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Taiwan Semiconductor Corporation 1PGSMB5949H
- Part No.:
- 1PGSMB5949H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
1PGSMB5949H.pdf
- Description:
- DIODE ZENER 100V 3W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,852
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Product details
Overview
1PGSMB5949H from Taiwan Semiconductor is a surface-mount silicon Zener diode with a nominal zener voltage of 100 V (min 95 V, max 105 V), 3 W total power dissipation, and DO-214AA (SMB) package. It delivers 3.7 Ω dynamic impedance at 250 mA test current, operates from −55 °C to +175 °C junction temperature, and is AEC-Q101 qualified for automotive voltage regulation and reference applications.
For engineers reviewing the 1PGSMB5949H datasheet, 1PGSMB5949H pinout, 1PGSMB5949H application, or 1PGSMB5949H equivalent, key selection criteria include its 100 V nominal zener voltage tolerance (±5%), low inductance SMB package, moisture sensitivity level 1 rating, and verified thermal resistance (RθJA = 59 °C/W on 10 mm × 10 mm Cu pad).
Technical Context
The 1PGSMB5949H functions as a precision voltage reference and overvoltage clamp in DC power rails, leveraging photo-glass passivated junction technology for stable breakdown characteristics across temperature. Its single-die configuration and matte tin-plated leads ensure compatibility with automated SMT placement and J-STD-002 solderability requirements.
Designed for high-reliability environments, it meets AEC-Q101 stress testing standards and exhibits low leakage current (≤1 μA at 76 V reverse bias) and controlled zener impedance (3100 Ω at knee current). Thermal performance is characterized with RθJL = 21 °C/W and RθJC = 23 °C/W under defined PCB mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ (Nominal) | 100 V - precise DC reference voltage with ±5% tolerance (95–105 V range) |
| Ptot | 3 W - maximum continuous power dissipation at TL = 75 °C, derates linearly above |
| IZT | 250 mA - test current at which VZ and ZZT are specified |
| ZZT | 3.7 Ω - dynamic impedance at 250 mA, critical for regulation stability under load variation |
| TJ max | +175 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 59 °C/W - junction-to-ambient thermal resistance on standard 10 mm × 10 mm Cu pad PCB |
| Package | DO-214AA (SMB) - industry-standard surface-mount outline with cathode band polarity marking |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, polarity indicated by cathode band, weight ≈ 0.100 g, UL 94V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-voltage side | Connected to circuit ground or lower potential node during reverse-bias regulation |
| Cathode | Zener breakdown terminal / high-voltage side | Connected to regulated rail; voltage clamping occurs between cathode and anode when reverse biased ≥95 V |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Photo-glass passivated junction | Enhanced long-term stability and reduced parameter drift under thermal stress |
| Moisture sensitivity level 1 | No floor-life limitation or baking required before reflow soldering |
| Low inductance SMB package | Minimizes voltage overshoot during transient clamping in fast-switching circuits |
| Halogen-free construction | Complies with IEC 61249-2-21, supporting RoHS-compliant manufacturing |
Applications
| Automotive Voltage Reference | Industrial Power Supply Clamp |
|---|---|
Use Scenario: Stable 100 V reference in engine control unit (ECU) sensor biasing circuits. IC Role / Device Role / Timing Role: Zener diode providing precision DC reference for analog front-end comparators and ADC references. Use Value: Maintains ±5% voltage accuracy across −40 °C to +125 °C ambient, meeting AEC-Q100 Grade 1 requirements. | Use Scenario: Overvoltage protection on 96 V DC bus in industrial PLC power modules. IC Role / Device Role / Timing Role: Shunt regulator clamping transient spikes above 105 V to protect downstream DC-DC converters. Use Value: Dissipates up to 3 W continuously with RθJA = 59 °C/W, preventing thermal runaway under sustained fault conditions. |
| Telecom Line Card Protection | Renewable Energy Monitoring |
Use Scenario: Surge suppression on 48 V telecom line cards exposed to lightning-induced transients. IC Role / Device Role / Timing Role: Fast-response shunt element absorbing energy during ITU-T K.20/21 surges. Use Value: Low inductance SMB package ensures sub-nanosecond response, limiting peak clamped voltage to ≤115 V. | Use Scenario: Voltage monitoring reference in solar inverter string-level DC optimizers. IC Role / Device Role / Timing Role: Precision 100 V reference for isolation amplifier feedback networks. Use Value: Photo-glass passivation ensures <0.5% VZ drift after 1000 hrs at 125 °C, critical for long-term field accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A | TVS diode (unidirectional), 100 V standoff, 1500 W peak pulse power, higher leakage (≤100 μA at 80 V) | Designed for transient surge suppression, not precision DC regulation | Select for high-energy ESD/lightning protection; avoid where low leakage or tight VZ tolerance is required |
| BZT52-B100 | 100 V Zener, SOD-123 package, 500 mW Ptot, ±5% tolerance, RθJA = 350 °C/W | Lower power handling and inferior thermal performance limits use to low-current references | Select only for signal-level biasing (<5 mA); insufficient for 250 mA regulation or automotive under-hood use |
Compared with SMBJ100A and BZT52-B100, the 1PGSMB5949H uniquely combines 3 W continuous power, AEC-Q101 qualification, and 3.7 Ω dynamic impedance at 250 mA-making it suitable for high-stability, high-current automotive and industrial voltage reference designs where TVS robustness or low-power SOD-123 form factor are secondary priorities.
