My Inquiry
My Account
Taiwan Semiconductor Corporation S1BB
- Part No.:
- S1BB
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
S1BB.pdf
- Description:
- DIODE GEN PURP 100V 1A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,032
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
S1BB from Taiwan Semiconductor is a 1 A, 100 V standard surface-mount silicon rectifier diode in DO-214AA (SMB) package, featuring glass-passivated junction, low forward voltage drop (max 1.1 V at 1 A), and 30 A surge capability - used in AC/DC front-end stages of compact switching power supplies.
For engineers reviewing the S1BB datasheet, S1BB pinout, S1BB application, or S1BB equivalent, key selection criteria include repetitive peak reverse voltage (100 V), thermal resistance (30 °C/W), junction capacitance (12 pF), moisture sensitivity level (MSL 1), and RoHS/halogen-free compliance for high-reliability consumer and industrial SMPS designs.
Technical Context
The S1BB operates as a single-die, unidirectional, standard recovery rectifier with a maximum junction temperature of 150 °C and storage range from –55 °C to +150 °C. Its glass-passivated chip junction ensures stable reverse leakage (<5 µA at 25 °C, <50 µA at 125 °C) under rated reverse voltage.
Thermally, the device exhibits a junction-to-lead thermal resistance of 30 °C/W and is rated for 1 A average forward current with derating above 75 °C lead temperature. It meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse voltage the diode blocks without breakdown; defines minimum input voltage isolation margin in bridge or output rectification. |
| IF | 1 A - Continuous average forward current rating at TA = 25 °C; sets baseline conduction capacity for low-power SMPS outputs. |
| IFSM | 30 A - Non-repetitive peak surge current (8.3 ms half-sine); supports inrush tolerance during cold-start or line transients. |
| VF (max) | 1.1 V @ 1 A, 25 °C - Forward voltage drop directly impacts conduction loss and thermal rise in high-efficiency converters. |
| RθJL | 30 °C/W - Junction-to-lead thermal resistance; enables direct PCB copper pad thermal design for SMB package without heatsink. |
| CJ | 12 pF @ 1 MHz, 4 V - Junction capacitance affects high-frequency switching noise and EMI filter interaction in >100 kHz topologies. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, single-anode/single-cathode configuration. Cathode indicated by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward current entry point | Connects to lower-potential node (e.g., transformer secondary center-tap or bridge leg); polarity critical for rectification direction. |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connects to higher-potential node (e.g., output rail); band must align with PCB silkscreen cathode marker for automated assembly. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable IR performance across temperature and humidity; eliminates need for conformal coating in humid environments. |
| MSL Level 1 (per J-STD-020) | Allows unlimited floor life and reflow compatibility without dry-pack or baking - simplifies SMT line logistics. |
| Matte tin-plated leads | Ensures reliable solder wetting per J-STD-002; compatible with lead-free and SnPb reflow profiles. |
| UL 94V-0 molding compound | Meets flame-retardant safety requirement for enclosed power adapters and lighting drivers. |
Applications
| AC/DC Adapter Front-End | LED Driver Output Rectification |
|---|---|
Use Scenario: Converts 120/230 VAC mains to low-voltage DC in wall-wart adapters rated ≤15 W. IC Role / Device Role / Timing Role: Standard recovery rectifier in voltage-doubler or bridge configuration; handles 50/60 Hz input rectification and ripple filtering. Use Value: 100 V VRRM provides 2× safety margin over 60 V peak rectified voltage; 1.1 V VF minimizes conduction loss at 1 A load. | Use Scenario: Rectifies high-frequency AC output from flyback or buck-boost LED drivers (20–100 kHz). IC Role / Device Role / Timing Role: Output-stage unidirectional current path; blocks reverse voltage during switch-off phase. Use Value: 12 pF junction capacitance limits displacement current and EMI generation; 30 A IFSM withstands startup surges. |
| Industrial SMPS Auxiliary Supply | USB-C Power Delivery Input Stage |
Use Scenario: Provides isolated bias supply for gate drivers or controllers in 24–48 V input industrial PSUs. IC Role / Device Role / Timing Role: Secondary-side rectifier feeding linear regulator or LDO; operates continuously at partial load. Use Value: 150 °C max junction temperature supports operation in sealed enclosures; MSL 1 enables direct placement into high-volume production. | Use Scenario: Input rectification in compact USB-C PD sink adapters supporting 5–20 V input ranges. IC Role / Device Role / Timing Role: First-stage AC/DC conversion before synchronous rectification or buck regulation. Use Value: DO-214AA (SMB) footprint allows dense layout; halogen-free and RoHS compliance meet strict regulatory requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor M100SFT1G | Same DO-214AA package, 100 V VRRM, but VF = 1.05 V (typ) and IFSM = 25 A - slightly lower conduction loss, reduced surge margin. | Optimized for high-efficiency, low-heat designs where surge events are infrequent; less robust for repeated line transients. | Select when VF reduction outweighs surge headroom; verify thermal design with 25 A IFSM limit. |
| Vishay VS-1EWH01-M3/5AT | DO-214AA, 100 V VRRM, VF = 1.15 V (max), IFSM = 30 A, but IR = 10 µA (max @ 25 °C) - higher leakage than S1BB's 5 µA spec. | Better suited for cost-sensitive consumer adapters where leakage is non-critical; not recommended for high-temperature ambient use. | Prefer for price-driven BOMs; avoid in thermally constrained or high-reliability lighting applications. |
Compared with M100SFT1G and VS-1EWH01-M3/5AT, the S1BB delivers balanced performance: tighter IR specification (5 µA), identical IFSM (30 A), and MSL 1 handling - making it optimal for industrial-grade SMPS requiring long-term stability and process simplicity.
