My Inquiry
My Account
Taiwan Semiconductor Corporation S15MCH
- Part No.:
- S15MCH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
S15MCH.pdf
- Description:
- DIODE GEN PURP 1KV 15A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,878
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
S15MCH from Taiwan Semiconductor is a 15A, 1000V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring glass-passivated junction, AEC-Q101 qualification, 350A peak surge current, and 1.1V max forward voltage at 15A/25°C - used in automotive DC-DC converters and snubber circuits.
For engineers reviewing the S15MCH datasheet, S15MCH pinout, S15MCH application, or S15MCH equivalent, key selection criteria include repetitive peak reverse voltage (1000V), thermal resistance (RθJL = 8°C/W), moisture sensitivity level (MSL 1), RoHS/halogen-free compliance, and automotive-grade reliability per AEC-Q101.
Technical Context
The S15MCH is a single-die, unidirectional silicon rectifier optimized for high-voltage, high-current switching applications. It operates with a maximum junction temperature of 150°C and exhibits low leakage (≤1 µA at 25°C, ≤250 µA at 125°C) under rated reverse voltage.
Its DO-214AB (SMC) package enables automated placement and provides robust thermal performance (RθJA = 44°C/W), while the glass-passivated junction ensures stable long-term operation in harsh environments including automotive under-hood conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - maximum repetitive reverse blocking voltage; defines safe operating ceiling in high-voltage DC-DC or snubber networks |
| IF | 15 A - continuous average forward current; supports sustained power conversion without derating below 75°C ambient |
| IFSM | 350 A - non-repetitive surge rating (8.3 ms sine); handles inrush and transient overloads in automotive lighting and starter systems |
| VF | ≤1.1 V @ 15 A, 25°C - low conduction loss improves efficiency in high-current rectification stages |
| RθJL | 8 °C/W - low junction-to-lead thermal resistance enables direct PCB copper pour heat sinking without heatsink |
| CJ | 93 pF @ 1 MHz, 4 V - junction capacitance impacts high-frequency switching noise and EMI in snubber design |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode-indicated band; matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to input/high-side rail; must accommodate 15A continuous and 350A surge |
| Cathode | Forward current exit / reverse voltage reference | Marked by band; ties to output/low-side; defines polarity-sensitive placement in layout |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock per stress test requirements |
| Glass-passivated junction | Prevents moisture ingress and surface contamination, ensuring stable VF and IR over lifetime in humid environments |
| MSL Level 1 | No floor life limitation; can be stored indefinitely before reflow without baking preconditioning |
| RoHS + halogen-free | Complies with IEC 61249-2-21 and EU RoHS directives; suitable for green manufacturing and end-of-life recycling |
Applications
| DC–DC Converter | Automotive Lighting |
|---|---|
Use Scenario: High-efficiency 12V–48V bidirectional DC-DC stage in mild-hybrid vehicles. IC Role / Device Role / Timing Role: Primary output rectifier handling 15A continuous current with minimal conduction loss. Use Value: 1.1V VF reduces power dissipation by ~16.5W vs. higher-VF alternatives at full load, lowering thermal stress on PCB. | Use Scenario: LED headlamp driver with active snubbing during PWM dimming transitions. IC Role / Device Role / Timing Role: Snubber diode clamping inductive kickback from high-side switch turn-off. Use Value: 1000V VRRM safely absorbs >800V transients common in 48V automotive bus systems. |
| Snubber Network | General-Purpose Rectification |
Use Scenario: RCD snubber across flyback transformer primary in onboard charger auxiliary supply. IC Role / Device Role / Timing Role: Fast-recovery rectifier absorbing energy during MOSFET turn-off. Use Value: 93pF junction capacitance balances snubber response speed and EMI generation in 100–500kHz switching. | Use Scenario: Input bridge rectification in industrial AC-DC power supplies with 230VAC input. IC Role / Device Role / Timing Role: Single-phase rectifier delivering 15A average DC output. Use Value: 350A IFSM withstands cold-start surges without degradation, supporting reliable field deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1510DJF | 15A, 1000V, TO-277 package; higher RθJA (60°C/W), no AEC-Q101 qualification | Targeted at industrial power supplies; not validated for automotive temperature cycling or vibration | Preferred where cost is prioritized over automotive qualification and thermal performance is managed via heatsinking |
| VS-15EWH10-M3 | 15A, 1000V, DO-214AB; AEC-Q101 qualified; slightly higher VF (1.15V max) | Same automotive use cases; marginally lower efficiency at full load due to higher forward drop | Drop-in alternative when S15MCH lead time is constrained; requires validation of thermal margin at 15A continuous |
Compared with STTH1510DJF and VS-15EWH10-M3, the S15MCH delivers superior thermal performance (RθJL = 8°C/W) and guaranteed automotive qualification, making it optimal for space-constrained, high-reliability 1000V rectification where board-level heatsinking is impractical.
