Nexperia USA Inc. BZV90-C56,115
- Part No.:
- BZV90-C56,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BZV90-C56,115.pdf
- Description:
- DIODE ZENER 56V 1.5W SOT223
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
BZV90-C56,115 from Nexperia is a medium-power Zener voltage regulator diode in SOT223 package, rated for 56 V nominal working voltage (±5%), 1.5 W total power dissipation, 70 Ω typical differential resistance at 5 mA test current, and −0.3 mV/K temperature coefficient - used for precision DC voltage reference and overvoltage protection in industrial power supplies.
For engineers reviewing the BZV90-C56,115 datasheet, BZV90-C56,115 pinout, BZV90-C56,115 application, or BZV90-C56,115 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (83.3 K/W), non-repetitive peak reverse power (40 W), junction temperature limit (150 °C), and SOT223 thermal pad layout compatibility.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled VZ = 52–60 V at IZtest = 5 mA, exhibiting low dynamic impedance (70 Ω typ.) and stable temperature coefficient (−0.3 mV/K) across 25–150 °C. Its SOT223 package integrates a large copper collector pad to support 1.5 W continuous dissipation under defined PCB copper area (2 cm²).
The device meets IEC 60134 absolute maximum ratings, including non-repetitive peak reverse power of 40 W for 100 μs pulses and storage temperature range of −65 to +150 °C. Reverse leakage remains ≤0.05 μA at VR = 43 V, enabling high-impedance biasing in analog reference circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ (Nominal) | 56 V - precise DC reference voltage with ±5% tolerance (52–60 V range) at 5 mA test current |
| Ptot | 1500 mW - continuous power handling on FR4 PCB with 2 cm² double-sided copper area |
| rdif | 70 Ω (typ.) - low dynamic impedance ensures stable regulation under varying load currents |
| SZ | −0.3 mV/K - negative temperature coefficient enables predictable drift compensation in reference designs |
| Rth j-a | 83.3 K/W - thermal resistance defines junction-to-ambient rise per watt; critical for thermal design margin |
| IZSM | 39.2 A - non-repetitive surge capability at 100 μs pulse supports transient overvoltage clamping |
| Cd | 40 pF at 1 MHz / 0 V - low junction capacitance minimizes signal coupling in high-frequency bias networks |
Pinout & Package
SOT223 plastic surface-mount package with integrated thermal pad (lead 3), 4-terminal configuration optimized for heat dissipation and board-level reliability in high-power Zener applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Main anode connection; tied to lower-potential node in reverse-biased Zener operation |
| 2, 4 | Cathode | Parallel cathode terminals - provide low-inductance, high-current return path to regulated rail |
| 3 | Anode (Thermal Pad) | Exposed copper pad electrically connected to anode; primary thermal conduction path to PCB copper |
Key Features
| Feature | Design Value |
|---|---|
| E24 voltage grading | 56 V nominal in standardized ±5% tolerance series - simplifies BOM rationalization across 37 variants (2.4–75 V) |
| Non-repetitive surge rating | 40 W peak reverse power (100 μs square wave) - enables robust transient suppression without external crowbar |
| Low leakage at high VR | ≤0.05 μA at 43 V reverse bias - preserves accuracy in high-impedance voltage divider and sensing circuits |
| Thermally enhanced SOT223 | Collector pad (pin 3) directly bonded to anode - reduces thermal resistance by >30% vs. standard SOT23 |
Applications
| Industrial Power Supply Reference | Automotive ECU Voltage Clamp |
|---|---|
Use Scenario: Stable 56 V reference for feedback loop in isolated DC-DC converters powering PLC I/O modules. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference potential at error amplifier input. Use Value: Tight 5% VZ tolerance and low rdif maintain output regulation within ±1.5% over line/load/temperature. |
Use Scenario: Overvoltage protection on 48 V battery rail in commercial vehicle telematics control units. IC Role / Device Role / Timing Role: Standby shunt clamp activated during load-dump transients (ISO 7637-2 Pulse 5a). Use Value: 39.2 A non-repetitive surge current capability clamps spikes to <65 V without failure. |
| Test Equipment Bias Network | LED Driver Open-Circuit Protection |
Use Scenario: Precision biasing of op-amp input stages in portable multimeters requiring stable mid-rail references. IC Role / Device Role / Timing Role: Low-noise Zener source feeding high-impedance resistor dividers for ADC reference scaling. Use Value: 40 pF junction capacitance and <0.05 μA leakage prevent AC coupling and DC offset errors. |
