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Nexperia USA Inc. PDZ15B,135
- Part No.:
- PDZ15B,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ15B,135.pdf
- Description:
- DIODE ZENER 15V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:27,405
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Product details
Overview
PDZ15B,135 from Nexperia is a single silicon Zener diode designed for low-power voltage regulation and reference applications in surface-mounted circuits. It delivers a nominal Zener voltage of 15 V at 5 mA, with tight tolerance (±2 % typical), low dynamic impedance (80 Ω at IZ = 5 mA), and ultra-low reverse leakage (0.05 µA at VR = 11 V), housed in an SOD323 (SC-76) package.
For engineers reviewing the PDZ15B,135 datasheet, PDZ15B,135 pinout, PDZ15B,135 application, or PDZ15B,135 equivalent, this device is selected for precision biasing, overvoltage clamping in sensor interfaces, and low-current voltage references where compact size, thermal stability, and sharp breakdown knee are critical.
Technical Context
The PDZ15B,135 operates as a two-terminal voltage reference diode with avalanche breakdown mechanism, optimized for stable regulation at low currents (IZ = 5 mA). Its temperature coefficient is +11.4 mV/K - positive and well-characterized - enabling predictable drift compensation in mid-voltage reference designs.
It exhibits hard breakdown knee behavior and very low leakage (<0.05 µA), making it suitable for high-impedance nodes. Thermal resistance from junction to solder point is 130 K/W, supporting reliable operation on standard FR4 PCBs without heatsinking under ≤400 mW total power dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 14.34 V to 14.98 V at IZ = 5 mA - defines precise clamping threshold for 15 V nominal systems |
| Differential Resistance rdif | 80 Ω max at IZ = 5 mA - ensures minimal output voltage shift under load variation |
| Reverse Leakage IR | 0.05 µA max at VR = 11 V - preserves signal integrity in high-Z analog and sensor bias networks |
| Forward Voltage VF | 0.9 V max at IF = 10 mA - enables low-loss forward conduction during transient recovery or dual-mode use |
| Power Dissipation Ptot | 400 mW max at Tamb ≤ 25 °C - supports continuous operation in space-constrained SMD layouts |
| Thermal Resistance Rth(j-sp) | 130 K/W - allows direct thermal path to PCB copper, simplifying thermal design on standard FR4 |
| Temperature Coefficient SZ | +11.4 mV/K at IZ = 5 mA - enables predictable, linear VZ drift for compensated reference circuits |
Pinout & Package
PDZ15B,135 is packaged in the SOD323 (SC-76) surface-mount plastic case - measuring 1.35 mm × 0.8 mm × 0.45 mm - with cathode indicated by a marking bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked side) | Cathode (K) | Connected to regulated output node; reverse-biased terminal during Zener operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Sharp breakdown knee | Enables clean, repeatable voltage clamping without soft turn-on ambiguity in protection circuits |
| Low dynamic impedance (80 Ω) | Maintains <±10 mV regulation error across ±1 mA load current changes at 15 V |
| Ultra-low leakage (0.05 µA) | Minimizes error current in high-impedance op-amp feedback or precision divider networks |
| Positive tempco (+11.4 mV/K) | Allows pairing with negative-tempco components (e.g., resistors, BJTs) for zero-drift reference designs |
| SOD323 footprint compatibility | Supports automated placement and reflow on dense PCBs; matches JEDEC SC-76 standard land patterns |
Applications
| Industrial Sensor Biasing | USB Port Overvoltage Clamp |
|---|---|
|
Use Scenario: Providing stable 15 V bias to MEMS pressure sensor bridge excitation circuitry in factory automation modules. IC Role / Device Role / Timing Role: Zener reference diode establishing fixed excitation voltage independent of supply ripple. Use Value: 0.05 µA leakage prevents offset drift in picoamp-level bridge outputs; 80 Ω rdif holds excitation within ±0.5 mV under 100 µA load variation. |
Use Scenario: Clamping VBUS line against transient surges (>15 V) in USB 2.0 host ports on embedded gateways. IC Role / Device Role / Timing Role: Standby-mode shunt protector activated only during overvoltage events. Use Value: Hard breakdown knee ensures immediate clamping at 14.34 V, limiting peak stress to downstream USB PHY ICs without false triggering. |
| Low-Power RTOS Reference | Programmable Logic Supply Monitor |
|
Use Scenario: Generating accurate 15 V reference for ADC input scaling in battery-powered IoT edge nodes. IC Role / Device Role / Timing Role: Precision voltage reference source feeding resistor-divider network into SAR ADC reference pin. Use Value: +11.4 mV/K tempco enables software-based drift correction using onboard temperature sensor; ±2 % initial tolerance meets 12-bit ADC full-scale accuracy. |
