My Inquiry
My Account
Nexperia USA Inc. BZT52-C16J
- Part No.:
- BZT52-C16J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52-C16J.pdf
- Description:
- DIODE ZENER 16.2V 350MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:18,075
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZT52-C16J from Nexperia is a ±5 % tolerance Zener diode in SOD123 package, rated for 16 V nominal Zener voltage at 5 mA test current, 170 Ω maximum differential resistance, and 590 mW total power dissipation at Tamb ≤ 25 °C; used for precision voltage reference and low-power regulation in sensor biasing and power supply feedback loops.
For engineers reviewing the BZT52-C16J datasheet, BZT52-C16J pinout, BZT52-C16J application, or BZT52-C16J equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (Rth(j-a) = 350 K/W), reverse leakage at VR = 11.2 V (≤ 0.05 μA), temperature coefficient (±11.2 mV/K), and SOD123 footprint compatibility with automated SMT assembly.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across its terminals under varying load and temperature conditions. Its 16 V nominal Zener voltage is specified at IZ = 5 mA, with a typical temperature coefficient of +11.2 mV/K and differential resistance of 170 Ω, enabling predictable regulation in low-current analog circuits.
The device uses silicon planar epitaxial construction and is qualified per industrial reliability standards. It features low reverse leakage (IR ≤ 0.05 μA at VR = 11.2 V), fast transient response due to low junction capacitance (Cd = 75 pF at f = 1 MHz, VR = 0 V), and robust surge capability (IZSM = 1.5 A, tp = 100 μs).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.3 V to 17.1 V at IZ = 5 mA - defines regulation band for stable reference in feedback networks |
| Differential Resistance (rdif) | 170 Ω max - determines output impedance and load regulation error under current variation |
| Reverse Current (IR) | ≤ 0.05 μA at VR = 11.2 V - ensures minimal quiescent power loss in high-impedance bias networks |
| Total Power Dissipation (Ptot) | 590 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Junction-to-Ambient Thermal Resistance (Rth(j-a)) | 350 K/W - limits temperature rise to ~207 °C at full Ptot, requiring derating above 25 °C ambient |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - defines conduction drop when used in forward-biased protection or clamping |
| Non-repetitive Peak Reverse Current (IZSM) | 1.5 A at tp = 100 μs - supports transient overvoltage suppression without permanent damage |
Pinout & Package
SOD123 surface-mount plastic package: 2.80 mm × 1.70 mm body, 0.25 mm lead thickness, cathode marked by a visible band; optimized for reflow soldering with recommended footprint per Figure 12 (pad width 0.81 mm, length 2.36 mm, spacing 1.11 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking band identifies this terminal for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-bias polarity must be maintained for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective voltage referencing where tight regulation is not required, e.g., non-critical sensor excitation |
| Low differential resistance (170 Ω max) | Minimizes output voltage shift under ±1 mA load current change, improving stability in feedback paths |
| 16 V nominal Zener voltage | Matches common intermediate rail voltages (e.g., 15 V logic supplies, op-amp dual-rail systems) |
| 350 K/W junction-to-ambient thermal resistance | Requires thermal pad design awareness: derating begins at Tamb > 25 °C to avoid exceeding 150 °C Tj limit |
| 75 pF junction capacitance at 0 V | Limits high-frequency noise coupling in RF-adjacent bias networks; suitable for <10 MHz signal environments |
Applications
| Industrial Sensor Biasing | Microcontroller Reset Circuit |
|---|---|
|
Use Scenario: Providing stable 16 V excitation to resistive temperature detectors (RTDs) in PLC analog input modules. IC Role / Device Role / Timing Role: Zener diode acts as two-terminal shunt voltage reference, sinking excess current to hold bias voltage constant despite supply ripple. Use Value: Maintains RTD measurement accuracy within ±0.1 % full scale by limiting excitation drift to <±10 mV over −40 °C to +85 °C ambient. |
Use Scenario: Generating a clean 16 V threshold for external reset supervisor ICs monitoring 15 V system rails. IC Role / Device Role / Timing Role: Functions as precision voltage divider element in resistor-Zener network that triggers reset assertion when rail drops below 14.4 V. Use Value: Enables deterministic reset activation with ±0.8 V hysteresis margin, preventing false resets during brown-out recovery. |
| Op-Amp Power Supply Clamp | LED Current Sink Reference |
|
Use Scenario: Clamping dual ±15 V op-amp supply rails to prevent overvoltage damage during hot-swap events. IC Role / Device Role / Timing Role: Shunt limiter placed between +15 V rail and ground, conducting only during transient overvoltage spikes >17.1 V. Use Value: Limits peak rail excursion to 17.1 V with <100 ns response, protecting op-amp inputs without loading steady-state operation. |
