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Taiwan Semiconductor Corporation S8KCHR7G
- Part No.:
- S8KCHR7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
S8KCHR7G.pdf
- Description:
- DIODE GEN PURP 800V 8A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,679
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Product details
Overview
S8KCHR7G from Taiwan Semiconductor is an AEC-Q101-qualified surface-mount silicon rectifier diode with 800 V repetitive peak reverse voltage (VRRM), 8 A average forward current (IF), and low 0.985 V forward voltage drop at 8 A and 25°C. It features glass-passivated junction, DO-214AB (SMC) package, and is used in automotive DC-DC converters and snubber circuits.
For engineers reviewing the S8KCHR7G datasheet, S8KCHR7G pinout, S8KCHR7G application, or S8KCHR7G equivalent, key selection criteria include its 800 V VRRM, 200 A non-repetitive surge rating (8.3 ms), 12.5 °C/W junction-to-lead thermal resistance, AEC-Q101 qualification, and moisture sensitivity level 1 compliance.
Technical Context
This single-die standard recovery rectifier operates with a maximum junction temperature of 150°C and supports continuous conduction in high-voltage DC-DC stages. Its 48 pF junction capacitance at 4 V reverse bias and 10 µA reverse leakage at 25°C enable stable switching behavior in snubber networks and automotive power supplies.
The device uses a glass-passivated chip junction for enhanced reliability under thermal cycling and humidity exposure. Its matte tin-plated leads meet J-STD-002 solderability requirements and JESD201 Class 2 whisker resistance, supporting automated placement in automotive-grade assembly lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - blocks up to 800 V reverse voltage without breakdown in automotive and industrial power rails |
| IF | 8 A - delivers continuous forward current suitable for mid-power DC-DC converter output stages |
| IFSM (8.3 ms) | 200 A - withstands transient surges typical of load dump events in 12 V/24 V vehicle systems |
| VF @ 8 A, 25°C | 0.985 V - minimizes conduction loss and thermal stress in high-duty-cycle rectification |
| RθJL | 12.5 °C/W - enables efficient heat transfer to PCB copper pour or heatsink via lead frame |
| Junction capacitance | 48 pF @ 1 MHz, 4 V - limits high-frequency noise coupling in snubber and EMI filter applications |
Pinout & Package
Package: DO-214AB (SMC), molded plastic case per JEDEC DO-214AB, polarity indicated by cathode band, matte tin-plated leads, weight ≈ 0.270 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., transformer secondary center-tap or switch node return) |
| Cathode | Forward current exit point | Connected to output rail or smoothing capacitor positive terminal; marked by visible band |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive power electronics including engine control modules and lighting drivers |
| Glass-passivated junction | Prevents moisture ingress and metallization corrosion during 1000+ thermal cycles (-55°C to +150°C) |
| Moisture sensitivity level 1 | Zero bake requirement before reflow; compatible with standard SMT assembly without dry pack handling |
| Halogen-free construction | Complies with IEC 61249-2-21, enabling use in environmentally regulated automotive supply chains |
Applications
| Automotive DC-DC Converter | LED Headlamp Power Supply |
|---|---|
Use Scenario: Step-down conversion from 24 V battery to 12 V auxiliary rail in commercial vehicles. IC Role / Device Role / Timing Role: Output rectifier in synchronous or freewheeling configuration. Use Value: 800 V VRRM accommodates 24 V system transients; 0.985 V VF reduces conduction loss at 8 A load. | Use Scenario: Constant-current driver for high-brightness LED arrays in adaptive front lighting systems. IC Role / Device Role / Timing Role: Freewheeling diode across buck converter inductor. Use Value: 200 A IFSM handles inductive kickback during PWM dimming; AEC-Q101 ensures reliability over 15-year vehicle life. |
| Snubber Network | Industrial AC-DC Front End |
Use Scenario: RC snubber across MOSFET or IGBT switches in motor drives and inverters. IC Role / Device Role / Timing Role: Voltage clamping diode absorbing turn-off energy. Use Value: 48 pF junction capacitance stabilizes snubber resonance; 150°C TJMAX supports operation near power semiconductors. | Use Scenario: Input bridge rectification in 3-phase industrial SMPS with 400 VAC input. IC Role / Device Role / Timing Role: Single-phase leg in full-wave bridge configuration. Use Value: DO-214AB package allows high-density layout; 12.5 °C/W RθJL enables direct thermal coupling to heatsinked PCB copper. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-8EWH08FN-M3/45 | Same DO-214AB package, 800 V VRRM, but 0.92 V VF @ 8 A and 150°C TJMAX; not AEC-Q101 qualified | Preferred for industrial non-automotive use where lower VF outweighs qualification requirements | Select when automotive qualification is unnecessary and lowest conduction loss is prioritized |
| ON Semiconductor MUR880EG | Ultrafast recovery (trr = 75 ns), 800 V VRRM, same IF/IFSM, DO-214AB, AEC-Q101 qualified | Better suited for high-frequency PFC or resonant topologies requiring fast recovery | Select when switching frequency exceeds 100 kHz and reverse recovery time impacts efficiency |
Compared with VS-8EWH08FN-M3/45, S8KCHR7G provides automotive qualification at slightly higher VF; compared with MUR880EG, it offers lower cost and standard recovery for <100 kHz applications where ultrafast trr is unnecessary.
