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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation S8KCHM6G

Name: S8KCHM6G
Brand: Taiwan Semiconductor Corporation
SKU: S8KCHM6G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S8KCHM6G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: S8KCHM6G.pdf

Description:: DIODE GEN PURP 800V 8A DO214AB

Quantity:: RFQ Add To RFQ list

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Inventory:4,877

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Product details

Overview

S8KCHM6G from Taiwan Semiconductor is an AEC-Q101-qualified surface-mount silicon rectifier diode in DO-214AB (SMC) package, rated for 800 V repetitive peak reverse voltage (V_RRM), 8 A average forward current (I_F), and 200 A non-repetitive surge current (I_FSM at 8.3 ms). It delivers low forward voltage drop (≤0.985 V at 8 A, 25°C) and supports automotive lighting and DC-DC converter applications.

For engineers reviewing the S8KCHM6G datasheet, S8KCHM6G pinout, S8KCHM6G application, or S8KCHM6G equivalent, key selection criteria include its 800 V V_RRM, glass-passivated junction, JESD201 Class 2 whisker resistance, moisture sensitivity level 1, and UL 94V-0 molding compound - all critical for high-reliability automotive power rectification.

Technical Context

This single-die rectifier operates with a maximum junction temperature of 150°C and features a cathode-band polarity indicator. Its thermal performance includes 12.5°C/W junction-to-lead (R_θJL) and 44.0°C/W junction-to-ambient (R_θJA) resistance, enabling stable conduction under sustained 8 A load in constrained PCB layouts.

Electrical behavior is defined by ≤10 µA reverse leakage at 25°C and ≤250 µA at 125°C, 48 pF junction capacitance at 1 MHz/4 V, and derated forward current capability across ambient temperatures per standardized curves - supporting robust snubber and general-purpose rectification in thermally demanding environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	800 V - Maximum reverse blocking voltage before breakdown; defines usable DC bus voltage headroom in automotive 48V systems.
I_F	8 A - Continuous average forward current at T_L = 75°C; determines steady-state power handling without heatsink.
I_FSM (8.3 ms)	200 A - Peak non-repetitive surge rating; supports inrush current tolerance in DC-DC input stages.
V_F @ 8 A, 25°C	≤0.985 V - Low conduction loss; reduces power dissipation and thermal stress in high-duty-cycle rectifiers.
R_θJL	12.5 °C/W - Junction-to-lead thermal resistance; enables direct PCB copper pour cooling without external heatsink.
Moisture Sensitivity	Level 1 (J-STD-020) - No dry-bake required prior to reflow; simplifies SMT assembly process control.
AEC-Q101 Qualified	Validated for automotive use - meets stress test requirements for temperature cycling, HTRB, and ESD, ensuring field reliability.

Pinout & Package

Package: DO-214AB (SMC), molded plastic case with matte tin-plated leads, UL 94V-0 flammability rating, and cathode band polarity marking. Weight: ~0.270 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of rectified circuit; requires adequate copper area for thermal dissipation.
Cathode	Forward current exit / reverse voltage reference	Marked by visible band; ties to higher-potential rail or output node; defines direction of unidirectional conduction.

Key Features

Feature	Design Value
Glass-passivated chip junction	Enhances long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in automotive under-hood environments.
Low forward voltage drop (≤0.985 V)	Reduces conduction losses by >15% vs. legacy 1.1 V diodes at 8 A, directly improving system efficiency in 48V DC-DC converters.
JESD201 Class 2 whisker resistance	Prevents tin whisker growth on leads during storage or operation, eliminating latent short-circuit risk in safety-critical automotive modules.
Halogen-free (IEC 61249-2-21)	Complies with EU ELV and RoHS directives; avoids corrosive halogen gas release during soldering or end-of-life incineration.
Automated placement compatible	DO-214AB footprint and lead geometry meet pick-and-place machine tolerances; supports high-yield, high-speed SMT line integration.

Applications

Automotive Lighting	DC-DC Converter Input Stage
Use Scenario: Rectifying alternator output or battery-supplied PWM drive in LED headlamp modules. IC Role / Device Role / Timing Role: Power rectifier converting AC or pulsed DC to regulated DC for LED driver ICs. Use Value: AEC-Q101 qualification and 150°C T_JMAX ensure uninterrupted operation under hood temperatures up to 125°C ambient.	Use Scenario: Input bridge rectification in isolated 48V-to-12V buck-boost converters for ADAS ECUs. IC Role / Device Role / Timing Role: Unidirectional current path enabling energy transfer during switching cycles. Use Value: 200 A I_FSM withstands repeated cold-crank surges without degradation, extending converter lifetime.
Snubber Network	General-Purpose Industrial Rectification
Use Scenario: Clamp diode in RCD snubber circuits across MOSFET drains in motor drive inverters. IC Role / Device Role / Timing Role: Fast recovery path for inductive kickback energy during switch turn-off. Use Value: Low V_F minimizes clamp loss; glass passivation prevents parameter drift under repeated voltage transients.	Use Scenario: Output rectification in industrial AC-DC power supplies for PLC I/O modules. IC Role / Device Role / Timing Role: Main power conversion element delivering clean DC bus voltage. Use Value: Level 1 moisture sensitivity and RoHS/halogen-free compliance simplify global manufacturing and regulatory certification.

Automotive Lighting

DC-DC Converter Input Stage

Use Scenario: Rectifying alternator output or battery-supplied PWM drive in LED headlamp modules.

