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Nexperia USA Inc. PZU84-B7V5-QR
- Part No.:
- PZU84-B7V5-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PZU84-B7V5-QR.pdf
- Description:
- DIODE ZENER 7.44V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,635
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Product details
Overview
PZU84-B7V5-QR from Nexperia is a 7.5 V ±2 % tolerance Zener voltage regulator diode in SOT23 package, designed for precision voltage reference and overvoltage protection in automotive power rails. It delivers 60 Ω differential resistance at 5 mA, 4 mV/K temperature coefficient, 170 pF capacitance at 1 MHz, and supports 200 mA forward current with 250 mW steady-state dissipation.
For engineers reviewing the PZU84-B7V5-QR datasheet, PZU84-B7V5-QR pinout, PZU84-B7V5-QR application, or PZU84-B7V5-QR equivalent, this device is selected for stable low-current regulation, ESD-robust clamping in infotainment power supplies, and AEC-Q101-compliant voltage referencing in engine control modules.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable 7.5 V reference across load and line variations. Its hard breakdown knee and low leakage (≤0.5 μA at VR = 5 V) ensure minimal quiescent current draw in always-on circuits.
The device features intentional thermal design: junction-to-solder-point thermal resistance is 330 K/W, enabling reliable operation up to 150 °C junction temperature under pulsed surge conditions (40 W non-repetitive peak reverse power at 100 μs).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.06 V to 7.84 V at IZ = 5 mA - defines tight regulation window for 7.5 V nominal rail |
| Differential Resistance (rdif) | 60 Ω max at IZ = 5 mA - ensures minimal output voltage shift under load transients |
| Temperature Coefficient (SZ) | +2.5 mV/K to +5.3 mV/K - enables predictable drift compensation in wide-temperature automotive environments |
| Reverse Current (IR) | ≤0.5 μA at VR = 5 V - guarantees ultra-low standby power in battery-sensitive systems |
| Capacitance (Cd) | 170 pF at f = 1 MHz, VR = 0 V - limits high-frequency noise coupling in signal-path references |
| Total Power Dissipation (Ptot) | 250 mW on FR4 PCB - sets maximum continuous DC power handling under standard mounting |
| Non-repetitive Peak Power (PZSM) | 40 W at tp = 100 μs - provides transient surge immunity against ISO 7637-2 pulses |
Pinout & Package
Package: SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), qualified per AEC-Q101 for automotive use.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Anode connection | Forward-biased terminal; connects to lower-potential node in reverse-bias regulation configuration |
| 2 (n.c.) | Not connected | Internally isolated; no electrical function - must remain unconnected in PCB layout |
| 3 (Cathode) | Cathode connection | Reverse-bias terminal; ties to regulated voltage rail or clamping node in protection circuits |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables precise 7.5 V reference without post-production trimming in ADAS sensor supply rails |
| AEC-Q101 qualification | Validated for 150 °C junction operation and mechanical shock/vibration in powertrain ECUs |
| Hard breakdown knee | Ensures sharp turn-on at rated VZ, minimizing regulation hysteresis in feedback loops |
| Low dynamic impedance (60 Ω) | Reduces output ripple by >15 dB compared to ±5 % variants under 10 mA load steps |
| Optimized leakage profile | 0.5 μA max reverse current at 5 V allows <1 nW standby power in always-on CAN transceiver bias networks |
Applications
| Automotive Infotainment Power Rail | Engine Control Unit (ECU) Reference |
|---|---|
Use Scenario: Regulating 7.5 V supply for AM/FM tuner ICs and display backlight drivers in head units. IC Role / Device Role / Timing Role: Primary voltage reference and overvoltage clamp protecting downstream LDO inputs. Use Value: Tight ±2 % tolerance maintains tuner frequency stability across −40 °C to +125 °C ambient, while 40 W surge rating absorbs load-dump transients. |
Use Scenario: Providing stable 7.5 V reference for microcontroller ADC and analog sensor interfaces in gasoline direct injection controllers. IC Role / Device Role / Timing Role: Precision analog reference source with low temperature drift for 12-bit ADC conversion accuracy. Use Value: +2.5 to +5.3 mV/K coefficient enables predictable calibration offset correction; 170 pF capacitance avoids resonance with ECU board parasitics. |
| ADAS Camera Module Bias Network | Body Control Module (BCM) Wake-Up Circuit |
Use Scenario: Generating clean 7.5 V bias for CMOS image sensor analog front-end and ISP power domains. IC Role / Device Role / Timing Role: Low-noise voltage reference and ESD protection element integrated into camera flex cable interface. Use Value: 0.5 μA leakage ensures <100 nA total sleep current in parking-mode vision systems; hard knee prevents false wake-up from noise spikes. |
Use Scenario: Establishing threshold voltage for wake-up comparator monitoring LIN bus activity in door module electronics. IC Role / Device Role / Timing Role: Stable reference input for comparator hysteresis setting and brown-out detection. Use Value: 60 Ω rdif ensures <5 mV threshold shift across 100 μA–1 mA sensing current range, improving wake-up reliability over vehicle lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C7V5 | ±5 % tolerance, 100 Ω rdif, no AEC-Q101 qualification | Acceptable for non-automotive consumer power supplies only | Select only if cost sensitivity outweighs regulation accuracy and automotive compliance requirements |
| MMSZ5235B | ±5 % tolerance, 30 Ω rdif, 100 °C max Tj, TO-236AB package | Limited to under-hood ambient ≤105 °C; larger footprint reduces board density | Prefer when lower dynamic impedance is critical but AEC-Q101 and SOT23 size are not required |
Compared with BZX84-C7V5 and MMSZ5235B, PZU84-B7V5-QR uniquely combines AEC-Q101 qualification, ±2 % tolerance, and SOT23 form factor-enabling single-source compliance for automotive Tier 1 suppliers requiring zero requalification across platforms.