Availability
S1BB is available at Aetrix Electronics and suitable for switching mode power supplies, LED drivers, and AC/DC adapters requiring stable component supply, consistent parametric performance, and full RoHS/halogen-free compliance.
Supply support for S1BB 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power rectifiers, TVS devices, and MOSFETs for industrial and consumer markets.
The S1AB–S1MB series was designed specifically for cost-effective, high-yield surface-mount rectification in compact, thermally constrained AC/DC converters - emphasizing manufacturability, reliability, and regulatory compliance.
FAQ
What is the maximum junction temperature rating for the S1BB?
The S1BB has a maximum junction temperature (TJ) rating of +150 °C, with an operating range from –55 °C to +150 °C. This allows reliable operation in sealed enclosures or high-ambient environments typical of LED drivers and industrial adapters. The S1BB's thermal resistance (RθJL = 30 °C/W) enables effective heat dissipation through the PCB leads without additional heatsinking.
Does the S1BB support lead-free reflow soldering?
Yes, the S1BB features matte tin-plated leads compliant with J-STD-002 for both lead-free and SnPb soldering processes. Its MSL Level 1 rating per J-STD-020 means it can be stored indefinitely at ambient conditions and placed directly onto reflow lines without baking - a key advantage for high-throughput SMT manufacturing of the S1BB.
How does the S1BB's reverse leakage current compare at elevated temperatures?
At 25 °C, the S1BB's maximum reverse leakage current (IR) is 5 µA under rated VR; at 125 °C, it rises to 50 µA. This controlled increase reflects stable glass-passivated junction behavior and supports predictable performance in thermally demanding applications such as enclosed LED drivers where ambient temperatures exceed 85 °C - a critical parameter verified in the S1BB's electrical specifications table.
Is the S1BB pin-compatible with other parts in the S1xB family?
Yes, all S1xB variants (S1AB through S1MB) share identical DO-214AA (SMB) packaging, pinout, and mechanical dimensions - only the VRRM rating differs (50 V to 1000 V). The S1BB uses the same anode/cathode terminal layout and marking orientation as S1AB, S1DB, and others, enabling shared PCB footprints and simplified BOM management across voltage grades.
What is the significance of the S1BB's 12 pF junction capacitance?
The S1BB's typical junction capacitance of 12 pF at 1 MHz and 4 V reverse bias influences high-frequency switching behavior - particularly in EMI filter design and snubberless flyback topologies. This value helps minimize displacement current during fast voltage transitions, reducing radiated emissions and improving efficiency in 65–100 kHz LED drivers where the S1BB is commonly deployed.
S1BB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 1 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 µA @ 100 V
- Capacitance @ Vr, F:
- 12pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S1BB FAQ
1.How can I place an order for S1BB through Aetrix?
Please submit a Request for Quotation (RFQ) for S1BB 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 S1BB reliable?
The price and inventory of S1BB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S1BB is usually 5 days.
3.What payment methods are accepted for S1BB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S1BB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S1BB?
S1BB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S1BB 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 S1BB?
For technical support, including S1BB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S1BB requirements.
6.How does Aetrix verify that S1BB is sourced from the original manufacturer or authorized distributors?
All S1BB 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 S1BB meets industry standards.
7.What is the process for return or replacement of S1BB?
All S1BB units undergo pre-shipment inspection (PSI). If there is an issue with S1BB, 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 S1BB part is unused and in its original packaging.
Return procedure for S1BB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S1BB Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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…