Availability
S15MCH is available at Aetrix Electronics and suitable for automotive lighting, DC-DC converter, and snubber applications requiring stable component supply, AEC-Q101 compliance, and long-lifecycle support.
Supply support for S15MCH 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 global automotive, industrial, and consumer markets since 1979.
The S15MCH belongs to TSC's AEC-Q101-qualified S15xCH rectifier family, engineered specifically for high-reliability, high-voltage surface-mount rectification in automotive power systems and industrial switching supplies.
FAQ
What is the maximum junction temperature rating for the S15MCH?
The S15MCH has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet (Version A2102). This allows continuous operation in under-hood automotive environments when properly mounted on thermally enhanced PCBs. The S15MCH maintains specified electrical parameters up to this limit, provided thermal design meets RθJL = 8°C/W constraints.
Is the S15MCH pin-compatible with other devices in the S15xCH series?
Yes - all S15xCH variants (S15GCH, S15JCH, S15KCH, S15MCH) share identical DO-214AB (SMC) packaging, pinout, and mechanical footprint. The S15MCH uses the same anode/cathode terminal configuration and marking orientation as the rest of the series, enabling direct substitution based on required VRRM without layout changes.
Does the S15MCH require pre-baking before reflow soldering?
No - the S15MCH is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and does not require baking prior to reflow. This simplifies manufacturing logistics and eliminates moisture-related popcorning risk during assembly. The S15MCH's matte tin-plated leads also ensure reliable solder wetting without additional flux activation steps.
What is the reverse leakage current specification for the S15MCH at elevated temperature?
At TJ = 125°C and rated VRRM, the S15MCH exhibits a maximum reverse leakage current (IR) of 250 µA, per the Electrical Specifications table in the Taiwan Semiconductor datasheet. This value is measured using a 30ms pulse test and confirms stable blocking behavior under high-temperature automotive operating conditions. The S15MCH maintains <1 µA leakage at 25°C.
Can the S15MCH be used in snubber circuits for 48V automotive systems?
Yes - the S15MCH's 1000V VRRM provides ample margin against transient spikes exceeding 800V commonly seen in 48V automotive bus switching events. Its 350A IFSM rating and low RθJL (8°C/W) allow it to absorb snubber energy without thermal runaway. The S15MCH is explicitly listed in the Applications section for snubber use, confirming suitability in this role.
S15MCH 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):
- 1000 V
- Current - Average Rectified (Io):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 15 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 µA @ 1000 V
- Capacitance @ Vr, F:
- 93pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S15MCH FAQ
1.How can I place an order for S15MCH through Aetrix?
Please submit a Request for Quotation (RFQ) for S15MCH 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 S15MCH reliable?
The price and inventory of S15MCH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S15MCH is usually 5 days.
3.What payment methods are accepted for S15MCH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S15MCH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S15MCH?
S15MCH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S15MCH 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 S15MCH?
For technical support, including S15MCH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S15MCH requirements.
6.How does Aetrix verify that S15MCH is sourced from the original manufacturer or authorized distributors?
All S15MCH 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 S15MCH meets industry standards.
7.What is the process for return or replacement of S15MCH?
All S15MCH units undergo pre-shipment inspection (PSI). If there is an issue with S15MCH, 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 S15MCH part is unused and in its original packaging.
Return procedure for S15MCH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S15MCH 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…
