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Nexperia USA Inc. BZB84-B2V7-QR
- Part No.:
- BZB84-B2V7-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZB84-B2V7-QR.pdf
- Description:
- BZB84-B2V7-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,987
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Product details
Overview
BZB84-B2V7-Q from Nexperia is a dual Zener diode in SOT23 package with common-anode configuration, rated for 2.7 V nominal Zener voltage (±2 % tolerance), 300 mW total power dissipation, and AEC-Q101 qualification for automotive voltage regulation. It provides precise dual-voltage reference in compact space-constrained designs such as ECU power rail clamping and sensor biasing.
For engineers reviewing the BZB84-B2V7-Q datasheet, BZB84-B2V7-Q pinout, BZB84-B2V7-Q application, or BZB84-B2V7-Q equivalent, key selection criteria include its dual-common-anode topology, ±2 % Zener voltage tolerance at 5 mA, non-repetitive peak reverse power of 40 W, and thermal resistance of 100 K/W to solder point - all critical for automotive-grade transient suppression and dual-rail stabilization.
Technical Context
This dual Zener diode integrates two independent 2.7 V Zener elements sharing a common anode terminal (Pin 3), enabling simultaneous regulation of two separate low-voltage nodes from a single package. Its differential resistance is ≤600 Ω at IZ = 5 mA, and temperature coefficient is −3.5 to 0.0 mV/K across 25–150 °C.
The device operates within −55 °C to +150 °C ambient range, supports 200 mA forward current per diode, and delivers stable reverse breakdown with <1 μA leakage at VR = 1 V. Its SOT23 footprint ensures compatibility with high-density automotive PCB layouts while maintaining AEC-Q101 stress-test compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 2.65 V to 2.75 V at IZ = 5 mA - tight ±2 % tolerance enables accurate dual-rail voltage referencing |
| Total Power Dissipation | 300 mW at Tamb ≤ 25 °C - defines maximum continuous DC power handling on standard FR4 PCB |
| Non-repetitive Peak Reverse Power | 40 W for tp = 100 μs - supports transient surge suppression in automotive load-dump scenarios |
| Differential Resistance | ≤600 Ω at IZ = 5 mA - ensures minimal voltage shift under varying load current |
| Reverse Leakage Current | ≤1 μA at VR = 1 V - guarantees low standby power loss in always-on vehicle modules |
| Thermal Resistance j-to-sp | 100 K/W - enables effective heat transfer to PCB copper when pins 1 and 2 are soldered |
| Operating Temperature | −55 °C to +150 °C - meets under-hood automotive ambient requirements without derating |
Pinout & Package
SOT23 plastic surface-mount package: 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch, 3-terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | K1 (Cathode, Diode 1) | Connects to regulated node 1; reverse-biased during Zener operation |
| 2 | K2 (Cathode, Diode 2) | Connects to regulated node 2; independent control of second rail |
| 3 | CA (Common Anode) | Shared anode connection; ties both Zeners to same reference potential (e.g., ground or supply) |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-anode Zener topology | Enables independent regulation of two voltage rails using one footprint - reduces component count in multi-supply ECUs |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD testing - eliminates need for additional qualification effort |
| ±2 % Zener voltage tolerance | Ensures predictable clamping level across production lots - critical for meeting ISO 16750-2 pulse test thresholds |
| 40 W non-repetitive surge capability | Withstands ISO 7637-2 Pulse 1/2a/5a transients without failure - supports robust front-end protection |
| SOT23 package with 100 K/W Rth(j-sp) | Facilitates thermal coupling to PCB copper - maintains junction temperature below 150 °C under sustained 200 mA forward bias |
Applications
| Automotive ECU Power Rail Clamping | Engine Coolant Temperature Sensor Biasing |
|---|---|
Use Scenario: Protecting 3.3 V and 5 V microcontroller supply rails against load dump and alternator overshoot in engine control units. IC Role / Device Role / Timing Role: Dual Zener clamp limiting both rails to safe levels relative to common ground, preventing overvoltage damage to MCU I/O and peripherals. Use Value: Eliminates need for two discrete Zeners and associated routing; maintains <2.75 V clamping on each rail with matched thermal behavior. |
Use Scenario: Providing stable 2.7 V reference for Wheatstone bridge excitation in analog temperature sensors mounted near engine block. IC Role / Device Role / Timing Role: Precision voltage reference source with low tempco (−3.5 to 0.0 mV/K) ensuring consistent bridge output across −40 °C to +125 °C operating range. Use Value: Enables <±1.5 °C measurement accuracy without external trimming; common-anode layout simplifies PCB return path design. |
| Body Control Module LED Driver Feedback | Transmission Control Unit CAN Transceiver Bias |
