My Inquiry
My Account
Taiwan Semiconductor Corporation TSSE3H45H
- Part No.:
- TSSE3H45H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123H
- Datasheet:
-
TSSE3H45H.pdf
- Description:
- 3A, 45V, TRENCH SCHOTTKY
- Quantity:
- Payment:
- Shipping:
Inventory:5,772
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TSSE3H45H from Taiwan Semiconductor is a 3A, 45V trench Schottky surface-mount rectifier in SOD-123HE package, featuring low forward voltage (0.48 V typ. @ 3A, 25°C), high surge capability (60 A IFSM), AEC-Q101 qualification, and operation up to 150°C junction temperature-used in automotive DC/DC converters and reverse battery protection circuits.
For engineers reviewing the TSSE3H45H datasheet, TSSE3H45H pinout, TSSE3H45H application, or TSSE3H45H equivalent, key selection criteria include verified 45 V VRRM rating, 0.42–0.50 V VF range at 125°C, J-STD-020 Level 1 moisture sensitivity, RoHS/halogen-free compliance, and SOD-123HE mechanical compatibility with high-density PCB layouts.
Technical Context
This device implements a single-die trench Schottky architecture optimized for low conduction loss and fast switching in low-voltage, high-frequency power conversion. Its 20°C/W junction-to-lead thermal resistance and -55°C to +150°C operating range support reliable operation in thermally constrained automotive environments.
The TSSE3H45H delivers stable reverse leakage (<100 µA @ 25°C, <25 mA @ 125°C) and exhibits minimal VF drift across temperature-0.42 V typ. at 3A/125°C-enabling consistent efficiency in DC/DC stages where thermal management is limited.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - maximum repetitive reverse voltage before breakdown; defines safe blocking capability in 12–24 V automotive systems |
| IF | 3 A continuous - rated average forward current under specified thermal conditions; supports compact DC/DC output stages |
| IFSM | 60 A - peak non-repetitive surge current (8.3 ms half-sine); handles load dump and inrush transients |
| VF @ 3A, 25°C | 0.48 V typ., 0.57 V max - directly reduces conduction loss and improves system efficiency vs. standard PN diodes |
| TJ max | +150 °C - enables placement near hot components (e.g., MOSFETs, inductors) without derating penalties |
| MSL | Level 1 per J-STD-020 - no floor life limitation; supports standard reflow without dry-pack requirements |
Pinout & Package
Package: SOD-123HE - surface-mount, molded plastic case with matte tin-plated leads, UL 94V-0 rated, polarity indicated by cathode band, weight ≈ 0.022 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., ground or switch node) in freewheeling or reverse protection configurations |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connects to positive rail in reverse battery protection or output of buck converter |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Low VF at high temperature | 0.42 V typ. @ 3A/125°C - maintains efficiency in under-hood thermal environments where ambient exceeds 85°C |
| Junction-to-lead RθJL = 20°C/W | Enables direct heat transfer to PCB copper; supports >2.5 W dissipation with minimal trace area in SOD-123HE footprint |
| Halogen-free & RoHS compliant | Meets EU Directive 2011/65/EU and IEC 61249-2-21; eliminates brominated flame retardants in molding compound |
Applications
| Reverse Battery Protection | Automotive DC/DC Converter |
|---|---|
Use Scenario: Installed between vehicle battery and electronic control unit to block reverse polarity connection during service or jump-start events. IC Role / Device Role / Timing Role: Unidirectional blocking element placed in series with main power input; conducts only when anode is more negative than cathode. Use Value: Prevents catastrophic damage to downstream SMPS controllers and microcontrollers using only 0.48 V forward drop at full load-minimizing voltage loss in 12 V systems. | Use Scenario: Output rectifier in synchronous or non-synchronous buck converter powering ADAS sensors or infotainment modules. IC Role / Device Role / Timing Role: Freewheeling path for inductor current during high-side switch off-time; critical for maintaining regulation and efficiency. Use Value: Delivers 3 A continuous current with <0.50 V VF at 125°C, reducing power loss by >40% versus comparable PN diodes and enabling smaller heatsinking. |
| Car Lighting Systems | Low-Voltage Inverter |
Use Scenario: Reverse polarity clamp and EMI suppression component in LED headlamp driver modules exposed to load dump pulses. IC Role / Device Role / Timing Role: Parallel-connected protection diode across input rails; clamps transient overvoltage while conducting surge current. Use Value: Withstands 60 A IFSM surges and operates reliably at 150°C junction temperature-ensuring uninterrupted illumination during harsh electrical events. | Use Scenario: High-frequency rectification stage in 24 V to 48 V bi-directional inverters used in mild hybrid energy recovery systems. IC Role / Device Role / Timing Role: Fast-switching output rectifier handling kHz-range PWM waveforms; requires low Qrr and minimal reverse recovery loss. Use Value: Trench Schottky structure eliminates minority-carrier storage delay, enabling clean commutation at >100 kHz without snubbers or ringing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-3EYH04-M3/5BT | 45 V VRRM, 3 A IF, SOD-123 package; VF = 0.52 V max @ 3A/25°C; not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial DC/DC but not safety-critical vehicle subsystems | Select when AEC-Q101 is not required and cost sensitivity outweighs qualification needs |
| ON Semiconductor SB340-T | 40 V VRRM, 3 A IF, DO-214AA package; VF = 0.52 V max @ 3A/25°C; AEC-Q101 qualified | Lower 40 V rating limits use in 24 V systems with ripple; larger DO-214AA footprint increases board area | Choose only if 40 V margin suffices and SOD-123HE space constraints are relaxed |
Compared with VS-3EYH04-M3/5BT and SB340-T, the TSSE3H45H uniquely combines AEC-Q101 qualification, 45 V rating, SOD-123HE footprint, and sub-0.5 V VF at 125°C-making it optimal for space-constrained, thermally demanding automotive power rails where both reliability and efficiency are mandatory.
