Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Taiwan Semiconductor Corporation S8MCHR7G

Name: S8MCHR7G
Brand: Taiwan Semiconductor Corporation
SKU: S8MCHR7G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: S8MCHR7G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: S8MCHR7G.pdf

Description:: DIODE GEN PURP 8A DO214AB

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:6,427

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

S8MCHR7G from Taiwan Semiconductor is an AEC-Q101-qualified surface-mount silicon rectifier diode in DO-214AB (SMC) package, rated for 1000 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 operates up to +150°C junction temperature, making it suitable for automotive DC-DC converters and snubber circuits.

For engineers reviewing the S8MCHR7G datasheet, S8MCHR7G pinout, S8MCHR7G application, or S8MCHR7G equivalent, key selection factors include its 1000 V V_RRM, AEC-Q101 qualification, glass-passivated junction, moisture sensitivity level 1 rating, and DO-214AB mechanical compatibility with automated SMT assembly.

Technical Context

The S8MCHR7G is a single-die, unidirectional silicon rectifier optimized for high-voltage, medium-current AC/DC and DC/DC conversion. Its glass-passivated junction ensures stable reverse leakage (<250 µA at 125°C) and robust surge immunity, while the DO-214AB (SMC) package provides low thermal resistance (R_θJL = 12.5°C/W) and UL 94V-0 mold compound compliance.

Designed for automotive-grade reliability, the device meets JESD201 Class 2 whisker resistance and supports lead-free reflow per J-STD-002. Polarity is marked by a cathode band; the matte tin-plated leads are fully solderable and halogen-free per IEC 61249-2-21.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1000 V - Maximum repetitive reverse blocking voltage; enables use in 700 V RMS input systems (e.g., 3-phase rectification or high-line AC-DC).
I_F	8 A - Continuous average forward current at T_L = 110°C; defines steady-state power handling in thermally constrained layouts.
I_FSM (8.3 ms)	200 A - Peak non-repetitive surge capability; withstands inrush and fault currents in automotive lighting and DC-DC primary-side rectification.
V_F @ 8 A, 25°C	≤0.985 V - Low conduction loss reduces heat generation and improves efficiency in high-duty-cycle applications.
T_J max	+150°C - Extended junction temperature rating supports under-hood automotive environments without derating penalties.
R_θJL	12.5°C/W - Low junction-to-lead thermal resistance enables effective heat transfer to PCB copper, critical for compact SMT designs.
C_J @ 1 MHz, 4 V	48 pF - Junction capacitance impacts switching speed and EMI in snubber and freewheeling applications.

Pinout & Package

DO-214AB (SMC) surface-mount package: molded plastic body with matte tin-plated leads, cathode indicated by a visible band, polarity-aligned for standard PCB layout. Weight ≈ 0.270 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of AC source or switch node; requires adequate copper pour for thermal dissipation.
Cathode	Forward current exit / reverse blocking terminal	Marked by cathode band; connects to output rail or filter capacitor; must maintain clearance from adjacent high-dV/dt nodes.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive electronics per stress test requirements including HTOL, TC, HTRB, and UHAST-enables use in safety-critical vehicle subsystems.
Glass-passivated junction	Eliminates metallic contamination risk and enhances long-term stability of reverse leakage and breakdown characteristics over temperature and life.
Moisture sensitivity level 1	No dry-pack or baking required before SMT reflow-reduces manufacturing overhead and eliminates moisture-induced popcorning risk.
Halogen-free & RoHS compliant	Meets IEC 61249-2-21 and EU RoHS directives-supports environmentally regulated supply chains and end-of-life recycling compliance.
High I_FSM/I_F ratio (25:1)	Enables robust transient tolerance without oversized devices-ideal for snubbers and flyback secondary rectifiers subject to periodic overloads.