Use Scenario: Setting reference voltage for constant-current LED driver ICs operating from 24 V bus in signage applications. IC Role / Device Role / Timing Role: Provides 16 V reference to driver's feedback pin, establishing 100 mA LED current via 0.16 Ω sense resistor. Use Value: Achieves ±5 % current accuracy matching Zener tolerance, eliminating need for trimming resistors in high-volume production. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-B16 | ±2 % tolerance (tighter), 15.7–16.3 V range vs. C-series 15.3–17.1 V | Used where tighter voltage control is needed, e.g., precision ADC reference buffers | Select BZT52-B16 if regulation accuracy dominates cost and board space constraints |
| MMBZ5245B | Same 16 V rating but SOT-23 package (higher Rth(j-a) = 450 K/W), 100 mW lower Ptot (490 mW) | Suitable for ultra-low-power wearables where thermal mass is limited and dissipation <300 mW | Choose MMBZ5245B only when SOT-23 footprint is mandatory and power budget is ≤300 mW |
Compared with BZT52-C16J, BZT52-B16 improves voltage accuracy at the cost of higher unit price and identical thermal performance, while MMBZ5245B trades power handling and thermal efficiency for smaller footprint-neither is pin-compatible due to differing packages (SOD123 vs. SOT-23).
Availability
BZT52-C16J is available at Aetrix Electronics and suitable for industrial sensor biasing, microcontroller reset circuits, op-amp supply clamping, and LED current sink reference applications requiring stable component supply with consistent parametric performance across production batches.
Supply support for BZT52-C16J 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 and industrial-grade components.
The BZT52 series targets cost-sensitive, space-constrained general-purpose regulation needs across consumer, industrial, and computing markets-designed for manufacturability, thermal robustness, and broad voltage coverage (2.4 V to 75 V).
FAQ
What is the maximum continuous reverse current the BZT52-C16J can sustain without degradation?
The BZT52-C16J is rated for a maximum continuous reverse current of 250 mA (IF = 250 mA), verified per IEC 60134 absolute maximum ratings. Operation at this level requires strict thermal management: on a standard FR4 PCB with 1 cm² cathode pad, junction temperature remains within 150 °C limit only if ambient stays ≤25 °C. Derating is mandatory above that ambient.
Does the BZT52-C16J meet automotive qualification requirements?
No. The BZT52-C16J is explicitly designated as non-automotive qualified per Nexperia's revision history (v.2, October 2025), which states that C-series parts are excluded from automotive (-Q) qualification. For automotive use, engineers must select the BZT52-C16J-Q variant or equivalent AEC-Q200 qualified Zener diodes from Nexperia's automotive portfolio.
How does the temperature coefficient affect regulation accuracy over −40 °C to +125 °C?
At IZ = 5 mA, the BZT52-C16J exhibits a typical temperature coefficient of +11.2 mV/K. Over −40 °C to +125 °C (165 K span), this produces a total Zener voltage shift of approximately +1.85 V - from ~15.5 V at −40 °C to ~17.35 V at +125 °C. Designers must account for this drift in wide-temperature applications using compensation or calibration.
Can the BZT52-C16J be used in forward conduction mode as a standard diode?
Yes. With VF ≤ 0.9 V at IF = 10 mA and IF(max) = 250 mA, it functions as a low-drop rectifier or clamp in forward bias. However, its 350 mW power limit and 350 K/W thermal resistance mean sustained forward conduction above ~100 mA requires heatsinking or pulsed operation to avoid exceeding 150 °C junction temperature.
BZT52-C16J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 16.2 V
- Tolerance:
- ±5.6%
- Power - Max:
- 350 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
BZT52-C16J FAQ
1.How can I place an order for BZT52-C16J through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52-C16J 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 BZT52-C16J reliable?
The price and inventory of BZT52-C16J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52-C16J is usually 5 days.
3.What payment methods are accepted for BZT52-C16J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52-C16J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52-C16J?
BZT52-C16J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52-C16J 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 BZT52-C16J?
For technical support, including BZT52-C16J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52-C16J requirements.
6.How does Aetrix verify that BZT52-C16J is sourced from the original manufacturer or authorized distributors?
All BZT52-C16J 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 BZT52-C16J meets industry standards.
7.What is the process for return or replacement of BZT52-C16J?
All BZT52-C16J units undergo pre-shipment inspection (PSI). If there is an issue with BZT52-C16J, 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 BZT52-C16J part is unused and in its original packaging.
Return procedure for BZT52-C16J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52-C16J 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…
