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Taiwan Semiconductor Corporation BZD17C47PH
- Part No.:
- BZD17C47PH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZD17C47PH.pdf
- Description:
- DIODE ZENER 47V 1W SUB SMA
- Quantity:
- Payment:
- Shipping:
Inventory:9,749
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Product details
Overview
BZD17C47PH from Taiwan Semiconductor is a 0.8 W, 44–50 V Zener diode in Sub SMA package, AEC-Q101 qualified for automotive-grade voltage regulation and reference applications, with 24 Ω typical differential resistance, ±0.07 %/°C temperature coefficient, and 10 μA max reverse leakage at 36 V.
For engineers reviewing the BZD17C47PH datasheet, BZD17C47PH pinout, BZD17C47PH application, or BZD17C47PH equivalent, key selection criteria include zener voltage tolerance (±5.7%), thermal resistance (180 °C/W), surge capability (300 W, 100 μs), low-profile SMT compatibility, and moisture sensitivity level 1 compliance.
Technical Context
This single-die silicon Zener diode operates in reverse breakdown to maintain stable reference voltage under varying load and temperature conditions. Its 24–45 Ω differential resistance ensures tight regulation across 10 mA test current, while the ±0.07 %/°C temperature coefficient minimizes drift over –55 °C to +175 °C junction range.
The Sub SMA package enables high-power density mounting on 5 mm × 5 mm Cu pads, delivering 0.8 W continuous dissipation at 25 °C ambient and up to 2.3 W at 80 °C lead temperature. It meets JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1 handling requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 44–50 V @ IZT = 10 mA - defines stable regulation window for mid-range voltage references |
| Differential Resistance rdiff | 24 Ω typ, 45 Ω max - determines output impedance and load regulation error |
| Temp. Coefficient αZ | ±0.07 %/°C - enables <±1.2 % total drift over full –40 °C to +125 °C operating range |
| Reverse Leakage IR | ≤1.0 μA @ VR = 36 V - ensures minimal standby power loss in precision bias networks |
| Surge Power PZSM | 300 W (100 μs pulse) - supports transient overvoltage clamping without failure |
| Junction Temp. TJ | –55 to +175 °C - validated for under-hood automotive environments and industrial control enclosures |
| Package | Sub SMA - 2.7 × 1.9 × 1.1 mm footprint, MSL Level 1, RoHS/halogen-free compliant |
Pinout & Package
Sub SMA package: surface-mount, single-anode/single-cathode configuration with cathode band marking. Matte tin-plated leads, UL 94V-0 molding compound, polarity indicated by black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / reference ground node | Connected to system ground or low-side reference point in shunt regulator topology |
| Cathode | Zener breakdown terminal / regulated output node | Provides stable voltage relative to anode; connects to input of downstream circuitry or feedback node |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements (HTOL, TC, HTRB, etc.) |
| Low-profile Sub SMA | 1.1 mm height enables compact PCB layout in space-constrained modules |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/60 % RH - no bake required before reflow |
| 0.8 W continuous power | Sustains stable regulation under 10 mA load at 25 °C ambient without derating |
| Low leakage & high stability | ≤1.0 μA IR at 36 V and ±0.07 %/°C TC ensure long-term reference accuracy |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Analog Input Stage |
|---|---|
Use Scenario: Regulating 48 V supply rail for microcontroller I/O protection and sensor biasing in BCM subassemblies. IC Role / Device Role / Timing Role: Shunt voltage reference and overvoltage clamp protecting ADC front-end and CAN transceiver power domains. Use Value: Maintains 47 V reference with <±3 % deviation across –40 °C to +125 °C, enabling reliable fault detection without external regulators. | Use Scenario: Providing precise 47 V reference for 16-bit analog-to-digital conversion in 4–20 mA loop-powered sensors. IC Role / Device Role / Timing Role: Stable voltage reference source for op-amp biasing and DAC calibration circuits. Use Value: 24 Ω differential resistance and ±0.07 %/°C TC reduce measurement error to <0.05 % FS over temperature, meeting IEC 61000-4-5 surge immunity. |
| LED Driver Feedback Network | Telecom Power Supply Clamp |
Use Scenario: Setting constant-current threshold in buck-based LED drivers for commercial lighting systems. IC Role / Device Role / Timing Role: Zener reference in current-sense amplifier feedback path to define LED string current. Use Value: Tight 44–50 V tolerance and low 10 μA leakage enable ±1.5 % current accuracy across line and load variations. | Use Scenario: Transient voltage suppression on 48 V telecom DC distribution bus during lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response clamping device absorbing 300 W pulses per IEC 61000-4-5 Level 4. Use Value: 100 μs surge rating and 175 °C junction limit allow repeated clamping without degradation in outdoor base station cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics BZX84-C47 | 0.3 W rating, SOT-23 package, 45.6–49.4 V VZ, higher rdiff (70 Ω) | Limited to low-power portable electronics; insufficient for automotive surge duty | Select for cost-sensitive consumer designs where 0.8 W dissipation and AEC-Q101 are not required |
| Vishay NZX47C | 0.5 W, DO-35 glass package, 44.7–49.3 V VZ, MSL Level 3, no AEC-Q101 | Through-hole assembly only; unsuitable for automated SMT lines or high-reliability automotive use | Choose when legacy through-hole design or higher voltage tolerance (±4.7 %) is prioritized over SMT compatibility |
Compared with BZD17C47PH, BZX84-C47 offers lower cost but lacks automotive qualification and surge robustness, while NZX47C provides tighter VZ tolerance yet requires manual assembly and derates significantly above 70 °C ambient.
