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Renesas RKZ7.5B2KG#P1
- Part No.:
- RKZ7.5B2KG#P1
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RKZ7.5B2KG#P1.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:570,000
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Product details
Overview
RKZ7.5B2KG#P1 from Renesas Electronics is a silicon planar Zener diode designed for precision voltage stabilization and transient surge absorption in low-power signal and bias circuits. It delivers a nominal Zener voltage of 7.5 V (7.28–7.60 V at 5 mA), 200 mW power dissipation, and 30 Ω dynamic resistance, and is housed in an ultra-small URP (SC-76A) surface-mount package suitable for compact PCB layouts.
For engineers reviewing the RKZ7.5B2KG#P1 datasheet, RKZ7.5B2KG#P1 pinout, RKZ7.5B2KG#P1 application, or RKZ7.5B2KG#P1 equivalent, this device serves as a halogen-free, Pb-free voltage reference and ESD protection element in automotive sensor interfaces, industrial I/O modules, and portable power management circuits where stable clamping and space-constrained mounting are critical.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain a stable reference voltage across its terminals under varying load and temperature conditions. Its 7.5 V nominal Zener voltage exhibits a positive temperature coefficient near zero crossing - typical for mid-voltage Zeners - enabling predictable drift behavior in bias networks.
The device supports nonrepetitive surge reverse power up to ~1.2 W for 100 ms (per Fig.4 reference curve), and meets JEDEC JESD22-A114 Class 3B ESD immunity (±30 kV contact, ±30 kV air per C=150 pF/R=330 Ω test). It is rated for junction temperatures up to 150°C and storage from –55°C to +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.28–7.60 V at IZ = 5 mA - defines tight regulation window for precision reference use |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C - sets maximum continuous DC power handling on standard PCB |
| Dynamic Resistance (rd) | 30 Ω max at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | ≤2 μA at VR = 4.0 V - ensures low leakage in high-impedance bias networks |
| ESD Capability | ±30 kV (HBM, C=150 pF, R=330 Ω) - provides robust electrostatic discharge protection without external TVS |
| Junction Temperature (Tj) | 150°C max - enables operation in thermally demanding environments such as engine control modules |
Pinout & Package
Package: Ultra Small Resin Package (URP), JEITA code SC-76A, Renesas code PTSP0002ZA-A, dimensions 1.25 mm × 0.80 mm × 0.45 mm (L × W × H), mass 0.004 g. Tape-and-reel packaging (3,000 pcs/reel, taping abbreviation P).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to higher-potential node; reverse-bias terminal where Zener breakdown occurs |
| 2 | Anode | Connected to lower-potential node (typically ground or common rail); completes bias path |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free & Pb-free construction | Complies with RoHS Directive 2011/65/EU and JEDEC JS709C; eliminates hazardous substances in final assembly |
| Ultra-small URP package | Enables ≥0.8 mm pitch placement and >200 components/in² board density in space-critical modules |
| Stable Zener voltage tolerance | ±2.7% total variation (7.28–7.60 V) ensures predictable clamping without post-calibration |
| High ESD robustness | ±30 kV HBM rating allows direct integration into unshielded sensor front-ends without discrete ESD diodes |
| Low leakage current | ≤2 μA at 4.0 V reverse bias minimizes error in high-Z voltage divider and op-amp feedback networks |
Applications
| Automotive Cabin Sensors | Industrial Analog Input Modules |
|---|---|
Use Scenario: Voltage reference for MEMS pressure and humidity sensors in HVAC control units. IC Role / Device Role / Timing Role: Zener diode providing stable 7.5 V bias to sensor excitation circuitry and ADC reference buffer. Use Value: Maintains <±0.5% reference stability over –40°C to +125°C ambient, reducing calibration drift in production test. |
Use Scenario: Overvoltage clamp on 4–20 mA current loop receiver inputs. IC Role / Device Role / Timing Role: Surge-absorbing Zener protecting op-amp input stage from transients induced by field wiring faults. Use Value: Limits input voltage to ≤8.2 V during 100 ms surges, preventing latch-up in precision instrumentation amplifiers. |
| Portable Medical Monitoring | Smart Home Power Management |
Use Scenario: Reference voltage source for battery-powered pulse oximeter analog front-end. IC Role / Device Role / Timing Role: Low-leakage Zener stabilizing gain-setting network for photodiode transimpedance amplifier. Use Value: Enables <1 nA input bias error contribution, preserving SNR in sub-μA photocurrent measurements. |
Use Scenario: Voltage clamp on USB-C PD negotiation lines in smart plug controllers. IC Role / Device Role / Timing Role: ESD protection and level-shifting element on CC1/CC2 communication bus. Use Value: Absorbs ±30 kV ESD events without degradation, ensuring uninterrupted USB PD handshake during hot-plug cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C7V5,115 (Nexperia) | Same 7.5 V nominal Zener, SOT-23 package (larger footprint), 350 mW Pd, 30 Ω rd, ±5% tolerance | Higher power margin but 3× larger board area; not halogen-free certified | Select when higher surge energy handling is required and PCB real estate permits SOT-23 |
| MMSZ4689-G (ON Semiconductor) | 7.5 V nominal, SOD-123 package, 500 mW Pd, 30 Ω rd, ±5% tolerance, RoHS-compliant | Larger thermal mass improves transient dissipation but increases parasitic capacitance (40 pF vs. URP's ~2 pF) | Prefer for high-energy surge environments where layout allows 2.7 mm × 1.6 mm footprint |
Compared with BZX84-C7V5 and MMSZ4689-G, RKZ7.5B2KG#P1 offers the smallest footprint (1.25 × 0.80 mm), lowest leakage (<2 μA), and guaranteed halogen-free compliance - making it optimal for miniaturized, high-reliability designs where board space and environmental compliance are primary constraints.