Applications

Automotive DC-DC Converters	LED Headlamp Drivers
Use Scenario: High-efficiency 12 V–48 V bidirectional DC-DC conversion in 48 V mild-hybrid architectures. IC Role / Device Role / Timing Role: Primary-side rectifier in synchronous or quasi-resonant topologies, handling 8 A continuous and 200 A surge pulses. Use Value: 1000 V V_RRM accommodates reflected transients; low V_F minimizes conduction loss at high duty cycles.	Use Scenario: Constant-current LED driver for adaptive front lighting systems (AFS) with PWM dimming and overvoltage protection. IC Role / Device Role / Timing Role: Freewheeling diode across buck converter inductor, clamping inductive kick during MOSFET turn-off. Use Value: 48 pF junction capacitance limits ringing; AEC-Q101 qualification ensures reliability in vibration-prone headlamp housings.
Snubber Networks	Industrial AC-DC Power Supplies
Use Scenario: RCD snubber across MOSFET or IGBT switches in motor drives and inverters operating up to 1000 V bus. IC Role / Device Role / Timing Role: Fast-recovery rectifier absorbing energy from parasitic inductance during switching transitions. Use Value: Glass-passivated junction ensures stable reverse recovery behavior; 12.5°C/W R_θJL allows direct thermal coupling to heatsink pads.	Use Scenario: Output rectification in universal-input (85–265 VAC) industrial SMPS with >100 W output power. IC Role / Device Role / Timing Role: Secondary-side rectifier delivering 8 A to 12 V or 24 V rails, operating continuously at elevated ambient temperatures. Use Value: +150°C T_J max enables operation without forced air cooling; DO-214AB footprint supports high-density PCB layout.

Automotive DC-DC Converters

LED Headlamp Drivers

Use Scenario: High-efficiency 12 V–48 V bidirectional DC-DC conversion in 48 V mild-hybrid architectures.

IC Role / Device Role / Timing Role: Primary-side rectifier in synchronous or quasi-resonant topologies, handling 8 A continuous and 200 A surge pulses.

Use Value: 1000 V V_RRM accommodates reflected transients; low V_F minimizes conduction loss at high duty cycles.

Use Scenario: Constant-current LED driver for adaptive front lighting systems (AFS) with PWM dimming and overvoltage protection.

IC Role / Device Role / Timing Role: Freewheeling diode across buck converter inductor, clamping inductive kick during MOSFET turn-off.

Use Value: 48 pF junction capacitance limits ringing; AEC-Q101 qualification ensures reliability in vibration-prone headlamp housings.

Snubber Networks

Industrial AC-DC Power Supplies

Use Scenario: RCD snubber across MOSFET or IGBT switches in motor drives and inverters operating up to 1000 V bus.

IC Role / Device Role / Timing Role: Fast-recovery rectifier absorbing energy from parasitic inductance during switching transitions.

Use Value: Glass-passivated junction ensures stable reverse recovery behavior; 12.5°C/W R_θJL allows direct thermal coupling to heatsink pads.

Use Scenario: Output rectification in universal-input (85–265 VAC) industrial SMPS with >100 W output power.

IC Role / Device Role / Timing Role: Secondary-side rectifier delivering 8 A to 12 V or 24 V rails, operating continuously at elevated ambient temperatures.

Use Value: +150°C T_J max enables operation without forced air cooling; DO-214AB footprint supports high-density PCB layout.

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-8EWH10-M3/45	Same DO-214AB package, 1000 V V_RRM, but rated for 8 A at T_C = 115°C (vs. S8MCHR7G's T_L = 110°C); V_F = 1.05 V max at 8 A.	Higher thermal limit at case vs. lead; slightly higher forward drop increases conduction loss by ~7% at full load.	Prefer when board-level thermal management targets case temperature rather than lead temperature.
ON Semiconductor MUR8100CTR	Ultrafast recovery (t_rr = 75 ns), TO-220AC package; same 1000 V/8 A ratings but not AEC-Q101 qualified.	Superior switching performance for high-frequency PFC stages, but lacks automotive qualification and surface-mount compatibility.	Select only for non-automotive, high-frequency rectification where leaded mounting is acceptable.

Compared with VS-8EWH10-M3/45 and MUR8100CTR, the S8MCHR7G uniquely combines AEC-Q101 qualification, DO-214AB SMT compatibility, and moisture sensitivity level 1-making it the only choice for automotive SMT production requiring zero bake and full automotive reliability validation.

