My Inquiry
My Account
Nexperia USA Inc. BZV49-C33,115
SOT89.jpg)
- Part No.:
- BZV49-C33,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-243AA
- Datasheet:
-
BZV49-C33,115.pdf
- Description:
- DIODE ZENER 33V 1W SOT89
- Quantity:
- Payment:
- Shipping:
Inventory:486
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZV49-C33,115 from Nexperia is a medium-power Zener voltage regulator diode in SOT89 package, designed for precision DC voltage reference and stabilization in power supply rails. It delivers a nominal working voltage of 33 V (min 31.0 V, max 35.0 V) at 2 mA test current, with differential resistance ≤35 Ω, temperature coefficient of +27.4 to +29.7 mV/K, and total power dissipation up to 1 W at 25 °C ambient.
For engineers reviewing the BZV49-C33,115 datasheet, BZV49-C33,115 pinout, BZV49-C33,115 application, or BZV49-C33,115 equivalent, this device serves as a stable shunt regulator in low-to-medium current bias networks, voltage clamping circuits, and overvoltage protection stages where ±5% tolerance and thermal stability across −65 °C to +150 °C are required.
Technical Context
The BZV49-C33,115 operates as a silicon planar Zener diode with controlled avalanche breakdown at 33 V, optimized for stable reverse-bias regulation under continuous DC or pulsed conditions. Its thermal resistance from junction to tie-point is 15 K/W, enabling effective heat transfer via the exposed collector pad in the SOT89 package.
It exhibits low dynamic impedance (≤35 Ω at IZtest = 2 mA), minimal reverse leakage (≤0.05 μA at VR = 25.1 V), and non-repetitive peak reverse power capability of 40 W for 100 μs pulses - supporting transient suppression in regulated power paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 33 V (min 31.0 V, max 35.0 V) - defines stable regulation point for 24–36 V system rails |
| Zener Test Current | 2 mA - standard bias condition for voltage specification and impedance measurement |
| Differential Resistance | ≤35 Ω - ensures <1% output voltage shift per 0.7 mA load variation near regulation point |
| Power Dissipation | 1 W at Tamb = 25 °C - supports continuous regulation in compact PCB layouts with ceramic substrate mounting |
| Temperature Coefficient | +27.4 to +29.7 mV/K - enables predictable voltage drift compensation in industrial temperature ranges |
| Reverse Leakage Current | ≤0.05 μA at 25.1 V - guarantees negligible quiescent current draw in high-impedance reference nodes |
| Package | SOT89 (SC-62) - 3-lead surface-mount package with exposed thermal pad for enhanced heat dissipation |
Pinout & Package
SOT89 plastic surface-mounted package with integrated thermal pad (collector pad) for efficient heat transfer; 3 leads, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | DC input node for reverse-bias configuration; connects to lower-potential side of regulated rail |
| 2 | Cathode | Regulated output node; ties to reference voltage point or feedback network input |
| 3 | Anode | Second anode terminal electrically connected to Pin 1 - provides dual-anode layout for mechanical stability and thermal symmetry |
Key Features
| Feature | Design Value |
|---|---|
| ±5% voltage tolerance (E24 range) | Enables interchangeability across 37 BZV49 variants without circuit redesign |
| Non-repetitive peak reverse power: 40 W | Supports surge immunity in 100 μs transients without degradation - critical for input-stage clamping |
| Low capacitance: 45 pF at 0 V | Minimizes high-frequency loading on reference nodes and preserves signal integrity in mixed-signal systems |
| Junction temperature range: −65 °C to +150 °C | Validates operation in automotive engine compartments and industrial control enclosures without derating |
Applications
| Industrial Power Supply Reference | Automotive Body Control Module |
|---|---|
|
Use Scenario: Stabilizing 33 V auxiliary rail in programmable logic controller (PLC) power distribution board. IC Role / Device Role / Timing Role: Shunt voltage reference for error amplifier feedback loop in isolated DC-DC converter. Use Value: Maintains ±1.5% output regulation across −40 °C to +85 °C ambient, reducing need for trimming resistors. |
Use Scenario: Overvoltage clamp on LIN bus transceiver supply line in door module ECU. IC Role / Device Role / Timing Role: Transient voltage suppressor protecting 3.3 V LDO input from load-dump spikes up to 40 V. Use Value: Limits clamping voltage to 35 V max during 100 μs surges, preventing LDO damage while drawing <0.1 μA at standby. |
| Consumer Audio Amplifier Bias Network | Medical Diagnostic Sensor Interface |
|
Use Scenario: Generating stable bias voltage for Class AB output stage in portable speaker amplifier. IC Role / Device Role / Timing Role: Precision DC reference for quiescent current setting in complementary transistor pair. Use Value: Delivers <0.5% long-term drift over 10,000 hours, ensuring consistent THD performance across product lifetime. |
