PCF7936AS vs QQ9937 مقارنة
مقارنة تفصيلية جنبًا إلى جنب لـ PCF7936AS بواسطة NXP Semiconductors و QQ9937 بواسطة Belden. قارن المواصفات الرئيسية والمعلمات الكهربائية والتغليف وحالة دورة الحياة والأسعار والتوافر لتحديد أفضل مكوّن لمتطلبات تصميمك.
مقارنة المواصفات
| المعامل | PCF7936AS | QQ9937 |
|---|---|---|
| العلامة التجارية | NXP Semiconductors | Belden |
| الفئة | RF Modules | Cables & Wires |
| حالة دورة الحياة | نشط | نشط |
| Product Type | Security Transponder (HITAG 2) | Fast Ethernet Cat5e Data Single-Ended Cordset |
| Carrier Frequency | 125 kHz | — |
| Protocol | HITAG 2 with mutual authentication | — |
| User Memory | 256 bits (32 x 8 bits) | — |
| Transaction Time | 39 ms (typical) | — |
| Power Supply | Derived from LF magnetic field (passive, no battery) | — |
| Package Type | SOT-385-1 (glass-encapsulated transponder) | — |
| Mounting Form | Embedded in key head / plastic overmold | — |
| Authentication Type | Mutual (challenge-response, rolling code) | — |
| Read/Write | Read/Write | — |
| درجة حرارة التشغيل | -40C to +85C (industrial / automotive) | -30C to +75C |
| Storage Temperature | [DATA_NEEDED: storage temperature] | — |
| ESD Rating | [DATA_NEEDED: ESD rating] | — |
| Encryption Algorithm | HITAG 2 proprietary stream cipher | — |
| Target Application | Automotive immobilizer, RKE, access control | — |
| حالة RoHS | Compliant | Compliant |
| REACH Status | Compliant | — |
| Manufacturer | — | Belden Inc. |
| Cable Category | — | Cat5e |
| Conductor Size | — | 24-25 AWG |
| Conductor Material | — | Tinned Copper |
| Insulation Material | — | FPE (Foamed Polyethylene) |
| Shield Type | — | Aluminum/Mylar Foil + Tinned Copper Braid (overall) |
| Jacket Material | — | PVC |
| Jacket Rating | — | CM |
| Nominal Characteristic Impedance | — | 100 ohms |
| Bandwidth Rating | — | 100 MHz |
| Capacitance (typical) | — | 13 pF/ft |
| Cable Family | — | DataTuff / Industrial Ethernet |