Use Scenario: Regulating feedback voltage for constant-current LED drivers powering interior lighting in BCMs. IC Role / Device Role / Timing Role: Dual Zener sets upper and lower thresholds for PWM-controlled current regulation loop, improving dimming linearity. Use Value: Delivers matched 2.7 V references for hysteresis control with <0.1 V inter-diode mismatch - reduces LED brightness flicker. |
Use Scenario: Supplying clean, low-noise bias voltage to isolated CAN FD transceiver VIO and VCC pins in TCU applications. IC Role / Device Role / Timing Role: Dual-rail regulator stabilizing both logic-level and bus-level supplies, rejecting coupled noise from solenoid switching. Use Value: Maintains <50 mV ripple on both rails under 100 mA combined load - prevents CAN bit error rate degradation during gear shifts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5223BS | Single Zener (3.3 V), SOT23, ±5 % tolerance, 225 mW Ptot | Requires two devices for dual-rail use; higher voltage drift with temperature | Select only when single-rail regulation suffices and cost-per-Zener is prioritized over board area |
| Vishay SMBZ5223-E3/52 | Single Zener (3.3 V), SOD-123, ±5 %, 500 mW Ptot, no AEC-Q101 | Larger footprint; lacks automotive qualification and dual-element integration | Use only in non-automotive industrial systems where surge rating >40 W is required |
Compared with MMBZ5223BS and SMBZ5223-E3/52, BZB84-B2V7-Q uniquely delivers dual 2.7 V references in one AEC-Q101-qualified SOT23 package with tighter tolerance and matched thermal performance - essential for space- and reliability-critical automotive subsystems.
Availability
BZB84-B2V7-Q is available at Aetrix Electronics and suitable for automotive electronic control units, engine sensor interfaces, and body electronics requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZB84-B2V7-Q 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 leading Dutch semiconductor manufacturer specializing in high-volume, high-reliability discrete and logic devices for automotive, industrial, and consumer markets.
The BZB84-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for dual-rail voltage regulation and transient suppression in harsh automotive environments.
FAQ
What is the Zener test current for BZB84-B2V7-Q?
The specified Zener voltage of 2.65–2.75 V is measured at IZ = 5 mA, per Table 8 in the datasheet. This current ensures stable regulation while minimizing self-heating effects; operation at lower currents (e.g., 1 mA) increases differential resistance and reduces voltage accuracy.
Can BZB84-B2V7-Q be used in parallel for higher power handling?
No - the dual diodes share a common anode but have independent cathodes; paralleling multiple BZB84-B2V7-Q units is not recommended due to mismatched Zener voltages and thermal coupling issues. For higher power, use discrete high-power Zeners with forced-air cooling or active regulation.
Is the marking code 'VA%' unique to BZB84-B2V7-Q?
Yes - per Table 4, 'VA%' is the exclusive top-side marking for BZB84-B2V7-Q across all production lots. This code enables unambiguous identification on assembled PCBs and supports automated optical inspection during manufacturing.
Does BZB84-B2V7-Q support wave soldering?
Yes - Figure 13 provides the validated wave soldering footprint for SOT23, specifying 1.4 mm pad width and 2.2 mm spacing. The device withstands standard wave profiles per J-STD-020, with peak temperature ≤260 °C for ≤10 seconds and thermal shock limited to ΔT ≤ 100 °C/s.
BZB84-B2V7-QR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZB84-Q
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Configuration:
- 1 Pair Common Anode
- Voltage - Zener (Nom) (Vz):
- 2.7 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 20 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZB84-B2V7-QR FAQ
1.How can I place an order for BZB84-B2V7-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for BZB84-B2V7-QR 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 BZB84-B2V7-QR reliable?
The price and inventory of BZB84-B2V7-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZB84-B2V7-QR is usually 5 days.
3.What payment methods are accepted for BZB84-B2V7-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZB84-B2V7-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZB84-B2V7-QR?
BZB84-B2V7-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZB84-B2V7-QR 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 BZB84-B2V7-QR?
For technical support, including BZB84-B2V7-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZB84-B2V7-QR requirements.
6.How does Aetrix verify that BZB84-B2V7-QR is sourced from the original manufacturer or authorized distributors?
All BZB84-B2V7-QR 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 BZB84-B2V7-QR meets industry standards.
7.What is the process for return or replacement of BZB84-B2V7-QR?
All BZB84-B2V7-QR units undergo pre-shipment inspection (PSI). If there is an issue with BZB84-B2V7-QR, 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 BZB84-B2V7-QR part is unused and in its original packaging.
Return procedure for BZB84-B2V7-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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