Availability
TSSE3H45H is available at Aetrix Electronics and suitable for automotive DC/DC converters, reverse battery protection circuits, and car lighting systems requiring stable component supply with guaranteed long-term sourcing.
Supply support for TSSE3H45H 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 devices, TVS, and rectifiers for industrial and automotive markets.
The TSSE3H series was developed specifically for high-efficiency, high-reliability automotive power conversion-targeting applications where low VF, AEC-Q101 compliance, and thermal robustness are essential design requirements.
FAQ
What is the maximum junction temperature rating for TSSE3H45H?
The TSSE3H45H has a maximum junction temperature (TJ max) of +150°C, verified per absolute maximum ratings in the official datasheet. This allows the TSSE3H45H to operate continuously in under-hood environments where ambient temperatures exceed 105°C, provided thermal design meets the 20°C/W RθJL specification and PCB copper area is sufficient to dissipate up to ~2.5 W at steady state.
Is TSSE3H45H AEC-Q101 qualified?
Yes, TSSE3H45H is explicitly AEC-Q101 qualified as stated in the FEATURES section of the official Taiwan Semiconductor datasheet. This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and electrostatic discharge (ESD), confirming suitability for automotive power electronics where reliability is mission-critical.
What is the forward voltage of TSSE3H45H at 3A and 125°C?
The TSSE3H45H exhibits a typical forward voltage of 0.42 V and a maximum of 0.50 V at 3A and 125°C, per the ELECTRICAL SPECIFICATIONS table. This low, stable VF at elevated temperature ensures predictable conduction loss in automotive DC/DC converters operating in hot under-hood conditions-directly supporting thermal design margin and efficiency targets.
What package does TSSE3H45H use, and is it moisture-sensitive?
TSSE3H45H uses the SOD-123HE surface-mount package with matte tin-plated leads and a UL 94V-0 rated molding compound. It is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and can be processed using standard reflow profiles without baking or dry-pack handling-simplifying manufacturing for high-volume automotive PCB assembly.
How does TSSE3H45H differ from TSSE3H60H?
The TSSE3H45H is rated for 45 V VRRM and marked "E3H45", while TSSE3H60H is rated for 60 V VRRM and marked "E3H60". Their forward voltage differs: TSSE3H45H achieves 0.48 V typ. @ 3A/25°C, whereas TSSE3H60H measures 0.56 V typ. under identical conditions. Both share identical package, thermal specs, and AEC-Q101 qualification-but TSSE3H45H offers lower conduction loss where 45 V blocking suffices.
TSSE3H45H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123H
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 570 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 45 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123HE
- Operating Temperature - Junction:
- -55°C ~ 150°C
TSSE3H45H FAQ
1.How can I place an order for TSSE3H45H through Aetrix?
Please submit a Request for Quotation (RFQ) for TSSE3H45H 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 TSSE3H45H reliable?
The price and inventory of TSSE3H45H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSSE3H45H is usually 5 days.
3.What payment methods are accepted for TSSE3H45H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSSE3H45H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSSE3H45H?
TSSE3H45H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSSE3H45H 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 TSSE3H45H?
For technical support, including TSSE3H45H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSSE3H45H requirements.
6.How does Aetrix verify that TSSE3H45H is sourced from the original manufacturer or authorized distributors?
All TSSE3H45H 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 TSSE3H45H meets industry standards.
7.What is the process for return or replacement of TSSE3H45H?
All TSSE3H45H units undergo pre-shipment inspection (PSI). If there is an issue with TSSE3H45H, 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 TSSE3H45H part is unused and in its original packaging.
Return procedure for TSSE3H45H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSSE3H45H 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…