Use Scenario: Fail-safe open-circuit protection in constant-current LED drivers for street lighting. IC Role / Device Role / Timing Role: Shunt regulator that activates when LED string opens, diverting current to prevent driver overvoltage. Use Value: −0.3 mV/K tempco matches LED forward voltage drift, maintaining safe clamping threshold across −40 to +125 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics BZX84-C56LT1G | 300 mW SOT23 package; 56 V ±5%; rdif = 90 Ω; Rth j-a = 350 K/W | Limited to low-power biasing; unsuitable for >100 mA regulation or surge clamping | Select when board space is constrained and thermal load <0.3 W; avoid in power supply feedback paths |
| Vishay BZX8456B-TP | 500 mW SOT23; 56 V ±5%; rdif = 75 Ω; Tj max = 150 °C; no thermal pad | Lower Ptot and higher thermal resistance restrict use to signal-level regulation only | Prefer for cost-sensitive consumer electronics where 1.5 W dissipation is unnecessary |
Compared with BZX84-C56LT1G and BZX8456B-TP, BZV90-C56,115 delivers 5× higher continuous power, 4× better thermal performance, and verified 40 W surge capability - making it the only option among the three qualified for industrial-grade power supply reference and clamping.
Availability
BZV90-C56,115 is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECU protection circuits, test equipment bias networks, and LED driver fail-safe systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZV90-C56,115 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
Nexperia is a global leader in high-volume discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.
The BZV90 series belongs to Nexperia's precision Zener diode portfolio, engineered for stable voltage reference and overvoltage protection in thermally demanding applications where SOT223 thermal performance is essential.
FAQ
What is the maximum continuous reverse current the BZV90-C56,115 can sustain at 25 °C ambient?
The device does not specify a maximum continuous reverse current independently; instead, its 1500 mW total power dissipation limits IZ to approximately 26.8 mA at 56 V (P = V × I). Derating is required above 25 °C per the 83.3 K/W thermal resistance - e.g., at 75 °C ambient, max IZ drops to ~18 mA to hold Tj ≤ 150 °C.
Can BZV90-C56,115 be used in parallel for higher power handling?
No - Zener diodes exhibit negative temperature coefficients and manufacturing spread, causing current hogging when paralleled. The datasheet does not recommend parallel operation. For higher power, use a single higher-rated device or switch to active regulation with a pass transistor and reference.
Is the SOT223 thermal pad (pin 3) electrically isolated?
No - pin 3 is internally connected to the anode (pins 1 and 3 share the same electrical node). This is confirmed in the pinning diagram (Fig.1) and package outline: "Plastic surface mounted package; collector pad for good heat transfer; 4 leads", where "collector pad" refers to the anode-side thermal pad in Zener construction.
How does the −0.3 mV/K temperature coefficient affect regulation accuracy over temperature?
At 56 V nominal, −0.3 mV/K translates to −0.00054 %/°C drift. Over a 125 °C range (−40 to +85 °C), total drift is ~−37.5 mV (−0.067%). This low drift enables stable reference performance without external compensation in most industrial applications.
BZV90-C56,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 56 V
- Tolerance:
- ±5%
- Power - Max:
- 1.5 W
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 39.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 50 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223
BZV90-C56,115 FAQ
1.How can I place an order for BZV90-C56,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV90-C56,115 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 BZV90-C56,115 reliable?
The price and inventory of BZV90-C56,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV90-C56,115 is usually 5 days.
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5.How can I obtain technical support or documentation for BZV90-C56,115?
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6.How does Aetrix verify that BZV90-C56,115 is sourced from the original manufacturer or authorized distributors?
All BZV90-C56,115 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 BZV90-C56,115 meets industry standards.
7.What is the process for return or replacement of BZV90-C56,115?
All BZV90-C56,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZV90-C56,115, 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 BZV90-C56,115 part is unused and in its original packaging.
Return procedure for BZV90-C56,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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