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MtronPTI M7S43FAJ 8.000000
Non-RoHS Compliant
M7S43FAJ 8.000000_Datesheet
M7S43FAJ 8.000000 Specification Summary
1. Product Overview
M7S43FAJ 8.000000 is a high-reliability crystal oscillator from Mtron’s M7S Series, designed for industrial, avionic, and military applications. It operates at a fixed nominal frequency of 8.000000 MHz, features a 5.0V supply voltage, and delivers HCMOS/TTL-compatible output with robust environmental performance. The device comes in a hermetically sealed 9x14 mm "J" lead ceramic package (gold flash leads) and is RoHS-compliant, offering excellent frequency stability, low jitter, and wide temperature tolerance. Its hermetic sealing, resistance-weld construction, and compliance with military-grade standards (MIL-STD-202, MIL-STD-883) make it suitable for harsh environments in communication systems, navigation equipment, test instruments, and military radios.
2. Key Features
- Oscillator Type: Fixed-frequency crystal oscillator (HCMOS/TTL output).
- Nominal Frequency: 8.000000 MHz (1.0–80 MHz range compatibility).
- Frequency Stability: ±25 ppm (precise frequency control for critical applications).
- Supply Voltage: 4.500–5.500 V DC (nominal 5.000 V DC).
- Output Characteristics:
- Timing Performance:
- Environmental & Mechanical Traits:
- Package: 9x14 mm "J" lead ceramic (gold flash leads), hermetically sealed, resistance-weld construction.
- Compliance: RoHS-compliant; MIL-STD-883 screening compatible.
3. Part Number Decoding
| Segment | Code | Description |
|---|---|---|
| M7S | M7S | Series: 5.0V supply voltage crystal oscillator. |
| 4 | 4 | Frequency Stability: ±25 ppm. |
| 3 | 3 | Operating Temperature Range: -55°C to +105°C. |
| F | F | Output Type: Fixed (non-tristate). |
| A | A | Symmetry/Logic Compatibility: 40/60% duty cycle (HCMOS/TTL). |
| J | J | Package/Lead Configuration: Gold flash "J" leads. |
| 8.000000 | 8.000000 | Nominal Frequency: 8.000000 MHz. |
4. Pin Configuration (4-Pad "J" Lead Package)
| Pad Number | Function | Description |
|---|---|---|
| 1 | Tristate or N/C | Not used (fixed output type, no tristate function). |
| 2 | Ground | Power and signal ground (0V reference). |
| 3 | Output | HCMOS/TTL-compatible signal output (8.000000 MHz). |
| 4 | +VDD | Positive supply voltage (4.500–5.500 V DC). |
5. Electrical Specifications (Tambient = +25°C unless specified)
5.1 Supply & Current
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions |
|---|---|---|---|---|---|---|
| Supply Voltage | VDD | 4.500 | 5.000 | 5.500 | V DC | - |
| Supply Current | IDD | - | 35 | 85 | mA | Frequency-dependent |
5.2 Frequency & Stability
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions |
|---|---|---|---|---|---|---|
| Nominal Frequency | Fo | - | 8.000000 | - | MHz | - |
| Frequency Stability | - | - | - | ±25 | ppm | As per ordering code |
| Aging (1st Year) | - | - | ±2 | ±3 | ppm/year | - |
| Aging (Thereafter) | - | - | - | ±2 | ppm/year | - |
5.3 Output & Timing
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions |
|---|---|---|---|---|---|---|
| Duty Cycle Symmetry | - | 40 | - | 60 | % | ½ VDD (logic "A" configuration) |
| Logic "1" Level | VOH | VDD - 0.5 | 90% VDD | - | V | TTL load; HCMOS load |
| Logic "0" Level | VOL | - | 10% VDD | 0.5 | V | HCMOS load; TTL load |
| Output Current | - | - | - | ±16 | mA | - |
| Rise Time | TR | - | 7 | - | ns | 1–40 MHz range |
| Fall Time | TF | - | 6 | - | ns | 1–40 MHz range |
| Random Jitter (RMS) | RJ | - | 5 | - | ps | 1–80 MHz range |
| Startup Time | - | - | - | 10 | ms | Tambient = +25°C |
6. Mechanical Specifications
6.1 Package Dimensions (Units: inches / millimeters)
| Parameter | Min | Nom | Max |
|---|---|---|---|
| Length | - | 0.354 (9.00) | 0.385 (9.78) |
| Width | - | 0.551 (14.00) | 0.560 (14.22) |
| Height | - | 0.118 (3.00) | 0.185 (4.70) |
| Lead Pitch | - | 0.200 (5.08) | - |
| Lead Thickness | - | 0.018 (0.46) | 0.035 (0.89) |
| Recommended Solder Pad Pitch | - | 0.300 (7.62) | - |
6.2 Package & Material
- Package Type: 9x14 mm "J" lead ceramic, hermetically sealed (resistance-weld construction).
- Lead Material: Gold flash (J-lead configuration).
- Hermeticity: 1×10⁻⁸ atm·cc/s of Helium.
7. Environmental Specifications
| Parameter | Min | Max | Unit | Conditions |
|---|---|---|---|---|
| Operating Temperature | -55 | +105 | °C | As per ordering code "3" |
| Storage Temperature | -55 | +125 | °C | - |
| Mechanical Shock | - | 100 | g’s | MIL-STD-202, Method 213, Condition C (6 ms duration, ½ sinewave) |
| Mechanical Vibration | - | 10 | g’s | MIL-STD-202, Methods 201 & 204 (10–2000 Hz) |
| Soldering Temperature | - | 260 | °C | Lead-free solder profile (max 10 seconds at 260°C; ramp-up ≤3°C/second) |
8. Compliance & Certifications
- RoHS: Compliant (per RoHS directive).
- Military Standards: Compatible with MIL-STD-883 screening; meets MIL-STD-202 for shock/vibration.
- Hermeticity: Meets EIAJ-STD-002 for solderability.
- Environmental: Lead-free solder compatible (see Figure 1 in original datasheet for solder profile).
9. Applications
- Avionics and aerospace systems.
- Military radios and communication equipment.
- Navigation systems.
- Test & measurement instruments.
- Industrial control and instrumentation.
- High-reliability embedded systems.
10. Usage Notes
- Avoid exceeding maximum supply voltage (5.500 V DC) to prevent output degradation.
- Ensure output load matches 10 TTL or 50 pF (1–80 MHz range) for optimal performance.
- Follow recommended solder profile (260°C max for 10 seconds) to protect hermetic sealing.
- Store in dry environments (-55°C to +125°C) when not in use to maintain reliability.
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