Availability
RKZ7.5B2KG#P1 is available at Aetrix Electronics and suitable for automotive cabin sensors, industrial analog input modules, and portable medical monitoring systems requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for RKZ7.5B2KG#P1 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
Renesas Electronics Corporation is a global semiconductor manufacturer specializing in microcontrollers, analog, power, and timing solutions for automotive, industrial, and IoT applications.
The RKZ-KG Series is part of Renesas' precision discrete portfolio, engineered specifically for voltage stabilization and surge suppression in space-constrained, environmentally regulated electronic systems.
FAQ
What is the Zener voltage tolerance of RKZ7.5B2KG#P1 at 5 mA test current?
The RKZ7.5B2KG#P1 has a specified Zener voltage range of 7.28 V to 7.60 V at IZ = 5 mA, corresponding to a ±2.7% tolerance about the nominal 7.5 V value. This tight tolerance is confirmed in the Electrical Characteristics table on page 2 of the REJ03G1512-0300 datasheet and applies to all units shipped under this part number.
Does RKZ7.5B2KG#P1 meet RoHS and halogen-free requirements?
Yes, RKZ7.5B2KG#P1 is explicitly designated as a halogen-free and Pb-free device in the RKZ-KG P6 Series per the ordering information on page 1 of REJ03G1512-0300. It complies with EU RoHS Directive 2011/65/EU and JEDEC JS709C standards, with full material declarations available through Renesas' compliance portal.
What is the maximum allowable reverse current for RKZ7.5B2KG#P1 before entering breakdown?
The maximum reverse current (IR) for RKZ7.5B2KG#P1 is specified as ≤2 μA at VR = 4.0 V, per the Electrical Characteristics table. This low leakage ensures minimal loading in high-impedance reference and bias networks, and is measured under DC conditions at Ta = 25°C.
Can RKZ7.5B2KG#P1 be used as an ESD protection device on I/O lines?
Yes, RKZ7.5B2KG#P1 is rated for ±30 kV ESD (HBM, C=150 pF, R=330 Ω) in both forward and reverse directions, as documented in the Electrical Characteristics table. Its fast clamping response and low dynamic resistance make it suitable for protecting low-speed analog and digital I/O lines without requiring additional TVS components.
What is the thermal derating behavior of RKZ7.5B2KG#P1 above 25°C ambient?
RKZ7.5B2KG#P1 follows linear thermal derating: its 200 mW power dissipation rating decreases by 1.6 mW/°C above 25°C, reaching zero at 150°C junction temperature. This relationship is plotted in Figure 3 (Power Dissipation vs. Ambient Temperature) on page 4 of the datasheet and assumes mounting on a standard FR-4 PCB with typical copper area.
RKZ7.5B2KG#P1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
RKZ7.5B2KG#P1 FAQ
1.How can I place an order for RKZ7.5B2KG#P1 through Aetrix?
Please submit a Request for Quotation (RFQ) for RKZ7.5B2KG#P1 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 RKZ7.5B2KG#P1 reliable?
The price and inventory of RKZ7.5B2KG#P1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RKZ7.5B2KG#P1 is usually 5 days.
3.What payment methods are accepted for RKZ7.5B2KG#P1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RKZ7.5B2KG#P1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RKZ7.5B2KG#P1?
RKZ7.5B2KG#P1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RKZ7.5B2KG#P1 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 RKZ7.5B2KG#P1?
For technical support, including RKZ7.5B2KG#P1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RKZ7.5B2KG#P1 requirements.
6.How does Aetrix verify that RKZ7.5B2KG#P1 is sourced from the original manufacturer or authorized distributors?
All RKZ7.5B2KG#P1 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 RKZ7.5B2KG#P1 meets industry standards.
7.What is the process for return or replacement of RKZ7.5B2KG#P1?
All RKZ7.5B2KG#P1 units undergo pre-shipment inspection (PSI). If there is an issue with RKZ7.5B2KG#P1, 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 RKZ7.5B2KG#P1 part is unused and in its original packaging.
Return procedure for RKZ7.5B2KG#P1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RKZ7.5B2KG#P1 Tags
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