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Taiwan Semiconductor Corporation S4JH
- Part No.:
- S4JH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
S4JH.pdf
- Description:
- 4A, 600V, STANDARD RECOVERY RECT
- Quantity:
- Payment:
- Shipping:
Inventory:2,800
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Product details
Overview
S4JH from Taiwan Semiconductor is a 4A, 600V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring glass-passivated junction, 100A peak surge capability, 1.15V max forward voltage at 4A/25°C, and AEC-Q101 qualification for automotive use.
For engineers reviewing the S4JH datasheet, S4JH pinout, S4JH application, or S4JH equivalent, key selection criteria include repetitive peak reverse voltage (600V), thermal resistance (13°C/W junction-to-lead), reverse recovery time (1500ns), moisture sensitivity level (J-STD-020 Level 1), and RoHS/halogen-free compliance.
Technical Context
The S4JH is a single-die, standard recovery rectifier optimized for DC-DC conversion and snubber circuits where moderate switching speed and high surge robustness are prioritized over ultrafast recovery. Its 1500ns trr and 60pF junction capacitance reflect trade-offs favoring ruggedness and low conduction loss over high-frequency operation.
Designed for automotive-grade reliability, the S4JH integrates glass passivation for enhanced junction stability under thermal cycling and humidity exposure, with JESD201 Class 2 whisker resistance and UL 94V-0 molding compound - critical for under-hood lighting and power supply modules operating up to 150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum repetitive reverse blocking voltage; defines safe operating range in 400–600V DC bus applications |
| IF | 4 A - Continuous average forward current at TC = 75°C; supports sustained 4A conduction in thermally managed layouts |
| IFSM | 100 A - Non-repetitive surge rating (8.3ms half-sine); enables robust handling of inrush and transient overloads |
| VF (max) | 1.15 V @ 4A, 25°C - Low conduction loss reduces power dissipation and heatsink requirements in 12–48V systems |
| trr | 1500 ns - Standard recovery time; suitable for <100kHz switching topologies like flyback snubbers and linear regulators |
| RθJL | 13 °C/W - Junction-to-lead thermal resistance; enables direct PCB copper pour cooling without additional heatsinking |
| MSL | Level 1 (J-STD-020) - No floor life limitation; compatible with standard SMT reflow without dry pack or baking |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode-indicating band; matte tin-plated leads compliant with J-STD-002 solderability; 0.210g typical weight; UL 94V-0 rated epoxy body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to lower-potential side (e.g., ground or return path) in rectification; requires adequate copper area for thermal conduction |
| Cathode (Lead 2) | Forward current exit / reverse blocking terminal | Marked by visible band; connects to positive output rail; must withstand full VRRM during off-state |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - enables use in headlight drivers and body control modules without additional qualification |
| Glass-passivated junction | Enhanced die surface protection against moisture ingress and contamination - improves long-term reliability in humid under-hood environments |
| Junction-to-lead RθJL = 13°C/W | Enables efficient heat transfer directly into PCB copper; supports >3W continuous dissipation with minimal thermal pad area |
| Moisture Sensitivity Level 1 | Eliminates pre-bake requirement and floor-life tracking - simplifies SMT line integration and reduces manufacturing overhead |
| Halogen-free (IEC 61249-2-21) | Complies with automotive OEM environmental mandates; avoids corrosive halogen emissions during end-of-life recycling or fire events |
Applications
| Automotive LED Headlamp Power Supply | Industrial DC-DC Converter Input Stage |
|---|---|
Use Scenario: Rectifying 12–48V AC or pulsed input in constant-current LED driver front-end for adaptive front-lighting systems. IC Role / Device Role / Timing Role: Primary input rectifier handling 4A continuous and 100A surge during cold-crank events. Use Value: AEC-Q101 qualification and 150°C TJ rating ensure stable operation across -40°C to +125°C ambient, while 1.15V VF minimizes thermal load on compact PCBs. | Use Scenario: Input bridge rectification in isolated 24V-to-5V/12V flyback converters powering PLC I/O modules. IC Role / Device Role / Timing Role: Single-diode configuration in voltage doubler or half-wave topology for cost-sensitive industrial SMPS. Use Value: 600V VRRM provides 2× safety margin over 24V DC bus transients; DO-214AB footprint allows automated placement and high-density layout. |
| Snubber Network in Relay/Contactor Drivers | General-Purpose AC/DC Adapter Output Rectification |
Use Scenario: Clamping inductive kickback from 24V solenoid coils in HVAC actuators and valve controllers. IC Role / Device Role / Timing Role: Snubber diode absorbing energy during coil de-energization; operates in reverse-biased blocking mode until voltage exceeds VRRM. Use Value: 100A IFSM withstands repeated 50–100A spikes; 1500ns trr ensures predictable clamping timing without oscillation. | Use Scenario: Output rectification in 5–12V, 2–4A wall adapters for consumer and medical peripherals. IC Role / Device Role / Timing Role: Secondary-side freewheeling/rectifying diode in low-frequency transformer-based supplies. Use Value: RoHS/halogen-free compliance meets global regulatory requirements; MSL Level 1 eliminates reflow process constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH4L06S | 600V VRRM, 4A IF, but faster trr = 75ns; higher VF = 1.7V @ 4A; TO-277 package | Better suited for high-frequency PFC stages; less optimal for surge-limited snubbers due to lower IFSM (60A) | Select when switching frequency >100kHz is required and thermal budget allows higher VF |
| ON Semi MUR460 | 600V VRRM, 4A IF, trr = 75ns, VF = 1.3V @ 4A; DO-201AD package (larger than SMC) | Higher thermal mass but incompatible footprint; not AEC-Q101 qualified | Choose only if legacy board space permits larger case and automotive qualification is not mandatory |
Compared with STTH4L06S and MUR460, the S4JH offers superior surge robustness (100A vs ≤60A), automotive qualification, and compact DO-214AB packaging - making it the preferred choice for space-constrained, high-reliability 600V rectification where standard recovery speed is acceptable.