Availability
S8KCHR7G is available at Aetrix Electronics and suitable for automotive DC-DC converters, LED headlamp power supplies, and industrial snubber networks requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for S8KCHR7G 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 S8KCHR7G belongs to TSC's AEC-Q101-qualified S8xCH rectifier family, designed specifically for high-reliability automotive power conversion and snubbing where robustness against thermal cycling, humidity, and electrical transients is mandatory.
FAQ
What is the peak repetitive reverse voltage rating for S8KCHR7G?
The S8KCHR7G has a peak repetitive reverse voltage (VRRM) of 800 V, verified per the Taiwan Semiconductor datasheet Version B2210. This rating defines the maximum reverse voltage the device can block continuously without breakdown under normal operating conditions, making it suitable for 24 V automotive systems with load dump protection requirements.
Is S8KCHR7G qualified for automotive applications?
Yes, S8KCHR7G is AEC-Q101 qualified, as explicitly stated in the official Taiwan Semiconductor documentation. This qualification confirms its suitability for automotive power electronics, including engine control units, body control modules, and lighting systems, where reliability under extended temperature cycling and vibration is critical.
What is the forward voltage drop of S8KCHR7G at rated current?
The S8KCHR7G exhibits a maximum forward voltage drop (VF) of 0.985 V at 8 A forward current and 25°C junction temperature, per the electrical specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and directly impacts conduction losses and thermal design in high-current rectifier applications.
What package type does S8KCHR7G use, and what are its key mechanical attributes?
S8KCHR7G uses the DO-214AB (SMC) surface-mount package. Key mechanical attributes include matte tin-plated leads compliant with J-STD-002, moisture sensitivity level 1 (no bake required), UL 94V-0 flammability-rated molding compound, and a cathode band for polarity identification. The device weighs approximately 0.270 g.
Does S8KCHR7G have halogen-free and RoHS-compliant construction?
Yes, S8KCHR7G is both RoHS compliant and halogen-free in accordance with IEC 61249-2-21, as confirmed in the FEATURES section of the Taiwan Semiconductor datasheet. These environmental qualifications support compliance with global automotive OEM material declarations and end-of-life recycling requirements.
S8KCHR7G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 800 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 985 mV @ 8 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 800 V
- Capacitance @ Vr, F:
- 48pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S8KCHR7G FAQ
1.How can I place an order for S8KCHR7G through Aetrix?
Please submit a Request for Quotation (RFQ) for S8KCHR7G 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 S8KCHR7G reliable?
The price and inventory of S8KCHR7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S8KCHR7G is usually 5 days.
3.What payment methods are accepted for S8KCHR7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S8KCHR7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S8KCHR7G?
S8KCHR7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S8KCHR7G 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 S8KCHR7G?
For technical support, including S8KCHR7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S8KCHR7G requirements.
6.How does Aetrix verify that S8KCHR7G is sourced from the original manufacturer or authorized distributors?
All S8KCHR7G 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 S8KCHR7G meets industry standards.
7.What is the process for return or replacement of S8KCHR7G?
All S8KCHR7G units undergo pre-shipment inspection (PSI). If there is an issue with S8KCHR7G, 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 S8KCHR7G part is unused and in its original packaging.
Return procedure for S8KCHR7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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