IC Role / Device Role / Timing Role: Power rectifier converting AC or pulsed DC to regulated DC for LED driver ICs.

Use Value: AEC-Q101 qualification and 150°C T_JMAX ensure uninterrupted operation under hood temperatures up to 125°C ambient.

Use Scenario: Input bridge rectification in isolated 48V-to-12V buck-boost converters for ADAS ECUs.

IC Role / Device Role / Timing Role: Unidirectional current path enabling energy transfer during switching cycles.

Use Value: 200 A I_FSM withstands repeated cold-crank surges without degradation, extending converter lifetime.

Snubber Network

General-Purpose Industrial Rectification

Use Scenario: Clamp diode in RCD snubber circuits across MOSFET drains in motor drive inverters.

IC Role / Device Role / Timing Role: Fast recovery path for inductive kickback energy during switch turn-off.

Use Value: Low V_F minimizes clamp loss; glass passivation prevents parameter drift under repeated voltage transients.

Use Scenario: Output rectification in industrial AC-DC power supplies for PLC I/O modules.

IC Role / Device Role / Timing Role: Main power conversion element delivering clean DC bus voltage.

Use Value: Level 1 moisture sensitivity and RoHS/halogen-free compliance simplify global manufacturing and regulatory certification.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay VS-8EWH08FN-M3/45	Same DO-214AB package, 800 V V_RRM, but 8.5 A I_F and 150 A I_FSM; VF = 0.97 V typical.	Lower surge rating limits use in high-inrush automotive starter circuits.	Select when higher average current margin is needed and surge events are infrequent.
ON Semiconductor MUR880EG	Ultrafast recovery (t_rr = 75 ns), same 800 V/8 A rating, but TO-220AC package - not surface-mount.	Requires through-hole assembly and heatsink mounting; unsuitable for dense SMT automotive PCBs.	Select only if fast switching and thermal management via heatsink outweigh SMT compatibility needs.

Compared with VS-8EWH08FN-M3/45 and MUR880EG, the S8KCHM6G provides superior surge robustness (200 A vs. 150 A/-) and full SMT readiness in DO-214AB, making it optimal for space-constrained, high-reliability automotive power stages where AEC-Q101 validation is mandatory.

Availability

S8KCHM6G is available at Aetrix Electronics and suitable for automotive lighting, DC-DC converter input stages, and snubber networks requiring stable component supply, AEC-Q101 compliance, and consistent DO-214AB packaging.

Supply support for S8KCHM6G 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, rectifiers, and protection components.

The S8KCHM6G belongs to TSC's AEC-Q101-qualified S8xCH rectifier family, engineered specifically for automotive-grade surface-mount power conversion where reliability, thermal stability, and process compatibility are critical.

FAQ

What is the peak repetitive reverse voltage rating for S8KCHM6G?

The S8KCHM6G has a peak repetitive reverse voltage (V_RRM) rating of 800 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version B2210). This value defines the maximum DC or peak AC reverse voltage the device can block continuously without breakdown, and is fixed for the "K" variant in the S8xCH series.

Is S8KCHM6G qualified for automotive applications?

Yes, the S8KCHM6G is explicitly AEC-Q101 qualified per the manufacturer's documentation. This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), confirming suitability for automotive power systems such as lighting and DC-DC converters where reliability under harsh conditions is mandatory.

What package type does S8KCHM6G use, and what are its key mechanical properties?

S8KCHM6G uses the DO-214AB (SMC) surface-mount package. Key mechanical properties include UL 94V-0 flammability-rated molding compound, matte tin-plated leads compliant with J-STD-002 solderability, JESD201 Class 2 whisker resistance, and a cathode band for polarity identification. Its weight is approximately 0.270 g.

What is the maximum forward voltage drop for S8KCHM6G at rated current?

The maximum forward voltage drop (V_F) for S8KCHM6G is 0.985 V at I_F = 8 A and T_J = 25°C, as specified in the Electrical Specifications table. This value is measured under pulse conditions (PW = 0.3 ms) and represents the upper limit of conduction loss under nominal operating conditions.

Does S8KCHM6G have moisture sensitivity level (MSL) restrictions for reflow soldering?

No, the S8KCHM6G has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it has unlimited floor life and does not require dry-baking prior to reflow soldering. This simplifies manufacturing flow and eliminates moisture-related popcorning risks during standard lead-free reflow profiles.

S8KCHM6G 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

S8KCHM6G FAQ

1.How can I place an order for S8KCHM6G through Aetrix?

Please submit a Request for Quotation (RFQ) for S8KCHM6G 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 S8KCHM6G reliable?

The price and inventory of S8KCHM6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S8KCHM6G is usually 5 days.

3.What payment methods are accepted for S8KCHM6G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S8KCHM6G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S8KCHM6G?

S8KCHM6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S8KCHM6G 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 S8KCHM6G?

For technical support, including S8KCHM6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S8KCHM6G requirements.

6.How does Aetrix verify that S8KCHM6G is sourced from the original manufacturer or authorized distributors?

All S8KCHM6G 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 S8KCHM6G meets industry standards.

7.What is the process for return or replacement of S8KCHM6G?

All S8KCHM6G units undergo pre-shipment inspection (PSI). If there is an issue with S8KCHM6G, 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 S8KCHM6G part is unused and in its original packaging.

Return procedure for S8KCHM6G:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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