Availability
S4JH is available at Aetrix Electronics and suitable for automotive lighting, industrial DC-DC converters, and snubber networks requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for S4JH 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, serving automotive, industrial, and consumer markets since 1979.
The S4JH belongs to TSC's AEC-Q101-qualified S4xH rectifier family, engineered specifically for high-surge, high-reliability surface-mount rectification in automotive power systems and ruggedized industrial supplies.
FAQ
What is the maximum junction temperature rating for the S4JH?
The S4JH has a maximum junction temperature (TJ MAX) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet. This rating enables reliable operation in under-hood automotive environments and thermally dense industrial PCBs. Derating curves confirm usable current capacity down to -55°C storage, and the device maintains specified electrical performance within this full range. The S4JH's thermal design leverages its 13°C/W junction-to-lead resistance to sustain this rating under proper PCB copper thermal management.
Is the S4JH pin-compatible with other devices in the S4xH series?
Yes - all S4xH devices including S4JH share identical DO-214AB (SMC) package dimensions, lead finish, polarity marking (cathode band), and mechanical footprint. Voltage variants (S4AH to S4MH) differ only in VRRM and associated reverse leakage, not pinout or mounting. Therefore, S4JH can be substituted for other S4xH parts on the same PCB layout without modification, provided the 600V rating meets system requirements. This uniformity simplifies BOM consolidation across voltage grades.
Does the S4JH meet automotive reliability standards?
Yes, the S4JH is explicitly qualified to AEC-Q101 for stress testing including HTGB, HTRB, TCT, and UHAST. It also complies with JESD201 Class 2 whisker resistance, J-STD-020 MSL Level 1, and halogen-free standards per IEC 61249-2-21. These certifications are documented in Taiwan Semiconductor's official qualification reports for the S4xH family. The S4JH's glass-passivated junction and UL 94V-0 molding compound further reinforce its suitability for automotive lighting and power modules.
What is the reverse recovery time (trr) of the S4JH and how does it affect circuit design?
The S4JH has a reverse recovery time (trr) of 1500 ns, measured under IF = 0.5A, IR = 1.0A, and Irr = 0.25A. This standard recovery characteristic makes the S4JH appropriate for line-frequency and low-to-mid frequency (<100 kHz) applications such as snubbers, linear regulators, and basic DC-DC inputs - but not for high-frequency synchronous rectification. Designers should account for trr-related switching losses and potential ringing in fast-switching topologies; the S4JH's 1500ns trr is intentionally balanced with low VF and high IFSM for ruggedness over speed.
How is the S4JH marked on the device body?
The S4JH is marked with "S4J" on the cathode-banded surface, followed by date code (e.g., "YW"), factory code (e.g., "F"), and green compound indicator ("G") per Taiwan Semiconductor's marking diagram. This 3-character prefix distinguishes it from other S4xH variants (e.g., S4A, S4K) and confirms the 600V rating. The cathode band itself serves as polarity identification and aligns with the pinout definition in the DO-214AB outline drawing. No additional alphanumeric codes or logos appear on the S4JH device body.
S4JH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 4A
- Voltage - Forward (Vf) (Max) @ If:
- 1.15 V @ 4 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 1.5 µs
- Current - Reverse Leakage @ Vr:
- 10 µA @ 600 V
- Capacitance @ Vr, F:
- 60pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S4JH FAQ
1.How can I place an order for S4JH through Aetrix?
Please submit a Request for Quotation (RFQ) for S4JH 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 S4JH reliable?
The price and inventory of S4JH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S4JH is usually 5 days.
3.What payment methods are accepted for S4JH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S4JH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S4JH?
S4JH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S4JH 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 S4JH?
For technical support, including S4JH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S4JH requirements.
6.How does Aetrix verify that S4JH is sourced from the original manufacturer or authorized distributors?
All S4JH 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 S4JH meets industry standards.
7.What is the process for return or replacement of S4JH?
All S4JH units undergo pre-shipment inspection (PSI). If there is an issue with S4JH, 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 S4JH part is unused and in its original packaging.
Return procedure for S4JH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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