Availability

S8MCHR7G is available at Aetrix Electronics and suitable for automotive DC-DC converters, LED headlamp drivers, and industrial snubber networks requiring stable component supply, consistent parametric performance, and full traceability across production lots.

Supply support for S8MCHR7G 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 Company (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power rectifiers, TVS diodes, and MOSFETs for industrial and automotive markets.

The S8MCHR7G belongs to TSC's S8xCH high-voltage rectifier family, engineered specifically for AEC-Q101-compliant automotive power conversion and high-reliability industrial rectification where thermal robustness and surge immunity are critical.

FAQ

What is the maximum junction temperature rating for the S8MCHR7G?

The S8MCHR7G has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet revision B2210. This allows sustained operation in under-hood automotive environments and high-ambient industrial settings without mandatory derating below 8 A, provided lead temperature remains ≤110°C. The S8MCHR7G's thermal design leverages its 12.5°C/W junction-to-lead resistance to maintain safe T_J under typical PCB copper layouts.

Is the S8MCHR7G suitable for automotive applications?

Yes, the S8MCHR7G is explicitly AEC-Q101 qualified per the Taiwan Semiconductor datasheet, having passed HTOL, TC, HTRB, and UHAST stress tests. Its DO-214AB package features matte tin-plated leads compliant with J-STD-002, moisture sensitivity level 1 (no bake required), and halogen-free construction per IEC 61249-2-21-meeting core automotive manufacturing and reliability requirements. The S8MCHR7G is deployed in automotive DC-DC converters and LED lighting modules.

What does the 'R7G' suffix in S8MCHR7G indicate?

The 'R7G' suffix in S8MCHR7G denotes Taiwan Semiconductor's tape-and-reel packaging variant: R7 indicates 7-inch reel, and G signifies green (halogen-free) molding compound. This matches the ordering code structure defined in the datasheet, where 'S8xCH' is the base part, and suffixes encode packaging and environmental attributes. The S8MCHR7G is supplied in 3,000-unit reels compatible with standard SMT pick-and-place equipment.

How does the forward voltage of the S8MCHR7G compare to similar 1000 V rectifiers?

The S8MCHR7G specifies a maximum forward voltage (V_F) of 0.985 V at 8 A and 25°C, measured under 0.3 ms pulse conditions. This is competitive with industry benchmarks: it is 65 mV lower than ON Semiconductor's MUR8100CTR (1.05 V) and matches Vishay's VS-8EWH10-M3/45 typical V_F. The low V_F directly reduces conduction losses-critical for thermally constrained automotive and industrial applications where the S8MCHR7G is specified.

What is the surge current rating of the S8MCHR7G and how is it tested?

The S8MCHR7G is rated for 200 A peak non-repetitive forward surge current (I_FSM) under an 8.3 ms single half-sine wave at T_J = 25°C, per JEDEC standards. At T_J = 125°C, the rating drops to 170 A. An additional 1.0 ms surge rating of 600 A (at 25°C) is also specified. These values are validated using standardized surge waveform testing and define the S8MCHR7G's ability to survive line transients, inrush events, and short-circuit faults in automotive and industrial power systems.

S8MCHR7G 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):: 1000 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 @ 1000 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

S8MCHR7G FAQ

1.How can I place an order for S8MCHR7G through Aetrix?

Please submit a Request for Quotation (RFQ) for S8MCHR7G 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 S8MCHR7G reliable?

The price and inventory of S8MCHR7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S8MCHR7G is usually 5 days.

3.What payment methods are accepted for S8MCHR7G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S8MCHR7G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S8MCHR7G?

S8MCHR7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S8MCHR7G 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 S8MCHR7G?

For technical support, including S8MCHR7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S8MCHR7G requirements.

6.How does Aetrix verify that S8MCHR7G is sourced from the original manufacturer or authorized distributors?

All S8MCHR7G 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 S8MCHR7G meets industry standards.

7.What is the process for return or replacement of S8MCHR7G?

All S8MCHR7G units undergo pre-shipment inspection (PSI). If there is an issue with S8MCHR7G, 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 S8MCHR7G part is unused and in its original packaging.

Return procedure for S8MCHR7G:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

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, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

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.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…