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Vishay General Semiconductor - Diodes Division BZM55C15-TR
- Part No.:
- BZM55C15-TR
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Zener Diodes
- Package:
- 2-SMD, No Lead
- Datasheet:
-
BZM55C15-TR.pdf
- Description:
- DIODE ZENER 15V 500MW MICROMELF
- Quantity:
- Payment:
- Shipping:
Inventory:30,325
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Product details
Overview
BZM55C15-TR from Vishay Semiconductors is a surface-mount silicon Zener diode in MicroMELF (SOD-80) package, designed for precision voltage regulation and reference applications at 15 V nominal Zener voltage with ±0.6 V tolerance, 5 mA test current, and 11 Ω dynamic resistance. It delivers stable clamping in low-power analog circuits, power supply feedback loops, and overvoltage protection for microcontroller I/O.
For engineers reviewing the BZM55C15-TR datasheet, BZM55C15-TR pinout, BZM55C15-TR application, or BZM55C15-TR equivalent, key selection criteria include its 15 V Zener voltage tolerance (13.8–15.6 V), low 0.1 μA reverse leakage at VR = 12 V, ±0.11 %/K temperature coefficient, 500 mW power rating, and MicroMELF hermetic sealing for high reliability in industrial and automotive environments.
Technical Context
The BZM55C15-TR operates as a single-junction, silicon-based Zener diode with sharp reverse breakdown and low noise characteristics. Its Zener voltage is specified at 5 mA test current (IZT1), with dynamic resistance measured at 1 kHz and junction temperature maintained at 25 °C.
It exhibits a positive temperature coefficient of +0.03 %/K at 25 °C and +0.11 %/K at 125 °C, indicating predictable voltage drift over temperature. Thermal resistance is rated at RthJL = 300 K/W (junction-to-lead) and RthJA = 500 K/W (junction-to-ambient on epoxy-glass PCB), supporting operation up to 175 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13.8–15.6 V at IZT = 5 mA - defines precise regulation window for 15 V reference designs |
| Dynamic Resistance (ZZ) | 11 Ω at IZT = 5 mA - ensures minimal output voltage variation under load transients |
| Reverse Leakage (IR) | < 0.1 μA at VR = 12 V - enables ultra-low quiescent current in battery-powered sensing nodes |
| Power Dissipation (Ptot) | 500 mW - supports continuous regulation in compact SMT layouts without forced cooling |
| Temperature Coefficient (TKVZ) | +0.03 %/K at 25 °C, +0.11 %/K at 125 °C - allows accurate thermal drift modeling in wide-temperature-range systems |
| Junction Temperature (Tj) | −65 to +175 °C - qualifies for under-hood automotive and industrial control environments |
| Package | MicroMELF (SOD-80) - hermetically sealed glass body with 1.8 mm diameter, enabling high reliability and moisture resistance |
Pinout & Package
MicroMELF (SOD-80) package: cylindrical glass body with axial leads, cathode identified by a dark band. Total weight ≈ 12 mg; UL 94 V-0 molding compound; MSL Level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; reverse-biased during regulation |
| Cathode | Zener breakdown terminal / regulated output node | Connected to input voltage source; maintains stable 15 V relative to anode during reverse conduction |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter drift in humid or harsh environments |
| Very sharp reverse characteristic | Enables clean, low-hysteresis clamping critical for precision analog comparators and reference buffers |
| Low reverse leakage current | < 0.1 μA at 12 V ensures negligible loading on high-impedance sensor outputs and voltage dividers |
| High stability over time and temperature | Specified TKVZ and tight VZ tolerance support ±0.5 % system-level voltage reference accuracy |
| Low noise performance | Minimizes added jitter in timing-critical bias networks and low-noise amplifier references |
Applications
| Industrial Sensor Signal Conditioning | Automotive Body Control Module (BCM) Reference |
|---|---|
Use Scenario: Stabilizing excitation voltage for resistive temperature detectors (RTDs) in factory automation PLCs. IC Role / Device Role / Timing Role: Zener reference diode providing fixed 15 V bias to bridge circuitry and ADC front-end. Use Value: Maintains <±0.5 % reference accuracy across −40 to +125 °C ambient, ensuring sub-0.1 °C temperature resolution. |
Use Scenario: Clamping CAN transceiver supply rail against load-dump transients in vehicle door modules. IC Role / Device Role / Timing Role: Overvoltage protection device shunting excess energy above 15 V to ground. Use Value: Responds within nanoseconds to 12 V system spikes, limiting rail excursion to ≤15.6 V and preventing IC latch-up. |
| Programmable Logic Controller (PLC) Input Protection | Medical Infusion Pump Power Monitoring |
Use Scenario: Protecting 24 V digital input channels from ESD and field-wiring surges. IC Role / Device Role / Timing Role: Primary Zener clamp absorbing transient energy before reaching optocoupler input stage. Use Value: Withstands repeated 1 kV ESD events per IEC 61000-4-2 while maintaining VZ stability after 1000 cycles. |