Use Scenario: Monitoring 15 V FPGA auxiliary supply rail for brownout detection in industrial PLC backplanes. IC Role / Device Role / Timing Role: Threshold detector element feeding comparator input in discrete supervisor circuit. Use Value: Tight 14.34–14.98 V VZ window ensures reliable trip point discrimination between nominal (14.8 V) and fault (<14.2 V) conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C15 (ON Semiconductor) | DO-35 through-hole package; 5% tolerance; 100 Ω rdif; 5 µA IR at 12 V | Requires manual or wave-solder assembly; higher leakage limits use in ultra-low-power sensor nodes | Select when legacy through-hole layout or cost-sensitive non-SMD production is required |
| MMSZ5245B (Diodes Inc.) | SOD-123 package; same 15 V nominal; 5% tolerance; 17 Ω rdif; 0.1 µA IR at 12 V | Smaller rdif improves regulation but slightly higher leakage vs. PDZ15B,135's 0.05 µA | Select when tighter regulation under varying load is prioritized over absolute minimum leakage |
Compared with BZX55C15 and MMSZ5245B, PDZ15B,135 offers superior leakage performance and tighter tolerance in the smallest SOD323 footprint - ideal for modern high-density, low-power designs where board space and signal fidelity are constrained.
Availability
PDZ15B,135 is available at Aetrix Electronics and suitable for industrial sensor biasing, USB port protection, low-power ADC reference, and FPGA supply monitoring requiring stable component supply and consistent parametric performance across production batches.
Supply support for PDZ15B,135 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 global semiconductor manufacturer specializing in high-performance, energy-efficient logic, analog, and discrete components for automotive, industrial, and consumer markets.
PDZ15B,135 belongs to the PDZ-B series of low-power Zener diodes engineered for precision voltage regulation in space-constrained SMD applications - emphasizing tight tolerance, low leakage, and thermal stability in mass-produced electronics.
FAQ
What is the maximum continuous reverse current the PDZ15B,135 can handle before degradation?
The PDZ15B,135 has a non-repetitive peak reverse current rating of 2.0 A for 100 µs pulses at 25 °C ambient, but its continuous Zener current is limited by power dissipation: at 25 °C, IZ(max) ≈ 26.7 mA (400 mW ÷ 15 V). Derating applies above 25 °C per the 130 K/W junction-to-solder-point thermal resistance.
Does the PDZ15B,135 support bidirectional ESD protection?
No - PDZ15B,135 is a unidirectional Zener diode configured for reverse-bias regulation only. Its forward voltage is 0.9 V at 10 mA, but it lacks symmetric clamping capability. For bidirectional ESD protection, dedicated TVS diodes such as PESD5V0S1BA should be used instead.
How does the +11.4 mV/K temperature coefficient affect long-term reference stability?
The +11.4 mV/K coefficient causes VZ to increase ~171 mV over a 15 K ambient rise (e.g., 25 °C → 40 °C). In precision applications, this drift can be compensated via resistor networks or digital calibration using onboard temperature sensing - a known design trade-off accepted for its low leakage and sharp knee.
Can PDZ15B,135 be used in place of PDZ15B without the ,135 suffix?
Yes - the ",135" suffix denotes tape-and-reel packaging per EIA-481-D standard (135 mm reel width), not a functional variant. Electrically and mechanically, PDZ15B,135 is identical to PDZ15B in SOD323 package; only packaging format differs for automated assembly compatibility.
PDZ15B,135 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PDZ-B
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 15 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
PDZ15B,135 FAQ
1.How can I place an order for PDZ15B,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ15B,135 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 PDZ15B,135 reliable?
The price and inventory of PDZ15B,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ15B,135 is usually 5 days.
3.What payment methods are accepted for PDZ15B,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ15B,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ15B,135?
PDZ15B,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ15B,135 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 PDZ15B,135?
For technical support, including PDZ15B,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ15B,135 requirements.
6.How does Aetrix verify that PDZ15B,135 is sourced from the original manufacturer or authorized distributors?
All PDZ15B,135 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 PDZ15B,135 meets industry standards.
7.What is the process for return or replacement of PDZ15B,135?
All PDZ15B,135 units undergo pre-shipment inspection (PSI). If there is an issue with PDZ15B,135, 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 PDZ15B,135 part is unused and in its original packaging.
Return procedure for PDZ15B,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDZ15B,135 Tags
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