Availability
1PGSMB5949H is available at Aetrix Electronics and suitable for automotive ECUs, industrial 96 V DC power supplies, telecom line cards, and renewable energy monitoring systems requiring stable component supply and AEC-Q101 compliance.
Supply support for 1PGSMB5949H 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, rectifiers, and protection components with global distribution and AEC-Q101 certified production lines.
The 1PGSMB59xxH series is part of TSC's automotive-qualified Zener diode portfolio, engineered specifically for high-temperature voltage reference and clamping in engine control, battery management, and industrial power conversion systems.
FAQ
What is the nominal zener voltage and tolerance of the 1PGSMB5949H?
The 1PGSMB5949H has a nominal zener voltage of 100 V with a ±5% tolerance, meaning its actual breakdown voltage falls between 95 V and 105 V at 250 mA test current and 25 °C ambient. This tolerance is confirmed in the Electrical Specifications table and applies to all units within the 1PGSMB5949H orderable part number.
Is the 1PGSMB5949H suitable for automotive applications?
Yes, the 1PGSMB5949H is AEC-Q101 qualified and rated for junction temperatures from −55 °C to +175 °C. Its photo-glass passivated junction, moisture sensitivity level 1, and matte tin-plated leads meet automotive manufacturing and reliability requirements, making it appropriate for engine control, body electronics, and battery monitoring systems.
What is the maximum DC zener current (IZM) for the 1PGSMB5949H?
The maximum DC zener current (IZM) for the 1PGSMB5949H is 15 mA, as specified in the Electrical Specifications table under "Maximum DC Zener Current." This value represents the highest continuous current the device can safely conduct while maintaining regulation within its 3 W power limit and thermal constraints.
How does the thermal performance of the 1PGSMB5949H compare to standard SMB Zeners?
The 1PGSMB5949H achieves RθJA = 59 °C/W and RθJL = 21 °C/W when mounted on a 10 mm × 10 mm copper pad, matching industry-standard SMB thermal benchmarks. Its RθJC = 23 °C/W confirms efficient heat transfer from junction to case, enabling full 3 W dissipation without exceeding +175 °C junction temperature under defined board conditions.
Does the 1PGSMB5949H have halogen-free and RoHS-compliant construction?
Yes, the 1PGSMB5949H uses halogen-free molding compound per IEC 61249-2-21 and is fully RoHS compliant. These material specifications are explicitly stated in the FEATURES section and verified in the Mechanical Data table, ensuring compatibility with environmentally regulated manufacturing processes.
1PGSMB5949H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- 1PGSMB59
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 100 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 250 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 76 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
1PGSMB5949H FAQ
1.How can I place an order for 1PGSMB5949H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PGSMB5949H 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 1PGSMB5949H reliable?
The price and inventory of 1PGSMB5949H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PGSMB5949H is usually 5 days.
3.What payment methods are accepted for 1PGSMB5949H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PGSMB5949H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PGSMB5949H?
1PGSMB5949H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PGSMB5949H 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 1PGSMB5949H?
For technical support, including 1PGSMB5949H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PGSMB5949H requirements.
6.How does Aetrix verify that 1PGSMB5949H is sourced from the original manufacturer or authorized distributors?
All 1PGSMB5949H 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 1PGSMB5949H meets industry standards.
7.What is the process for return or replacement of 1PGSMB5949H?
All 1PGSMB5949H units undergo pre-shipment inspection (PSI). If there is an issue with 1PGSMB5949H, 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 1PGSMB5949H part is unused and in its original packaging.
Return procedure for 1PGSMB5949H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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