Availability
BZD17C47PH is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC analog input stages, LED driver feedback networks, and telecom power supply clamping requiring stable component supply with AEC-Q101 assurance and SMT manufacturability.
Supply support for BZD17C47PH 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, analog ICs, and protection components for automotive, industrial, and computing markets.
The BZD17C series is part of TSC's AEC-Q101-qualified Zener portfolio designed specifically for high-reliability voltage reference and clamping in harsh-environment automotive electronics and industrial control systems.
FAQ
What is the exact zener voltage range for BZD17C47PH at 10 mA test current?
The BZD17C47PH has a specified zener voltage range of 44 V minimum to 50 V maximum when tested at IZT = 10 mA and TA = 25 °C. This ±6.4 % tolerance reflects the device's factory binning and ensures predictable regulation behavior in production circuits using this exact part number.
Is BZD17C47PH suitable for automotive applications?
Yes, BZD17C47PH is AEC-Q101 qualified and rated for junction temperatures from –55 °C to +175 °C. Its Sub SMA package, MSL Level 1 handling, and validation across HTOL, temperature cycling, and HTRB tests confirm suitability for under-hood and chassis-mounted automotive electronics where reliability under thermal and mechanical stress is critical.
What is the maximum non-repetitive surge power rating for BZD17C47PH?
The BZD17C47PH supports a non-repetitive peak pulse power dissipation of 300 W for a 100 μs square wave pulse with TJ = 25 °C prior to surge. This rating enables effective transient voltage suppression in 48 V systems complying with ISO 7637-2 and IEC 61000-4-5 standards.
Does BZD17C47PH require special PCB layout considerations?
Yes - BZD17C47PH must be mounted on a 5 mm × 5 mm copper pad to achieve its rated 0.8 W power dissipation at 25 °C ambient. Thermal vias beneath the pad and adequate copper area are recommended to maintain junction temperature below 175 °C in high-ambient environments.
How does the temperature coefficient affect BZD17C47PH performance in wide-temperature applications?
The BZD17C47PH exhibits a temperature coefficient of ±0.07 %/°C, meaning its zener voltage shifts by approximately ±35 mV per 10 °C change near 47 V. Over –40 °C to +125 °C, this results in <±1.2 % total drift - acceptable for most reference and clamping functions without active compensation.
BZD17C47PH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Voltage - Zener (Nom) (Vz):
- 47 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 45 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 36 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 200 mA
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Sub SMA
BZD17C47PH FAQ
1.How can I place an order for BZD17C47PH through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD17C47PH 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 BZD17C47PH reliable?
The price and inventory of BZD17C47PH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZD17C47PH is usually 5 days.
3.What payment methods are accepted for BZD17C47PH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD17C47PH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD17C47PH?
BZD17C47PH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD17C47PH 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 BZD17C47PH?
For technical support, including BZD17C47PH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD17C47PH requirements.
6.How does Aetrix verify that BZD17C47PH is sourced from the original manufacturer or authorized distributors?
All BZD17C47PH 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 BZD17C47PH meets industry standards.
7.What is the process for return or replacement of BZD17C47PH?
All BZD17C47PH units undergo pre-shipment inspection (PSI). If there is an issue with BZD17C47PH, 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 BZD17C47PH part is unused and in its original packaging.
Return procedure for BZD17C47PH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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