Use Scenario: Providing stable 15 V reference for battery voltage monitoring ADC in portable infusion devices. IC Role / Device Role / Timing Role: Low-leakage voltage reference enabling accurate state-of-charge estimation over 5-year product lifetime. Use Value: <0.1 μA reverse current preserves battery life in sleep mode; hermetic seal prevents electrolyte-induced parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZM55B15-TR | Tighter VZ tolerance: 14.7–15.3 V (±0.3 V) vs. BZM55C15-TR's 13.8–15.6 V (±0.9 V); same package and thermal specs | Better suited for high-accuracy references where ±2 % regulation is insufficient | Select BZM55B15-TR when absolute voltage precision outweighs cost sensitivity |
| MMBZ5245B-7-F | SOT-23 package (not hermetic); VZ = 15 V ±5 %; higher IR = 0.1 μA max at 12 V; RthJA = 350 K/W | Lower profile and board space usage, but reduced reliability in humid/high-reliability environments | Choose MMBZ5245B-7-F only for cost-driven consumer applications with no hermetic requirement |
Compared with BZM55C15-TR, BZM55B15-TR offers tighter voltage tolerance at identical thermal and packaging performance, while MMBZ5245B-7-F trades hermetic reliability and temperature stability for smaller footprint and lower unit cost-making BZM55C15-TR optimal for industrial-grade voltage references requiring long-term stability and environmental resilience.
Availability
BZM55C15-TR is available at Aetrix Electronics and suitable for industrial sensor conditioning, automotive BCM reference circuits, and medical device power monitoring requiring stable component supply, long-lifecycle availability, and traceable sourcing.
Supply support for BZM55C15-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, sensors, and passive elements with emphasis on reliability, precision, and ruggedized packaging.
The BZM55-Series targets high-stability voltage reference and protection applications in automotive, industrial, and medical systems where hermetic sealing, low noise, and tight parametric consistency are mandatory.
FAQ
What is the Zener voltage tolerance of the BZM55C15-TR?
The BZM55C15-TR has a nominal Zener voltage of 15 V with a minimum of 13.8 V and maximum of 15.6 V at 5 mA test current, corresponding to a ±0.9 V (±6 %) tolerance band. This is defined in the "C" grade variant per Vishay Document 85597 Rev. 2.3.
Does the BZM55C15-TR have a specified reverse leakage current?
Yes - the BZM55C15-TR specifies reverse leakage current IR < 0.1 μA at VR = 12 V and Tj = 25 °C. This ultra-low leakage supports high-impedance bias networks and extends battery life in always-on monitoring circuits using the BZM55C15-TR.
What is the thermal resistance of the BZM55C15-TR?
The BZM55C15-TR has RthJL = 300 K/W (junction-to-lead) and RthJA = 500 K/W (junction-to-ambient on epoxy-glass PCB per Fig. 8). These values define safe operating limits for continuous 500 mW dissipation and must be applied with appropriate PCB copper area per Vishay's layout recommendations.
Is the BZM55C15-TR RoHS-compliant and halogen-free?
Yes - the BZM55C15-TR complies with RoHS Directive 2011/65/EU and is halogen-free per Vishay's material categorization standard (Document 99912). The MicroMELF package uses UL 94 V-0 compliant molding compound and lead-free terminations.
Can the BZM55C15-TR be used in reflow soldering processes?
Yes - the BZM55C15-TR is qualified for lead-free reflow soldering with peak temperature up to 260 °C (per J-STD-020 MSL Level 1). Footprint recommendations (2.4 × 0.8 mm pads) and thermal profiles are provided in Vishay Document 85597 Rev. 2.3, Figure 9.
BZM55C15-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- BZM55
- Package/Case:
- 2-SMD, No Lead
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 15 V
- Tolerance:
- -
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 110 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 11 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- MicroMELF
BZM55C15-TR FAQ
1.How can I place an order for BZM55C15-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for BZM55C15-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 BZM55C15-TR reliable?
The price and inventory of BZM55C15-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZM55C15-TR is usually 5 days.
3.What payment methods are accepted for BZM55C15-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZM55C15-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZM55C15-TR?
BZM55C15-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZM55C15-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 BZM55C15-TR?
For technical support, including BZM55C15-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZM55C15-TR requirements.
6.How does Aetrix verify that BZM55C15-TR is sourced from the original manufacturer or authorized distributors?
All BZM55C15-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 BZM55C15-TR meets industry standards.
7.What is the process for return or replacement of BZM55C15-TR?
All BZM55C15-TR units undergo pre-shipment inspection (PSI). If there is an issue with BZM55C15-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 BZM55C15-TR part is unused and in its original packaging.
Return procedure for BZM55C15-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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