Availability
PZU84-B7V5-QR is available at Aetrix Electronics and suitable for automotive infotainment systems, engine control units, and ADAS camera modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for PZU84-B7V5-QR 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 semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and energy-efficient solutions.
The PZU84-Q series belongs to Nexperia's AEC-Q101-qualified Zener regulator portfolio, engineered specifically for robust voltage reference and transient protection in automotive power distribution networks.
FAQ
What is the maximum continuous reverse current the PZU84-B7V5-QR can sustain without degradation?
The device is rated for 200 mA forward current, but its reverse operation is defined by power dissipation limits. At 25 °C ambient on a standard FR4 PCB, sustained reverse current must be limited to ≤33 mA to stay within the 250 mW Ptot limit at 7.5 V. Derating is required above 25 °C per the 500 K/W junction-to-ambient thermal resistance.
Does the 'QR' suffix indicate tape-and-reel packaging or a specific quality grade?
The 'QR' suffix denotes Nexperia's automotive-grade packaging variant: 3,000-piece 8 mm tape-and-reel with humidity level 1 (dry pack), compliant with J-STD-020 moisture sensitivity requirements. It does not indicate a separate quality grade-the AEC-Q101 qualification applies to all PZU84-Q series devices regardless of reel suffix.
Can PZU84-B7V5-QR replace PZU84-C7V5-Q in an existing design?
No-PZU84-B7V5-QR (±2 %) and PZU84-C7V5-Q (±5 %) share identical package and pinout but differ in Zener voltage tolerance, differential resistance (60 Ω vs. 10 Ω), and leakage current (0.5 μA vs. 0.1 μA at 5 V). Substitution requires verification of system-level regulation accuracy and noise margin.
How does the 'n.c.' pin (Pin 2) affect PCB layout and thermal performance?
Pin 2 is internally unconnected and must remain floating-no solder mask opening or copper pour should contact it. Its presence does not degrade thermal performance; the 330 K/W junction-to-solder-point resistance is measured at the cathode tab (Pin 3), and thermal path relies solely on Pins 1 and 3.
PZU84-B7V5-QR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PZU84-Q
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 7.44 V
- Tolerance:
- ±2.15%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 500 mV
- 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
PZU84-B7V5-QR FAQ
1.How can I place an order for PZU84-B7V5-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PZU84-B7V5-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 PZU84-B7V5-QR reliable?
The price and inventory of PZU84-B7V5-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZU84-B7V5-QR is usually 5 days.
3.What payment methods are accepted for PZU84-B7V5-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZU84-B7V5-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PZU84-B7V5-QR?
PZU84-B7V5-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PZU84-B7V5-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 PZU84-B7V5-QR?
For technical support, including PZU84-B7V5-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZU84-B7V5-QR requirements.
6.How does Aetrix verify that PZU84-B7V5-QR is sourced from the original manufacturer or authorized distributors?
All PZU84-B7V5-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 PZU84-B7V5-QR meets industry standards.
7.What is the process for return or replacement of PZU84-B7V5-QR?
All PZU84-B7V5-QR units undergo pre-shipment inspection (PSI). If there is an issue with PZU84-B7V5-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 PZU84-B7V5-QR part is unused and in its original packaging.
Return procedure for PZU84-B7V5-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PZU84-B7V5-QR Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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