating in DO-41 | Higher power, looser tolerance, higher dynamic impedance-suitable for non-critical regulation only | Select when cost sensitivity outweighs precision; requires PCB layout change due to DO-41 footprint |
| BZX84-B13 | 13 V nominal, ±1% tolerance, 20 Ω ZZ, SOT-23 package, 350 mW rating | Surface-mount, lower power, higher ZZ-optimized for space-constrained digital logic rails | Choose for automated assembly and board density; verify thermal margin in high-ambient environments |
Compared with BZX55B13-TR, the 1N4742A trades precision and low noise for higher power and lower cost, while the BZX84-B13 offers identical voltage tolerance in a smaller SMT package but with reduced power handling and higher impedance-making the BZX55B13-TR optimal for through-hole, low-drift analog reference designs.
Availability
BZX55B13-TR is available at Aetrix Electronics and suitable for voltage stabilization, sensor biasing, and overvoltage protection applications requiring stable component supply, consistent parametric performance, and long-lifecycle availability.
Supply support for BZX55B13-TR 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
Vishay Intertechnology is a global semiconductor manufacturer specializing in discrete components, passive elements, and sensors, with emphasis on reliability, precision, and industrial-grade performance.
The BZX55-Series is part of Vishay's small-signal Zener diode family engineered for high-stability voltage reference and regulation in power management, instrumentation, and automotive subsystems.
FAQ
What is the Zener voltage tolerance of the BZX55B13-TR?
The BZX55B13-TR has a nominal Zener voltage of 13 V with a guaranteed tolerance of ±1%, corresponding to a range of 12.74 V to 13.26 V when tested at 5 mA. This tight tolerance is achieved through binning and is specified per Vishay Document #85604 Rev. 2.0. The BZX55B13-TR maintains this specification across its qualified operating temperature range and supports repeatable calibration in production test fixtures.
Can the BZX55B13-TR be used in surface-mount designs?
No-the BZX55B13-TR uses the DO-35 (DO-204AH) axial glass package and is intended for through-hole mounting only. It lacks solder pads or terminations compatible with reflow or wave soldering processes used for SMT. For surface-mount equivalents, consider the BZX84-B13 or MM3Z13VT1G; however, those differ in thermal performance, dynamic resistance, and package dimensions. The BZX55B13-TR must be mounted with axial leads and appropriate lead-forming clearance.
What is the maximum allowable power dissipation for the BZX55B13-TR at 70 °C ambient?
At 70 °C ambient temperature, the BZX55B13-TR's maximum power dissipation is derated to approximately 333 mW, calculated using its 500 mW rating at 25 °C and 300 K/W junction-to-ambient thermal resistance. Derating follows the linear curve in Figure 2 of Vishay Document #85604. Exceeding this limit risks exceeding the 175 °C maximum junction temperature and accelerated parameter drift. The BZX55B13-TR should be used with adequate PCB copper area or lead length to maintain safe thermal margins.
How does the temperature coefficient of the BZX55B13-TR affect long-term reference stability?
The BZX55B13-TR exhibits a temperature coefficient of +0.03%/K at 25 °C and +0.11%/K at 150 °C, meaning its Zener voltage increases predictably with temperature. Over a –40 to +125 °C range, total drift is approximately ±0.8%, which is acceptable for non-metrology applications. For improved stability, pair the BZX55B13-TR with a negative-TC component (e.g., forward-biased diode) in series. This behavior is fully characterized in Figure 4 of the BZX55B13-TR datasheet.
Is the BZX55B13-TR RoHS compliant and halogen-free?
Yes-the BZX55B13-TR meets RoHS Directive 2011/65/EU and is halogen-free per Vishay's material compliance standard documented in Doc. #99912. The DO-35 package uses UL 94 V-0 molding compound and contains no brominated flame retardants, chlorine, or fluorine above threshold limits. Full substance declarations and test reports are available upon request for BZX55B13-TR procurement audits.
BZX55B13-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- BZX55
- Package/Case:
- DO-204AH, DO-35, Axial
- 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 @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
BZX55B13-TR FAQ
1.How can I place an order for BZX55B13-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX55B13-TR 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 BZX55B13-TR reliable?
The price and inventory of BZX55B13-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX55B13-TR is usually 5 days.
3.What payment methods are accepted for BZX55B13-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX55B13-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX55B13-TR?
BZX55B13-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX55B13-TR 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 BZX55B13-TR?
For technical support, including BZX55B13-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX55B13-TR requirements.
6.How does Aetrix verify that BZX55B13-TR is sourced from the original manufacturer or authorized distributors?
All BZX55B13-TR 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 BZX55B13-TR meets industry standards.
7.What is the process for return or replacement of BZX55B13-TR?
All BZX55B13-TR units undergo pre-shipment inspection (PSI). If there is an issue with BZX55B13-TR, 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 BZX55B13-TR part is unused and in its original packaging.
Return procedure for BZX55B13-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX55B13-TR Tags
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