Use Scenario: Providing excitation voltage for bridge-based pressure sensor in handheld ultrasound probe. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage source for Wheatstone bridge excitation. Use Value: Contributes <0.02% FS error budget due to <0.05 μA leakage and <35 Ω dynamic impedance at 2 mA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5265B,115 | Same 33 V nominal Zener voltage but SOT23 package; Ptot = 350 mW; rdif = 45 Ω | Limited to low-power biasing; unsuitable for >150 mA shunt loads or thermal cycling above 85 °C | Select when board space is constrained and power dissipation remains below 350 mW. |
| BZX84-C33,115 | SOT23 package; same 33 V rating; Ptot = 300 mW; rdif = 50 Ω; higher leakage (≤1 μA) | Lower thermal robustness and regulation accuracy; not recommended for industrial temperature gradients | Choose only for cost-sensitive consumer applications with ambient <60 °C and no surge requirements. |
Compared with MMBZ5265B,115 and BZX84-C33,115, the BZV49-C33,115 offers 2.9× higher power handling, 30% lower dynamic impedance, and SOT89 thermal pad support - making it the sole option among the three qualified for sustained 1 W regulation in automotive and industrial environments.
Availability
BZV49-C33,115 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, consumer audio amplifiers, and medical sensor interfaces requiring stable component supply with full traceability and lifecycle continuity.
Supply support for BZV49-C33,115 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 discrete, logic, and PowerMOS semiconductors, formed in 2017 from the former NXP Standard Products division, with focus on automotive, industrial, computing, and consumer markets.
The BZV49 series belongs to Nexperia's voltage regulator diode product line, engineered for reliable shunt regulation in space-constrained, thermally demanding applications where precision, stability, and surge resilience are critical.
FAQ
What is the maximum continuous reverse current the BZV49-C33,115 can sustain?
The BZV49-C33,115 has no specified continuous reverse current rating beyond its 1 W power limit. At 33 V nominal Zener voltage, this translates to a maximum continuous Zener current of approximately 30 mA (IZ = Ptot/VZ ≈ 1 W / 33 V). Derating is required above 25 °C ambient per Rth(j-a) = 125 K/W.
Can the BZV49-C33,115 be used in parallel for higher current handling?
No - Zener diodes exhibit negative temperature coefficients that cause current hogging when paralleled. Even matched units will thermally diverge, leading to premature failure of one device. For higher current regulation, use a series pass transistor with BZV49-C33,115 as reference.
Is the SOT89 package lead-free and RoHS compliant?
Yes - the BZV49-C33,115 is manufactured in accordance with Nexperia's lead-free and RoHS-compliant standards. The SOT89 package uses matte tin (Sn) termination finish and meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) for unlimited floor life at ≤30 °C/85% RH.
How does temperature affect the 33 V regulation voltage?
The BZV49-C33,115 has a positive temperature coefficient of +27.4 to +29.7 mV/K. This means its Zener voltage increases by ~28 mV per 1 K rise in junction temperature - resulting in ~2.8 V increase over a 100 K range (−50 °C to +50 °C junction). Circuit design must account for this drift in precision references.
BZV49-C33,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 33 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 23.1 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-89
BZV49-C33,115 FAQ
1.How can I place an order for BZV49-C33,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZV49-C33,115 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 BZV49-C33,115 reliable?
The price and inventory of BZV49-C33,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZV49-C33,115 is usually 5 days.
3.What payment methods are accepted for BZV49-C33,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZV49-C33,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZV49-C33,115?
BZV49-C33,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZV49-C33,115 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 BZV49-C33,115?
For technical support, including BZV49-C33,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZV49-C33,115 requirements.
6.How does Aetrix verify that BZV49-C33,115 is sourced from the original manufacturer or authorized distributors?
All BZV49-C33,115 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 BZV49-C33,115 meets industry standards.
7.What is the process for return or replacement of BZV49-C33,115?
All BZV49-C33,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZV49-C33,115, 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 BZV49-C33,115 part is unused and in its original packaging.
Return procedure for BZV49-C33,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZV49-C33,115 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
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…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
